Product Details
Configured for precision resistance temperature detection in MasterLogic-200 PLC networks, the Honeywell 2MLF-RD4A (2MLF-RD4A Resistance Temperature Detector Input Module) provides direct physical/electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 2MLF-RD4A |
| Brand | Honeywell |
| Origin | South Korea |
| Weight | 0.15 kg |
| Dimensions | Standard MasterLogic I/O Module Form Factor |
| Operating Temp | 0 to 55 deg C |
| Power Consumption | 450 mA at 5 VDC (backplane bus load) |
| Input Channels | 4 channels |
| Conversion Speed | 40 ms / channel |
| Accuracy | +/-0.2% or less (at 25 deg C), +/-0.3% or less (at 0 to 55 deg C) |
| Wiring Method | 3-wire system |
| Terminal Connection | 18-point terminal block |
Process Control & Resistance Signal Conditioning
The 2MLF-RD4A module executes analog-to-digital signal conversion across four dedicated RTD input channels. Internal channel-to-channel isolation hardware suppresses common-mode noise and ground loop currents across field-side sensor lines. To maintain high process accuracy, the module incorporates dynamic excitation current loops and cold junction compensation (CJC) reference algorithms for thermal signal stability across the 0 to 55 deg C ambient operating range.
Frequently Asked Questions
Q: What sensor wiring configuration is supported by the 2MLF-RD4A terminal block?
A: The module directly supports 3-wire RTD sensor configurations connected to the removable 18-point terminal block to compensate for lead-wire resistance.
Q: What is the backplane power draw for this RTD module?
A: The 2MLF-RD4A draws a nominal 450 mA current from the internal 5 VDC backplane power bus.
Field Installation Guidelines
- Power down the PLC base rack prior to installing or removing the 2MLF-RD4A module to prevent electrical damage to backplane contacts.
- Align the module with the base rack guide slots and press firmly until the top and bottom retaining latches lock into position.
- Wire the RTD field elements using shielded 3-wire cables, terminating the shield braid at a single earth ground bar within the control enclosure.
- Ensure signal wiring is physically separated from high-voltage AC power lines and drive cables to prevent inductive coupling and analog measurement jitter.
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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