The Emerson KJ3221X1-BA3 Analog Output Module provides precise current signal transmission for DeltaV systems. Designed for robust process automation, it ensures accurate control of actuators, valves, and other field devices requiring analog output signals.
Key Technical Specifications
Module Type: Analog Output (AO)
Signal Range: 4–20 mA output (typical)
Local Bus Power: 12 VDC (standard for AO modules)
Operating Temperature: -40 °C to +70 °C
Shock Resistance: 10 g half-sine wave, 11 ms duration
Vibration Endurance:
1 mm peak-to-peak from 2 to 13.2 Hz
0.7 g from 13.2 to 150 Hz
Airborne Contaminants Compliance: ISA-S71.04-1985 Class G3
Relative Humidity: 5–95% non-condensing
Application Scenarios
This AO module is widely used in chemical plants, oil & gas facilities, and power generation systems where precise analog control is required. It is ideal for driving control valves, actuators, and other devices that rely on stable 4–20 mA signals.
FAQ
Q: What is the primary function of the KJ3221X1-BA3? A: It provides analog output signals (typically 4–20 mA) to control field devices such as valves and actuators.
Q: Is it suitable for harsh environments? A: Yes, it operates across extreme temperatures and complies with Class G3 airborne contaminant standards.
Q: How does it compare to analog input modules? A: Unlike AI modules that measure signals, the AO module transmits control signals to field devices, enabling precise process regulation.
