Honeywell 2MLF-AC8A 8-Channel Analog Current Input Module

SKU 2MLF-AC8A

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12-month warranty
Free returns within 30 days

Manufacturer: Honeywell
Product No.: 2MLF-AC8A
Country of origin:United States
Product Type: Analog Input Modules
Payment: T/T, Western Union
Weight: 2000g
Shipping port: Xiamen
Warranty: 12 months

Description

Designed for direct integration into industrial control architectures, the Honeywell 2MLF-AC8A functions as a high-density, 8-channel analog current input interface. This module translates external analog process signals into precise digital values for the host controller, offering rapid processing with a conversion speed of 250 microseconds per channel. Built to maintain signal fidelity in electrically noisy environments, the module incorporates robust photo-coupler isolation between the field input terminals and the internal PLC backplane logic.

Key Features

8 High-Density Channels: Allows simultaneous monitoring of up to eight independent current loops.
Fast Conversion Rate: Accomplishes analog-to-digital processing within 250 microseconds per active channel.
Optoelectronic Isolation: Safe photo-coupler isolation protects sensitive control logic from field-side electrical surges.
Standard 18-Point Terminal: Employs a physical 18-point connection block for secure, reliable field wiring.

Applications

Continuous process monitoring in water and wastewater treatment facilities.
Integrated pressure, flow, and temperature transmitter feedback loops.
Petrochemical and chemical processing plant telemetry acquisition.
Factory automation systems requiring high-speed analog signal tracking.

Technical Specifications

Parameter	Value / Specification
Manufacturer	Honeywell
Model Number	2MLF-AC8A
Module Type	Analog Current Input Module
Input Channels	8 Channels / 1 Module
Max Conversion Speed	250 us / channel
Accuracy (at 25 degC)	+/-0.2% or less (within 25 degC +/-5 degC)
Accuracy (Full Temp Range)	+/-0.3% or less (0 to 55 degC)
Absolute Maximum Input	+/-30 mA
Isolation Method	Photo-coupler isolation (Terminals to PLC power); No channel-to-channel isolation
Connection Method	18-point terminal block
I/O Address Allocation	Fixed: 64 points / Variable: 16 points
Internal Current Consumption	420 mA @ 5 VDC
Net Weight	0.14 kg
Shipping Weight	2.0 kg (packaged)

Installation Guidelines

CRITICAL WARNING

Ensure all primary AC and secondary DC power sources feed-in to the system rack are completely de-energized before mounting, unmounting, or wiring the module. Failure to isolate power can result in terminal damage, logic errors, or localized electrical shock hazards.

1

Align the module's lower locking tab with the designated slot on the PLC backplane rack.

2

Carefully pivot the module upward, pressing it firmly into the backplane connector until you hear the retention clip click securely into place.

3

Connect analog field wiring to the 18-point terminal assembly, keeping low-voltage current signals physically routed away from high-voltage motor control lines to prevent induced electromagnetic noise.

FAQ

Is there channel-to-channel isolation on the 2MLF-AC8A?

No. While there is robust photo-coupler isolation between the physical input terminals and the internal PLC logic power, the individual current input channels share a common ground connection and are not isolated from one another.

What happens if a current input channel exceeds the standard operating limits?

The absolute maximum input rating for this module is +/-30 mA. Exceeding this limit can cause permanent thermal damage to the internal input circuit and precision shunt resistors.

What is the physical connection type for external field sensors?

The module utilizes an 18-point terminal block system to secure wiring for the 8 positive and negative analog current channels plus auxiliary termination grounds.

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Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
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Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

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Product Image	Model Number / Title	Condition	Availability	Action
	Allen-Bradley 1769-IF8 Compact I/O Analog Input Module	Original New	In Stock	View Details

Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

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