Product Overview

The Honeywell TK-OAH061 is a high-precision 6-channel Analog Output (AO) module designed for Experion PKS and legacy TDC 3000 control systems. It delivers 4–20 mA current signals to drive field devices such as valve positioners, variable frequency drives (VFDs), and dampers. This version includes conformal coating, offering enhanced protection against moisture, dust, and corrosive environments. The unit is supplied as 100% Brand New Original equipment for reliable performance in demanding industrial applications.

Technical Specifications

Engineering Advantages

• Galvanic Channel Isolation: Each channel is isolated to prevent ground loops and isolate faults between channels and the controller.

• Corrosion Resistance: Conformal coating protects against humidity, chemical vapors, and salt spray, extending service life in harsh environments.

• Precise Actuator Modulation: High-resolution output ensures smooth and accurate control of final elements such as valves and drives.

• Reliable Loop Integrity: Maintains stable 4–20 mA signals under varying environmental conditions for deterministic control performance.

FAQs

What is the benefit of conformal coating?
It protects the module from moisture, dust, and corrosive gases, making it suitable for offshore, chemical, and refinery environments.

Does it support HART communication?
No, it is a standard analog output module. HART-enabled applications require a compatible AO module designed for HART signaling.

How does the module behave on controller failure?
It can be configured to hold the last output value or transition to a predefined safe state (e.g., 4 mA or 0 mA) via system configuration.

Is redundancy supported?
Yes, it can be used in redundant configurations with appropriate termination assemblies to ensure continuous and bumpless control of critical loops.