Emerson KJ3225X1-BK1 RTD/Resistance Input Card Specs

The KJ3225X1-BK1 RTD/resistance input card from Emerson measures temperature and resistance signals inside DeltaV control systems. This card converts sensor resistance into precise digital readings for the controller. Engineers select this card when they need accurate temperature monitoring and simple chassis installation.

Technical Specifications

Parameter	Specification
Product Model	KJ3225X1-BK1
Module Type	RTD/Resistance Input Card
Input Type	RTD and resistance sensing
Interface	Backplane connector, field wiring terminals
Mounting	DeltaV chassis slot
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 85°C
Weight	Approx. 0.26 kg
Dimensions	Approx. 160 mm × 98 mm × 30 mm
Energy Storage	On-board capacitors for excitation and filtering
Component Count	Multiple input channels per card

Interface and Signal Details

The KJ3225X1-BK1 links sensor leads to the chassis backplane through a dedicated connector. Screw terminals secure the wires and resist vibration during continuous plant operation. Therefore, technicians achieve firm terminations without soldering or adapter kits. The card occupies one chassis slot and draws power from the shared rail.

Physical and Environmental Parameters

The card measures roughly 160 mm by 98 mm by 30 mm and weighs about 0.26 kg. Its compact housing fits crowded cabinets and keeps panel layout efficient. Meanwhile, the 0°C to 60°C operating range covers typical control room conditions. The on-board filtering suppresses noise before signals reach the conversion stage.

Why This Card Matters

Plant teams value the KJ3225X1-BK1 for its accurate resistance sensing and easy servicing. The energy storage components keep readings stable during electrical interference events. As a result, measurement drift drops and calibration intervals extend. Technicians also appreciate the clear channel labeling and quick slot access.