Differential Pressure Gauge

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PMD260 series LCD differential pressure gauge adopts silicon MEMS micro-pressure chip, after temperature compensation, linear compensation, signal amplification, V/I conversion, surge discharge, reverse polarity protection and other transmission circuit signal processing, output industry standard 4 ~20mA signal. All digital calibration, no movable potentiometer, temperature drift performance and stability are improved. 

PMD260 series LCD differential pressure guage adopts silicon MEMS micro-pressure chip, after temperature compensation, linear compensation, signal amplification, V/I conversion, surge discharge, reverse polarity protection and other transmission circuit signal processing, output industry standard 4 ~20mA signal. All digital calibration, no movable potentiometer, temperature drift performance and stability are improved.

This series of products adopts two kinds of isolation methods of chips. For products with a range of less than 5kPa, the chip is protected by elastic silicone gel, which is mainly used for differential pressure measurement of non-corrosive gases of silicon and silicone gel; the range of 5kPa and above, the chip is protected by a 316L stainless steel isolation diaphragm, filled with silicone oil, It is suitable for medium measurement without corrosion to stainless steel.

Range : 0Pa~200Pa…100kPa

Overload capability : ≤ 3 times full scale

Pressure Type : D (differential pressure)

Accuracy : 0.2% (custom), 0.5% (typical), 1.0% (maximum)

Long-term stability : ±0.2%FS/year (typical), ±0.5%FS/year (maximum)

Zero temperature drift : ±0.02%FS/°C, ±0.03%FS/°C

Sensitivity temperature drift : ±0.02%FS/°C, ±0.03%FS/°C

Compensation temperature : 0°C~50°C

Medium temperature : -30°C~70°C

Power supply : 12 ~ 30VDC

Output Signal : 4mA~20mA

0V~10V (output range can be customized)

Load Resistance : Current type: ≤ (U-12) / 0.02 (Ω)

Protection level : IP65