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3139_0 Micro Load Cell (0-100g) - CZL639HD

Product Code: 3139
Excl. VAT: £7.24 Incl. VAT: £8.69
  • Buy 5 for £6.56 (£7.87 incl. tax) each and save 10%
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A load cell is a force sensing module - a carefully designed metal structure, with small elements called strain gauges mounted in precise locations on the structure.

Load cells are designed to measure a specific force, and ignore other forces being applied.

The electrical signal output by the load cell is very small and requires specialized amplification. Fortunately, the 1046 PhidgetBridge will perform all the amplification and measurement of the electrical output.

Load cells are designed to measure force in one direction. They will often measure force in other directions, but the sensor sensitivity will be different, since parts of the load cell operating under compression are now in tension, and vice versa.

This Single Point Load Cell is often used in small, high-precision scales. It’s mounted by bolting down the end of the load cell where the wires are attached, and applying force on the other end. Where the force is applied is not critical, as this load cell measures a shearing effect on the beam, not the bending of the beam. If you mount a small platform on the load cell, as would be done in a small scale, this load cell provides accurate readings regardless of the position of the load on the platform.

Product Features

  • Maximum Weight: 100g
  • Wheatstone Bridge Sensor
  • Measures shear force
  • Small: 35mm x 12mm x 4mm
  • Plugs into 1046 - PhidgetBridge 4-Input 

Sensor Properties

Sensor Type Shear Load Cell
Weight Capacity Max 100 g
Cell Repeatability Error Max ± 50 mg
Cell Non-Linearity Max 50 mg
Cell Hysteresis Max 50 mg


Electrical Properties

Rated Output 600 μV/V
Rated Output Error Max ± 150 μV/V
Output Impedance 1 kΩ
Creep 100 mg/hr
Temperature Effect on Zero 5 mg/°C
Temperature Effect on Span 5 mg/°C
Supply Voltage Min 3 V DC
Supply Voltage Max 10 V DC


Physical Properties

Operating Temperature Min -10 °C
Operating Temperature Max 40 °C
Compensated Temperature Min -10 °C
Compensated Temperature Max 60 °C
Cable Length 110 mm
Cable Gauge 4x 30 AWG
Material Aluminium Alloy
Screw Thread Size 2.5M
Weight 3.2 g





Make sure to calibrate your load cell before using it. You can find information on how to calibrate the cell in the 3137 Datasheet. You should also look at the 1046 – PhidgetBridge Product Manual.


The 3138 connects to a bridge on the 1046 – PhidgetBridge 4-Input

The following table shows how to connect the Load Cell Wires to the bridge connectors.

Wire Color Red Green White Black/Yellow
Bridge Connector 5V + - GND




Product Attachments

View File3139 Mechanical Drawing    Size: (12.16 KB)
View FileDownload 3D Step File    Size: (23 KB)

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Whenever possible, items which are in stock are dispatched the same day, or the next working day.

Large and/or heavy items are dispatched by UPS courier service and these orders must be placed before 15:00hrs (GMT) to ensure same day dispatch.

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3139_0 Micro Load Cell (0-100g) - CZL639HD