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Analog 4 to 20 mA Strain Gage Module


The Strainsert 2-wire Loop Powered 4 to 20 mA Strain Gage Modules are specially designed compact, high performance strain gage analog signal conditioner modules. They are aimed at 350 Ohm sensor applications which require high measurement accuracy, resolution, and stability. The internal signal conditioner reduces interference in noisy environments and allows for longer cable runs. The module and sensor may be powered by a typical DC power supply. Outputs may be configured for either UniPolar or Bi-Polar operation.

The modules may be mounted inside of the Strainsert sensor body in either a single bridge, dual bridge, or biaxial configuration.

Contact Strainsert Engineering for assistance with custom solutions, systems integration, or software development.




Features & Benefits  · Applications  · Specifications

Features & Benefits
Converts Bridge sensor output into 4 to 20 mA current loop.
Eliminates the need for external signal conditioner and interconnections.
Miniature package that fits into sensor body.
Ideal for single or multiple sensor systems.


Applications
Aerospace
Industrial Weighing
Marine
Automotive


Specifications

Current Loop Supply
Min: 7.5 Volts
Typical: 24 Volts
Max: 36 Volts

Reverse Voltage Protection
Min: -100 Volts

Operating Current
Min: 3 mA
Typical: 4-20 mA
Max: 28 mA

Operating Temperature
Min: -40 °F
Max: 185 °F

Storage Temperature
Min: -67°F
Max: 257°F

Bridge Resistance
Typical: 350 Ohns

Bridge Excitation
Min: .730 Volts
Typical: .733 Volts
Max: .740 Volts

Bridge Sensitivity
Min: 0.5 mV/V
Typical: 2.0 mV/V
Max: 6.0 mV/V

Bandwidth
Min: 0 Hz
Max: 235 Hz

Zero-Scale Temperature Stability
Max: 0.0100 %FS/°F

Full-Scale Temperature Stability
Max: 0.0150 %FS/°F

Electrical Isolation
Min: 10^10 Ohms at 50 VDC



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4-20 mA Strain Gage Module
(PDF, 173KB)