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These 3-pin sensors are capable of measuring force and pressure in environments as hot as 400°F (approximately 200°C). The HT201 measures a standard force of 222 N (50 lb), with a maximum force of 2,224 N (500 lb).
The dynamic range of this versatile force sensor can be modified by changing the drive voltage and adjusting the resistance of the feedback resistor (see "How to Adjust the Force Range" within the Electronics tab on the left).
Ideal for high temperature applications
Linearity (Error): < ±3% of Full Scale††
Repeatability: < ±3.5%
Hysteresis: < 3.6 of Full Scale
Drift: < 3.3 per log time
Temperature Range: -40°C - 204°C (-40°F - 400°F)
Output Change/Degree F: 0.16%
Acceptance Criteria: ±40% sensor-to-sensor variation
†All data above was collected utilizing an Op Amp Circuit. If your application cannot allow an Op Amp Circuit, consult the FlexiForce Integration Guide, or contact a FlexiForce Applications Engineer. Specifications based on pressures up to 500 psi and represent the average value throughout a range of temperatures up to 400°F.
††Linearity up to 889N (200 lb)
If your application cannot allow an Op Amp Circuit, consult the FlexiForce Integration Guide, or contact a FlexiForce Applications Engineer. If you prefer to build your own electronics, we recommend using a circuit similar to the diagram below. This will provide linear data, making it easier to calibrate the sensor.
*In order to measure higher forces, apply a lower drive voltage (-0.5 V, -0.25 V, etc.) and reduce the resistance of the feedback resistor (1kΩ min.) To measure lower forces, apply a higher drive voltage and increase the resistance of the feedback resistor.
The FlexiForce OEM Development Kit allows design engineers to economically obtain proof-of-concept data while determining how FlexiForce force sensors will behave within their product or application environment.
The FlexiForce Quickstart Board is a finished single voltage source circuit which can be quickly dropped into a prototype or easily designed into a product to obtain force measurements.
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