Strain Measurement Devices - P940 Pressure Sensors - Custom and Standard Devices Pressure Measurement Devices

Thin Film Pressure Diaphragm -
P940

P940 Diaphram
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The P940 Pressure diaphragm is a stainless-steel wetted surface pressure diaphragm with a proprietary sputtered thin-film full-bridge strain gauge circuit. The sputtered metal strain gauge circuit offers superior long term stability and higher temperature capability than other strain gauge technologies. A unique lead out pad design provides ease of soldering and rugged construction. The 10KOhm bridge offers low power consumption for transmitters. Ideal for pressure transducer OEMs.

* Pressure Transducers
* Pressure Transmitters
* Aerospace
* Automotive
* Hydraulics

* Stainless-Steel Wetted Surface
* Low Power Consumption
* Unsurpassed Stability
* Gold Contact Soldering Pad
* Ultra-High Temperature
Versions Available
* Rugged Construction

* 0.06% FRO Drift/Year
* 10,000 Ohm Full Bridge
* -40°C to 200°C
* 500 Vac Dielectric Available
* 50 Through 6,000 psi Ranges

Click here to download the specifications in .pdf format

Specifications

PERFORMANCE
Repeatability	< 0.03 % Span
Over Pressure Limit, Proof	150 % of Range
Over Pressure Limit, Burst	400 % of Range
Long Term Stability
Standard	< 0.8 % Span per year
Optional	< 0.06 % Span per year
Temp. Effect on Zero Balance
Standard	< 0.03 % Span / °C
Optional	< 0.06 % Span / °C
Temp. Effect on Span
Standard	< 0.025 % Reading / °C
Optional	< 0.06 % Reading / °C
Operating Temp. Range
Standard	-40°C (-40°F) to 150°C (302°F)
Optional	-40°C (-40°F) to 200°C (392°F)
Optional II	Consult factory for higher temps.
Calibrated Temp. Range	-20°C (-4°F) to 125°C (257°F)
Wetted Material	Stainless Steel

ELECTRICAL
Rated Output (R.O.)	2 mV / V nominal
Excitation	5 - 20 V ac or dc
Bridge Configuration
Standard	Full Bridge, 4 wire closed
Optional	Full Bridge, 5 wire open
Bridge Resistance	10,000 Ω ±2 %
Insulation Resistance
Standard	1,000 Meg ohm @ 50 Vdc
Optional	> 500 Vac rms breakdown
Electrical Termination	Gold Solder Pads on Ceramic Substrate
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