Description
Emerson KJ3201X1-EA1J
Technical Specifications
- Supported Signal: 4-20mA analog current signal
- Built-in surge suppression protection components
- Operating Ambient Temperature: 0℃ ~ 60℃
- Storage Temperature: -40℃ ~ 85℃
- Relative Humidity: 5% ~ 95%, non-condensing
- Installation Method: DIN rail mounting inside control cabinet
- Screw type wiring terminals
- Mechanical matching with DeltaV analog I/O modules
Functional Features Screw terminals support convenient wiring of field instrument shielded cables. Built-in surge suppression components absorb transient high voltage pulse from long field cables. Internal signal traces transmit analog signals between field side and DeltaV I/O module. Reserved test terminals support on-site loop signal measurement without removing wiring. Precise positioning structure ensures reliable electrical contact between terminal assembly and I/O module.
Application Scenarios DeltaV DCS control cabinets deployed in chemical plants, oil & gas facilities, pharmaceutical factories and water treatment plants. It works with DeltaV analog I/O modules to connect field pressure, flow, liquid level and temperature transmitters and control valves.
Performance Parameters Internal signal traces keep low attenuation for 4-20mA analog signal transmission. Surge protection components suppress instantaneous surge voltage effectively. Screw terminals maintain stable electrical contact under long-term cabinet vibration. Contact pins keep reliable connection after repeated I/O module plugging.
Material Composition Main body substrate adopts flame-retardant PA engineering plastic. Nickel-plated copper alloy screw terminals. Multi-layer glass fiber epoxy PCB. Solid-state surge suppression components. Anti-oxidation plated metal positioning contact pins.
Structural Features DIN rail fixed terminal base assembly. Front side with multiple screw wiring terminals for field instrument cables. Top contact pins connect to bottom connector of DeltaV analog I/O module. Reserved signal test terminals for loop inspection. Positioning buckle guarantees accurate alignment with plug-in I/O module.
Working Principle Field analog instrument cables connect to screw terminals of terminal assembly. Analog current signal passes through built-in surge protection circuit and internal PCB traces. Signal transmits upward through contact pins to DeltaV analog I/O module. Surge components absorb transient overvoltage from field cables to protect I/O module circuit. Test terminals lead out signal loop for field signal testing and fault diagnosis.
Installation Requirements Mount terminal assembly on standard DIN rail inside control cabinet and lock fixed buckle. Connect shielded twisted-pair field cables and tighten each terminal screw. Adopt single-point grounding for cable shield wire inside cabinet. Confirm top contact pins fully contact with I/O module after module installation. Separate analog signal wiring from high voltage power cables.
Precautions for Use Cut off power of field instruments before wiring modification. Check terminal screw tightness in regular cabinet inspection. Do not apply overvoltage to signal terminals. Keep contact pins free from dust and metal debris. Do not modify internal circuit of terminal assembly.
