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Chongqing Chuanyi Automation Co., Ltd
Chongqing Henghe EJA pressure transmitter
NegotiableUpdate on 05/06
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Overview
The Chongqing Henghe EJA pressure transmitter adopts single crystal silicon resonant sensor technology, which is suitable for measuring the flow rate, liquid level, density, and pressure of liquids, gases, or vapors. The EJA110E converts measured differential pressure into a 4-20mA DC current signal output, which can measure, display, or remotely monitor static pressure. It has functions such as fast response, remote setting, and self diagnosis. The $r $n EJA-E series products offer BRAIN, HART/HART (1-5VDC) low-power type, FF fieldbus, and PROFIBUS PA communication protocols, with standard configuration certified by SIL2 safety.
Product Details
Chongqing Henghe EJA pressure transmitterFunctional Specifications
Output '◇'
4-20mA HART/BRAN (output signal code D&J)
Two wire system with digital communication, 4-20mA DC output, can be set as linear or square root. The BRAN or HART FSK protocol is loaded on a 4-20mA signal, with an output range of 3.6mA to 21.6mA
To comply with NAMUR NE43, output limits can be pre-set through option codes C2 or C3.
1-5V HART (output signal code Q)
Three wire or four wire system 1-5V low-power type can be set to linear or square root.
The HART protocol is loaded on the 1-5V range, with an output range of 0.9-5.4vdc
Fault alarm (output signal code D&J)
4-20mA HART/BRAN (output signal code D&J)
Simulated output status during CPU failure and hardware error:
High output: 110%, ≥ 21.6mA DC (standard)
Low output: -5%, ≤ 3.2mA DC
1-5V HART (output signal code Q)
Simulated output status during CPU failure and hardware error:
High output: 110%, ≥ 5.4V DC (standard)
Low output: -5%, ≤ 0.8V DC
zero adjustment
Within the upper and lower limits of the membrane box range, the zero point can be adjusted arbitrarily.
External zeroing
Chongqing Henghe EJA pressure transmitterIt can be continuously zeroed within the range, with a resolution of 0.01%. The range can be adjusted using the range setting switch on the meter head.
To comply with NAMUR NE43, output limits can be pre-set through option codes C2 or C3.
1-5V HART (output signal code Q)
Three wire or four wire system 1-5V low-power type can be set to linear or square root.
The HART protocol is loaded on the 1-5V range, with an output range of 0.9-5.4vdc
Fault alarm (output signal code D&J)
4-20mA HART/BRAN (output signal code D&J)
Simulated output status during CPU failure and hardware error:
High output: 110%, ≥ 21.6mA DC (standard)
Low output: -5%, ≤ 3.2mA DC
1-5V HART (output signal code Q)
Simulated output status during CPU failure and hardware error:
High output: 110%, ≥ 5.4V DC (standard)
Low output: -5%, ≤ 0.8V DC
zero adjustment
Within the upper and lower limits of the membrane box range, the zero point can be adjusted arbitrarily.
External zeroing
It can be continuously zeroed within the range, with a resolution of 0.01%. The range can be adjusted using the range setting switch on the meter head.
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