Miniature Strain Gauge Signal Conditioner, Converts Load Cell to 4-20mA & 0-10V (ICA S & H)
- Strain gauge conditioner and load cell amplifier
- Miniature PCB format for fitting inside sensors, 19mm diameter, 7.6mm height
- Standard excitation of 5V
- Outputs of 4-20mA, 0-10V, 0-5V, ±10V
- Non interaction between the trimmers makes calibration fast and easy
- High speed 1000 Hz
- User selectable span resistor
- 2 wire 4-20mA load cell option
- Robust design, of high noise immunity & reverse polarity protected
- Option of an in-line enclosure (shown on thumbnail image on left)
ICA (models ICA1 - ICA6 S & H)
The ICA range of miniature load cell signal conditioners offer a high performance strain gauge amplifier in miniature OEM format, designed specifically for fitting inside load cells, converting a standard load cell to a 0-10 volt or 4-20mA output.
The ICA family offers high stability and fast response.
The amplifier is available in 6 versions with two performance categories S & H (industrial & very high stability).
The ICAH range offer very low drift over wide operating temperatures.
ATEX certification pending on some variants.
Optional (ILE) in line enclosure to convert a standard load cell to a conditioned load cell output
Industrial Stability ICAS
ICA1S 0-10V 3 wire
ICA2S 0-5V 3 wire
ICA3S ±10V 4 wire
ICA4S 4-20mA 3 wire
ICA5S 4-20mA 2 wire
ICA6S ± 10V 3 wire
Very High Stability ICAH
ICA1H 0-10V 3 wire
ICA2H 0-5V 3 wire
ICA3H ± 10V 4 wire
ICA4H 4-20mA 3 wire
ICA6H ± 10V 3 wire
ATEX Intrinsically Safe
ICA5ATEX 4-20mA 2 wire
ICA1,2,3,6 Voltage Output Amplifiers |
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ICA1 0.1-10.1V |
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| Parameter | Min | Typical | Max | Units/Notes |
| Electrical & Environmental | ||||
| Supply Voltage Range | 13 | 24 | 30 | Volts |
| Operating Current | 23 | mA Note 1 | ||
| Operating Temp Range | -40 | 85 | ºC | |
| Storage Temp Range | -40 | 85 | ºC | |
| Reverse Polarity Protection | -30 | Volts | ||
| Measurements | ||||
| Bridge Excitation | 4.9 | 5 | 5.1 | Volts |
| Bridge Impedance | 330 | 350 | 5000 | Ohms |
| Bridge Sensitivity | 0.5 | 2.5 | 150 | mV/V Note 2 |
| Output Voltage Range | 0.1 | +10.1 | Volts | |
| Output Load | 5000 | Ohms | ||
| Band Width | DC | 1000 | Hz | |
| Zero Adjustment | ±2 | %FR | ||
| Span Adjustment | ±8 | %FR | ||
| Linearity | 0.02 | %FR | ||
| Zero Temp Stability S | 0.0009 | 0.0025 | ±%FR/ºC | |
| Zero Temp Stability H | 0.0004 | 0.0015 | ±%FR/ºC | |
| Span Temp Stability S | 0.0025 | 0.0064 | ±%FR/ºC | |
| Span Temp Stability H | 0.002 | 0.0051 | ±%FR/ºC | |
ICA2 0.1-5.1V |
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| Electrical & Environmental | ||||
| Supply Voltage Range | 8.5 | 12 | 28 | Volts |
| Operating Current | 23 | mA Note 1 | ||
| Operating Temp Range | -40 | 85 | ºC | |
| Storage Temp Range | -40 | 85 | ºC | |
| Reverse Polarity Protection | -30 | Volts | ||
| Measurements | ||||
| Bridge Excitation | 4.9 | 5 | 5.1 | Volts |
| Bridge Impedance | 330 | 350 | 5000 | Ohms |
| Bridge Sensitivity | 0.5 | 2.5 | 150 | mV/V Note 2 |
| Output Voltage Range | 0.1 | ±5.1 | Volts | |
| Output Load | 5000 | Ohms | ||
| Band Width | DC | 1000 | Hz | |
| Zero Adjustment | ±2 | %FR | ||
| Span Adjustment | ±8 | %FR | ||
| Linearity | 0.02 | %FR | ||
| Zero Temp Stability S | 0.0009 | 0.0025 | ±%FR/ºC | |
| Zero Temp Stability H | 0.0004 | 0.0015 | ±%FR/ºC | |
| Span Temp Stability S | 0.0025 | 0.0064 | ±%FR/ºC | |
| Span Temp Stability H | 0.002 | 0.0051 | ±%FR/ºC | |
ICA3 ±10V |
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| Electrical & Environmental | ||||
| Supply Voltage Range | ±13 | ±15 | ±15 | Volts |
| Operating Current | 23 | mA Note 1 | ||
| Operating Temp Range | -40 | 85 | ºC | |
| Storage Temp Range | -40 | 85 | ºC | |
| Reverse Polarity Protection | -30 | Volts | ||
| Measurements | ||||
| Bridge Excitation | 4.9 | 5 | 5.1 | Volts |
| Bridge Impedance | 330 | 350 | 5000 | Ohms |
| Bridge Sensitivity | 0.5 | 2.5 | 150 | mV/V Note 2 |
| Output Voltage Range | -10 | +10 | Volts | |
| Output Load | 5000 | Ohms | ||
| Band Width | DC | 1000 | Hz | |
| Zero Adjustment | ±2 | %FR | ||
| Span Adjustment | ±8 | %FR | ||
| Linearity | 0.02 | %FR | ||
| Zero Temp Stability S | 0.0009 | 0.0025 | ±%FR/ºC | |
| Zero Temp Stability H | 0.0004 | 0.0015 | ±%FR/ºC | |
| Span Temp Stability S | 0.0025 | 0.0064 | ±%FR/ºC | |
| Span Temp Stability H | 0.002 | 0.0051 | ±%FR/ºC | |
ICA6 ±10V |
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| Electrical & Environmental | ||||
| Supply Voltage Range | 14 | 15 | 18 | Volts Note 3 |
| Operating Current | 30 | mA Note 1 | ||
| Operating Temp Range | -40 | 85 | ºC | |
| Storage Temp Range | -30 | ºC | ||
| Reverse Polarity Protection | Volts | |||
| Measurements | ||||
| Bridge Excitation | 4.9 | 5 | 5.1 | Volts |
| Bridge Impedance | 330 | 350 | 5000 | Ohms |
| Bridge Sensitivity | 0.5 | 2.5 | 150 | mV/V Note 2 |
| Output Voltage Range | -10 | +10 | Volts | |
| Output Load | 5000 | Ohms | ||
| Band Width | DC | 1000 | Hz | |
| Zero Adjustment | ±2 | %FR | ||
| Span Adjustment | ±8 | %FR | ||
| Linearity | 0.02 | %FR | ||
| Zero Temp Stability S | 0.0009 | 0.0025 | ±%FR/ºC | |
| Zero Temp Stability H | 0.0004 | 0.0015 | ±%FR/ºC | |
| Span Temp Stability S | 0.0025 | 0.0064 | ±%FR/ºC | |
| Span Temp Stability H | 0.002 | 0.0051 | ±%FR/ºC | |
ICA4,5 Current Output Amplifiers |
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ICA4 4-20mA |
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| Electrical & Environmental | ||||
| Supply Voltage Range | 10 | 24 | 30 | Volts Note 4 |
| Operating Current | 27 | 43 | mA Note 1 | |
| Operating Temp Range | -40 | 85 | ºC | |
| Storage Temp Range | -40 | 85 | ºC | |
| Reverse Polarity Protection | -30 | Volts | ||
| Measurements | ||||
| Bridge Excitation | 4.9 | 5 | 5.1 | Volts |
| Bridge Impedance | 330 | 350 | 5000 | Ohms |
| Bridge Sensitivity | 0.5 | 2.5 | 150 | mV/V Note 2 |
| Output Current Range | 4 | 20 | mA | |
| Output Load | 500 | Ohms | ||
| Band Width | DC | 1000 | Hz | |
| Zero Adjustment | ±2 | %FR | ||
| Span Adjustment | ±8 | %FR | ||
| Linearity | 0.02 | %FR | ||
| Zero Temp Stability S | 0.0009 | 0.0025 | ±%FR/ºC | |
| Zero Temp Stability H | 0.0004 | 0.0015 | ±%FR/ºC | |
| Span Temp Stability S | 0.0025 | 0.0064 | ±%FR/ºC | |
| Span Temp Stability H | 0.002 | 0.0051 | ±%FR/ºC | |
ICA5S 4-20mA |
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| Electrical & Environmental | ||||
| Supply voltage Range | 7.5 | 24 | 30 | Volts |
| Operating Current | 4 | 20 | mA (2 wire) | |
| Operating Temp Range | -40 | 85 | ºC | |
| Storage Temp Range | -40 | 125 | ºC | |
| Reverse Polarity Protection | -30 | Volts | ||
| Measurements | ||||
| Bridge Excitation | 1.05 | 1.11 | 1.16 | Volts Note 5 |
| Bridge Impedance | 350 | 1000 | 5000 | Ohms Note 6 |
| Bridge Sensitivity | 0.5 | 2.5 | 55 | mV/V Note 2 |
| Output Current Range | 4 | 20 | mA | |
| Output Load | 800 | Ohms | ||
| Band Width | DC | 1000 | Hz | |
| Zero Adjustment | ±2 | %FR Note 5 | ||
| Span Adjustment | ±8 | %FR | ||
| Linearity | 0.002 | %FR | ||
| Zero Temp Stability S | 0.001 | 0.005 | ±%FR/ºC | |
| Span Temp Stability S | 0.007 | 0.014 | ±%FR/ºC | |
ICA5A 4-20mA |
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| Electrical & Environmental | ||||
| Supply Voltage Range | 9 | 24 | 30 | Volts |
| Operating Current | 4 | 20 | mA (2 wire) | |
| Operating Temp Range | -40 | 85 | ºC | |
| Storage Temp Range | -40 | 125 | ºC | |
| Reverse Polarity Protection | -30 | Volts | ||
| Measurements | ||||
| Bridge Excitation | 1.05 | 1.11 | 1.16 | Volts Note 5 |
| Bridge Impedance | 350 | 1000 | 5000 | Ohms Note 6 |
| Bridge Sensitivity | 0.5 | 2.5 | 55 | mV/V Note 2 |
| Output Current Range | 4 | 20 | mA | |
| Output Load | 800 | Ohms | ||
| Band Width | DC | 1000 | Hz | |
| Zero Adjustment | ±2 | %FR Note 5 | ||
| Span Adjustment | ±8 | %FR | ||
| Linearity | 0.02 | %FR | ||
| Zero Temp Stability S | 0.001 | 0.005 | ±%FR/ºC | |
| Span Temp Stability S | 0.007 | 0.014 | ±%FR/ºC | |
| Notes | Note 1 - With 350 Ohm load cell connected. Note 2 - Factory setting is the typical value shown. For other values fit an alternative calibration resistor (see manuals in Downloads tab). Note 3 - ICA6 maximum voltage can be increased to 24V with a 1000 Ohm load cell. Note 4 - The ICA4 can tolerate a lower supply voltage if the output load is reduced e.g. operation is possible at 8V provided that the load does not exceed 150 Ohm. Note 5 - ICA5 with 1000 Ohms load cell connected. Note 6 - ICA5 recommended bridge impedance is 1000 Ohms or greater. |
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| General Notes | The voltage between either of the power supply connections and the load cell shield should not exceed 50V. Any leakage will be greater than 10M Ohms. FR = Full Range |
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| Environmental | ||||
| Storage Temperature | -40 to +85ºC | |||
| Operating Temperature | -40 to +85ºC | |||
| Relative Humidity | 95% maximum non condensing | |||
| CE Environmental Approvals | European EMC Directive 2004/108/EC, Low Voltage Directive 2006/95/EC | |||

Documents
Software
No relevant software available
Product order options
| Options | Code |
|---|---|
| 3 Wire 0.1 - 10.1V Industrial Stability | ICA1S |
| 3 Wire 0.1 - 5.1V Industrial Stability | ICA2S |
| 4 Wire ±10V Industrial Stability | ICA3S |
| 3 Wire 4-20mA Industrial Stability | ICA4S |
| 2 Wire 4-20mA Industrial Stability | ICA5S |
| OEM 2 Wire 4-20mA ATEX (Intrinsically Safe) | ICA5ATEX |
| 3 Wire ±10V 14-24V Sup. Industrial Stability | ICA6S |
| 3 Wire 0.1 - 10.1V High Stability | ICA1H |
| 3 Wire 0.1 - 5.1V High Stability | ICA2H |
| 4 Wire ±10V High Stability | ICA3H |
| 3 Wire 4-20mA High Stability | ICA4H |
| 3 Wire ±10V 14-24V Sup. High Stability | ICA6H |
| In-Line Converter Housing for Load Cells | ILE |
These are the following industries and applications in which this product has been used:
- Automotive - Monitoring Tyre Behaviour in Formula Racing
- Theatre & Events - Measuring Forces on Concert Canopies
- Automotive - Data Acquisition in Formula SAE Suspension and Steering System Validation Tests
- Theatre & Events - Monitoring Marquee Stresses
- Hazardous Areas - Load Monitoring of Tank Weight in Explosive Atmospheres
- Hazardous Areas - Remote Display and Logging in Zone 0
- Agriculture - Signal Conditioning for OEM Load Cells











