KJ3222X1-BA2 Emerson AI 8 CH 4-20mA HART Card Series 2

Description

The KJ3222X1-BA2 is an 8-channel analog input (AI) card from Emerson’s DeltaV Series 2, designed for industrial automation systems. It supports 4-20mA HART communication, enabling two-way data exchange for device status reporting, variable reporting, and HART pass-through request/response functionality. Key specifications include a standard signal range of 4-20mA, a full-scale signal range of 1-22.5mA, and an LED-indicated valid range of 0.75-23mA, with over-range detection capabilities. Each channel features 1500VDC isolation, verified via factory testing, to protect the system from electrical interference.

Performance metrics include 16-bit resolution, 0.1% accuracy over the operating temperature range, and 0.05% repeatability relative to the measurement range. Attenuation frequencies are 2.7Hz at -3dB and half the sampling frequency at -20.5dB. Power requirements are 300mA at 24VDC (+/-10%) for the entire card, with a maximum per-channel field current of 30mA (Series 2 standard). This card is engineered for reliable integration into distributed control systems, supporting precise monitoring of industrial process variables from field devices.