Solid Flowmeters

Flowguides
Milltronics ILE Sensing Heads

Overview

Milltronics ILE-37 and ILE-61 Sensing Heads are out-of-the-process sensing elements for series E, V, and A solids flowmeters.

Benefits

Easy installation with modular assembly 1% accuracy (or better) with high repeatability Totally enclosed, dust-tight, flow metering of bulk solids Sensing mechanism is outside the process, protected from contamination No zero drift, due to unique sensing mechanism Low maintenance; only the sensing plate is in the process No restriction of product flow

Application

Milltronics ILE-37 and ILE-61 Sensing Heads are used in applications such as product ratioing, batch load-out, and process feed rate control, the ILE series of sensing heads has been fieldproven in thousands of applications with some units providing over a quarter century of reliable performance. The ILE sensing heads use only the horizontal force created by impact of product upon the sensing plate and then apply the horizontal deflection to a highly reliable Linear Variable Differential Transformer (LVDT). Friction-less pivots exclude the vertical force from the sensing process and the LVDT travel range is controlled by a coil spring selected for the specified full-scale flow rate. A viscous fluid damper provides mechanical damping in the event of pulsating flows. The LVDT converts the horizontal movement, proportional to the impact forces into an electrical signal, which is converted by the integrator to time-based flow rate indication and totalling. This method of sensing material flow has been proven best in thousands of applications all over the world.

Siemens WT 10 2009

Technical specifications
ILE-37 Mode of operation Measuring principle Typical application Flow input Maximum particle size Minimum flow rate Maximum flow rate Measuring accuracy Accuracy1) Repeatability Specified range Medium conditions Ambient temperature without internally mounted LVDT card with optional internally mounted LVDT card Maximum product temperature Design Options -40. +60 C (-40. +140 F) -40. +50 C (-40. +122 F) +232 C (+450 F) -40. +60 C (-40. +140 F) -40. +50 C (-40. +122 F) +232 C (+450 F) 1% or better of full scale, higher accuracy with linearizing features offered by integrators 0.2% 33. 100% 13 mm (0.5) 0. 0.2 t/h (0. 0.2 STPH) 0. 40 t/h (0. 44 STPH) 25 mm (1) 0. 20 t/h (0. 22 STPH) 0. 300 t/h (0. 330 STPH) Deflection measurement using LVDT (linear variable differential transformer) For use in all E,V, and A Series flowmeters ILE-61
Aluminum body, fiberglass cover, 304L (1.4306) stainless steel sensing plate CSA certified for Class I, Groups C and D; Class II Groups E, F and G; Class III hazardous areas Epoxy paint coating of external aluminum casting surfaces High temperature, to +400 C (+750 F) product temperature Sensing Plate 316L (1.4401) stainless steel sensing plate construction Abrasion-resistant and non-stick sensing plate coating/liners Internally mounted LVDT Conditioner Card for use with SF500 integrator Externally mounted LVDT Conditioner Card in NEMA 4 (IP65) enclosure for use with Milltronics SF500 or SIWAREX FTC integrator when sensing head is mounted in hazardous area or with high ambient temperatures CE, C-TICK CE, C-TICK

Approvals

Accuracy subject to: On factory approved installations the flowmeter systems totalilzed weight will be within the specified accuracy when compared to a known weighed material test sample. The test rate must be within the specified range of the design capacity and held constant for the duration of the test. The minimum material test sample must be equivalent to a sample obtained at the test flow rate for at least ten minutes running time.

Sensing heads

Selection and Ordering data
Order No. C) 7MH7110Milltronics ILE-37 Sensing Head Out-of-the-process sensing element for E-40, V-40, and A-40 solids flowmeters. A flowguide, sensing plate and integrator are required to complete the system. Order flowguide, sensing plate and integrator separately. Mounting Base Side Base, explosion proof, CSA Class I Groups C and D; Class II Groups E, F and G Side, explosion proof, CSA Class I Groups C and D; Class II Groups E, F and G Note: Externally mounted LVDT Conditioner in NEMA 4 enclosure required for use with SF500 or Siwarex FTC and mounting option 3 and 4. See optional equipment. Range (Range spring size/leaf spring thickness/ viscosity of damping fluid) C2/A2/1000 C3/A2/1000 C4/A2/1000 C5/A2/1000 C6/A2/1000 C7/A2/1000 C8/A2/3000 C9/A2/3000 C10/A2/3000 C11/A3/5000 C12/A3/5000 C13/A3/5000 C14/A3/5000 C0/A2/500 C0/A3/500 C10/A3/3000 Gasketing Silicone Silicone, light duty PTFE Coating (process side only) None, standard aluminum Epoxy - white/aluminum, external castings only Sensing head mounted LVDT conditioner Not required1) Required for use with SF500 or SIWAREX FTC integrator2)

Further designs Please add "-Z" to Order No. and specify Order code(s). Stainless Steel tag [69 x 38 mm (2.7 x 1.5")], Measuring-point number / identification (max 16 characters), specify in plain text. Acceptance test certificate: Manufacturer's test certificate M to DIN 55350, Part 18 and ISO 9000 Instruction manual English German French

Order No. Order Code

C) 7ML1998-5CW01 C) 7ML1998-1CW31 C) 7ML1998-5CW11
Solids flowmeter Application Guidelines, English C) 7ML1998-5GK01 Solids flowmeter Application Guidelines, German C) 7ML1998-5GK31 Note: The instruction manual should be ordered as a separate item on the order. This device is shipped with the Siemens Milltronics manual CD containing the complete instruction manual library. Calibration hanger weights 20 g (0.04 lb) 50 g (0.1 lb) 100 g (0.2 lb) 200 g (0.4 lb) 500 g (1.1 lb) 1000 g (2.2 lb) 2000 g (4.4 lb) 5000 g (11 lb)
C) 7MH7724-1AC C) 7MH7724-1AD C) 7MH7724-1AE C) 7MH7724-1AF C) 7MH7724-1AG C) 7MH7724-1AH C) 7MH7724-1AJ C) 7MH7724-1AK
A B C D E F G H J K L M N P Q R A B E 0 1
Spare Parts C) 7MH7723-1AJ LDVT conditioner in NEMA 4 enclosure (to interface SF500 or Siwarex FTC and LVDT sensor) C) 7MH7723-1DN Silicone inner diaphragm Silicone outer diaphragm 7MH7723-1DP C) 7MH7723-1AL PTFE inner diaphragm PTFE outer diaphragm LVDT transformer and core, standard spare Encapsulated LVDT replacement kit LVDT transformer and core, standard spare Damping fluid, 1000 CS, 1 lb bottle Damping fluid, 3000 CS, 1 lb bottle Damping fluid, 5000 CS, 1 lb bottle Range spring assembly, C2 Range spring assembly, C3 Range spring assembly, C4 Range spring assembly, C5 Range spring assembly, C6 Range spring assembly, C7 Range spring assembly, C8 Range spring assembly, C9 Range spring assembly, C10 Range spring assembly, C11 Range spring assembly, C12 Range spring assembly, C13 Range spring assembly, C14 Leaf spring, A2, kit Leaf spring, A3, kit Circuit card, LVDT, internal mount ILE-37 replacement O-ring kit
C) Subject to export regulations AL: N, ECCN: EAR99

C) 7MH7723-1AM

7MH7723-1DS

C) 7MH7723-1DE

C) 7MH7723-1EU C) 7MH7723-1EV C) 7MH7723-1EW
7MH7723-1EX 7MH7723-1EY 7MH7723-1FA 7MH7723-1FB 7MH7723-1FC 7MH7723-1FD 7MH7723-1FE 7MH7723-1FF 7MH7723-1FG 7MH7723-1FH 7MH7723-1FJ 7MH7723-1FK 7MH7723-1FL C) 7MH7723-1BN

C) 7MH7723-1BP C) 7MH7723-1ET
For use with Compu Series integrators or when externally mounted LVDT conditioner required. See Note under Mounting. Applicable for mounting options 0 and 1 only.

7MH7723-1DC

Order No. C) 7MH7112Milltronics ILE-61 Sensing Head Out-of-the-process sensing element for use with E-300, A-300 and V-300 flowmeters. A flowguide, sensing plate and integrator are required to complete the system. Order flowguide, sensing plate and integrator separately. Classification Non-hazardous Hazardous, CSA Class I, Groups C and D; Class II, Groups E, F and G Note: Externally mounted LVDT conditioner in NEMA 4 enclosure required for use with SF500 or Siwarex FTC and classification option 2. See Calibration Weights. Range (Range spring size/viscosity of damping fluid) D1/1000 Position 1 D1/1000 Position 2 D1/1000 Position 3 D2/1000 Position 1 D2/1000 Position 2 D2/1000 Position 3 D3/3000 Position 1 D3/3000 Position 2 D3/3000 Position 3 D4/5000 Position 1 D4/5000 Position 2 D4/5000 Position 3 D5/5000 Position 1 D5/5000 Position 2 D5/5000 Position 3 Gasketing Silicone PTFE Other gasketing available upon request. Coating (process side only) None, standard aluminum Epoxy - white/aluminum, external castings only Other coatings available upon request. Sensing head mounted LVDT conditioner Not required1) Required for use with SF500 or Siwarex FTC integrator2)
Further designs Please add "-Z" to Order No. and specify Order code(s). Stainless Steel tag [69 x 38 mm (2.7 x 1.5")], Measuring-point number / identification (max 16 characters), specify in plain text. Acceptance test certificate: Manufacturer's test certificate M to DIN 55350, Part 18 and ISO 9000 Instruction manual English German Note: Instruction Manual should be ordered as a separate item on the order. This device is shipped with the Siemens Milltronics manual CD containing the complete instruction manual library. Calibration hanger weights 20 g (0.04 lb) 50 g (0.1 lb) 100 g (0.2 lb) 200 g (0.4 lb) 500 g (1.1 lb) 1000 g (2.2 lb) 2000 g (4.4 lb) 5000 g (11 lb)
C) 7ML1998-5CX01 C) 7ML1998-1CX31
A B C D E F G H J K L M N P Q A D
Spare Parts LVDT conditioner in NEMA 4 enclosure (to interface SF500 and LVDT sensor) Silicone inner diaphragm Silicone outer diaphragm C) PTFE inner diaphragm PTFE outer diaphragm LVDT transformer and core, standard spare ILE-61 replacement O-ring kit Encapsulated LVDT replacement kit Damping fluid, 1000 CS, 1 lb bottle Damping fluid, 3000 CS, 1 lb bottle Damping fluid, 5000 CS, 1 lb bottle Range spring assembly, D1 Range spring assembly, D2 Range spring assembly, D3 Range spring assembly, D4 Range spring assembly, D5 Leaf spring kit, 4 required Circuit card, LVDT, internal mount ILE-61 replacement o-ring kit ILE-61, Taper Pin, spare
7MH7723-1AJ 7MH7723-1DQ 7MH7723-1DR 7MH7723-1BA 7MH7723-1DS 7MH7723-1DD

C) 7MH7723-1BB

C) 7MH7723-1DE C) 7MH7723-1EU C) 7MH7723-1EV C) 7MH7723-1EW C) 7MH7723-1FM C) 7MH7723-1FN C) 7MH7723-1FP C) 7MH7723-1FQ C) 7MH7723-1GJ C) 7MH7723-1BQ C) 7MH7723-1ET
For use with Compu Series integrators or when externally mounted LVDT conditioner required. See Note under Classification. Available with classification option 1 only.

7MH7723-1DD 7MH7723-1GD

Dimensional drawings

ILE-37 Sensing Head

outer gasket conduit entry NPT (internal) fiberglass cover see note mm (0.31) dia., 18 bolts on 360 mm (14.17) B.C.D as required

280 mm (11)

260 mm (10.25)

385 mm (15.12)

256 mm (10.06)
sensing plate 180 mm (7.09)

50 mm (1.97)

90 mm (3.54) 290 mm (11.5)
70 mm (2.76) 30 mm (1.18)
support plate (by customer) 10 mm (0.38) dia. (4 levelling rods)

ILE-61 Sensing Head

outer gasket conduit entry NPT (internal) fiberglass cover
see note 1 as required 40 mm (1.57)
380 mm (14.96) 8 mm (0.31) dia., 18 bolts on 460 mm (18.11) B.C.D.
560 mm (22.05) 318 mm (12.52)
490 mm (19.29) 340 mm (13.34)
sensing plate 60 mm (2.36) 300 mm (11.81) 420 mm (16.54) 70 mm (2.76) support plate (by customer) 16 mm (0.63) dia. (4 levelling rods) 500 mm (19.64) 560 mm (22.05)

Notes:

1. Refer to flowmeter drawing for sensing head mounting hole to flowguide centerline dimension. 2. Sensing head support plate should be rigid and independent of flowmeter housing. 3. Ensure outer gasket seals dust tight to flowmeter housing wall.
ILE sensing head dimensions