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    Miniature Load Cell Amplifier | In-Cell Amplifier | ICA

    Tiny, High Performance, Fits Inside Your Load Cell

    At a Glance

    • Ø19.5mm x 7.6mm high
    • 0-5Vdc, 0-10Vdc, 4-20mA, & ±10Vdc Output Versions
    • Low Current Consumption
    • Bandwidth: 1kHz max.
    • Available with In-Line enclosure for mounting on transducer cable
    • Ideal for when you want a Small Amplifier to Fit Inside Your Load Cell
    • Compact at Only 19mm Diameter 
    • Can Fit Inside a Wide Variety of Strain Gauge Transducers
    • 6 Different Outputs to Suit Your Exact Application


    The ICA miniature load cell amplifier measures just 19mm in diameter and 7.6mm in height and is designed for incorporation into the body of a broad range of strain gauge transducers and load cells.

    When space inside the load cell or transducer is restricted, the ICA miniature load cell amplifier can also be mounted in-line on the transducer cable inside a dedicated enclosure suitable for the application environment.  We offer our own compact IP65-rated die cast enclosure the measures just 50mm x 45mm x 30mm which suits most general industrial applications (pictured right).

    There are a total of six output variants of the miniature ICA load cell amplifier available:

    • ICA1H: 0.1 to 10Vdc  (13 to 30Vdc supply)
    • ICA2H: 0.1 to 5Vdc  (8.5 to 28Vdc supply)
    • ICA3H: ±10Vdc  (±13 to ±15Vdc bi-polar supply)
    • ICA4H: 4-20mA (3-wire)  (10 to 30Vdc supply)
    • ICA5S: 4-20mA (2-wire)  (7.5 to 30Vdc supply) Currently unavailable
    • ICA6H: ±10Vdc  (14 to 18Vdc supply)

    We hold stock of all the miniature load cell amplifier models mentioned above for immediate despatch.

    The high speed, reliability and clean output of the ICA4H miniature amplifier enabled the data to be analysed immediately after each test.

    Andy Hall, Director, 4c Engineering Miniature Load Cell Amplifier | In-Cell Amplifier | ICA July 9, 2018

    Technical Specifications

    Output Range:0.1 to 10.1 Vdc0.1 to 5.1 Vdc0 to ±10Vdc4 to 20mA0 to ±10Vdc4 to 20mASee opposite
    Minimum Output: not on Mantracourt spec0.07Vdc0.07Vdc0Vdc3.8mA0Vdc3.8mASee opposite
    Number of Connections: not on Mantracourt spec334332See opposite
    Mode of Operations:Uni-directionalUni-directionalBi-directionalUni-directionalBi-directionalUni-directionalSee opposite
    Power Supply: Minimum138.5±1310 (Note 4)14 (Note 3)7.5Vdc
    Typical2412±1424 (Note 4)15 (Note 3)24Vdc
    Maximum3028±1530 (Note 4)18 (Note 3)30Vdc
    Operating Current: Typical22 (Note 1)22 (Note 1)22 (Note 1)Min 26, Max 42 (Note 1)30 (Note 1)4 to 20mA
    Bridge Excitation Voltage:5±0.15±0.15±0.15±0.15±0.11.1 nom (Note 5)Volts
    Bridge Resistance: Min350350350350350350 (Note 6)Ohms
    Typ100010001000100010001000 (Note 6)Ohms
    Max500050005000500050005000 (Note 6)Ohms
    Bridge Sensitivity (Note 2): Min0.
    Minimum Resistance across Output:50005000500010005000800Ohms
    Maximum Loop Resistance: not on Mantracourt specN/AN/AN/A250N/A800Ohms
    Output Bandwidth:1000Hz
    Zero Adjustment:±2±2±2±2±2±2 (Note 5)%FSO
    Span Adjustment:±8±8±8±8±8±8%FSO
    Output Linearity:<0.02<0.02<0.02<0.02<0.02<0.02±%FSO
    Zero Temp Coefficient: Typ0.00040.00040.00040.00040.00040.001±%FSO/˚C
    Span Temp Coefficient: Typ0.0020.0020.0020.0020.0020.007±%FSO/˚C
    Operating Temperature Range:-40 to +85˚C
    Storage Temperature Range:-40 to +85˚C
    Reverse Polarity Protection:-30Vdc
    Maximum Relative Humidity:95% non-condensing
    Connection Method: not on Mantracourt specPlated through holes
    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.
    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.

    Product Dimensions

    ICA Miniature Load Cell Amplifier and Enclosure Outline Drawings

    Ordering Codes & Options

    Core ProductSupply VoltageExample Result
    ICA0.1 to 10.1Vdc / 13 to 30VdcICA1H
    ICA0.1 to 5.1Vdc / 8.5 to 28VdcICA2H
    ICA0 to ±10Vdc / ±13 to ±15VdcICA3H
    ICA4 to 20mA (3-wire) / 10 to 30VdcICA4H
    ICA4 to 20mA (2-wire) / 7.5 to 30VdcICA5S
    ICA0 to ±10Vdc / 14 to 18VdcICA6H


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    *Please note: The prices shown are valid in the UK only and do not include carriage charges. For overseas pricing please contact a member of our sales team or your local distributor.

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