Button Load Cell (0-50kg) – CZL204E

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.

This Button Load Cell is used in applications that require a thin form factor. The bottom of the load cell is bolted, and force applied to the button on the top. By loading only the button, which is slightly rounded, the load cell is less sensitive to errors resulting from the load not pushing down exactly straight on the load cell.

Sensor Properties

Sensor Type	Compression Load Cell
Weight Capacity Max	50 kg
Maximum Overload	60 kg
Creep	20 g/hr
Zero Balance	± 500 g
Cell Repeatability Error Max	± 100 g
Cell Non-Linearity Max	100 g
Temperature Effect on Span	2.5 g/°C
Temperature Effect on Zero	2.5 g/°C

Electrical Properties

Rated Output	1 mV/V
Rated Output Error Max	40 ?V/V
Output Impedance	350 ?
Supply Voltage Max	5 V DC

Physical Properties

Compensated Temperature Min	-10 °C
Compensated Temperature Max	40 °C
Operating Temperature Min	-20 °C
Operating Temperature Max	55 °C
Cable Length	3 m
Cable Gauge	30 AWG
Material	Aluminium Alloy & Alloy Steel
Screw Thread Size	M3x0.5

The Data Sheet below has a comprehensive glossary that describes in practical terms the meaning and usefulness of the specifications.

• Load Cell Primer
• Mechanical Drawing