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Honeywell MTL4045C Isolating Driver 51192097-200Honeywell MTL4045C Isolating Driver 51192097-200Honeywell MTL4045C Isolating Driver 51192097-200
Honeywell MTL4045C Isolating Driver 51192097-200
Honeywell MTL4045C Isolating Driver 51192097-200
Honeywell MTL4045C Isolating Driver 51192097-200

Honeywell MTL4045C Isolating Driver 51192097-200


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PRODUCT SKU : 51191697-200

PRODUCT TYPE : Isolating Drivers

PRODUCT VENDOR : Honeywell


  • 100% Genuine Parts – Risk-Free 30-Day Returns
  • 1-Year Warranty & Expert Support for Every Order

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

  1. Backplane Mounting: Align the module bottom connector with the backplane slot guide and press firmly until the locking latch clips into place.
  2. Hazardous Area Wiring: Terminate hazardous area output cables to dedicated IS terminals, maintaining strict separation from non-IS safe-area signal lines.
  3. Shield Earthing: Connect field cable shields to the designated system earth bar at one point only to prevent ground loops.
  4. 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.




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