Product Details
Configured for signal conditioning and intrinsic safety isolation in process control networks, the Honeywell 51192097-200 (MTL4045C Isolating Driver) provides direct physical/electrical execution. It drives smart I/P converters, process control valves, and field positioners within Honeywell Experion and TDC 3000 systems.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 51192097-200 (MTL4045C) |
| Brand | Honeywell / MTL |
| Origin | UK |
| Weight | 0.17 kg (0.37 lbs) |
| Dimensions | 16.0 mm x 110.0 mm x 105.0 mm |
| Operating Temp | -20 deg C to +60 deg C |
| Power Consumption | 1.4 W at 24 VDC |
| Input Signal | 4-20 mA from DCS controller card |
| Output Signal | 4-20 mA into hazardous area load (up to 700 ohms) |
| Communication | Bi-directional HART pass-through |
| Module Type | Intrinsic safety galvonic isolator driver |
4-20 mA HART Loop Protocol & Channel-to-Channel Isolation
The MTL4045C isolating driver delivers galvanic isolation between safe-area system control channels and field instruments located in hazardous processing zones. Integrated high-frequency response circuits support bi-directional HART loop protocol pass-through, permitting handheld communicators or DCS asset management software to reconfigure field positioners without signal attenuation. Galvanic channel-to-channel isolation eliminates ground loop currents and protects sensitive DCS analog output cards against severe field line surges.
Frequently Asked Questions
Q: Can the MTL4045C isolating driver be inserted or removed while the backplane is energized?
A: Yes. The module features safe-area plug-in connector pins designed for live-insertion and removal without disturbing adjacent backplane communication channels.
Q: Does the MTL4045C pass HART digital calibration signals in both directions?
A: Yes. The internal bandwidth accommodates bidirectional HART digital frequency shift keying (FSK) signals superimposed on the 4-20 mA analog control current loop.
Field Installation Guidelines
- Backplane Mounting: Align the module bottom connector with the backplane slot guide and press firmly until the locking latch clips into place.
- Hazardous Area Wiring: Terminate hazardous area output cables to dedicated IS terminals, maintaining strict separation from non-IS safe-area signal lines.
- Shield Earthing: Connect field cable shields to the designated system earth bar at one point only to prevent ground loops.
- Thermal Spacing: Ensure cabinet ambient temperature remains within the -20 deg C to +60 deg C operating envelope by maintaining unrestricted vertical airflow across the backplane assembly.
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.





























