Mantracourt ICA1H User Manual Download Page 32

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Mantracourt Electronics Limited

– ICA User Manual

Document Title:

ICA User Manual

Applies To:

ICA Product Range

Part Number:

517-936

Issue Number:

01.00

Dated:

January 2018

In the interests of continued product development, Mantracourt Electronics Limited
reserves the right to alter product specifications without prior notice.

www.mantracourt.com

Summary of Contents for ICA1H

Page 1: ...ICA User Manual ICA ICA Embedded Strain Gauge Analogue Amplifiers...

Page 2: ...nt Resistance Formula ICA4 and ICA5 9 Table 2 1 The ICA H S Cable Data 10 Chapter 3 Calculating Offset and Gain Resistor Values 11 Calculating the offset resistor values 11 Calculating the gain resist...

Page 3: ...5 mV V and greater than 10 mV V are possible As supplied they are optimised to 2 5 mV V This range covers most but not all strain gauges Sensitivity adjustment SPAN is achieved by a combination of ch...

Page 4: ...ure and protected Figure 2 1 Dimensions The module is designed to fit in the strain gauge pocket Use the 2 1mm hole to secure the unit The mounting hole will accept an M2 screw or American equivalent...

Page 5: ...r the ICA1H ICA2H The strain gauge cable should be attached to the solder pads as illustrated For most applications 3 wire un shielded field wiring is quite adequate For best EMC performance use the c...

Page 6: ...e cable should be attached to the solder pads as illustrated For most applications 3 wire un shielded connections for field wiring is quite adequate For best EMC performance use the connections shown...

Page 7: ...onitor connected to the loop see the Output Shunt Resistance Formula at the end of this chapter Figure 2 7 Connection Details for the ICA4H Source mode Figure 2 8 Connection Details for the ICA4H Sink...

Page 8: ...7 The ICA4H can be used with three wire cabling in both sink and source mode The only difference between the two modes is whether the common end of the load is connected to the positive of the PSU si...

Page 9: ...ower signal level requires more gain from the ICA5 to compensate leading to a degradation in performance with regards to temperature stability and noise performance Impedances greater than 1000 ohms a...

Page 10: ...luding the wiring resistance for low supply voltage operation of the ICA4H and ICA5 Alternatively by transposing the formula the minimum supply voltage for a given shunt resistance can be determined I...

Page 11: ...K Farnell 585 646 Individually shielded twisted multi pair cable 7 0 25 mm 3 pair Tinned copper drain Individually shielded in polyester tape Diameter 8 1 mm Capacitance m core to core 98 pF core to s...

Page 12: ...in resistor values The ICA range of strain gauge amplifiers are supplied un calibrated but optimised for a sensitivity of 2 5 mV V To accommodate other sensitivities the gain resistor Rgain shown in t...

Page 13: ...1 40000 37 2 1 1105 Use preferred value 1k1 Example 3 ICA3H no offset 2 5 mV V required sensitivity at 5 V output Gain constant Required output Maximum output 372 2 5 5 10 74 5 Resistor constant 1 40...

Page 14: ...s the sensitivity of the load cell in mV V Vexc is the excitation voltage in volts and Z is the load cell impedance in ohms e g For a 2 5 mV V 1000 ohm load cell R2 222 17 k ohms use 220 k nearest E24...

Page 15: ...l 14 Offset Resistor R1 vs Load Cell Impedance The following table gives the value of R1 for various load cell impedances and 2 FS and 4 FS trim Load Cell Impedance 2 FS 4 FS 350 Ohms 30k n a 700 Ohms...

Page 16: ...Details for Calibration 1 Apply the known low calibration conditions weight force or mV V This may be zero if required and using the Z potentiometer Zero set the output to the relevant low level depe...

Page 17: ...ould be high and fixed a Check the sensor is connected typically reading 350 ohm across output with the power off b Check the Excitation voltage is at 5 V dc for the ICA1 4H and 6H see Table 3 6 for I...

Page 18: ...a If the adjustment cannot reach the maximum output desired then check the tare is not too high b If the potentiometer does not alter the output the unit must be repaired remove from service c It is...

Page 19: ...overdue accounts and that a strict interpretation of our conditions of trading invalidates warranty claims where late payment has occurred Please refer to the RMA Form Return Material Authorization co...

Page 20: ...dentified as SPAN It relates to the proportional output to the sensor input Calibration of the ICA is determined by setting the Gain Span and Offset Zero The amount of amplification used in an electri...

Page 21: ...force exerted on it be it pressure torque or load The ICA is designed to convert this change in the resistance of the Strain Gauge to a proportional electrical signal Strain Gauge Amplifier The ICA is...

Page 22: ...tal current 22mA Measurement Parameter Minimum Typical Maximum Units Notes Bridge Excitation 4 90 5 5 10 volts Bridge Impedance 350 1000 5000 ohms Bridge Sensitivity 0 5 2 5 50 mV V Note 1 Output load...

Page 23: ...surement Parameter Minimum Typical Maximum Units Notes Bridge Excitation 4 90 5 5 10 volts Bridge Impedance 350 1000 5000 ohms Bridge Sensitivity 0 5 2 5 50 mV V Note 1 Output load 5000 ohms Bandwidth...

Page 24: ...ent Parameter Minimum Typical Maximum Units Notes Bridge Excitation 4 90 5 5 10 volts Bridge Impedance 350 1000 5000 ohms Bridge Sensitivity 0 5 2 5 50 mV V Note 1 Output load 5000 ohms Bandwidth DC 1...

Page 25: ...rement Parameter Minimum Typical Maximum Units Notes Bridge Excitation 4 90 5 5 10 volts Bridge Impedance 350 1000 5000 ohms Bridge Sensitivity 0 5 2 5 150 mV V Note 1 Output load 900 ohms Note 2 Band...

Page 26: ...stment 8 FR Linearity 0 02 FR Temperature stability Zero Temperature Stability 0 001 0 005 FR C At 2 5 mV V Span Temperature Stability 0 007 0 014 FR C At 2 5 mV V FR Full Range 16 mA Note 1 1000 ohm...

Page 27: ...1000 Hz Zero adjustment 2 FR Note 4 Span adjustment 8 FR Linearity 0 02 FR Temperature stability Zero Temperature Stability 0 001 0 005 FR C At 2 5 mV V Span Temperature Stability 0 007 0 014 FR C At...

Page 28: ...ny warm up time Note 2 Not including excitation current e g when connected to a 350 ohm load cell excitation current 5 350 14 mA Total current 22 mA Measurement FR Full Range 10 V Note 1 Set by calibr...

Page 29: ...nformity with the following relevant Union harmonisation legislation LVD directive 2014 35 EU EMC directive 2014 30 EU RoHS directive 2011 65 EU Based on the following harmonised standards EN 61326 1...

Page 30: ...Mantracourt Electronics Limited ICA User Manual 29...

Page 31: ...Mantracourt Electronics Limited ICA User Manual 30...

Page 32: ...Manual Applies To ICA Product Range Part Number 517 936 Issue Number 01 00 Dated 19th January 2018 In the interests of continued product development Mantracourt Electronics Limited reserves the right...

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