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XPM3051 Capacitance Differential Pressure Transmitter

Capacitance Differential Pressure Transmitter


   Pressure or differential pressure will cause changing of capacitance value, analog signal convert to digital signal via AD and then being transfered to microprocessor, processed by microprocessor thenconvertted to 4~20mA analog electricity signal via DA 


Super performance, use to measure pressure, differential pressure,liquid level, rate of flow.

Accuracy: ±0.075%~±0.1%F.S

Stability: ±0.25%

Standard 4~20mA,RS-485 communication interface

Support upgrade of basic scene control technique


Compatible with 316LSS,noncorrosive liquids.   

 Shipping and aviation industry.

Hydraulic pressure and pneumatic control system

Apply in Petroleum industry, chemical industry, electric power, metallurgy, hydrology etc process control.

Technical Data


Analog output: two –wire 4-20mADC

Digital output: two –wire 4-20mADC and superimposing variable digital signal accord with HART

Power supply

supply voltage 12.5-45VDC

Limit load

Max load resistor Rmax in loop decided by the supply voltage, see the below drawing. HART PROTOCOL require the load resistor not less than 250Ω,not more than 600Ω

Communication distance

Max. 1.5Km, multi-address communication can connect 15 smart transmitters Max.


4 digital display,5 digit LCD display, pointer type.


ExiaIICT5;explosion suppression type

Zero offset

Can positive transfer or negative transfer, but can not overstep the utmost value


ambient temperature -40-85℃(When choose LCD : -20-70℃)

Medium temperature


Static pressure and single side overpressure

3.45KPa(absolute pressure)31.2MPagauge pressure

Relative humidity


Run-up time

less than 5 sec.

Capability change

Less than 0.16cm3

Damp adjust

0.2025 second

Malfunction alarming

If occur malfunction, automatism diagnose function will output 3.9 or 21.0mA

Configuration protection

To avoid the data are modified random, can utilize software or protect switch lock the record data