HART Valve Interface | Bi-directional Communication MTL4646Y

Description

MTL4646Y: HART Valve Controller Interface

The MTL4646Y connects your safe-area controller to HART valve positioners in hazardous locations. It drives current/pressure converters and other loads up to 800Ω. This module supports bi-directional HART communication and provides open-circuit detection for field wiring safety.

Technical Specifications

Brand: MTL
Model: 4646Y
Signal Range: 4-20mA
HART Bandwidth: 500Hz-10kHz
Max Load Resistance: 800Ω
Min Load Resistance: 90Ω
Output Resistance: >1MΩ
Under Range: 1mA
Over Range: 24mA
Accuracy: Better than 20μA at 20°C
Temperature Drift: <1.0μA/°C
Response Time: 100ms to within 200μA
Ripple: <40μA peak-to-peak
Power Consumption: 35mA at 24V
Power Dissipation: 0.8W at 24V
Open-circuit Detection: <0.5mA
Normal Operation: <6.0V
LED Indicator: Green power light
Communication: HART protocol
Termination: Screw terminals
Mounting: DIN rail compatible

Package Contents

1 x MTL4646Y interface module. Fast worldwide shipping via FedEx, UPS, or DHL.

Warranty Coverage

12-month warranty against defects. Reliable performance assurance.

Common Questions

• What types of valves does it work with?
  It works with HART-enabled valve positioners and current-to-pressure converters.
• Does it detect both open and short circuits?
  The MTL4646Y provides open-circuit detection only, no short-circuit detection.
• What is the maximum cable length supported?
  It can drive loads up to 800Ω, supporting significant cable runs.
• Can it handle signals below 4mA or above 20mA?
  Yes, it supports under-range (1mA) and over-range (24mA) signals.
• Is special software needed for HART communication?
  No, it transparently passes HART signals between controller and valve positioner.