EJCDP Silicon Resistance Differential Pressure Transmitter

EJCDP Silicon Resistance Differential Pressure Transmitter  Using a digital silicon differential sensor as detecting principle to constitute differential pressure transmitter, inputting pressure is 0~1.2kPa to 0~10MPa, etc. Its best accuracy reaches 0.05% , 0.065%,0.075% etc

  • Price Term: FOB/CIF/EXW/DAP
  • Package: Exported Wooden case or according to customer request
  • Delivery Time:  7 to 10 working days
  • Transports: By sea, by air, by high express
  • Shipment Port: Shanghai Port
  • Origin of Place: Jiangsu
  • Warranty: 12 Months

The high-performance differential pressure transmitter EJCDP-A is suitable to measure liquid, gas, or steam flow as well as liquid level, density, and pressure. EJCDP-A outputs a 4~20 mA DC signal corresponding to the measured differential pressure. Its highly accurate and stable sensor can also measure the static pressure which can be shown on the integral indicator or remotely monitored via  HART communications. Other key features include quick response, remote set-up using communications, self-diagnostics, and optional status output for pressure high/low alarm.

It is Using differential capacitance as a detecting principle to constitute capacitance type differential pressure transmitter, inputting pressure is 0~1.2kPa to 0~10MPa, etc.

Service medium: liquid, gas, and vapor.

Overpressure limit: impose 0 (absolute pressure) ~6MPa pressure on either side of the transmitter. The transmitter is not damaged. The transmitter’s operation static pressure is detailed in the models and specifications sheet.

● Service: liquid, gas and steam

● Measuring range: 0~0.06 kPa to 0~40Mpa

● Output signal: 4~20mA DC (four-wire 220V AC power supply, 0~10mA DC output for special)

● Power supply: 12~45V DC, generally 24V DC

● Features of loading: relation equation of loading impedance RL and power voltage

Vs: RL <= 50(Vs-12)

● Indicator: pointer-type linearity indication 0~100% scale mark or LCD indicator, LED indicator.

● Explosion proof: a. explosion isolation d II CT6

b. intrinsically safe ia II CT6

● Positive and negative shifts: after positive and negative shifts of zero absolute values of upper-and-lower-limit values of span and measuring range not exceed 100% of upper limit of measuring range.( smart type: turn down ratio 20:1, 40:1)

Maximum positive shift is 500% of minimum adjusting span; maximum negative shift is 600% of minimum adjusting span.

● Temperature range: amplifier operation temperature range: -29 ~ +93C

(LT type: -25 ~ +70C); measuring component of fill silicone oil: -40 ~ +104C

flange type transmitter fill hi-temperature silicone oil: -20 ~ +315C normal silicone oil: -40 ~ +149C

● Static pressure: 4, 10, 25, 32Mpa

● Humidity: relative humidity 0~100%

● Volume absorption: < 0.16cm3

● Damping (phase step response): For silicone oil, generally between 0.2s and1.67s,continuous and adjustable


Differential Pressure Transmitter  EJCDP
10 Accuracy                                      
    B Reference Accuracy±0.075%
    C Reference Accuracy±0.1%
20 Span                                      
      B 0-200Pa~6kPa(0-20~600 mmH2O)/(0-2~60mbar)              
      C 0-400Pa~40kPa(0-40~4000 mmH2O)/(0-20~400mbar)              
      D 0-2.5kPa~250kPa(0-0.25~25 mH2O)/(0-25~2500mbar)            
      F 0-30kPa~3MPa(0-3~300 mH2O)/(0-0.3~30bar)                
30 Static pressure sensor
        0 None                                
        1 40MPa                                
        2 10MPa                                
40 Diaphragm fill fluid                            
          A 316L stainless steel Silicone oil                  
          B 316L stainless steel Fluorinated oil                
          C Hastelloy C Silicone oil                  
          D Hastelloy C Fluorinated oil                
          E Gold plated on 316L Silicone oil                  
          F Gold plated on 316L Fluorinated oil                
          G FEP plated on 316L Silicone oil                  
          T Tantalum Silicone oil                  
50 Working pressure                                  
            1 16MPa                            
            2 25MPa                            
            3 40MPa                            
60 Process connections                            
              N 7/16-20 UNF and 1/4-18 NPT female thread, No relief valve
              B 7/16-20 UNF and 1/4-18 NPT female thread, Relief valves at end of flanges
              U 7/16-20 UNF and 1/4-18 NPT female thread, Relief valves at the upper part of

the flange side

              D 7/16-20 UNF and 1/4-18 NPT female thread, Relief valve at the lower part of the flange side
              V Vertical mounting flange, 7/16-20 UNF and 1/4-18 NPT female thread, Relief valves at the upper part of the flange side
              L Level(Low side can select : B/ U/ D)            
              R Remote Seal            
70 Process connector gasket                            
                N Perbunan(NBR)                    
                F Viton (FKM)                  
                P Teflon (PTFE)                  
80 Special function                              
                  N None                    
                  F Square root output                
                  O Degrease cleansing treatment(Oxygen measurement must be with fluorinated oil filled capsule, Viton (FKM) gasket, <6MPa ,<60℃)
                  P Anti-lightning function
90 Mounting bracket                                
                  N None                  
                    1 304 stainless steel            
                    2 Carbon steel galvanized            
100 Process connector accessory                        
                      N None                
                      1 Stainless steel oval-shaped flange with 1/2 NPT female thread  
                      2 Stainless steel D-shaped connector with M20x1.5 male thread
110 Integral indicator                                  
                        N None            
                        1 LCD display          
                        2 Backlit LCD display            
120 Explosion protected type                                
                          N None            
                          A Intrinsically safe Approval CNEX ,ExiaIICT6
                          D Flameproof Approval  CNEX ,Exd IIC T6
                          B Intrinsically safe Approval ATEX ,ExiaIICT6  
                          H Flameproof Approval for ATEX  Exd IIC T6
130 Tag name plate                                
                            N None            
                            1 Position number on the nameplate
                            2 Hanging stainless steel plate
140 Manual                                    
                              C Chinese        
                              E English        

How to order

  1. Range
  2. Medium
  3. Working pressure
  4. Working temperature
  5. Diaphram material
  6. Working pressure

Horizontal Impulse Piping Type(side face)      Horizontal Impulse Piping Type(front side) 

Dimension-EJCDP differential pressure transmitter


Horizontal Impulse Wall mounting Type              Vertical Impulse Piping Type

Dimension-EJCDP differential pressure transmitter -2

Items Test items Basic standards Test conditions Performance Level
1 Radiated interference (Housing) GB/T 9254-2008 30MHz~1000MHz OK
2 Conducted interference(DC power port) GB/T 9254-2008 0.15MHz~30MHz OK
3 Electrostatic Discharge (ESD) Immunity GB/T 17626.2-2006 4kV(Line)


4 RF electromagnetic field immunity GB/T 17626.3-2006 10V/m (80MHz~1GHz) A
5 Frequency magnetic field immunity GB/T 17626.8-2006 30A/m A
6 Electrical Fast Transient Burst Immunity GB/T 17626.4-2008 2kV(5/50ns,5kHz) B
7 Surge Immunity GB/T 17626.5-2008 0.5kV(line to line)

1kV(line to ground)(1.2us/50us)

8 Conducted interference immunity induced by RF field GB/T 17626.6-2008 3V (150KHz~80MHz) A

Note:(1)Performance level A description: The technical specifications within the limits of normal performance.

(2)Performance level B description: Temporary reduction or loss of functionality or performance, it can restore itself. The actual operating conditions, storage, and data will not be changed.

Related Products

Scroll to Top