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JC631 Differential Pressure Transmitter

Pressure Range:0-100Kpa
Pressure Connector:M20X1.5 male thread
Power Supply:24VDC
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  • Description
  • Electrical Connections
  • Technical Parameters
  • Ordering Information
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JC631 differential pressure transmitter adopts foreign-made differential pressure sensitive chips and special transducer integrated circuits as well as high-performance keycomponents and strict production process to ensure that this series product features superior performance, small dimensions and easy installation. Therefore, it is the optimum choice for micro differential pressure, flow field, flow rate, and flow measurement.


* High cost performance
* Reliable and stable performance 
* Range of differential pressure: 0 ~ 10KPa … 2MPa
* Resistant to static pressure of up to 20MPa
* Fully made of stainless steel, with small dimensions,light weight, and easy installation 


* Industrial process control
* Medical instrument 
* Aerodynamic measurement 
* Hydraulic and pneumatic equipment 
* Flow measurement
JC631 Differential Pressure Transmitter
JC631 Differential Pressure Transmitter
Measuring range 0~10KPa…2 MPa
Full scale range 10~ 50KPa
Positive permissible overpressure ≥3 times of full scale, ≤2MPa
Negative permissible overpressure 2 times of full scale, ≤2MPa
Maximun static pressure ≤20MPa
Overall accuracy(nonlinearity + repeatability+ hysteresis) ±0.1%FS ±0.25%FS ±0.5%FS
Zero temperature error ±0.02%FS/℃(typical) ±0.05%FS/℃(maximum)
Sensitivity temperature error ±0.02%FS/℃(typical) ±0.05%FS/℃(maximum)
Influence of static pressure ±0.05%FS/100KPa
Operating temperature -10~80℃
Compensation temperature -10~50℃
Long-term stability ±0.3%FS/year(≤200kPa) ±0.1%FS/year(≥200kPa)
Range of power supply 12~36V DC(generally 24V DC)
Output signal Two-wire 4~20mA DC, three-wire 0/1~5V DC
Response time ≤2 ms
Insulation resistance 100MΩ, 500VDC
Influence of vibration ≤1% change after vibration at 3gRMS 30~2000Hz
Impact ≤1% change after impact of 100g for 10ms
Service life 1×108pressure cycles
Medium The liquid or gas adapting to structural material
Enclosure protection class Plug-in type(IP65); cable type(IP67)
Safety and explosion protection Ex iaⅡ CT5(intrinsically safe explosion-proof type)
Weight Approx 0.35kg
Thermal hysteresis ±0.1%FS(typical value)
Enclosure protection class Plug-in type(IP65); cable type(IP67)
JC631 Differential Pressure Transmitter
  Range Measuring range(0~ X  KPa or MPa)
  Code Overall accuracy (linearity + repeatability+ hysteresis)
1 ±0.5%FS
2 ±0.25%FS
3 ±0.1%FS
  Code Signal output (standard power supply)
A1 4~20mA (12~36V DC)
V1 1~5V DC (12~36V DC)
V2 0~5V DC (12~36V DC)
V3 0.5~4.5V DC (12~36V DC)
  Code Additional functions
F1 M20x1.5 male thread
F2 G1/4 male thread
F0 Special
W1 Cable type(IP67, 2m)
W2 Socket type(IP65, DIN43650)
E Intrinsically safe explosion-proof type Ex iaIICT6
JC631 (0~50KPa) —1 —A1 —F2 —W1   Differential Pressure Transmitter

Tips for Type Selection

1. In order to guarantee safe and reliable operation of the transducer, it is recommended that the three-valve manifold should be installed between the point to be measured and the transducer to ensure that the medium to be measured is slowly and evenly applied on the positive and negative chambers.
2. During installation, it is recommended that pressure connections on both ends should be located above the horizontal line so as to minimize the influence of the installation position on the product.
3. During type selection, please note that the static pressure to be measured shall be less than 20MPa and the overpressure to be applied on the positive and negative chambers shall not exceed the specified value of the product.
4. As an additional function code for type selection, the code “E” for intrinsically safe explosion-proof type Ex iaIICT6 denotes that power source must be supplied via safety barrier
5. For other special requirements, please discuss with us and clearly indicate them in the order.
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