Use of any other type of AC adaptor creates the risk of serious problems with and damage to the EA-200 and/or AC adaptor. Never use another type of AC adaptor. Note that any damage due to use of the wrong type of adaptor is not covered by your warranty. Make sure you turn off the EA-200 before connecting the AC adaptor. The AC adaptor may become warm if you use it for a long time. This is normal and does not indicate malfunction.
To connect the AC adaptor to the EA-200
1. Slide the [ON/OFF] switch to turn off the EA-200. 2. Plug the AC adaptor into the port on the lower left of the EA-200. 3. Plug the other end of the AC adaptor into a wall outlet. 4. Slide the [ON/OFF] switch to turn on the EA-200.

General Guide

Analog Channels 3 (Analog output for CH3 only) CH3 CH2 CH1
Key Functions and Indicator Lamps

Key Functions

To do this: Start a sampling operation from the ready state Stop an ongoing sampling operation Use Auto Setup (See Auto Setup on page 1-5.) Cancel the ready state Press this key: [START/STOP] [START/STOP] [SET UP] [SET UP]
Digital input/output port

SONIC Channel EA-2*1

Indicator Lamps
When this indicator lamp: Power (Green) Ready (Green) Sampling (Green) Error (Red) Batt (Red) Does this: Lights Lights Flashes Lights Lights Power is on. EA-200 is standing by for data (ready state). Sampling is in progress. An error occurred. It is time to replace the batteries. It means this:

Mo tion Sens o

Serial 232C (9-pin) port (for cross cable) Calculator 3-pin communication port (SUB port) 7
External microphone 2-pin port (for condenser microphone) External speaker 2-pin port Volume Indicator lamps
Ready Sampling Error Batt Power
While the Ready lamp is lit, press the [START/STOP] key to start sampling.
Calculator 3-pin communication port (MASTER port) Built-in speaker ON/OFF switch

SET UP START/STOP

To cancel the ready state, press the [SET UP] key. To interrupt a sampling operation, press the [START/STOP] key. For details about errors, see Status Request on page 1-5.

P button (rear side)*2

SET UP key AC adaptor port
START/STOP key Built-in microphone
* When using the EA-200 in combination with the optional Motion Sensor (EA-2), be sure to power the EA-200 using its bundled AC adaptor (AD-A60024).

Data communication cable

*2 If you start to experience serious operational problems with the EA-200, use a thin, pointed object to carefully press the P button on the back of the EA-200. Note, however, that pressing the P button deletes all data currently in EA-200 memory. Proper operation does not resume after you press the P button, remove its batteries, and then replace them correctly in accordance with the instructions on page 0-3 of the Users Guide.

Supported Calculator Models
Connection to a supported scientific calculator is essential if you want to get the most out of your EA-200. A connected Graphic Scientific Calculator sends commands that control the EA-200 during transfer of sampled data and other operations. Transferred data can be graphed on the calculator. For details about commands, see Using Commands on page 1-3, and Command Tables on page -1-1.

Supported Probes

A probe is a sensor that connects to the EA-200 for sampling temperature, light, and other data. The EA-200 comes with the three probes described below. Voltage Probe. Measures voltage in the range of 10V to +10V. CH3 measures in the range of 5V to +5V. Optical Probe. Measures luminance in the range of 100 to 999. Temperature Probe.. Measures temperature in the range of 20C to 130C.
ALGEBRA FX Series ALGEBRA FX 2.0 PLUS ALGEBRA FX 2.0 FX 1.0 PLUS FX 1.0 CFX-9850/fx-7400 Series CFX-9950GB PLUS CFX-9850GB PLUS CFX-9850Ga PLUS CFX-9850G PLUS CFX-9970G fx-9750G PLUS CFX-9950G CFX-9850G fx-7400G PLUS fx-7450G
Connecting a Probe to a Channel
A probe connects to an input/output port called a channel. The EA-200 has seven channels: three analog channels (CH1, CH2, CH3), one sonic channel (SONIC), one digital input/output channel (DIG I/O), a microphone channel, and a speaker channel. You can connect probes individually, or you can connect multiple probes for simultaneous sampling. You can use commands to configure the settings for the channel being used for sampling, to specify how sampled data should be handled, etc. CH1, CH2, CH3 These channels are for the probes (voltage, temperature, optical) that come bundled with the EA-200. SONIC This channel is for connection of an optional Motion Sensor (EA-2). DIG I/O This port is for input and output of an 8-bit binary signal in the range of 0V to 5V. This could be used, for example, to light an LED. Built-in Microphone The microphone can be used to sample sound. Built-in Speaker The speaker can be used to output sound samples.
Connecting the EA-200 to a Supported Calculator
Use the special data communication cable to connect the EA-200 to a supported Graphic Scientific Calculator model. (1) Turn off the EA-200 and the calculator. (2) Connect one end of the special data communication cable to the scientific calculator. (3) Connect the other end of the cable to the EA-200s MASTER port. Insert the plugs as far as they will go. If you experience problems when transferring data, check to make sure that both plugs are fully inserted. Be sure to read the user documentation that comes with the scientific calculator you are connecting.

Using Commands

When using the built-in microphone for sampling, position it so it is about two or three centimeters from the sound source.
If the graph shows that the sampled sound is exceeding the sampling range as shown below, either lower the volume of the sound source or move the microphone further away from the sound source.
Using the Built-in Speaker
To output sound recorded by the built-in microphone

Status Request

This function can be used to fetch the current status of the EA-200.

To use Status Request

{7} List 1_ _ Send (List 1)_ _ Receive (List 1)_ _ Line 1 Status 0: Standby (No Sample Data in EA-200) 1: Ready 2: Sampling 3: Standby (Sample Data in EA-200) Receives the status information and stores it in List 1. Line 2 Line 3 Line 4 Error Code Battery Condition OS Version = O: Normal 0 to 999 Version No. O: Error Integer: Command number < 450: Decimal Part: Parameter position low battery Example: 3.2 Second parameter of Command 3. Sampling interval value error Sends Command 7.
(3) Send Command 3 to configure measurement condition settings. {3, 0.00005, 120000} List 1_ _ Send (List 1)^ ^ 3 is the command number, 0.00005 is the sampling interval (50s), and 120000 is the number of samples. You can change sampling conditions by using different sampling interval and number of samples values, if you want.
At this time, the Ready lamp lights on the EA-200. Press the EA-200 [START/STOP] key to start sampling. When sampling is complete, press the calculators w key to restart the program. ^ (Disp command) causes processing to stop until you press the w key. (4) Send Command 0 to initialize the EA-200 setup. {0} List 1_ _ Send (List 1)_ _ Stores {0} to List 1. 0 is the command number. Sending List 1 executes Command 0.

Auto Setup

Auto Setup detects the Auto-ID of a probe, and configures applicable settings automatically. The three probes (voltage, temperature, optical) that come bundled with the EA-200 have Auto-IDs.*1

To use Auto Setup

1. Connect a probe to a channel. 2. Slide the [ON/OFF] switch to turn on power. This causes the Power lamp to light. 3. Press the [SET UP] key. This causes the Ready lamp to light.
(5) After sampling is complete, use Command 1 to configure speaker settings. {1,12, 5,10} List 1_ 1 is the command number, 12 specifies the speaker as the _ Send (List 1)_ channel, 5 is the number of loops, and 10 specifies output of _ values sampled by the microphone. (6) Re-configure the sampling condition settings. {3,0.00005,120000} List 1_ _ Send (List 1)^ ^ 3 is the command number, 0.00005 is the sampling interval (50s), and 120000 is the number of samples. You can change sampling conditions by using different sampling interval and number of samples values, if you want.

(7) Press [START/STOP] to output the sound recorded with the microphone.
*1 The optional Motion Sensor (EA-2) does not have an Auto-ID.
4. Press the EA-200 [START/STOP] key to start sampling. The Sampling lamp flashes as sampling is performed. 5. Press the [START/STOP] key again to stop sampling. 6. Connect the EA-200 to the calculator, and then use the Receive command to transfer the sampled data (see the Receive Data Command on page 1-3). Data is transferred in the following sequence: Record Time SONIC CH1 CH2 CH3. Any channel that is not being used is skipped automatically.

Example Operation

The example below shows how a teacher can use the EA-200 Group Link function to distribute a sampling program and sampled data. 1. Students are divided into multiple groups, and each group has its own EA-200. The teacher uses his or her EA-200 to distribute a sampling program to each of the group leaders. Teacher Calculator Teacher EA-200 Group Leader 1 Calculator

Group Link Function

A single EA-200 can be used to connect one MASTER calculator to up to seven other SUB calculators to distribute programs, data, etc.*1 Note, however, that you cannot have the following calculator models connected to the EA-200 at the same time.*2 ALGEBRA FX Series CFX-9850/fx-7400 Series*3
Group Leader 2 Calculator Group Leader 3 Calculator 2. Each group uses the EA-200 to perform sampling using the program that was distributed to the group leaders calculator from the teachers calculator. After sampling is complete, the EA-200 Group Link function is used to distribute the sampled data to the calculator of each group member. Group Leader Calculator
To perform a Group Link operation
1. Use a Link Cable (SB-62) to connect the calculator that contains the data you want to send to the MASTER port of the EA-200. 2. Use a Link Cable (SB-62) to connect the calculators to which you want to send the data to the SUB ports of the EA-200). 3. Slide the [ON/OFF] switch of the EA-200 to turn it on. 4. On all of the SUB calculators, use the LINK application to enter the Receiving Mode. 5. On the MASTER calculator, use the LINK application to transmit the data. 6. The data transfer operation is over when the message Complete appears on the displays of the MASTER calculator and all of the SUB calculators. Group EA-200 Group Member 1 Calculator Group Member 2 Calculator Group Member 3 Calculator

Important!

You can create your own sampling program while referring to the Program Library on page 2-16-1, or you can download a program at the CASIO Website: http://world.casio.com/edu_e/
*1 Backup data cannot be distributed. *2 See the Supported Calculator Models on page 1-2 for more information about compatibility between various calculator models. *3 fx-7400 Series calculators support Program and List data only.

Examples

Uniformly Accelerated Motion Period of Pendular Movement Conservation of Momentum Charles Law Polarization of Light Natural Frequency and Sound Column of Air Resonance and the Velocity of Sound Construction of the Musical Scale Direct Current and Transient Phenomena AC Circuit Dilute Solution Properties Exothermic Reaction Electromotive Force of a Battery Sunlight and Solar Cells Topographic Conditions and Climate

Program Library

Uniformly Accelerated Motion
This activity observes the movement of a cart down an incline and investigates uniformly acceleration motion caused by gravity.

Activity: Setup

Equipment
Cart Ramp Stand Protractor Distance Measurement Setup (EA-200, graphic scientific calculator, data communication cable, optional EA-2*1)

Theory

A cart placed on an inclined ramp starts to move straight down the ramp. This movement is due to the force of gravity acting on the cart to pull it down the incline and pulling it against the ramp. The distribution of these two forces depends on the inclination of the ramp. The acceleration of the cart is determined by the magnitude of the force that moves the cart. Movement represented by an acceleration value that does not change over time is called uniformly accelerated motion. The movement of the cart described above is uniformly accelerated motion. As shown below, the velocity of uniformly accelerated motion is proportional to time, and the distance traveled is proportional to the time squared. This means that if you observe the distance covered by the cart over a specific time, you can determine its acceleration.

u Prepare the Optical Measurement Setup. u Taking care not to allow the string to go slack, move the weight as shown in the illustration and then gently let it go. u After the weight swings back and forward a few times, start the measurement operation on the EA-200.
u Perform the following operation to prepare for light measurement using the optical probe. Using E-CON
mE-CONw1(SETUP)b(Wizard)w 1(CASIO)d(Light) 0.01w255w1(YES)
Using a Calculator Program Find the applicable program in the Program Library (P.2-16-1), input it into your calculator, and then run it.) u Determine the period from graphs of the measurement results obtained at each measurement position.
1 Weight Position of Equilibrium 2 Hand 3 Amplitude: 3cm
u Move the optical probe from position A to position B or C, and then repeat the measurement operation.
L : Light Intensity t(s) : Time T(s) : Period
1 Weight Position of Equilibrium 2 Flashlight 3 Weight Movement 4 Optical Probe 5 Distance Between A and B: 1cm 6 Distance Between A and C: 3cm

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u Find out how the period changes when you change the length of the pendulum. u Find out how the period changes when you change the mass of the weight. u Find out how the period changes when you change the size of the weight. u Find out how the period changes when you change the amplitude.
u Determine the period from the graph of measurement results, and compare this with the calculated value.
u Find out what happens when you use an iron or magnetic weight with a magnetic sheet under the weight. u Consider why the period changes under the conditions described above.

Conservation of Momentum

The purpose of this activity is to investigate the law of conservation of momentum through the collision of two carts.
Two carts of identical mass String Pulley with a bracket to secure it Velcro 500g weight Cushion Distance Measurement Setup (EA-200, graphic scientific calculator, data communication cable, optional EA-2*1)
Collisions can take on many different forms, and can involve automobiles, locomotives, shopping carts, or even two people. The force of the impact when the two objects collide depends not only on their velocities but also their respective masses (weight), and you can calculate the momentum of an object by multiplying its mass by its velocity. Despite the variables involved, one principle always holds true if external forces such as friction are ignored, the sum of the momenta of two objects prior to collision is the same as the sum of the momenta of the objects after collision. This is the principle known as the conservation of momentum. This principle is an excellent tool for understanding the dynamics of collisions. The following expresses conservation of momentum in the case of a stationary cart being struck by another cart, after which the two carts adhere to each other and continue in motion together.

1 Penlight 2 Polarizer for Reflected Light Measurement 3 Optical Probe for Reflected Light
L : Light Intensity t(s): Time
u Perform the following operation to measure Brewsters angle. u Find the applicable program (Light Multi Meter) in the Program Library (P.2-16-2), input it into your calculator, and then run it to measure light intensity.
4 Polarizer for Refracted Light Measurement 5 Optical Probe for Refracted Light
u Investigate changes in Brewsters angle using materials other than glass. u The 3D effect is possible because of the slight difference between how an object is viewed by the left and right eyes. Consider how 3D imaging technology uses the characteristics of light polarization to achieve its effects.
To obtain an accurate picture of changes in polarizer angle and light intensity, it is a good idea to graph light intensity at various angles.
Natural Frequency and Sound
This activity investigates sounds produced in accordance with the natural frequencies of objects we use in everyday life. It also studies the characteristics of frequencies.
Box String Bolts (2) Triangular Wood Blocks (2) Audio Measurement Setup (EA-200, graphic scientific calculator, data communication cable)
Hitting, striking, plucking, or otherwise disturbing just about any object will cause it to vibrate. Dropping a pencil or ruler to the floor, or plucking a banjo string will cause it to vibrate. The sound produced when you blow over the top of a bottle is the air inside of it vibrating. The vibration of an object tends to occur at a particular frequency or a particular set of frequencies, which is the natural frequency of the object. Though the strength of the strike, pluck, or other disturbance applied to an object affects the frequency of the sound produced, in most cases the sound produced is a louder version of the natural frequency. Generally, the sound produced by an object is the result of multiple natural frequency sound waves superimposed on each other. The expression below provides the natural frequency of a string that is fixed at both ends. In this case, all of the natural frequencies are integer multiples of f1, which is called the fundamental frequency. The fundamental frequency is the lowest possible frequency at which an object can vibrate freely.

Building a Monochord

u Use tape to affix the bolts at either end of the box, and stretch the string taut between them. u Insert a triangular wood block between the string and the box.
1 Box 2 Box Length: 50cm 3 Bolt 4 String 5 Block
u Insert two wood blocks between the string and box, and set the monochord on a table or desk. u Position the Audio Measurement Setup where it can pick up the sound from the monochord.
1 Desk 2 Monochord 3 EA-200

n S fn = 2L

fn (Hz) : String Natural Frequency (n = 1, 2, 3.) L (m) : String Length S (N) : String Tension (kg/m) : String Linear Density (per meter)
Measuring the Sound Frequency
u Position the two wood blocks so there is about 40cm between them, and then lightly pluck the center of the string to produce a sound. u Record the sound with the Audio Measurement Setup, perform FFT analysis, and view the frequency distribution.
1 Monochord 2 Desk 3 Distance Between 1 Waveform 2 Frequency 3 f 11
u Prepare the Audio Measurement Setup for recording. u Find the applicable program in the Program Library (P.2-16-2), input it into your calculator, and then run it. u Perform FFT analysis on the sound recorded when the blocks are 40cm apart, and study the frequency distribution. S
t(s) : Sound Volume : Time

Blocks: 40cm 4 Finger

Distribution N(counts) : Number of Counts 4 f 12 f (Hz) : Frequency
u Position the two wood blocks so there is about 20cm between them, and then lightly pluck the center of the string to produce a sound. u Record the sound on the Audio Measurement Setup, perform FFT analysis, and view the frequency distribution.
1 Monochord 2 Desk 3 Distance Between
u Perform FFT analysis on the sound recorded when the blocks are 20cm apart, and study the frequency distribution.
1 Waveform 2 Frequency 3 f 21

: Sound Volume : Time

Blocks: 20cm

4 Finger

Distribution N(counts) : Number of Counts 4 f 22 f (Hz) : Frequency
u Calculate values for f12/f11, f22/f21, f21/f11, and compare them. u Next, note the relationship with each of the above values with the value 2. u Try changing the distance between the blocks, the location where you pluck the string, and the strength of the pluck, and see how it affects the frequency.

: Time

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u Consider what type of combination would be required to keep voltage across all parts below 5V. u Consider combinations that satisfy conditions for resonance. u Consider what component combinations would satisfy the conditions of this activity (5V or less across each component, resonance circuit) for other AC frequencies. u Perform FFT analysis and compare the frequency of each component.
Make sure that the individual voltage value across the resistor, capacitor, and coil does not exceed 5V. Consequently, you should make sure that the power supply voltage for the combination shown here does not exceed 3V.

2-11-1

Dilute Solution Properties
This activity investigates boiling point elevation and freezing point depression of a dilute solution.
Stand Heater Reflux Condenser Desiccant Auto Stirrer Beaker Round Bottom Flask (2) Mixing Stick Ice Water Benzene Naphthalene Temperature Measurement Setup (EA-200, graphic scientific calculator, data communication cable, temperature probe)
Dissolving a small amount of a substance (solute) in a theoretically pure liquid (solvent) to create a dilute solution causes the boiling point of the dilute solution to become greater than and the freezing point to become less than that of the solvent. This is because the proportion of solvent molecules is reduced by the amount of solute molecules mixed in, which lowers the vapor pressure of the solvent and elevates the boiling point. At the same time, it also reduces the proportion of solvent molecules that congeal, which suppresses the freezing point. These changes are determined by the amount of solute molecules, and the type of solute does not matter, as long as it is non-volatile. Consequently, both boiling point elevation and freezing point depression are proportional to the solute molality, as shown in the expressions below.
Setting Up the Boiling Point Elevation Equipment
u Pour the benzene solution into the flask, and secure it in place as shown in the illustration.
1 Stand 2 Heater 3 Round Bottom Flask 4 Reflux Condenser 5 Desiccant 6 Naphthalene-Benzene

T1 = K1 m T2 = K2 m

T1(C) : T2(C) : K1(C kg/mol) : K2(C kg/mol) :

1 Reflux Condenser 2 Tap 3 Water Flow Direction 4 Open the tap.
u Display a graph of temperature change starting from the point that the solution is first cooled.
T(C) : Temperature t(s) : Time T2(C) : Solution Freezing Point
u For boiling point elevation, turn on the heater and use the Temperature Measurement Setup to measure the temperature. u For freezing point depression, turn on the auto stirrer and use the Temperature Measurement Setup to measure the temperature. u Use the measured changes in temperature to determine boiling point elevation and freezing point depression. u Compare the measured results with the results calculated from naphthalene molality.
u Consider how the molecular weight of naphthalene can be determined using the measurement results. u Consider why the cooling curve of freezing point depression is not clear. u Create another dilute solution using a different solute, and determine the boiling point elevation and the freezing point depression. u Create another dilute solution using a different solvent, and determine the boiling point elevation and the freezing point depression.
For freezing point depression, use the mixing stick to stir the flask contents.

2-12-1

Exothermic Reaction
This activity uses the neutralization of hydrochloric acid and sodium hydroxide to study heat that is given off or absorbed by chemical reactions.
Stand Auto Stirrer Beaker (3) Hydrochloric Acid (Solution) Sodium Hydroxide (Solid) Distilled Water Temperature Measurement Setup (EA-200, graphic scientific calculator, data communication cable, temperature probe)
A chemical reaction causes a change in the properties of matter, and always gives off or absorbs heat. The sum of the heat of reaction when a chemical reaction takes place depends solely on the condition of the matter at the time of the reaction, and is totally independent of the reaction pathway and the number of steps between the initial state and the final state. This is called Hesss law. The following illustrates the chemical reaction when sodium chloride (aq) is generated from sodium hydroxide (s) and hydrochloric acid (aq).
u Measure the mass of the hydrochloric acid (aq) and distilled water to be used in the activity. u Measure the amount of sodium hydroxide (s) required so the number of its moles is equal to that of the hydrochloric acid (aq). u Fix the probe in place at a point between the center of the beaker and the wall of the beaker, in a location where it does not strike the stirrers magnet, at a depth so it is sufficiently immersed in the solution.
1 Stand 2 Auto Stirrer 3 Beaker 4 Temperature Probe (CH1) 5 Solution 6 EA-200
NaOH(s) + aq = NaOH(aq) + 44.5kJ NaOH(aq) + HCl(aq) = NaCl(aq) + H2O + 56.4kJ NaOH(s) + HCl(aq) = NaCl(aq) + H2O + 100.9kJ

1 Reaction Path Reaction Path Energy 4 Solvent (Water)

s : solid aq : aqua

Here, Reaction Path 1 includes the heat of dissolution when sodium hydroxide (s) is dissolved in distilled water, and the heat of neutralization of sodium hydroxide (aq) and hydrochloric acid (aq). Reaction Path 2, on the other hand, consists of the heat of neutralization of sodium hydroxide (s) and hydrochloric acid (aq). All of this means that the total heat is the same, regardless of whether or not the pathway includes a process for dissolving the sodium hydroxide (s), as in Reaction Path 1.

2-12-2

Reaction Path 1 Measurement
u Turn on the auto stirrer and start a measurement operation with the calculator. u Little-by-little, add sodium hydroxide (s) to the distilled water, and observe how the temperature changes. u After all the sodium hydroxide (s) is dissolved and the temperature rise stabilizes, determine the heat of dissolution.
1 Beaker 2 Temperature Probe 3 Sodium Hydroxide (s) 4 Distilled Water 5 Temperature rise due
u Use the Temperature Measurement Setup to measure the temperature and then display it. u Find the applicable program in the Program Library (P.2-16-3), input it into your calculator, and then run it.

to heat of dissolution

u Turn on the auto stirrer and start a measurement operation with the calculator. u Little-by-little, add the hydrochloric acid (aq) to the sodium hydroxide (aq), and observe how the temperature changes. u After all the hydrochloric acid (aq) is added and the temperature rise stabilizes, determine the heat of neutralization. u Calculate the sum of heat by adding the heat of neutralization to the heat of dissolution.
1 Beaker 2 Temperature Probe 3 Hydrochloric Acid 4 Sodium Hydroxide (aq) 5 Temperature rise due
to heat of neutralization
Reaction Path 2 Measurement
u Turn on the auto stirrer and start a measurement operation with the calculator. u Little-by-little, add sodium hydroxide (s) to the hydrochloric acid (aq), and observe how the temperature changes. u After all the sodium hydroxide (s) is dissolved and the temperature rise stabilizes, determine the heat of neutralization. u Calculate the heat, and compare it with the total heat you calculated for Reaction Path 1.
1 Beaker 2 Temperature Probe 3 Sodium Hydroxide 4 Hydrochloric Acid (aq) 5 Temperature rise due
u Determine whether this activity verifies Hesss Law. If it does not, consider the reason why. u Compare the theoretical chemical reaction expression and the measurement results. If they do not match, consider the reason why. u Find out if Hesss Law holds true for other chemical reactions.

Command 3 - Sample and Trigger Setup
{ 3, Sample Interval, Number of Samples, Record Time, Trigger Source, Trigger Threshold, Trigger Edge, Clock Source } Sample Interval 0.00002 to 16000 (*0.1) Number of seconds Number of Samples 1 to 120000 (*100) Number of samples Record Time 0 *Off Absolute time recording Relative time recording
Trigger Souce or or or [START/STOP] key CH 1 CH 2 CH 3 DIG IN Clock DIG IN 8bit data Microphone
Trigger Threshold Sampled Values Corrected values when Command 4 0-255 (D7-D0) (*1) Sampled Values 1.5V
Trigger Edge 0 *Falling edge Rising edge Rising and falling edge
Clock Source *Timer (Sample interval) Same as Trigger Source
0 **Fallig edge Rising edge Rising and falling edge Falling edge Rising edge Difference with previous value is below Difference with previous value is above
Distance Unit depends on Command 1. (*0.05) Count Number (sec) 1 to 10 (*10)

Count down Command 8

Command 4 Conversion Equation Setup
{ 4, Equation Number, Equation Type, Number Format, Constants }
Equation Number *Clear All equations. Equation 1 (Channel 1) Equation 2 (Channel 2) Equation 3 (Channel 3)
Equation Type *12 *Clear equation selected by the equation number parameter. Polynomial K0 + K1X + K2X2 +.+ KnXn *1 Mixed polynomial KmXm +.+ K1X1 + KO + K1X +.+ KnXn *2 Power K0 X(K1) + K2 Modified power K0 K1X + K2 Logarithmic K0 + K1 In(X) Modified logarithmic K0 + K1 In(1 / X) Exponential K0e(K1X) + K2 Modified Exponential K0e(K1/X) + K2 Geometric K0X(K1X) + K2 Modified geometric K0X(K1/X) + K2 Reciprocal logarithmic 1 / {KO + K1 In(K2X)} + K3 Steinhart-Hart 1 / {KO + K1(In 1000X) + K2(In 1000X)3} + K3 Clear equation 4 Temperature used by distance conversion expression
Number Format *Standard Integer part (Decimal part cut off.)
Constants K0( ,K1,.,K9) *3,4 K4( ,., K1, K0, K1,., K5) *3,4

K0( , K1, K2, K3) *3,4

Equation 4 (SONIC channel)
Unit *4 C(Celsius) F (Fahrenheit) C (Celsius) K (kelvin) R (Rankin)
Temperature Temperature ( *20)
*2 Polynomial: Input constants in sequence, from n = 0 to 9. Mixed polynomial: Input constants in sequence from m = 4 to 1, and n = 0 to 5. Input of zero for constants can be skipped if all remaining constants are not used. *4 Input 0 for constants that are not used. When the conversion result of the conversion equation selected by Command 4 causes an overflow, the EA-200 sends a result of zero (0) to the calculator.
Command 5 - Data Range Setup
{ 5, Channel Select, Data Select, (FFT Samples,) Data Begin, Data End, Step, K } Channel Select *Current send channel Channel 1 Channel 2 Channel 3 SONIC channel DIG IN channel Recorded time data Microphone Data Select *11 Raw data d/dt d2/dt2 FFT-Real FFT-Imaginary Data Begin 1 to 120000 (*1) Data End 1 to 120000 * 0 : Last sample Step Data Range Steps 1: Data range number / K (*1) K (*255) FFT Samples 1 to 14 : Samples used (*6) 2n(216384)

Command 6 - System Setup

{ 6, Command, Auto Power Off Time }
Command 0 or Abort Sampling ( *0) Turns sound off Turns sound on APO (Auto Power Off) APO Time(sec)
Command 10 - Sensor Warmup
{ 10, Warmup Time (sec) }
Warmup Time (sec) 0.1 to 360 Warmup time (sec) ( *0.1) Auto None Normal warmup
Command 8 - Sampling Start
Command 11 Buzzer and LED Operation Commands
{ 11, Output Select, Length, Period }
Output Select *0 Buzzer Length (sec) Operating Time (sec) Period (sec) Period (sec)
Command 12 - Data Send Sequence

{ 12, Send Sequence }

Send Sequence *Non-real Time Format Real Time Format
Ready LED Sampling LED Error LED Batt LED
An error occurs when fraction data is sent. Send commands to the EA-200 in accordance with the command table contents. An error occurs when a parameter that does not exist in the command table is sent. The EA-200 uses six digits for internal calculations.
Appendix B Specifications
Model:. CASIO EA-200 Power Supply:. Four AA-size alkaline batteries (LR6 (AM3)) or AC adaptor (AD-A60024) Power Consumption:. 1.5W Battery Life:.. LR6 (AM3): Approximately 50 hours (when is left with power on) / Approximately one year (when is left with power off) Battery life is also affected by the type of probes that are connected, sampling program setup, etc. Auto Power Off:.. Approximately 30 minutes after last key operation. See page 0-4 for information on conditions under which Auto Power Off is disabled. Operating Temperature:. 0C to 40C (EA-200) The tip of the temperature probe can be used in temperatures ranging from 20C to 130C. Dimensions:.. 84.0(W) 246.0(D) 32.0(H) mm 3 5/16 (W) 911/16 (D) 11/4 (H) Weight:.. 350g (12.3 oz) including batteries Standard Accessories:. Optical Probe (CDAP-01); Temperature Probe (CDAP02); Voltage Probe (CDAP-03); four AA-size alkaline batteries (LR6 (AM3)); AC adaptor (AD-A60024); Data Communication Cable (SB-62); Soft Case; Users Guide

CASIO COMPUTER CO., LTD.

6-2, Hon-machi 1-chome Shibuya-ku, Tokyo 151-8543, Japan
Printed on recycled paper.
SA0208-000102B Printed in Japan A342984-008V01

Contents

Sampling... 2 Analog Sampling... 3 Memory... 3 Pulse Sampling... 4 Command Tables... 5 Command 1: Channel Settings.. 9 Command 3: Sampling and Trigger Settings.. 12 Command 4: Conversion Equation Settings.. 14 Command 5: Data Range Settings.. 15 Command 7: Status Check... 16 Command 10: Power Supply Setting... 17 RS-232C Communication... 17

EA-200

Technical Reference
http://world.casio.com/edu/

Sampling

1. Channel
Channel Name Number of Channels Analog Pulse Digital I/O Mic Analog Output CH13 SONIC DIG I/O Mic CH3 speaker 1 Details Voltage, resistance, pulse period Pulse interval, pulse period 8-bit input/output, 1-bit clock Recording (5.1V) CH3: output function 12-bit D/A (3V)
<Stand-along Sampling Method>
Auto Setup When the Setup key is pressed. Enters the sampling setup ready state. Supports bundled sensors (temperature, voltage, photo) only. <Setup Details> Auto-ID is read from CH1, CH2, CH3, and SONIC. (Mic and Digital I/O are not supported.) When no Auto-ID is available. CH1, CH2, CH3: Operation=10 (Voltage 1 to 5V) SONIC: Not used Furthest Interval among the used Auto-ID is used. Non real-time type

Channel Settings

2. Types of Sampling
Range Voltage Resistance Pulse period Pulse interval 05V 01V 1100 0600sec 1100msec Resolution Sampling Interval 1.2mV 4.9mV 0.868 sec 20 sec16000sec 8msec16000sec Notes 12-bit A/D Refer to Pulse Sampling on page 4.
Sampling Period Data Send Priority <Data Send Priority>
Channel Priority: Sampling time, SONIC, CH1, CH2, CH3 * Different from normal. Refer to Memory on page 3.

3. Sampling Methods

Configuring the Calculator for Sampling
Mode Enabled CH Trigger Source Communication Key Press Trigger Countdown Clock Source Timer Communication Key Press Trigger Communication while Sampling Fast CH1 or Mic sec Normal CH13, SONIC, DIG I Extended*1 CH13, SONIC, DIG I Period Fast Normal Frequency Output Output CH1 or SONIC Speaker CH3 or or CH3 DIG O
0.1msecNumber of Channels to 30016000sec 300sec *2

10msec sec 300sec

*1 Warm up is not supported during long-period sampling. *2 SONIC sampling triggered by CH1, CH2, or CH3 is not supported.

Analog Sampling

Channel Names: CH1, CH2, CH3 1. CH1, CH2, CH3 Connector Specifications Pin Number Vin 10V (CH3: Vin5V and 3Vout) GND Vres Auto-ID +5.3V DC Vin-low 05V

Memory

1. Sampling Time Data
<Absolute Time and Relative Time>

Absolute Time

( T1=0 ) T2 T4 T3

Time Axis

Relative Time
( T1=0 ) Trigger Source Sample Value 1
Clock Source 1 Sample Value 2
Clock Source 2 Sample Value 3
Clock Source 3 Sample Value 4
2. Types of Sampling 1 Voltage Two sampling ranges are shown below. 10V 1pin (CH3: 5V) 0 to 5V Pin Resistance Two sampling ranges are shown below. pin6: 1100k pin4: Auto-ID 3 Pulse period Two sampling ranges are shown below 10V 1pin (CH3: 5V) 0 to 5V Pin 6 For details, refer to Pulse Sampling on page 4. Pin 5 +5.3V Power Supply Supplied from 100 msec before Clock Source. Variable using power supply command (Command 10).

2. Number of Sample Data

Number of Sample Data: 120000 Number of Sampling Channels and Number of Sample Data
Number of Sampling Channels 5 Clock Source = External Trigger Clock Source = Timer Clock Source Maximum Number of Sample Data 17140
The maximum number of sample data when an external trigger is the clock source is calculated using the following formula: 120000([Number of Channels Used] + 1) The maximum number of sample data when a timer is the sampling trigger is calculated using the following formula: 120000[Number of Channels Used]

Sampling Interval

* The number of samples is 2^n when FFT Samples (n) is used.
100msec 5pin Power supplied during ready state.

3. Data Send Priority

1. Real-time Type (Selected using Command 12) Channel Priority: CH1, CH2, CH3, SONIC, DIG IN, sampling time

Pulse Sampling

Channel Name: SONIC (Pulse period sampling is also supported on CH1.) 1. SONIC Connector Specifications
Variable (1 data) Sends the data of the channel with highest priority among {CH1, CH2, CH3, SONIC, DIG IN, sampling time}. The data with the second highest and subsequent priorities is not sent. List (N line data) {CH1 data n, CH2 data n, CH3 data n, SONIC data n, DIG IN data n, sampling time n} (n: number of samples at the point that request is made) 2. Non Real-time Type (Selected using Command 12) Channel Priority: Sampling time, mic, CH1, CH2, CH3, SONIC, DIG IN Variable (1 data) First sends the oldest data on the highest priority channel. Next sends the next oldest data upon request. Next channel data is sent after all the data of the current channel is sent. When List type data is requested part way through The channels data is sent as a list. When Matrix type data is requested part way through Sent as Matrix type. List (N line data) Sends the data of the highest priority channel. {CH* data1, CH* data2, CH* data3, CH* data n} Next sends the next highest priority channels data upon request. * Sample data that is not configured is omitted. * After everything is sent, returns to the beginning when a data request comes in.

Pin Number 5 6

Pulse Period Vin 10V Not used Auto-ID +5.3V DC GND Vin-low 05V
Pulse Interval Sampling end pulse Sampling output pulse Auto-ID +5.3V DC GND Not used
2. Types of Sampling 1 Pulse Period Sampling Channel CH1, SONIC Supported Sampling Input Voltage 10V (1pin), 05V (6pin) Trigger Level (V) Pin 1: 10V 12-bit D/A (Resolution: 4.9mV) Pin 6: 0 to 5V 12-bit D/A (Resolution: 1.2mV) Range 0 to 600 sec (4 Sampling Intervals: A to D) Resolution 0.868sec Input Impedance 1M Rising/Falling switchable (4 methods: A to D)

1 or 6pin A B C D

When using the EA-2 Use the bundled AC adaptor. Minimum sampling interval is 0.02 sec. (When the subject is 3 meters or less away.)

Command Tables

Command 1 - Channel Setup
*: parameter value marked with asterisk are initial defaults. Channel 0 *3 Clear all channels Channel 1 Channel 2 Channel 3 Operation 0 Clear the selected channel. *1 Auto-ID 2 Voltage (10V) (for Voltage probe) 4 Resistance 5 Period 6 Frequency 7 Temperature (Celsius) 8 Temperature (Fahrenheit) 9 Light 10 Voltage (05V) 11 Absolute Time 0 Clear the SONIC channel. *1 Meters 2 Meters 3 Feet 5 Period 6 Frequency 11 Absolute Time 0 Clear the digital input channel. *1 Active Data String Output Loops 0 Clear the digital input channel. 1 to 32 Number of output data elements (*1) 0 Clear the Microphone. *1 Active Data String Output Loops 0 Clear the analog out or speaker. 1 to 65535 Number of output data elements (*1) { 1, Channel, Operation, Post-Processing, FFT Samples } Post-Processing *11 None d/dt d/dt, d2/dt2 FFT-Real FFT-Real, Imaginary 1 to 13 (*6) FFT Samples Samples used 2n (28192)

SONIC Channel

None d/dt d/dt, d2/dt2

DIG IN Port DIG OUT Port

Data string 0 to 255 Output data element value
Microphone Analog Out CH3 1pin 3Vout Speaker
*0 None 10 FFT-Real 11 FFT-Real, Imaginary Data Output Selection *0 Data string Channel 1 Channel 2 Channel 3 Microphone
1 to 13 (*6) Data string 1.5
Samples used 2n (28192) Output data element value
Channel = 1, 2, 3 or 4, Operation = 5, 6, 11 { 1, Channel, Operation, Pin No, Trigger Threshold, Trigger Edge } Pin No *2 1pin Vin (10V) Trigger Threshold 10 Set input voltage threshold value 10 to +10. Trigger Edge (Operation = 5, 6) *0 Rising edge to rising edge 1 Falling edge to falling edge 2 Rising edge to falling edge 3 Falling edge to rising edge Trigger Edge (Operation = 11) *Rising edge Falling edge Rising and falling edge

6pin Vin-low (05V)

0 to 5
Record Time for Operations 5, 6, and 11 must be 2, 1, and 1 respectively. Trigger Source for Channels 1, 2, 3, and 4 must be 2, 3, 4, and 12 respectively. Clock Source must be 10.
Command 3 - Sample and Trigger Setup
{ 3, Sampling Interval, Number of Samples, Record Time, Trigger Source, Trigger Threshold, Trigger Edge, Clock Source }
Sampling Interval 0.00002 to 16000 (*0.1) Number of seconds
Number of Samples 1 to 120000 (*100) Number of samples
Record Time 0 *Off Absolute time recording Relative time recording
Trigger Souce *or or or [START/STOP] key CH1 CH2 CH3 DIG IN Clock DIG IN 8-bit data Microphone
Trigger Threshold Sampled Values Corrected values when Command (D7D0) (*1) Sampled Values 1.5V
Trigger Edge 0 *Falling edge Rising edge Rising and falling edge
Clock Source *0 Timer (Sample interval) 10 Same as Trigger Source (1 to 5)
0 **Fallig edge Rising edge Rising and falling edge Falling edge Rising edge Difference with previous value is below Difference with previous value is above
Distance Unit depends on Command 1. (*0.05) Count Number (sec) 1 to 10 (*10)

Count down Command 8

Command 4 - Conversion Equation Setup
{ 4, Equation Number, Equation Type, Number Format, Constants }
Equation Number *Clear All equations. Equation 1 (Channel 1) Equation 2 (Channel 2) Equation 3 (Channel 3) Equation Type *12 *Clear equation selected by the equation number parameter. Polynomial K0+K1X+K2X2+.+KnXn *1 Mixed polynomial KmXm+.+K1X1+K0+K1X+.+KnXn *2 Power K0X(K1)+K2 Modified power K0K1(X)+K2 Logarithmic K0+K1 In(X) Modified logarithmic K0+K1 In(1/X) Exponential K0 e(K1X)+K2 Modified exponential K0 e(K1/X)+K2 Geometric K0 X(K1X)+K2 Modified geometric K0 X(K1/X)+K2 Reciprocal logarithmic [K0+K1 In(K2X)]1+K3 Steinhart-Hart model [K0+K1 (In 1000X)+K2(In 1000X)3]1+ K3 Clear equation 4. Temperature used by distance conversion expression Number Format *Standard Integer part (Decimal part cut off.) Constants 3,4 K0( , K1,., K9) * K4( ,., K1, K0, K1,., K5) *3,4

K0( , K1, K2, K3) *3,4

Equation 4 (SONIC channel)
Unit *4 C (Celsius) F (Fahrenheit) C (Celsius) K (kelvin) R (Rankin)

Temperature Temperature ( *20)
*2 Polynomial: Input constants in sequence, from n = 0 to 9. Mixed polynomial: Input constants in sequence from m = 4 to 1, and n = 0 to 5. Input of zero for constants can be skipped if all remaining constants are not used. *4 Input 0 for constants that are not used. When the conversion result of the conversion equation selected by Command 4 causes an overflow, the EA-200 sends a result of zero (0) to the calculator.
Command 5 - Data Range Setup
{ 5, Channel Select, Data Select, Data Begin, Data End, Step, K (, FFT Samples) }
Channel Select *Current send channel Channel 1 Channel 2 Channel 3 SONIC channel DIG IN channel Recorded time data Microphone Data Select *11 Raw data d/dt d2/dt2 FFT-Real FFT-Imaginary Data Begin 1 to 120000 (*1) Data End 1 to 120000 * 0: Last sample Step Data Range Steps 1: Data range number / K (*1) K (*255) FFT Samples 1 to 13: Samples used (*6) 2n(28192)

Command 6 - System Setup

{ 6, Command, Auto Power Off Time }
Command 0 or Abort Sampling ( *0) Turns sound off Turns sound on APO (Auto Power Off) APO Time (sec)
Command 11 - Buzzer and LED Operation Commands
{ 11, Output Select, Length, Period }
Output Select *0 Buzzer Ready LED Sampling LED Error LED Batt LED
Length (sec) Operating Time (sec)
Period (sec) Period (sec)
Command 8 - Sampling Start
An error occurs when fraction data is sent. Send commands to the EA-200 in accordance with the command table contents. An error occurs when a parameter that does not exist in the command table is sent. The EA-200 uses six digits for internal calculations.
Command 10 - Sensor Warmup
{ 10, Warmup Time (sec) }
Warmup Time (sec) 0.1 to Warmup time (sec) ( *0.1) Auto None Normal warmup
Command 12 - Data Send Sequence

{ 12, Send Sequence }

Send Sequence *Non-real Time Format Real Time Format
Command 1: Channel Settings
{ 1, Channel, Operation, Post-Processing }
SONIC (Channel = 4) Clear Command 1 data of SONIC channel. Auto-ID Perform sampling in automatically detected unit. Meter Feet Period sec Frequency Hz
6 Clear all Command 1 data. Specify CH1. Specify CH2. Specify CH3. Specify SONIC channel. Specify Digital In channel. Specify Digital Out channel.
11 Time sec (Relative time sampling from sampling start)

Digital I/O

Pin: Clock: 1 GND: 1 Signal: 8 (8-bit TTL 0 to 5V) Digital In (Channel = 5) 0 Clear Dig I channel information. 1 Active Read information of digital connector Pin 8. 0 to 255 Digital Out (Channel = 6) 0 Clear Dig O channel information. 1 to 32 Number of loops Number of outputs of list values
10 Specify mic. 11 Specify Analog Out. 12 Specify speaker.

2. Operation

Analog CH1, CH2, CH3 (Channel = 1, 2, 3) Clear Command 1 data of specified channel. Auto-ID Perform sampling using automatically recognized sensor. Perform 0 to 5V sampling when recognition is not possible. Voltage sampling 10V Resistance sampling 1100k Period sec Frequency Hz Temperature 29 to 130C Temperature 4 to 266F Light quantity 100 to 999
10 Voltage sampling 0 to 5V 11 Time sec (Relative time sampling from sampling start)
Output Example When the list is: 85(1010101), 34( 100010), 187(10111011), 204(11001100)
Clock D8 D7 D6 D5 D4 D3 D2 D204
<Output Trigger> Following receipt of Command 3, output starts as soon as a Trigger Source is generated. The following can be specified as a Trigger Source. 0: None, 1: [Start] key, 10: Countdown, Command 8 Output is interrupted when the Start/Stop key is pressed. <Analog Out Port> Output is from Pin 1 of CH3. Vout 3V (Iout maximum 100mA)
Analog, SONIC Sampling 3. Post-Processing
(Operation 14, 710) 0 None (no calculation) 1 d/dt 2 d2/dtFFT (Fast Fourier Transformation)-Real 11 FFT-Real, Imaginary Calculation Methods <<First derivative>> (dx/dt)n = (Xn+1 Xn1) / (2t) (dx/dt)1 = (X2 X1) / t (dx/dt)m = (Xm Xm1) / t xn: nth data t: Sampling period m: Maximum value of n <<Second derivative>> (d2x/dt2)n = (Xn+` Xn + Xn1) / t2 (d2x/dt2)1 = (X` X2 + X1) / t2 (d2x/dt2)m = (Xm 2 ` Xm+1 + Xm2) / t2 * First and second derivatives are supported only when timer is the sampling trigger.
Mic (Channel = 10) 0 Clear channel information. 1 Active Analog Out, speaker (Channel = 11, 12) 0 Clear channel information. 165535 Number of loops Select Data Select the data to be output by the sampling period. 0 List data 1 CH1 sampled values 2 CH2 sampled values 3 CH3 sampled values 10 Mic sampled values Step (Select Data 1, 2, 3, 10) Number of steps for output sampled data 1, 2, 4, 8, 16
<<FFT>> Frequency characteristics are calculated from sampled values and sampling period. The number of FFT target data items (2^n) is input to parameter n. 1-13 (2^13 = 8192) Calculation Timing When data is requested

6. Trigger Edge

Period, frequency sampling (Operation= 5, 6) Rising-Rising Falling-Falling Rising-Falling Falling-Rising
Time (Operation = 11) Sent Timing When 1 (d/dt) After sampled data is sent, linear data is sent when data is requested. When 2 (d/dt, d2/dt2) After sampled data is sent, linear data is sent when data is requested. In addition, quadratic data is sent when data is requested. When 10 and 11 (FFT) After sampled data is sent, FFT real number part data is sent when data is requested. In addition, FFT imaginary number part data is sent when data is requested. 2 Rising Falling Both (Rising and Falling)
Period Frequency Sampling
{ 1, Channel, Operation, Pin No, Trigger Threshold, Trigger Edge } (Operation 5, 6, 11) Compares 12-bit D/A thresh and sampled data, and measures the pulse interval. Time resolution is 0.868sec. Read either of two pins Set by sampled pin number 4 pulse interval types Set by trigger edge

4. Pin No

Specify the pin number for reading the period frequency. 2 1pin Vin 10V

10 6pin Vin-low 05V

5. Trigger Threshold
Threshold voltage value for comparison with sampled values.
Command 3: Sampling and Trigger Settings
12 SONIC Trigger Same as 27. 20 Countdown When [Start/Stop] key is pressed or when Command 8 is received, countdown is performed by beeping at 1-second intervals the number of times specified by count number, and then sampling starts. 1 Wait for Command 8 When 112 Upon receipt of Command 8, sampling starts regardless of specified trigger state.
1. Sampling Interval (sec)
0.000020.0001: Fast sampling 0.0001300: Normal sampling 30016000: Extended sampling This parameter is ignored when click edge is not timer.
Hard trigger (Trigger Source = 2, 3, 4, 12)

2. Number of Samples

1 to Limited only by available memory. Sampled with each data request Real-time (simultaneous) sampling

3. Record Time

0 None 1 Absolute time recording 2 Relative time recording

Trigger threshold

Hysteresis

4. Trigger Source

0 None Start sampling immediately upon receipt of Command 3. [Start/Stop] Start sampling when [Start/Stop] key is pressed. CH1 Trigger CH2 Trigger CH3 Trigger Hysteresis 10V (1pin) Temperature C Temperature F 0 to 5V (Pin 6)
No triggering when hysteresis part is not passed.
Approximately 0.27V Approximately 2C Approximately 3.6F Approximately 67.5mV
10 Microphone Trigger 11 SONIC Trigger Start sampling in accordance with Motion Sensor (EA-2) sampled data. Trigger monitor interval is in accordance with sampling interval.
Non-triggering Example (Trigger Edge = Rising)
SONIC Trigger (Trigger Source = 11) 0 Falling Sampling started when [Sample Value] < [Trigger Threshold] 1 Rising Sampling started when [Sample Value] > [Trigger Threshold] 2 Difference Falling Sampling started when [Sample Value] > [Trigger Threshold] 3 Difference Rising Sampling started when [Current Value] [Previous Value] > [Trigger Threshold]

Does not exceed hysteresis upper limit. At start of trigger detection, sampled value is greater than hysteresis lower limit.
To trigger at a target threshold, increase or decrease the hysteresis part with the edge settings to specify the threshold. However, make sure sampled value is outside of hysteresis range.

7. Clock Source

0 Timer Conforms to sampling interval.
Countdown (Trigger Source = 10) 110 Countdown (sec) * Do not press SETUP, START/STOP, or ON/OFF key during countdown. SONIC Trigger (Trigger Source = 11) Distance (meters)
10 Same as Trigger Source Sampled at same timing as Trigger Source. Timer when Trigger Source is 0, 10, 11.
Hard trigger (Trigger Source = 2, 3, 4, 12) 0 Falling Sampling started when [Sample Value] < [Trigger Threshold] 1 Rising Sampling started when [Sample Value] > [Trigger Threshold] 2 Both (Rising and Falling)
Command 4: Conversion Equation Settings
SONIC (Channel = 4) Clear conversion equation. Conversion equation temperature specification

1. Equation Number

0 Clear all Command 4 data. 1 Specify CH1. 2 Specify CH2. 3 Specify CH3. 4 Specify SONIC channel.
3. Number Format and Unit
Number Format Analog CH1, CH2, CH3
(Channel = 1, 2, 3) 0 Standard 10 Integer part only Unit SONIC (Channel = 4) Format K0+K1X+K2X ++KnX

2. Equation Type

Analog CH1, CH2, CH3 (Channel = 1, 2, 3) Equation Name 1 Polynomial 2 Mixed Polynomial Restrictions n = 0 to 9 m = 1 to 4 n = 0 to 5 m+n > 0 X0 X>0 K1 > 0 X>0 X>0 X0 X>0 X>0 K2X > 0

KmX ++K1X +K0+K1X++KnX

0 C (Celsius) 1 F (Fahrenheit) F = (9/5) C + C (Celsius) 3 K (Kelvin) 4 R (Rankin) R = 1.8 C + 491.67
3 Power 4 Modified power 5 Logarithmic 6 Modified logarithmic 7 Exponential 8 Modified exponential 9 Geometric 10 Modified geometric 12 Steinhart-Hart model
K0X(K1)+K2 K0K1(X)+K2 K0+K1 In(X) K0+K1 In(1/X) K0 e (K1X)+K2 K0 e (K1/X)+K2 K0 X (K1X)+K2 K0 X (K1/X)+K2 [K0+K1 (In 1000X)+K2 (In 1000X) ] +K3

4. Constants and Temperature
Constants Analog CH1, CH2, CH3 (Channel = 1, 2, 3) Polynomial: Input constants in sequence from Kn = 0 Mixed polynomial: Input constants in sequence from m= 4 to 1, n = 0 to 5. Temperature SONIC (Channel = 4) Sound velocity is calculated from this value and unit. Sound Velocity m/s = 331.5 + 0.6 C Default sonic velocity is 343 m/s.
11 Reciprocal logarithmic [K0+K1 In(K2X)]1+K3

X>0

Command 5: Data Range Settings
{ 5, Channel Select, Data Select, Data Begin, Data End, Step, K (, FFT Samples) } Cannot be used during sampling.

5. Step

1 Number of steps (Specifying 2 sends ever other data item). 1 Send using step equivalent to [Number of Sampled Data] [Specified Value K] (rounded up).

1. Channel Select

6 Highest priority data Specify CH1. Specify CH2. Specify CH3. Specify SONIC channel. Specify Digital In Specify recorded time data.

FFT Samples

1 to 13 FFT calculation number of samples 2^n * This parameter is ignored when Data Select is not FFT.
10 Specify mic. Send sequence of the specified channels sampled data takes priority.

2. Data Select

Raw data d/dt d2/dt2 A/D value
10 FFT (real number part) 11 FFT (imaginary number part) Send sequence of the specified data takes priority. For calculation method and other information, see 3. Post-Processing on page 10.

3. Data Begin

1120000 Sends data specified by number.

4. Data End

Last sample Sends from data start number up to number of data specified by this number. When 0, sends up to end of data.

Command 7: Status Check

{7} After Command 7 is received, this function sends EA-200 status information upon a data request from the calculator. Status Request
Line 1 Basic Information Status 0: Standby (No Sample Data in EA-200) 1: Ready 2: Sampling 3: Standby (Sample Data in EA-200) = 0: Normal 0: Error Integer: Command number Decimal Part: Parameter position Example: 3.2 Command 3 is the second parameter. Sampling interval value error 0 to 999 Line 39 : : : Channel 2 Setup Post-Processing Not used Not used Sampling Range Maximum Value Sampling Range Minimum Value Equation Number Number Format Number of Constants Constants K0 : Constants K9 Operation Pin No Post-Processing Not used Not used Sampling Range Maximum Value Sampling Range Minimum Value Equation Number Number Format Number of Constants Constants K0 : Constants K9 Operation Pin No Post-Processing Trigger Edge Trigger Threshold Equation Number Number Format Number of Constants SONIC filter Constants Line Channel Analog Out or Speaker Setup Data String Output Loops CH3 or Speaker Data Output Selection Number of Steps 1,2,4,8,16 Loop Counter Number of Data String Sampling Interval (sec) Number of Samples Record Time Clock Source Trigger Source Trigger Edge Trigger Threshold

Error Code

Sample and Trigger Setup

Channel 3 Setup

Not used

Battery Condition

Auto-ID
9 Channel 1 Setup : Channel 2 Setup 30
< 450: low battery Version No. CHto 1023 CH2 Calculation Method: CH3 (See circuit diagram) SONIC 1023(bit)R(R+10(k)) R:Auto-ID(k) Operation Pin No Post-Processing Trigger Edge Trigger Threshold Sampling Range Maximum Value Sampling Range Minimum Value Equation Number Number Format Number of Constants Constants K0 : Constants K9 Operation Pin No
Last error code: 0 = no errors An error causes a 3-digit error code to appear on the display. The first digit indicates the command number, while the remaining two digits indicate the parameter where the error occurred (i.e. first parameter is indicated by 01, second indicated by 02, and so on). Auto-ID resistance value () for CH1, CH2, CH3, and SONIC A reading in the vicinity of 999 k indicates that the applicable channel is open. List of all active channels (Variable) Circuit Diagram

Channel SONIC Setup

10-bit A/D Converter Auto-ID
Channel DIG IN Setup 89 Channel DIG 90 OUT Setup 91
Operation Data String Output Loops Loop Counter Number of Data String
Command 10: Power Supply Setting
{ 10, Warmup Time (sec) } Supply starts after receipt of Command 10 when supply time is not zero. If a sampling Trigger Source is generated before supply time is reached, supply time takes priority and sampling starts after it is reached. When parameter is 1, however, sampling starts as soon as sampling Trigger Source is generated.

RS-232C Communication

(1) RS-232C cross cable (2) Start bit : 1 bit (3) Stop bit : 2 bits (4) Baud rate : 38400 bps. (5) Parity bit : none. (6) The communication system shall be half duplex system without Xon/off control. (7) Frequency deviation should be kept within 1.5%. Send38K Calculator / PC EA-200
Supply time (sec) of 5.3V from Pin 5 to sensor Decimal part ignored. Corresponds to sensor information supply time. Corresponds to sensor information supply time. Sampling Trigger Source takes priority over supply time. Following receipt of command, power is supplied continuously to the sensor. However, the default setting for extended sampling is 100 msec.

Sampling trigger takes priority over supply time. Default is 100 msec. (See Analog Sampling on page 3.)
015 ... Code A... Header1 ... Code B... Data1 ... Code B... 015 ... Code A... Header2 ... Code B... Data2 ... Code B... : : :... 015 ... Code A... HeaderN ... Code B... DataN ... Code B
Code A 005 : Retry 013 : OK 022 : Error
Code B 005 : Retry 006 : OK 022 : Error
Receive38K Calculator / PC EA-200
Packet size (Hex, 2byte) max : 1024 byte *Without ':' and Checksum Area (Char, 1byte) A S M E Receive38K Request Header 15 byte : R Type Form All FFh (10byte) Check sum All Start Middle End
015 ... Code A... Request Header ... Header... Code B ... Packet1... Code B ... Packet2... :... Code B ... PacketN... Code B Send38K Header 15 byte Send38k: Type=A

Type A ASCII

Form (Char, 1byte) V L Packet : N Type Form Line Offset Check Packet size 0FF Area sum Type: A (Ascii) Check sum Variable List
Type (Char, 1byte) A ASCII
: ASCII Number 1 , ASCII Number 2 , ASCII Number N
Form (Char, 1byte) V L Variable List Big endian)

Line (Hex, 2byte

00001~ *Variable:00001 Offset (Hex, 4byte 00001

Big endian)

Checksum (1 byte) Checksum is added to the end of every returned header data proper. Checksum is the code (hexadecimal number) to check if data transfer is successful. The method to calculate the code is as follows: 1 Except the star code, add the data code to send (hexadecimal number) one by one byte. 2 As a result, one byte of the code that excludes the overflowed digit is set to SUM. 3 Calculate the complementary number for 2 of SUM. The answer is used as the checksum code. The specific example is shown below. Data (Example) : Middle code 3 X 6 EOF SUM FF 43 Hexadecimal number
31 +32 +33 +39 +34 +35 +36 +FF 2BD =SUM
Calculate the complementary number for 2 of SUM. The complementary number for 2 of &HBD (=10111101) is &H43 (=01000011). Therefore, put &H43 in the checksum.

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