Product Details
The Honeywell MC-PRHM01, also cataloged as the MC-PRHM01 51404109-175 Remote Hardened Low Level Multiplexer, operates as a dedicated hardware component for low-level analog signal acquisition and channel scanning within Honeywell Process Manager (PM/APM/HPM) I/O subsystems.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | MC-PRHM01 (51404109-175) |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.52 kg |
| Dimensions | 30 mm x 314 mm x 278 mm |
| Operating Temp | -40 to 70 deg C |
| Power Consumption | Powered via I/O link backplane supply |
| Module Type | Remote Hardened Low Level Multiplexer |
| Signal Processing | Low-level analog signal (TC, mV) multiplexing |
| Subsystem Compatibility | Honeywell High Performance Process Manager (HPM) / APM |
| Mounting | Standard Process Manager I/O File / Chassis |
Cold Junction Compensation and Channel-to-Channel Isolation
The MC-PRHM01 low-level multiplexer conditions microvolt-level inputs from thermocouples and millivolt transducers before routing multiplexed data across the I/O link bus. Precision internal cold junction compensation (CJC) circuits dynamically correct thermal electromotive force (EMF) offsets at terminal junction points. Integrated channel-to-channel isolation safeguards individual measurement paths against common-mode electrical noise, ground potential differentials, and external field interference typical of remote process control environments.
Frequently Asked Questions
Q: Does removing or inserting the MC-PRHM01 module during active node operation disturb adjacent I/O modules on the same link?
A: Live extraction requires adhering to slot isolation rules; removing the module drops signal acquisition for connected low-level channels but does not disrupt backplane communication across unassociated I/O file slots.
Q: How does the module handle cold junction compensation reference updates across wide ambient thermal changes?
A: On-board solid-state RTD sensors monitor terminal block temperatures continuously, providing immediate compensation coefficient updates to the analog-to-digital processing sub-circuit.
Field Installation Guidelines
- Inspect the card edge gold fingers and rear connector pins of the MC-PRHM01 module for physical distortion or debris before insertion.
- Align the module circuit board with the top and bottom card guide tracks of the designated I/O chassis slot.
- Push the module firmly into the slot until the backplane connectors seat completely and locking latches engage.
- Ensure thermocouple lead shields are grounded at a single point on the field termination assembly to prevent ground loops.
- Secure all field termination assembly (FTA) cable connectors to the front faceplate to ensure signal shield continuity and vibration resistance.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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