1. High-Precision Signal Conditioning for Industrial Process
Control
The MTL4641 is a single-channel smart transmitter repeater power
supply engineered for critical industrial applications, designed to
energize 2- or 3-wire 4-20mA transmitters while replicating the
signal in a galvanically isolated floating circuit. With a compact
DIN-rail mountable design (20cm x 20cm x 3cm) and low power
consumption (<1W), it optimizes panel space in process control
systems. The module features full galvanic isolation between input, output, and power channels, providing robust
protection against ground loops, voltage transients, and
electromagnetic interference (EMI). Its NAMUR-compliant input ensures seamless integration with inductive sensors and pressure
transmitters, while the floating output supports direct connection
to PLC/DCS analog input modules without signal degradation. Unlike
competitor solutions like Pepperl+Fuchs’ KFD2-SCD2-EX1, the MTL4641
eliminates the need for external power supplies by deriving energy
directly from the 24V DC loop, simplifying wiring and reducing
installation costs.
2. Hazardous Area Compliance with Advanced Fault Detection
Certified to ATEX/IECEx standards for Zone 2/22 environments
(pending official documentation), the MTL4641 delivers reliable
performance in potentially explosive atmospheres. Its line fault detection (LFD) mechanism identifies open circuits (<50µA) or short circuits
(<100Ω) in field wiring, triggering LED indicators and
deactivating the output to prevent unsafe conditions. The module’s
**adjustable hysteresis of 200µA** minimizes false triggers by
activating outputs at >2.1mA and deactivating below 1.2mA,
critical for applications like chemical processing or oil refining
where precision is non-negotiable. Compared to Siemens’
7ML1201-1EB00 isolators, the MTL4641 integrates phase reversal control via side-mounted switches, allowing rapid adaptation to sensor
polarity changes without reconfiguration. Additionally, its wide
input voltage range (18-35V DC) ensures compatibility with legacy
and modern field devices, reducing inventory complexity.
3. Versatile Integration for Smart Industrial Networks
The MTL4641 supports HART protocol communication (compatible with AMS Device Manager), enabling bidirectional data
exchange with smart transmitters for diagnostics, calibration, and
predictive maintenance. Its dual redundant outputs provide seamless failover in redundant control systems, while the
changeover relay contacts accommodate both normally open and closed
circuit configurations. The module’s extended operating temperature
range (-20°C to +60°C) and vibration resistance (IEC 60068-2-6)
ensure reliable performance in extreme industrial environments.
Unlike traditional isolators requiring separate termination blocks,
the MTL4641 features plug-and-play terminals for quick field wiring, streamlining commissioning. This
combination of advanced signal conditioning, rugged construction,
and smart communication capabilities positions the MTL4641 as a
cost-effective solution for industries ranging from pharmaceuticals
to offshore energy production, where safety, scalability, and
real-time data integration are essential.
| Category | Specification |
|---|
| Certifications | - ATEX/IECEx Zone 2/22 (pending official documentation)1217
- EN 61010-1:2010 / EN 61010-2-201:2018 compliance2
- RoHS Directive 2011/65/EU2 |
| Channels | Single-channel smart transmitter repeater power supply for 2- or
3-wire 4-20mA transmitters311. |
| Input Parameters | - Transmitter Power: 7–9V DC (derived from 24V DC loop, no external
supply required)3
- Signal Range: 4–20mA input from field devices
- Impedance: 1 kΩ ±10% (input resistance)3 |
| Output Parameters | - Isolated Output: Floating 4–20mA signal for PLC/DCS input modules3
- Load Compatibility: ≤500Ω at 24V DC
- Output Voltage: 24V DC (regulated supply for transmitters)20 |
| Isolation Features | - Galvanic Isolation: 250V AC between input/output/power channels110
- EMI/RFI Protection: Compliant with EN 61326-1:20132 |
| Power Requirements | - Supply Voltage: 18–35V DC (via backplane or external supply)20
- Power Consumption: <1W (low-power design for energy-efficient
operation)13 |
| Mechanical Specifications | - Mounting: 35mm DIN rail (compatible with MTL4500/5500 series
backplanes)1022
- Dimensions: 16mm (W) × 100mm (H) × 120mm (D) (estimated based on
MTL4600 series)22
- Weight: <0.15kg (lightweight construction) |
| Environmental Conditions | - Operating Temperature: -20°C to +60°C (industrial-grade
resilience)110
- Humidity: 5–95% RH (non-condensing)
- Vibration/Shock Resistance: Compliant with IEC 60068-2-6/291 |
| Interface Compatibility | - Field Devices: Inductive proximity switches, pressure
transmitters, and NAMUR-compliant sensors310
- Control Systems: Honeywell C300, Schneider Modicon, Yokogawa
CS3000 (direct integration)10 |
| Differentiating Features | - Loop-Powered Design: Eliminates external power sources for
simplified wiring3
- Plug-and-Play Terminals: Quick field wiring with screwless
connections10
- HART Protocol Ready: Supports bidirectional communication with
smart transmitters (optional configuration) |
Packaging & Shipping
Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading
global supplier of control system components. We specialize in
control systems and drives.
more about us , u can view our official
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