Honeywell TC-OAH061 DCS Control Module 0-21mA Range
Manufacturer: Honeywell
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Part Number: TC-OAHO61
Condition：New with Original Package
Product Type: Honeywell Experion PKS
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The Honeywell TC-OAH061 functions as a high-performance analog output interface within the Experion Process Knowledge System (PKS) and associated Distributed Control Systems (DCS). This module converts digital control commands into precise 0 to 21.0 mA analog signals to drive critical field actuators, including control valves, variable speed pumps, and heavy-duty drives. We supply this unit as 100% brand new and original, ensuring the sub-millisecond signal accuracy required for tight process loop control in volatile industrial environments.
Technical Specifications
| Parameter | Specification Details |
| Model Number | TC-OAH061 |
| Module Type | Isolated Analog Output (AO) |
| Channel Count | 6 Galvanically Isolated Channels |
| Output Range | 0 to 21.0 mA (Supports 4-20 mA standard) |
| Resolution | 13 Bits across 21 mA |
| Calibrated Accuracy | Better than ±0.1% at 25°C |
| Module Update Rate | 25 ms (all channels) |
| Isolation Voltage | 2546 VDC (Channel-to-Channel & User-to-System) |
| RFI Immunity | < 2.0% error at 10 V/m (27 to 1000 MHz) |
| Power Dissipation | 6.7 W Maximum |
| Terminal Block | TC-TBNH (20-position) |
Engineering Advantages
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Superior Galvanic Isolation: The TC-OAH061 features individual channel-to-channel isolation tested at 2546 VDC. This prevents ground loops and ensures that a fault on one field device does not propagate to adjacent channels or the backplane, maintaining overall system integrity.
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Rapid Process Response: With a 25 ms update rate for all channels simultaneously, this module facilitates real-time control of fast-acting valves. This speed minimizes overshoot and oscillation in high-pressure or high-flow loops.
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Robust Signal Integrity: Integrated RFI immunity shields the module from electromagnetic interference common in motor control centers and turbine halls. Even in environments with 10 V/m field strength, the module maintains an error rate below 2.0%.
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High-Efficiency Thermal Design: Despite driving six independent current loops, the module dissipates only 6.7 W of power. This low thermal footprint prevents heat buildup in high-density DCS cabinets, extending the service life of neighboring electronic components.
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Hot-Swap Functionality: Maintenance teams can replace the TC-OAH061 without powering down the system rack, significantly reducing Mean Time to Repair (MTTR) and eliminating unnecessary production downtime.
FAQs
Q: Does the TC-OAH061 require a specific terminal block for wiring?
A: Yes, this module utilizes the TC-TBNH 20-position terminal block. Ensure the terminal block is correctly seated to maintain the 2546 VDC isolation rating.
Q: Can I configure individual channels for different current ranges?
A: The module supports a global hardware range of 0 to 21.0 mA. You can scale this within your Experion PKS software to standard 4-20 mA or 0-20 mA increments depending on your actuator requirements.
Q: How does the module handle output overvoltage?
A: The TC-OAH061 includes continuous overvoltage protection rated at 24 VAC/VDC at room temperature. This protects the internal 13-bit DAC from back-EMF or accidental cross-wiring in the field.
Q: Is this unit new or refurbished stock?
A: Every TC-OAH061 we provide is 100% brand new and factory-sealed. We do not sell refurbished or "new-old-stock" parts for mission-critical Experion PKS applications.