Emerson KJ3221X1-BA1 AO HART Redundant Card

Description

Emerson KJ3221X1-BA1 AO HART Redundant Card is a Series 2 analog output card designed for industrial automation systems, featuring 4-20mA output and HART communication capabilities. It supports redundant configurations, making it suitable for critical process control applications that require high reliability.

Key technical specifications include a standard signal range of 4 to 20mA, a full-scale signal range of 1 to 22.5mA, and an LED indicator effective range of 0.75 to 23mA. At a standard voltage of 12VDC, the card has a local bus current of 100mA (standard) and 150mA (maximum) for base models, with Series 2 variants offering 175mA (standard) and 250mA (maximum) local bus current. Operating with a 24VDC (+/-10%) field power supply, the card has a total field current capacity of 300mA, with each channel supporting a maximum field current of 32mA for base models and 30mA for Series 2 units.

Performance features include 16-bit resolution, an accuracy of 0.1% of the measurement range over temperature, and a repeatability of 0.05% of the measurement range. Attenuation frequencies are 2.7Hz at -3dB and half the sampling frequency at -20.5dB. HART communication functions include pass-through request/response, variable reporting, and field device status reporting, with a standard HART scan time of 600 to 800ms per enabled channel. A 2.0A fuse is available for single-mode operation.