Instruction Manual

pH 210 pH 212

pH 211 pH 213

Microprocessor-based pH/mV/C Bench Meters

CAL CFM C C MEM MR

rize Re ading
RANG ry Re call E Se lect pH COMM /

libratio

ORP unica tion
pH 21 Micro 3 proce ssor pH M eter
Start Calib ration Selec t 1 st Buffe r RANG rm 1 st Buffe E Selec r t 2 nd Buffe Confi r rm 2 nd Buffe r CO Confi
w w w. h a n n a i n s t. c o m
Dear Customer, Thank you for choosing a Hanna Instruments product. Please read this instruction manual carefully before using the instruments. This manual will provide you with the necessary information for correct use of the instruments, as well as a precise idea of their versatility. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com or turn the back cover for our worldwide contact list. These instruments are in compliance with directives.

PRELIMINARY EXAMINATION

Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipping. If there is any damage, notify your Dealer or the nearest Hanna Customer Service Center. Each instrument is supplied with: HI 1131B Glass-body Combination pH Electrode HI 7669/2W Temperature Probe HI 76404 Electrode Holder pH 4.01 & 7.01 Buffer Solutions, 20 mL each HI 7071S Electrolyte Solution 12VDC Power Adapter Instruction Manual Note: Save all packing material until you are sure that the instrument functions correctly. All defective items must be returned in the original packing with the supplied accessories.

WARRANTY

pH 210, pH 211, pH 212 and pH 213 are guaranteed for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. Electrodes and probes are guaranteed for six months. This warranty is limited to repair or replacement free of charge. Damage due to accidents, misuse, tampering or lack of prescribed maintenance is not covered. If service is required, contact the dealer from whom you purchased the instrument. If under warranty, report the model number, date of purchase, serial number and the nature of the problem. If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization number from the Technical Service department and then send it with shipping costs prepaid. When shipping any instrument, make sure it is properly packed for complete protection.

GENERAL DESCRIPTION

The Hanna pH 210, pH 211, pH 212 and pH 213 are microprocessorbased pH and Temperature bench meters. pH 211 and pH 213 can also measure ion concentration (ISE) and Oxidation Reduction Potential (ORP) in the mV range. pH measurements are compensated for temperature effect manually or automatically with the HI 7669/2W temperature probe. The instrument is equipped with a large easy-to-read LCD which shows the pH (or mV) and temperature simultaneously, together with graphic symbols. The calibration process is guided step by step through clear indications on the LCD. A stability indicator makes the calibration procedure error-free. Through the RS232 serial port data can be transferred to a PC (pH 212 and pH 213 only).

TABLE OF CONTENTS

WARRANTY.... 2 PRELIMINARY EXAMINATION... 3 GENERAL DESCRIPTION... 3 FUNCTIONAL DESCRIPTION pH 210 AND pH 211.. 4 pH 210 AND pH 211 SPECIFICATIONS.. 5 FUNCTIONAL DESCRIPTION pH 212 AND pH 213.. 6 pH 212 AND pH 213 SPECIFICATIONS.. 7 OPERATIONAL GUIDE.. 8 pH CALIBRATION... 11 TEMPERATURE CALIBRATION (for technical personnel only). 14 mV CALIBRATION (pH 213 only) (for technical personnel only). 16 PC INTERFACE (pH 212 & pH 213 only). 17 pH BUFFER TEMPERATURE DEPENDENCE.. 19 ELECTRODE CONDITIONING & MAINTENANCE. 20 TROUBLESHOOTING GUIDE... 23 TEMPERATURE CORRELATION FOR pH SENSITIVE GLASS.. 24 ACCESSORIES.... 25 2
Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice. 3
FUNCTIONAL DESCRIPTION p H 210 AND p H 211

Front Panel

p H 210 AND p H 211 SPECIFICATIONS

2.00 to 16.00 pH RANGE

Primary LCD Secondary LCD
399.9 mV (pH 211 only) 2000 mV (pH 211 only) 9.9 to 120.0 C 0.01 pH 0.1 mV (pH 211 only) 1 mV (pH 211 only) 0.1 C 0.01 pH

Functions pH Calibration

CAL / CFM /

CAL CFM

Memorize Reading Memory Recall

Start Calibration

Select 1 Buffer

RANGE Select pH / ORP

Confirm 1 Buffer

Select 2 Confirm 2

Buffer

RE SOLUTION

MEM MR
pH 211 Microprocessor pH Meter

Rear Panel

POWER 12VDC

ACCURACY @ 20C / 68F

0.2 mV (399.9 mV) 1 mV (2000 mV) 0.5 C (0.0 100.0 C) 1 C (outside) (excluding probe error) 1 or 2 point calibration, 5 buffers a va ila b le (4.01, 6.86, 7.01, 9.18, 10.01) Manual or Automatic from: 9.9 to 120.0 C (14.2 to 248.0 F) HI 1131B (included) HI 7669/2W (included) 1012 ohms 12 VD C adapter (included) 240x182x74 mm (9.4x7.1x2.9) 1.1 Kg (2.5 lb); kit with holder 2.5 Kg (5.5 lb) 0 to 50 C (32 to 122 F) max. 95% RH non-condensing 2 years

pH Calibration

1) Liquid Crystal Display (LCD). 2) CFM key, to confirm different values. 3) CAL key, to enter or exit/escape calibration mode. 4) C key, to manually decrease temperature or select pH buffer. 5) C key, to manually increase temperature or select pH buffer. 6) MR key, to recall the stored value. 7) MEM key, to store a value into memory. 8) RANGE key, to select measurement range (pH 211 only). 9) ON/OFF switch. 10) Power adapter socket. 11) BNC electrode connector. 12) Electrode reference socket. 13) Temperature probe socket.

Temperature compensation pH E lectrode Temperature probe Input impedance Power supply D imensions Weight E nvironment Warranty
FUNCTIONAL DESCRIPTION pH 212 AND pH 213
pH 212 AND pH 213 SPECIFICATIONS
2.00 to 16.00 pH 2.000 to 16.000 pH RANGE 999.9 mV (pH 213 only) 2000 mV (pH 213 only) 9.9 to 120.0 C 0.01 pH 0.001 pH RE SOLUTION 0.1 mV (pH 213 only) 1 mV (pH 213 only) 0.1 C 0.01 pH 0.002 pH

CAL / CFM / CFM

RANGE Select pH / ORP COMM RS232 Communication
pH 213 Microprocessor pH Meter
0.5 mV (999.9 mV) 1 mV (2000 mV) 0.5 C (0.0 100.0 C) 1 C (outside) (excluding probe error) 1 or 2 point calibration, 5 buffers a va ila b le (4.01, 6.86, 7.01, 9.18, 10.01) Manual or Automatic from: 9.9 to 120 C (14.2 to 248 F) HI 1131B (included) HI 7669/2W (included) 1012 ohms RS232 opto-isolated 12 VD C adapter (included) 240x182x74 mm (9.4x7.1x2.9) 1.1 Kg (2.5 lb); kit with holder 2.5 Kg (5.5 lb) 0 to 50 C (32 to 122 F) max. 95% RH non-condensing 2 years
1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) 14) 15)
Liquid Crystal Display (LCD). CFM key, to confirm different values. CAL key, to enter or exit/escape calibration mode. C key, to manually decrease temperature or select pH buffer. C key, to manually increase temperature or select pH buffer. MR key, to recall the stored value. MEM key, to store a value into memory. COMM key, to set the baud rate and the command prefix. RANGE key, to select measurement range. ON/OFF switch. Power adapter socket. BNC electrode connector. Electrode reference socket. Temperature probe socket. RS232 serial communication connector.
pH Calibration Temperature compensation pH E lectrode Temperature probe Input impedance Computer interface Power supply D imensions Weight E nvironment Warranty

OPERATIONAL GUIDE

POWER CONNECTION Plug the 12 VDC adapter into the power supply socket. Notes: These instruments use non volatile memory to retain the pH, mV, temperature calibrations and all other settings, even when unplugged. Make sure a fuse protects the main line. ELECTRODE AND PROBE CONNECTIONS For pH or ORP measurements connect an electrode with internal reference to the BNC connector on the back of the instrument. For electrodes with a separate reference connect the electrodes BNC to the BNC connector and the reference electrode plug to the reference socket. For temperature measurements and automatic temperature compensation connect the temperature probe to the appropriate socket. INSTRUMENT START-UP Turn the instrument on by pressing the ON/OFF switch. All LCD tags are displayed and a beep is heard while the instruments perform a self test (pH 212 and pH 213 only). pH 210 & pH 211

The pH is displayed on the primary LCD and the temperature on the secondary LCD.
If the pH reading is out of range, ---- will be displayed on the LCD. If measurements are taken successively in different samples, it is recommended to rinse the electrode thoroughly with deionized water or tap water and then with some of the next sample in order to prevent cross-contamination. The pH reading is affected by temperature. In order to measure the pH accurately, the temperature effect must be compensated for. To use the Automatic Temperature Compensation feature, connect and submerge the HI 7669/2W temperature probe into the sample as close as possible to the electrode and wait for a few seconds. If the temperature of the sample is known,simple manual temperature compensation can be performed by disconnecting the temperature probe. The display will then show the default temperature of 25 C or the last recorded temperature reading with the C tag blinking. The temperature can now be adjusted with the ARROW keys (from -9.9 C to 120.0 C).

pH 212 & pH 213

(p pH only) ORP MEASUREMENTS (pH 211 and pH 213 only) An optional ORP electrode must be used to perform ORP measurements (see Accessories). Oxidation-reduction potential (REDOX) measurements provide the quantification of the oxidizing or reducing power of the tested sample. To correctly perform a redox measurement, the surface of the ORP electrode must be clean and smooth. Press RANGE to enter mV range. Submerge the tip of the ORP electrode (4 cm/ 1") into the sample to be tested and allow a few seconds for the reading to stabilize. 9

MEASUREMENTS

Make sure the instrument has been calibrated before taking pH measurements. Submerge the electrode tip and the temperature probe approximately 4 cm (1) into the sample to be tested and stir gently. Allow time for the electrode to stabilize.
The instrument displays the mV reading on the primary LCD and the temperature on the secondary LCD.

p H CALIBRATION

Calibrate the instrument often, especially if high accuracy is required. The instrument should be recalibrated: Whenever the pH electrode is replaced. At least once a week. After testing aggressive chemicals. PREPARATION Pour small quantities of the buffer solutions into clean beakers. If possible use plastic or glass beakers to minimize any EMC interferences. For accurate calibration and to minimize cross-contamination, use two beakers for each buffer solution: one for rinsing the electrode and one for calibration. If you are measuring in the acidic range, use pH 7.01 as first buffer and pH 4.01 as second buffer. If you are measuring in the alkaline range, use pH 7.01 as first buffer and pH 10.01 or pH 9.18 as second buffer. PROCEDURE Calibration has a choice of five memorized buffers: pH 4.01, 6.86, 7.01, 9.18 and 10.01. It is recommended to perform a two-point calibration. However, onepoint calibration is also provided by the instruments. TWO-POINT CALIBRATION Submerge the pH electrode and the temperature probe approximately 4 cm (1") into a buffer solution and stir gently. The temperature probe should be close to the pH electrode. Press CAL. The CAL and tags will appear and 7.01 buffer will be displayed on the secondary LCD.

If the reading is out of range, ---- will be displayed on the LCD. TEMPERATURE MEASUREMENTS Connect the HI 7669/2W temperature probe to the appropriate socket and turn the instrument on. Immerse the temperature probe into the sample and allow the reading on the secondary LCD to stabilize. MEMORY FUNCTION Press and hold down MEM. The last reading will appear on the LCD along with MEM tag until MEM is released.
Press MR and the previously memorized reading will be displayed with MEM tag on the LCD. only) BEEP SETTING (pH 212 and pH 213 only) Press and hold down C and MEM keys and then power on the instrument. After about 5 seconds the meter will display BEEP setting menu. Use the ARROW keys to change the current setting. Press CFM to confirm or CAL to escape without saving.

BUFFER pH

If necessary, press the ARROW keys to select a different buffer value.
The tag will blink on the LCD until the reading is stable. 10 11
When the reading is stable and close to the selected buffer, READY tag will appear and CFM tag will blink. Press CFM to confirm calibration. The calibrated value is then displayed on the primary LCD and the secondary LCD will display CFM the second expected buffer value.

CAL pH BUFFER pH

Press RANGE to display the temperature reading on the LCD during calibration (pH 211, pH 212, pH 213 only). ONE-POINT CALIBRATION Proceed as described in Two-point calibration section. Press CAL after the first calibration point was confirmed. CAL The instrument will return to measurement mode and will memorize the one-point calibration data. Note: Press and hold down CFM and then press CAL. The instrument sets default calibration parameters, displays CLR message for a few seconds and then returns to normal measurement mode.
Note: The instruments will automatically skip the buffer used for the first point. It also skips 6.86 if 7.01 buffer was used and viceversa. Likewise, it will skip 9.18 if 10.01 buffer was used and viceversa. After the first calibration point is confirmed, immerse the pH electrode and the temperature probe approximately 4 cm (1) into the second buffer solution and stir gently. The temperature probe should be close to the pH electrode. If necessary, press the ARROW keys to select a different buffer value.
The tag will blink on the LCD until the reading is stable. When the reading is stable, READY tag will appear and CFM tag will blink. Press CFM to confirm calibration. The instrument will return to measurement mode. CFM Notes: If the value measured by the meter is not close to the selected buffer, WRONG and WRONG tags will blink alternately. In this case check if the correct buffer has been used, or regenerate the electrode by following the cleaning procedure (see page 22). If necessary, change the buffer or the electrode. The WRONG tag and temperature value are displayed blinking if the temperature reading is out of the defined temperature range of the buffer. Calibration cannot be confirmed in this situation.

TEMPERATURE CALIBRATION (for technical personnel only)
All the instruments are factory calibrated for temperature. Hannas temperature probes are interchangeable and no temperature calibration is needed when they are replaced. If the temperature measurements are inaccurate, temperature recalibration should be performed. For an accurate recalibration, contact your dealer or the nearest Hanna Customer Service Center, or follow the instructions bellow. Prepare a vessel containing ice and water and another one containing hot water (at a temperature of around 50 C). Place insulation material around the vessels to minimize temperature changes. Use a calibrated thermometer with a resolution of 0.1 C as a reference thermometer. With the instrument off, press and hold down the CAL&MEM keys, then power on the instrument. The CAL tag will appear and the secondary LCD will show 0.0 C.
Immerse the temperature probe in the second vessel as near as possible to the reference thermometer. Allow a few seconds for the probe to stabilize. Use the ARROW keys to set the reading on the secondary LCD to that of the hot water.
When the reading is stable and close to the selected calibration point, READY tag will appear and CFM tag will blink. Press CFM to confirm. The instrument returns to measurement mode. Note: If the reading is not close to the selected CFM calibration point, WRONG tag will blink. Change the temperature probe and restart calibration.
Immerse the temperature probe in the vessel with ice and water as near as possible to the reference thermometer. Allow a few seconds for the probe to stabilize. Use the ARROW keys to set the reading on the secondary LCD to that of ice and water, measured by the reference thermometer.
When the reading is stable and close to the selected calibration point, READY tag will appear and CFM tag will blink. Press CFM to confirm. The secondary LCD will show 50.0 C.
(p only) m V CALIBRATION ( p H 213 only ) (for technical personnel only)
All the instruments are factory calibrated for mV. Hannas ORP electrodes are interchangeable and no mV calibration is needed when they are replaced. If the mV measurements are inaccurate, mV recalibration should be performed. For an accurate recalibration, contact your dealer or the nearest Hanna Customer Service Center, or follow the instructions below. A two or three-point calibration can be performed at 0.0 mV, 600.0 mV and 1800.0 mV. Attach to the BNC connector a mV simulator with an accuracy of 0.1 mV. With the instrument off, press and hold down the MR&CFM keys, then power on the instrument. The CAL tag will appear and the secondary LCD will show 0.0 mV. Set 0.0 mV on the simulator. When the reading is stable and close to the selected calibration point, READY tag will appear and CFM tag will blink. Press CFM to confirm. The secondary LCD will display 600 mV. Set 600.0 mV on the simulator. When the reading is stable and close to the selected calibration point, READY tag will appear and CFM tag will blink. Press CFM to confirm. The secondary LCD will display 1800 mV. Set 1800.0 mV on the simulator. When the reading is stable and close to the selected calibration point, READY tag will appear and CFM tag will blink. Press CFM to confirm. The instrument returns to measurement mode. Notes: If the reading is not close to the selected calibration point, WRONG tag will blink. Verify calibration condition or contact your vendor if you can not calibrate. Press CAL in any moment of the calibration process. The instrument will return to measurement mode. If calibration process is stopped after 600 mV is confirmed, the 600 mV range is calibrated and calibration parameters are memorized. 16

PC INTERFACE (pH only) (p H 212 & p H 213 only )
Data transmission from the instrument to the PC can be done with the HI 92000 Windows compatible software (optional). HI 92000 also offers graphing and on-line help feature. Data can be exported to the most popular spreadsheet programs for further analysis. To connect your instrument to a PC, use the optional Hanna HI 920010 cable connector. Make sure that your instrument is switched off and plug one connector to the instrument RS232C socket and the other into the serial port of your PC. Notes: Other cables than HI 920010 may use a different configuration. In this case communication between instrument and PC may not be possible. If you are not using Hanna Instruments HI 92000 software, please see the following instructions. SETTING THE BAUD RATE AND THE COMMAND PREFIX To set the instrument baud rate, press COMM while in measurement mode. The primary LCD COMM will show the current baud rate. Use the ARROW keys to change the displayed value (150; 300; 600; 1200; 2400 factory setting; 4800; 9600).
Press CFM to confirm. The primary LCD will show the current command prefix (factory setting is 16). Use the ARROW keys to change the displayed value (between 0 and 47). Press CFM to confirm. The meter returns to measurement mode. CFM Note: The command prefix must not be changed if HI 92000 PC software is used.
SENDING COMMANDS FROM PC It is also possible to remotely control the instrument with any terminal program. Use HI 920010 cable to connect the instrument to a PC, start the terminal program and set the communication options as follows: 8, N, 1, no flow control. COMMAND TYPES To send a command to the instrument, follow the next scheme: <DLE> <command> <CR> This line makes the computer send a Data Link Escape character, the command expressed as a 3-character sequence and a CR character. Note: All the terminal programs that support the ANSI escape sequence, represent the DLE character by the string '^P' and the CR character by the string '^M'. SIMPLE COMMANDS PHR sets the range to pH MVR sets the range to mV (pH 213 only) CAL is equivalent to pressing CAL CFM is equivalent to pressing CFM UPC is equivalent to pressing the C key DWC is equivalent to pressing the C key MEM is equivalent to pressing MEM MRR is equivalent to pressing MR COM is equivalent to pressing COMM COMMANDS REQUIRING AN ANSWER Causes the instrument to send the pH reading ("Err 1" is sent if out of range). If the range is set to mV, "Err 6" is sent. MV? Causes the instrument to send the mV reading ("Err 2" is sent if out of range). If the range is set to pH, "Err 6" is sent. TM? Causes the instrument to send the temperature reading ("Err 3" is sent if out of range). Notes: Either small or capital letters can be used. The characters sent by the meter are always capital letters. A CAN character (ASCII Code 24) is sent when the instrument receives an unknown or a corrupted command. Note: Invalid commands will be ignored. pH?

p H BUFFER TEMPERATURE DEPENDENCE
The temperature has an effect on pH. The calibration buffer solutions are affected by temperature changes to a lesser degree than normal solutions. During calibration the instrument will automatically calibrate to the pH value corresponding to the measured or set temperature.
TEMP C F 4. 01 4.01 4.00 4.00 4.00 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.08 4.09 4.11 4.12 4.14 4.16 4.17 4.19 4.20 pH BUFFERS 6. 86 6.98 6.95 6.92 6.90 6.88 6.86 6.85 6.84 6.84 6.83 6.83 6.84 6.84 6.84 6.85 6.86 6.87 6.87 6.88 6.89 7. 01 7.13 7.10 7.07 7.05 7.03 7.01 7.00 6.99 6.98 6.98 6.98 6.98 6.98 6.99 6.99 7.00 7.01 7.02 7.03 7.04 9. 18 9.46 9.39 9.33 9.27 9.22 9.18 9.14 9.11 9.07 9.04 9.01 8.99 8.97 8.95 8.93 8.91 8.89 8.87 8.85 8.83 10. 01 10.32 10.24 10.18 10.12 10.06 10.01 9.96 9.92 9.88 9.85 9.82 9.79 9.77 9.76 9.75 9.74 9.74 9.74 9.75 9.76
During calibration the instrument will display the pH buffer value at 25 C. 18 19
ELECTRODE CONDITIONING & MAINTENANCE
For refillable electrodes: If the filling solution (electrolyte) is more than 2 cm (1") below the fill hole, add HI 7082 or HI 8082 3.5M KCl Electrolyte Solution for double junction or HI 7071 or HI 8071 3.5M KCl+AgCl Electrolyte Solution for single junction electrodes. For faster response, unscrew the fill hole screw during measurements. For AmpHel electrodes: If the electrode does not respond to pH changes, the battery is run down and the electrode should be replaced. MEASUREMENT Rinse the electrode tip with distilled water. Immerse the tip (bottom 4 cm /1) in the sample and stir gently for a few seconds. For a faster response and to avoid cross-contamination of the samples, rinse the electrode tip with a few drops of the solution to be tested, before taking measurements. STORAGE PROCEDURE To minimize clogging and assure a quick response time, the glass bulb and the junction should be kept moist and not allowed to dry out. Replace the solution in the protective cap with a few drops of HI 70300 or HI 80300 Storage Solution or, in its absence, Filling Solution (HI 7071 or HI 8071 for single junction and HI 7082 or HI 8082 for double junction electrodes). Follow the Preparation Procedure on page 20 before taking measurements. Note: NEVER STORE THE ELECTRODE IN DISTILLED OR DEIONIZED WATER. PERIODIC MAINTENANCE
PREPARATION PROCEDURE Remove the protective cap of the pH electrode. DO NOT BE ALARMED IF SALT DEPOSITS ARE PRESENT. This is normal with electrodes. They will disappear when rinsed with water. During transport, tiny bubbles of air may form inside the glass bulb affecting proper functioning of the electrode. These bubbles can be removed by shaking down the electrode as you would do with a glass thermometer. If the bulb and/or junction is dry, soak the electrode in HI 70300 or HI 80300 Storage Solution for at least one hour.

Inspect the electrode and the cable. The cable used for connection to the instrument must be intact and there must be no points of broken insulation on the cable or cracks on the electrode stem or bulb. Connectors must be perfectly clean and dry. If any scratches or cracks are present, replace the electrode. Rinse off any salt deposits with water. For refillable electrodes: Refill the reference chamber with fresh electrolyte (HI 7071 or HI 8071 for single junction or HI 7082 or HI 8082 for double junction electrodes). Allow the electrode to stand upright for 1 hour. Follow the Storage Procedure above. 21
CLEANING PROCEDURE Soak in Hanna HI 7061 or HI 8061 General Cleaning Solution for approximately hour. Protein Soak in Hanna HI 7073 or HI 8073 Protein Cleaning Solution for 15 minutes. Soak in Hanna HI 7074 Inorganic Cleaning Inorganic Solution for 15 minutes. Oil/grease Rinse with Hanna HI 7077 or HI 8077 Oil and Fat Cleaning Solution. IMPORTANT: After performing any of the cleaning procedures, rinse the electrode thoroughly with distilled water, refill the reference chamber with fresh electrolyte (not necessary for gel-filled electrodes) and soak the electrode in HI 70300 or HI 80300 Storage Solution for at least 1 hour before taking measurements. General

TROUBLESHOOTING GUIDE

SYMPTOMS Slow reponse/excessive drift. PROBLE M D irty pH electrode. SOLUTION Soak the electrode tip in HI 7061 or HI 8061 solution for 30 minutes and then clean the electrode. Clean the electrode. Refill with fresh solution (for refillable electrodes only). Soak in HI 70300 or HI 80300 storage solution. Follow the cleaning procedure. If still no results, replace the electrode.
Readings fluctuate up Clogged/dirty junction. and down (noise). Low electrolyte level (refillable electrodes only). Out of range in the mV scale. The meter does not accept the buffer solution for calibration. The display shows "pH" and "----". D ry membrane/junction. Out of order pH electrode.
Out of range in the pH a) Recalibrate the meter. scale. b) Make sure the pH sample is in the specified range. c) Check the electrolyte level and the general state of the electrode. Out of range in the mV scale. Broken temperature probe. Broken pH electrode. E lectrode not connected. Replace the temperature probe. Replace the electrode.
The display shows "mV" and "----". The meter does not work with the temperature probe. The meter fails to calibrate or gives faulty readings. At startup the meter displays all LCD tags permanently.

One of the keys is blocked.
Check the keyboard or contact the vendor. Power off the meter and then power it on. If the error persists, contact the vendor.
"E rr xx" error message Internal error. displayed.
TEMPERATURE CORRELATION FOR p H SENSITIVE GLASS
The resistance of glass electrodes partially depends on the temperature. The lower the temperature, the higher the resistance. It takes more time for the reading to stabilize if the resistance is higher. In addition, the response time will suffer to a greater degree at temperatures below 25 C.

ACCESSORIES

pH BUFFER SOLUTIONS HI 70004P HI 70007P HI 70010P HI 7004L HI 7006L HI 7007L HI 7009L HI 7010L HI 8004L HI 8006L HI 8007L HI 8009L HI 8010L pH 4.01 Buffer Sachets, 20 mL, 25 pcs pH 7.01 Buffer Sachets, 20 mL, 25 pcs pH 10.01 Buffer Sachets, 20 mL, 25 pcs pH 4.01 Buffer Solution, 500 mL bottle pH 6.86 Buffer Solution, 500 mL bottle pH 7.01 Buffer Solution, 500 mL bottle pH 9.18 Buffer Solution, 500 mL bottle pH 10.01 Buffer Solution, 500 mL bottle pH 4.01 Buffer Sol. in FDA approved bottle, 500 mL pH 6.86 Buffer Sol. in FDA approved bottle, 500 mL pH 7.01 Buffer Sol. in FDA approved bottle, 500 mL pH 9.18 Buffer Sol. in FDA approved bottle, 500 mL pH 10.01 Buffer Sol. in FDA approved bottle, 500 mL
Since the resistance of the pH electrode is in the range of 50-200 Mohms, the current across the membrane is in the pico Ampere range. Large currents can disturb the calibration of the electrode for many hours. For these reasons high humidity environments, short circuits and static discharges are detrimental to a stable pH reading. The pH electrodes life also depends on the temperature. If constantly used at high temperatures, the electrode life is drastically reduced. Typical Electrode Life Ambient Temperature 1- 3 years 90 C Less than 4 months 120 C Less than 1 month Alkaline Error High concentrations of sodium ions interfere with readings in alkaline solutions. The pH at which the interference starts to be significant depends upon the composition of the glass. This interfe-rence is called alkaline error and causes the pH to be underestimated. Hannas glass formulations have the indicated characteristics. Sodium Ion Correction for Glass at 20-25 C Concentration pH 13.00 0.1 Mol L-1 Na+ 13.50 14.00 12.50 13.00 1.0 Mol L-1 Na+ 13.50 14.Error 0.10 0.14 0.20 0.10 0.18 0.29 0.40

HI 1332
FC 100B Plastic-body (Kynar), double junction, refillable, combination pH electrode. Use: general purpose for food industry.

12 mm 0.5" FC 100

HI 1413B Glass-body, single junction, flat tip, Viscolene, non-refillable, combination pH electrode. Use: surface measurement.

HI 1413

110 mm 4.3"
FC 200B Plastic-body (Kynar), open junction, conic, Viscolene, non-refillable, combination pH electrode. Use: meat & cheese.
ORP ELECTRODES HI 3131B Glass-body, refillable, combination platinum ORP electrode. Use: titration.

FC 200

HI 3131

150 mm 5.9"

FC 210B Glass-body, double junction, conic, Viscolene, non-refillable, combination pH electrode. Use: milk, yogurt.
HI 3230B Plastic-body (Ultem), gel-filled, combination platinum ORP electrode. Use: general purpose.

FC 210

HI 3230
FC 220B Glass-body, triple-ceramic, single junction, refillable, combination pH electrode. Use: food processing.
HI 4430B Plastic-body (Ultem), gel-filled, combination gold ORP electrode. Use: general purpose.

FC 220

HI 4430
FC 911B Plastic-body (Kynar), double junction, refillable with built-in amplifier, combination pH electrode. Use: very high humidity.
Consult the Hanna General Catalog for more electrodes with screwtype or BNC connectors.

FC 911

Ultem is registered Trademark of "General Electric Co." Kynar is registered Trademark of "Pennwalt Corp."
EXTENSION CABLE FOR SCREW-TYPE ELECTRODES (SCREW TO BNC ADAPTER) HI 7855/1 Extension cable 1 m (3.3') long HI 7855/3 Extension cable 3 m (9.9') long
HI 7855 SERIES CABLE CONNECTORS CONNECTOR AND 3.0 mm (0.12") CABLE WITH BNC
RECOMMENDATIONS FOR USERS Before using these products, make sure they are entirely suitable for the environment in which they are used. Operation of these instruments in residential areas could cause unacceptable interferences to radio and TV equipment, requiring the operator to follow all necessary steps to correct interferences. The glass bulb at the end of the pH electrode is sensitive to electrostatic discharges. Avoid touching this glass bulb at all times. During operation, ESD wrist straps should be worn to avoid possible damage to the electrode by electrostatic discharges. Any variation introduced by the user to the supplied equipment may degrade the instruments EMC performance. To avoid electrical shock, do not use these instruments when voltages at the measurement surface exceed 24 VAC or 60 VDC. To avoid damage or burns, do not perform any measurement in microwave ovens.

CONNECT TO SCREW TYPE ELECTRODES
CONNECT TO THE BNC SOCKET OF THE METER
OTHER ACCESSORIES HI 710005 HI 710006 HI 710012 HI 710013 HI 710014 HI 76405 Voltage adapter from 115 VAC to 12 VDC (USA plug) Voltage adapter from 230 VAC to 12 VDC (European plug) Voltage adapter from 240 VAC to 12 VDC (UK plug) Voltage adapter from 230 VAC to 12 VDC (South Africa plug) Voltage adapter from 230 VAC to 12 VDC (Australia plug) Electrode holder
pH and ORP electrode simulator with 1 m (3.3') coaxial cable ending in female BNC connectors HI 931001 pH and ORP electrode simulator with LCD and 1 m (3.3') coaxial cable ending in female BNC connectors HI 7669/2WTemperature probe with 1 m (3.3') cable HI 92000 Windows compatible software application HI to 9-pin RS232 cable HI 8427
Windows is registered Trademark of "Microsoft Co."
SALES AND TECHNICAL SERVICE CONTACTS

Australia:

Tel. (03) 9769.0666 Fax (03) 9769.0699

China:

Tel. (10) 88570068 Fax (10) 88570060

Egypt:

Tel. & Fax (02) 2758.683

Germany:

Tel. (07851) 9129-0 Fax (07851) 9129-99

Greece:

Tel. (210) 823.5192 Fax (210) 884.0210

Indonesia:

Tel. (21) 4584.2941 Fax (21) 4584.2942

Japan:

Tel. (03) 3258.9565 Fax (03) 3258.9567

Korea:

Tel. (02) 2278.5147 Fax (02) 2264.1729

Malaysia:

Tel. (603) 5638.9940 Fax (603) 5638.9829

Singapore:

Tel. 6296.7118 Fax 6291.6906

South Africa:

Tel. (011) 615.6076 Fax (011) 615.8582

Taiwan:

Tel. 886.2.2739.3014 Fax 886.2.2739.2983

Thailand:

Tel. (662) 619.0708.11 Fax (662) 619.0061

MAN213 12/06

United Kingdom:
Tel. (01525) 850.855 Fax (01525) 853.668
Tel. (401) 765.7500 Fax (401) 765.7575 For e-mail contacts and a complete list of Sales and Technical offices, please see www.hannainst.com.

Instruction Manual

pH211R
Microprocessor-based Bench pH/mV/C Meter with Analog Output

www.hannainst.com

Dear Customer, Thank you for choosing a Hanna Instruments Product. Please read this instruction manual carefully before using the instrument. This manual will provide you with all the necessary information for correct use of the instrument, as well as a precise idea of its versatility in a wide range of applications. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com. This instrument is in compliance with the directives.

PRELIMINARY EXAMINATION

Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipping. If there is any damage, notify your Dealer. Each meter is supplied with: HI 1131B glass body pH electrode with BNC and 1 m cable HI 7669/2W temperature probe HI 76404 electrode holder pH 4.01 & pH 7.01 buffer solutions (20 mL each) HI 7071S electrolyte solution 12 Vdc power adapter Instruction manual Note: Save all packing material until you are sure that the instrument functions correctly. Any defective items must be returned in the original packing with the supplied accessories.

TABLE OF CONTENTS

PRELIMINARY EXAMINATION.. 3 GENERAL DESCRIPTION... 3 FUNCTIONAL DESCRIPTION... 4 SPECIFICATIONS... 5 OPERATIONAL GUIDE.. 6 pH CALIBRATION... 9 ELECTRODE CONDITIONING & MAINTENANCE. 12 TEMPERATURE-RESISTANCE CORRELATION FOR pH SENSITIVE GLASS... 15 TROUBLESHOOTING GUIDE.. 16 ACCESSORIES... 17 WARRANTY... 23

GENERAL DESCRIPTION

The Hanna pH 211R is an advanced microprocessor based bench pH meter easy to operate, perfect for quality control laboratories. pH 211R also measures in the temperature and mV ranges. Temperature compensation is automatic thanks to the HI 7669/2W temperature probe supplied with the instrument. If necessary the user can also set temperature compensation manually. The large display shows pH (or mV) and temperature values simultaneously. The user is guided through the calibration process with simple instructions on the display. The meter also features 0 to 5 V analog output.

FUNCTIONAL DESCRIPTION

SPECIFICATIONS
-2.00 to 16.00 pH 399.9 / 2000 mV -9.9 to 120.0C 0.01 pH 0.1 / 1 mV 0.1C 0.01 pH 0.2 / 1 mV 0.5C 0.03 pH 2 mV / 0.3C

Resolution

Accuracy (@20C/68F)

Typical EMC Deviation

pH Calibration Automatic, 1 or 2 point with 5 memorized buffers (pH 4.01, 6.86, 7.01, 9.18, 10.01) Temperature Compensation Automatic (with HI 7669/2W probe) or manual -9.9 to 120C (14 to 248F) pH Electrode HI 1131B glass body, double junction, refillable, BNC connector and 1 m cable (included) HI 7669/2W (included) to 5 VCC not isolated 10 mV 12 Vdc adapter (included) 0 to 50C (32 to 122F); RH max 95% 240 x 182 x 74 mm (9.4 x 7.1 x 2.9") 1.1 kg (2.4 lb.)
1) Liquid Crystal Display (LCD) 2) CFM key, to confirm calibration values 3) CAL key, to enter or exit calibration mode 4) wC key, to manually decrease temperature or select pH buffer 5) vC key, to manually increase temperature or select pH buffer 6) MR key, to recall the stored value 7) MEM key, to store a value in memory

8) RANGE key, to select measurement range 9) ON/OFF button, to switch the meter on and off 10) Socket for power adapter 11) BNC connector for measurement electrode 12) Reference electrode connector 13) Temperature probe socket 14) RESET button 15) Positive (+) analog output connector 16) Negative (-) analog output connector
Temperature Probe Input Impedance Analog Output Analog Output Accuracy Power supply Environment Dimensions Weight

OPERATIONAL GUIDE

Power Connection
Plug the 12 Vdc adapter into the power supply socket. Note: Make sure the mains line is protected by a fuse.
Electrode and Probe Connections
Connect the BNC of the pH or ORP electrode to the BNC socket on the rear panel. For electrodes with a separate reference, connect the reference electrode plug to the reference socket (#12 on page 4). For temperature measurements and automatic temperature compensation, connect the temperature probe to the appropriate socket. Note: To prevent damage to the pH electrode, remove it from the solution before turning the meter off. With the meter OFF, detach the electrode from the meter and immerse it in the storage solution.
If measurements are taken successively in different samples, it is recommended to rinse the electrode thoroughly with water and then with some of the next sample to be measured. pH readings are affected by temperature. In order for the meter to measure the pH accurately, temperature must be taken into consideration. To use the Automatic Temperature Compensation (ATC) feature, submerge the HI 7669/2W temperature probe into the sample as close to the electrode as possible and wait for a couple of minutes. If the temperature of the sample is known or tests are always performed at the same temperature, you can simply manually compensate for it. For this purpose the temperature probe must be disconnected. The display will then show the default temperature of 25C with the "C" symbol blinking. Note the temperature of the sample using a ChecktempC (HI 98501) or another accurate thermometer as reference.

TAKING pH MEASUREMENTS

Make sure that the instrument has been calibrated for pH before taking pH measurements. Switch the instrument on by pressing the ON button. The meter automatically defaults to the pH measurement mode. Submerge the tip (4 cm / 1") of the electrode and temperature probe into the sample to be tested. Allow a couple of minutes for the electrode to stabilize.
The temperature can now be adjusted with the vC and wC keys.
The pH reading is displayed on the primary LCD and temperature on the secondary one.

4 cm (1")

TAKING ORP MEASUREMENTS

An optional ORP electrode must be used to perform ORP measurements (see accessories). Oxidation-reduction potential (REDOX) measurements provide the quantification of the oxidizing or reducing power of the sample tested. To correctly perform a redox measurement, the surface of the ORP electrode must be clean and smooth.
To view the mV reading, press the RANGE key.
Switch the meter on and press the RANGE key to enter the mV mode.

OUTPUT RECORDER FUNCTION

Connect the recorder to the analog output socket and turn the instrument ON. The value on the analog output will be related with the pH or mV value displayed on the LCD as follows: pH: 14 mV: -2000 analog output: 0V 2.5 V 5V
Submerge the ORP electrode tip (4 cm / 1") into the sample. Allow a few minutes for the reading to stabilize. The meter displays the mV reading on the primary LCD.
The RESET button (#14 on page 4) should only be used when the instrument displays erroneous messages due to strong electrical interference or when the power supply was disconnected before switching the meter off. After pressing RESET, always recelibrate the unit before proceeding.
If reading is out of range, "---" will appear on the LCD.

pH CALIBRATION

TAKING TEMPERATURE MEASUREMENTS
Connect the HI 7669/2W temperature probe to the proper socket on the rear panel and turn the instrument on. Dip the temperature probe in the sample and allow the reading to stabilize. Frequent calibration is recommended. Moreover, the instrument should be re-calibrated for pH: a) whenever the pH electrode is replaced b) at least once a week c) after testing aggressive chemicals d) if higher accuracy is required e) after the RESET button has been pressed

HOLD FUNCTION

Press and hold the MEM key. The last reading will be frozen on the display until MEM is released. During this operation, the MEM indicator is also shown on the LCD.

PREPARATION

Pour small quantities of the buffer solutions into clean beakers. If possible use plastic beakers to minimize any EMC interferences. For accurate calibration and to minimize cross contamination use two beakers for each buffer solution. One for rinsing the electrode and the second for calibration. If you are measuring in the acid range, use pH 4.01 as second buffer; if you are measuring in the alkaline range, use pH 10.01 or pH 9.18 as second buffer.
Press MR to recall the previously memorized reading. The value will be displayed with the MEM indicator on the LCD.

PROCEDURE

Five memorized buffer values are available for calibration: pH 4.01, 6.86, 7.01, 9.18 and 10.01. Calibration can be performed at 1 or 2 points. For best accuracy, a 2 point calibration is recommended.
One-Point Calibration Immerse pH electrode and temperature probe approximately 4 cm (1") into any of the available buffer solutions (pH 4.01, 6.86, 7.01, 9.18 or 10.01) and stir gently. The temperature probe should be close to the pH electrode. Press CAL. The "CAL" and " displayed.

Press CAL to quit calibration. The meter will save the one-point calibration data and return to normal mode. Two-Point Calibration Any two of the 5 memorized buffers can be used for this purpose. However, it is recommended to choose pH 6.86 or 7.01 as the first point and pH 4.01 (acidic sample) or pH 9.18/10.01 (alkaline environment) as the second point. After the first calibration point is confirmed, immerse pH electrode and temperature probe approx. 4 cm (1") in the second buffer solution and stir gently. The temperature probe should be close to the pH electrode. If necessary, press vC or wC to select a different buffer value.
4 cm (1") 4 cm (1")
" indicators, and "7.01" will be
Note: The buffer value displayed on the secondary LCD, varies with temperature. For example, at 20C it shows 4.00, 7.03 and 10.06, while at 25C it shows 4.01, 7.01 and 10.01. If necessary, press vC or wC to select a different buffer value. The "NOT READY" indication will blink on the LCD until the reading has stabilized. When the reading is stable, "READY" and "CFM" will blink. Press CFM to confirm the calibration.
Note: The meter will automatically skip the buffer used for the first point. It also skips pH 6.86 if 7.01 was used, and viceversa, and pH 9.18 if 10.01 was used, and viceversa. The "NOT READY" indication will blink on LCD until the reading has stabilized. When the reading is stable, "READY" and "CFM" will blink. Press CFM to confirm the calibration.
If the reading is close to the selected buffer value, the meter stores the calibration point. The "Stor" message appears on the LCD for 1 second, then the buffer value is displayed on the primary LCD and the secondary LCD displays the second expected buffer value.
If the measured value is not close to the selected buffer, the "WRONG " and "WRONG " symbols will blink alternately. In this case check if the correct buffer has been used or refresh the electrode by following the maintenance procedure (see "Electrode Maintenance" section). If necessary change the buffer or the electrode.
If the reading is close to the selected buffer, the meter stores the calibration point, displays the "Stor" message for 1 second and returns to normal operational mode. If the measured value is not close to the selected buffer, "WRONG " and "WRONG " will blink alternately. In this case check if the correct buffer has been used, or refresh the electrode by following the maintenance procedure (see "Electrode Maintenance" section). If necessary change buffer or electrode. Note: Press RANGE to display the temperature reading on the LCD during calibration.

ELECTRODE CONDITIONING & MAINTENANCE
Note: To prevent damage to the pH electrode, remove it from the solution before turning the meter off. With the meter OFF, detach the electrode from the instrument and immerse it in the storage solution.
For refillable electrodes If the filling solution (electrolyte) is more than 2.5 cm (1") below the fill hole, add HI 7082 3.5M KCl electrolyte solution for double junction or HI 7071 3.5M KCl+AgCl electrolyte solution for single junction electrodes. For a faster response, unscrew the fill hole screw during measurements. For AmpHel electrodes If the electrode does not respond to pH changes, the battery is run down and the electrode should be replaced.

MEASUREMENT

Rinse the electrode tip with distilled water. Immerse the tip (bottom 4 cm /1") in the sample and stir gently for a few seconds. For a faster response and to avoid cross contamination of the samples, rinse the electrode tip with a few drops of the solution to be tested, before taking measurements.

STORAGE

To minimize clogging and assure a quick response time, the glass bulb and the junction should be kept moist and not allowed to dry out. Replace the solution in the protective cap with a few drops of HI 70300 storage solution or, in its absence, filling solution (HI 7071 for single junction or HI 7082 for double junction electrodes). Follow the Preparation Procedure above before taking measurements. Note: NEVER STORE THE ELECTRODE IN DISTILLED OR DEIONIZED WATER.

PERIODIC MAINTENANCE

Inspect the electrode and the cable. The cable used for connection to the meter must be intact and there must be no points of broken insulation on the cable or cracks on the electrode stem or bulb. Connectors must be perfectly clean and dry. If any scratches or cracks are present, replace the electrode. Rinse off any salt deposits with water. For refillable electrodes: Refill the reference chamber with fresh electrolyte (HI 7071 for single junction or HI 7082 for double junction electrodes). Allow the electrode to stand upright for 1 hour. Follow the Storage Procedure above.
AmpHel is a registered Trademark of "Hanna Instruments"
Remove the protective cap. DO NOT BE ALARMED IF SALT DEPOSITS ARE PRESENT. This is normal with electrodes and they will disappear when rinsed with water. During transport tiny bubbles of air may form inside the glass bulb affecting proper functioning of the electrode. These bubbles can be removed by "shaking down" the electrode as you would do with a glass thermometer. If the bulb and/or junction is dry, soak the electrode in HI 70300 storage solution for at least one hour.

CLEANING PROCEDURE

Soak in Hanna HI 7061 general cleaning solution for approximately 30 minutes. Removal of films, dirt or deposits on the membrane/junction: - Protein Soak in Hanna HI 7073 protein cleaning solution for 15 minutes. - Inorganic Soak in Hanna HI 7074 inorganic cleaning solution for 15 minutes. - Oil/grease Rinse with HI 7077 Oil & Fat cleaning solution. IMPORTANT: After performing any of the cleaning procedures rinse the electrode thoroughly with distilled water, refill the reference chamber with fresh electrolyte (not necessary for gel-filled electrodes) and soak the electrode in HI 70300 storage solution for at least 1 hour before taking measurements. TROUBLESHOOTING Evaluate the performance of your electrode based on the following. Noise (readings fluctuate up and down) could be due to: Clogged/Dirty Junction: refer to the Cleaning Procedure. Loss of shielding due to low electrolyte level (in refillable electrodes only): refill with fresh HI 7071 for single junction or HI 7082 for double junction electrodes. Dry Membrane/Junction: soak in HI 70300 storage solution for at least 1 hour. Drifting: soak the electrode tip in warm (approx. 50-60C) Hanna HI 7082 solution for one hour and rinse the tip with distilled water. Refill with fresh HI 7071 for single junction electrodes and HI 7082 for double junction electrodes (refillable electrodes only). Low Slope: refer to the cleaning procedure above. No Slope: check the electrode for cracks in glass stem or bulb and replace the electrode. Slow Response/Excessive Drift: soak the tip in HI 7061 solution for 30 minutes, rinse thoroughly in distilled water and then follow the Cleaning Procedure above. General

TEMPERATURE-RESISTANCE CORRELATION FOR HANNA pH SENSITIVE GLASS
The resistance of glass electrodes partially depends on the temperature. The lower the temperature, the higher the resistance. It takes longer time for the reading to stabilize if the resistance is higher. In addition, the response time will suffer to a greater degree at temperatures below 10C. 2x109 -10 1x109 -10

-10 2x108 1x108 -10

2x107 -10 1x107 -10
-20 -+10+20 +30+40 +50+60+70 +80 +90 C -20 -+10 +20+30+40 +50 +60 +70+80+90 C
Since the resistance of the pH electrode is in the range of 200 Mohm, the current across the membrane is in the pico Ampere range. Large currents can disturb the calibration of the electrode for many hours. For these reasons high humidity environments, short circuits and static discharges are detrimental to a stable pH reading. The pH electrode's life also depends on the temperature. If constantly used at high temperatures, the electrode life is drastically reduced.
Typical Electrode Life Ambient Temperature 90 C 1- 3 years Less than 4 months
120C Less than 1 month High concentrations of sodium ions interfere with readings in alkaline solutions; the pH at which the interference starts to be significant depends upon the composition of the glass. This interference is the alkaline error and causes the pH to be underestimated. Hanna's glass formulations have the indicated characteristics. Alkaline Error Sodium Ion Correction for the Glass at 20-25C Concentration pH Error -1 + 13.00 0.10 0.1 Mol L Na 13.50 0.14 14.00 0.20 12.50 0.10 13.00 0.18 1.0 Mol L-1 Na+ 13.50 0.29 14.00 0.40

TROUBLESHOOTING GUIDE

Symptoms Problem Solution

ACCESSORIES

pH CALIBRATION SOLUTIONS HI 70004P pH 4.01 buffer solution, 20 mL sachet, 25 pcs HI 70007P pH 7.01 buffer solution, 20 mL sachet, 25 pcs HI 70010P pH 10.01 buffer solution, 20 mL sachet, 25 pcs HI 7004L pH 4.01 buffer solution, 500 mL bottle HI 7006L pH 6.86 buffer solution, 500 mL bottle HI 7007L pH 7.01 buffer solution, 500 mL bottle HI 7009L pH 9.18 buffer solution, 500 mL bottle HI 7010L pH 10.01 buffer solution, 500 mL bottle HI 8004L pH 4.01 buffer solution in FDA bottle, 500 mL HI 8006L pH 6.86 buffer solution in FDA bottle, 500 mL HI 8007L pH 7.01 buffer solution in FDA bottle, 500 mL HI 8009L pH 9.18 buffer solution in FDA bottle, 500 mL HI 8010L pH 10.01 buffer solution in FDA bottle, 500 mL ELECTRODE MAINTENANCE SOLUTIONS HI 70300L Storage solution, 500 mL bottle HI 80300L Storage solution in FDA bottle, 500 mL HI 70000P Rinsing solution, 20 mL sachet, 25 pcs HI 7061L General cleaning solution, 500 mL bottle HI 8061L General cleaning solution in FDA bottle, 500 mL HI 7073L Protein cleaning solution, 500 mL bottle HI 8073L Protein cleaning solution in FDA bottle, 500 mL HI 7074L Inorganic cleaning solution, 500 mL bottle HI 7077L Oil & Fat cleaning solution, 500 mL bottle HI 8077L Oil & Fat cleaning solution in FDA bottle, 500 mL HI 7071 3.5M KCl+AgCl electrolyte solution, 4 x 50 mL bottle, for single junction electrodes HI 8071 3.5M KCl+AgCl electrolyte solution in FDA bottle, 4 x 50 mL, for single junction electrodes HI 7072 1M KNO3 electrolyte solution, 4 x 50 mL bottle HI 8072 1M KNO3 electrolyte solution in FDA bottle, 4 x 50 mL HI 7082 3.5M KCl electrolyte solution 4 x 50 mL bottle, for double junction electrodes HI 8082 3.5M KCl electrolyte solution in FDA bottle, 4 x 50 mL, for double junction electrodes

The meter is slow in The electrode is not work- Leave the electrode in a storresponding or gives ing or the reference age solution after cleaning junction is clogged faulty readings the junction. If problem persists, replace the electrode The meter does not ac- Out of order pH electrode Follow the cleaning procecept the 2nd buffer dure. If this doesn't work solution for calibration replace the electrode The reading drifts Display shows: Defective pH electrode Out of range pH scale Replace the electrode a) Recalibrate b) Make sure the pH sample is in the 0 to 14 range c) Check the electrolyte level and the general state of the pH electrode

Display shows:

Out of range tempera- Make sure the temperature ture scale is in the 0 to 100C range and the temperature probe is plugged in Out of range mV scale Electrode not connected
Display shows: "WRONG " and "WRONG " Display shows: "WRONG " and "WRONG "
Erroneous buffer solution Make sure the buffer setting used for offset calibra- is correct and the solution is tion fresh. Replace the buffer if necessary Defective electrode Replace the electrode Erroneous buffer solution Make sure the buffer setting used for slope calibration is correct and the solution is fresh. Replace the buffer if necessary Defective electrode Replace the electrode
The meter does not Out of order temperature Replace the probe work with the tempera- probe ture probe The meter fails to cali- Out of order pH electrode Replace the electrode brate or gives faulty readings
ORP PRETREATMENT SOLUTIONS HI 7091L Reducing pretreatment solution, 500 mL bottle HI 7092L Oxidizing pretreatment solution, 500 mL bottle pH ELECTRODES All electrode part numbers ending in B are supplied with BNC connector and 1 m (3.3') cable.
HI 1330B Glass body, semimicro, single junction, refillable, combination pH electrode. Use: laboratory, vials.
5mm DIA 0.2" 5mm 0.2"

HI mm 4.7"

"S" VERSION
HI 1043B Glass body, double junction, refillable, combination pH electrode. Use: strong acid/alkali.
9.5mm DIA 0.37" 12 mm 0.5"
HI 1331B Glass body, semimicro, single junction, refillable, combination pH electrode. Use: flasks.
8 mm 0.3" 7.5mm DIA 0.29"

HI 1331

210 mm 8.25"
HI 1053B Glass body, triple ceramic, conic shape, refillable, combination pH electrode. Use: emulsions.

12 mm 0.5"

HI 1230B Plastic body, double junction, gel-filled, combination pH electrode. Use: general, field.

HI 1230

120 mm 4.7"

HI 1053

HI 1083B Glass body, micro, Viscolene, non-refillable, combination pH electrode. Use: biotechnology, micro titration.
12 mm 0.5" 5 mm 0.2" 3 mm 0.12" 3.0 mm DIA 0.12"
HI 2031B Glass body, semimicro, conic, refillable, combination pH electrode. Use: semisolid products.

6 mm 0.25"

HI 2031

75 mm 2.95"

HI 1083
HI 1131B Glass body, single junction, refillable, combination pH electrode. Use: general purpose.
HI 1332B Plastic body, double junction, refillable, combination pH electrode. Use: general purpose.

HI 1131

HI 1332
FC 100B PVDF body, double junction, refillable, combination pH electrode. Use: general purpose for food industry.

12 mm 0.5" FC 100

HI 1413B Glass body, single junction, flat tip, Viscolene, non-refillable, combination pH electrode. Use: surface measurement.

HI 1413

110 mm 4.3"
FC 200B PVDF body, open junction, conic, Viscolene, non-refillable, combination pH electrode. Use: meat & cheese.
ORP ELECTRODES HI 3131B Glass body, refillable, combination platinum ORP electrode. Use: titration.

FC 200

HI 3131

150 mm 5.9"

FC 210B Glass body, double junction, conic, Viscolene, non-refillable, combination pH electrode. Use: milk, yogurt.
HI 3230B Plastic body, gel-filled, combination platinum ORP electrode. Use: general purpose.

FC mm 4.7"

FC 220B Glass body, triple-ceramic, single junction, refillable, combination pH electrode. Use: food processing.
HI 4430B Plastic body, gel-filled, combination gold ORP electrode. Use: general purpose.

FC 220

HI 4430
FC 911B PVDF body, double junction, refillable with built-in amplifier, combination pH electrode. Use: very high humidity.

FC 911

Extension cables for screw-type electrodes (screw to BNC adapter) HI 7855/1 Extension cable 1 m (3.3') long HI 7855/3 Extension cable 3 m (9.9') long

HI 7855 SERIES CABLE CONNECTORS CONNECTOR AND 3.0 mm (0.12") CABLE WITH BNC

WARRANTY

All Hanna Instruments meters are guaranteed for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. Electrodes and probes are guaranteed for a period of six months. This warranty is limited to repair or replacement free of charge. Damage due to accident, misuse, tampering or lack of prescribed maintenance are not covered. If service is required, contact the dealer from whom you purchased the instrument. If under warranty, report the model number, date of purchase, serial number and the nature of the failure. If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization number from the Customer Service department and then send it with shipping costs prepaid. When shipping any instrument, make sure it is properly packaged for complete protection.
CONNECT TO SCREW TYPE ELECTRODES
CONNECT TO THE BNC SOCKET OF THE METER

OTHER ACCESSORIES

HI 710005 HI 710006 HI 710012 HI 710013 HI 710014 HI 76404 Voltage adapter, 115 Vac / 12 Vdc, US plug Voltage adapter, 230 Vac / 12 Vdc, European plug Voltage adapter, 230 Vac / 12 Vdc, UK plug Voltage adapter, 230 Vac / 12 Vdc, S.Africa plug Voltage adapter, 230 Vac / 12 Vdc, Australian plug Electrode holder
All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner.
HI 7669/2W HI 8427 HI 931001 HI 98501
Temperature probe with 1 m (3.3') cable pH/ORP electrode simulator pH/ORP electrode simulator with LCD ChecktempC pocket-size thermometer (range: -50.0 to 150.0C)
Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice.
Recommendations for Users Before using this product, make sure that it is entirely suitable for the environment in which it is used. Operation of this instrument in residential areas could cause unacceptable interferences to radio and TV equipment, requiring the operator to take all necessary steps to correct interferences. The glass bulb at the end of the pH electrode is sensitive to electrostatic discharges. Avoid touching this glass bulb at all times. During operation, ESD wrist straps should be worn to avoid possible damage to the electrode by electrostatic discharges. Any variation introduced by the user to the supplied equipment may degrade the instrument's EMC performance. To avoid electrical shock, do not use this instrument when voltages at the measurement surface exceed 24 Vac or 60 Vdc. To avoid damages or burns, do not perform any measurement in microwave ovens.

SALES AND TECHNICALOF CONFORMITY CE DECLARATION SERVICE CONTACTS

Australia:

Tel. (03) 9769.0666 Fax (03) 9769.0699

China:

Tel. (10) 88570068 Fax (10) 88570060

Egypt:

Tel. & Fax (02) 2758.683

Germany:

Tel. (07851) 9129-0 Fax (07851) 9129-99

Greece:

Tel. (210) 823.5192 Fax (210) 884.0210

Indonesia:

Tel. (21) 4584.2941 Fax (21) 4584.2942

Japan:

Tel. (03) 3258.9565 Fax (03) 3258.9567

Korea:

Tel. (02) 2278.5147 Fax (02) 2264.1729

Malaysia:

Tel. (603) 5638.9940 Fax (603) 5638.9829

Singapore:

Tel. 6296.7118 Fax 6291.6906

South Africa:

Tel. (011) 615.6076 Fax (011) 615.8582

Taiwan:

Tel. 886.2.2739.3014 Fax 886.2.2739.2983

Thailand:

Tel. 66.2619.0708 Fax 66.2619.0061

MANPH211R-R1

United Kingdom:
Tel. (01525) 850.855 Fax (01525) 853.668
Tel. (401) 765.7500 Fax (401) 765.7575
For e-mail contacts and complete list of Sales and Technical offices, please see www.hannainst.com 24