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General Type Isolation Film Pressure Sensor WPAK70

Summary:

WPAK70 is clamp type pressure sensor with one-stage silicon oil filling technology. Pressure to the diaphragm is transmitted to the pressure chip through silicon oil, and the compensation circuit corrects the pressure signal to a linear electrical signal. The exposed stressed diaphragm on the end face of the clamp directly feels the pressure, which can prevent scaling, unsanitary, viscous pressure blockage and other problems. It is widely used in food, medicine, wine and other hygienic industries and in occasions where the measuring medium may scale.

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APPLICATION

Pipeline Pressure Monitoring

The combustion gas used in the city is supplied to urban residents from the gas source point through the gas distribution and supply system. The main component of the gas distribution system is the gas pipeline. Compared with other pipelines, the tightness of gas pipelines has particularly strict requirements,

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PARAMETER

Specification Product Size

Technical Data Sheet

Detection range	-100kPa～0～10kPa…10MPa
Pressure Reference	GaugePressure/AbsolutePressure/Sealed Gauge Pressure
Power supply	1.5mA	Can be customized
input resistance	Constant current：2kΩ～5KΩ； Constant Voltage：3kΩ～18kΩ
Electrical Connection	Pin or Wiring
Compensation Temperature	0℃～60℃、-10℃～70℃	≤35kPa：0℃～60℃，＞35kPa：-10℃～70℃
Working Temperature	-40℃～120℃
Storage Temperature	-40℃～125℃
Insulation resistance	≥200MΩ/250VDC
Response Time	≤1ms	Up to90%FS
Measuring Medium	Liquid and Gas
Mechanical vibration	20g（20～5000HZ）
Shock Resistance	100g（10ms）
Lifespan	10×106（Pressure Cycle）

Structural Performance Index
Diaphragm material	316L
Housing Material	316L
Infused Liquid	Silicone oil
Oil	MCT(Medium chain triglycerides)

Basic Parameter Index
Item	Condition	Min	Special	Max	Unit	Remarks
Non-linear		-0.3	±0.25	0.3	%FS	Note⑴
Hysteresis		-0.05	±0.03	0.05	%FS
Repeatability		-0.05	±0.03	0.05	%FS
Zero Point Output		-2	±1	2	mV
Full-Range Output	1.5mA ,10kPa	20			mV
Full-Range Output	1.5mA,other range	50	90	150	mV
Zero Point Temperature Drift	10kPa	-2	±1.5	2	%FS	Note⑵
Zero Point Temperature Drift	Other Detection Range	-1.5	±0.75	1.5	%FS	Note⑵
Sensitivity Drift		-1.5	±0.75	1.5	%FS	Note⑵
Heat Hysteresis		-0.075	±0.05	0.075	%FS	Note⑶
Stability		-0.3	±0.2	0.3	%FS/Year

Notes：
⑴ Based on BFSL least square method.
⑵ In temperature r compensation ange,0℃～60 and -10℃～70℃ is refer to 30℃;-20℃～85℃ is refer to 32.5℃.
⑶ After high and low temperature, return to the reference temperature.

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The warranty period is one year from the date of shipment. If the appearance of the product is not damaged, it can be returned after confirmation. For damage not caused by Winsen, the customer shall bear all maintenance costs.