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overview：
Emerson KJ3222X1-BA1 is an 8-channel 4-20 mA HART II series redundant card suitable for industrial process control and monitoring. It uses 4 - 20 mA current loop as the signal transmission mode. The sensor or transmitter acts as a current source and outputs the corresponding current signal according to the change of the measured physical quantity. The module has 8 channels and can be connected to various signal sources. It uses hardware backup, and each input channel is equipped with an independent backup channel. The circuit design of the two is independent of each other, and the functions are the same. Both can receive and process input signals from the same signal source.
Fuctions & Features:
- Working mechanism of current loop: Emerson KJ3222X1-BA1 module adopts 4 - 20 mA current loop as signal transmission mode. In this current loop, the sensor or transmitter acts as a current source, and outputs the corresponding current signal in the range of 4 - 20 mA according to the change of the measured physical quantity (such as temperature, pressure, flow, etc.).
- Signal access: Emerson KJ3222X1-BA1 module has 8 channels, each of which can be connected to a signal source such as a sensor or transmitter. These signal sources will generate various analog signals.
- Redundancy function: Emerson KJ3222X1-BA1 adopts hardware backup, and each input channel is equipped with an independent backup channel. The two channels are independent of each other in circuit design, but the functions are exactly the same, and both can receive and process input signals from the same signal source.
Specification：
|
Parameter |
Details |
|
Local Bus Power |
12 VDC at 150 mA |
|
Bussed Field Power |
24 VDC at 300 mA |
|
Field Circuit |
24 VDC at 30 mA/Ch |
|
Environmental Specifications - Ambient Temperature |
-40 °C to +70 °C |
|
Environmental Specifications - Shock |
10 g half - sine wave for 11 ms |
|
Environmental Specifications - Vibration |
1 mm peak to peak from 2 to 13.2 Hz; 0.7 g from 13.2 to 150 Hz |
|
Environmental Specifications - Airborne Contaminants |
ISA - S71.04 – 1985 Airborne Contaminants Class G3 |
|
Environmental Specifications - Relative Humidity |
5 to 95% Non - Condensing |
|
Terminal block key position |
A1 |
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