MTL 7706+ Field-Mounted HART Isolator | 4-20mA+HART, Loop Power, IP66/68, ATEX/CSA

MTL 7706+ Field-Mounted HART Isolator | 4-20mA+HART, Loop Power, IP66/68, ATEX/CSA

MTL 7706+ HART isolator specifications. Rugged field-mount, 4-20mA+HART, 24V DC loop power, IP66/68, hazardous area, remote diagnostics.

Product Overview

The MTL 7706+ is a rugged, field-mountable HART isolator designed for installation in Zone 2/22 or Division 2 hazardous areas. It provides loop power to 2-wire HART transmitters, accepts the 4-20mA signal with HART digital communication, and delivers an isolated 4-20mA+HART output to the safe area. Housed in a robust, weatherproof enclosure, it is designed for direct mounting in harsh outdoor or industrial environments, enabling signal conditioning and diagnostics at the field device.

Technical Specifications

Key Features

• Rugged Field-Mount Design:​ IP66/IP68 rated enclosure for harsh environments

• Integrated Loop Power:​ Supplies 24V DC to power 2-wire HART transmitters

• HART Protocol Support:​ Full bidirectional HART communication

• High Accuracy:​ ±0.05% analog signal accuracy

• Wide Temperature Range:​ Operates from -40°C to +70°C

• Optical Configuration:​ Infrared optical port for wireless configuration

• Advanced Diagnostics:​ Monitors loop current, voltage, and HART communication

• Visual Status:​ LEDs for power, HART activity, and fault indication

• Reduced Wiring:​ Installs near transmitter, reducing long analog signal runs

• Weatherproof:​ Suitable for outdoor, wet, and dusty locations

Applications

• Powering and isolating HART transmitters in Zone 2/Div 2 areas

• Remote pressure, temperature, and level transmitter installations

• Tank farms and pipeline monitoring

• Offshore platforms and oil & gas fields

• Water and wastewater treatment plants

• Remote asset monitoring and diagnostics

Important Notes

1. Certified for Zone 2/Div 2; for Zone 1/Div 1, an IS barrier is required upstream

2. Provides loop power, eliminating the need for a separate field IS power supply

3. Configuration is performed via infrared optical port, no physical connection needed

4. HART communication requires 250Ω minimum loop resistance

5. Ensure proper sealing of cable glands for maintained IP rating

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About ACH

Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL and EMERSON to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.

Frequently Ask & Questions

Are preferential prices available?

Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.

Are the Products Genuine OEM Units?

Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.

How will you arrange shipment?

We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.

What is the warranty of goods?

One-year Warranty.

How long is the logistics cycle of the product?

Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.