MTT MS3706 Slim Plug-In Strain Gauge Transmitter

The MS3706 is an industrial-grade, slim plug-in strain gauge transmitter designed to supply stable excitation voltage to strain-gauge type pressure sensors, load cells, and millivolt transducers. It converts small bridge output signals into highly stable, standard process current or voltage signals, providing an isolated single or dual output for modern data acquisition and factory control systems. To fit high-density instrumentation panels, the transmitter is constructed in a compact 29mm wide housing optimized for wall or DIN rail mounting. Built with an exceptional 4-way galvanic isolation barrier rated for a 2000V AC dielectric strength, the MS3706 separates the input, output channels, and operating power to eliminate ground loop propagation, prevent signal attenuation, and maximize common-mode noise rejection in demanding factory automation environments.

Key Product Features

  • Onboard Bridge Excitation Supply: Delivers precision, stable excitation voltages including 5V DC or 10V DC to drive low-impedance strain gauge bridges and load cells.
  • Highly Flexible Analog Outputs: Configurable with dual independent analog outputs, providing standard industrial current/voltage ranges such as 4-20mA DC or 0-10V DC.
  • Premium Galvanic Isolation: Complete isolation barrier rated at 2000V AC dielectric strength for 1 minute among input, output, power, and ground networks.
  • High Signal Accuracy and Linearity: Delivers an outstanding process accuracy rating better than ±0.1% of span (at 25°C ±5°C) with a standard response time of 85ms maximum.
  • Rugged Enclosure & Quality Materials: Housed in a flame-retardant UL 94V-0 rated ABS resin enclosure featuring nickel-plated steel M3.5 screw terminals and a premium HumiSeal® polyurethane conformal coating.
Technical Specifications
● POWER SECTION
Power Requirements100 to 240V AC: 85 to 264V AC (50 to 60Hz / 47 to 63Hz)
24V DC: 24V DC ±10%
100 to 240V DC: 85 to 264V DC
Power SensitivityBetter than ±0.1% of span for each power supply range.
Power Line Fuse160mA fuse is installed as standard.
Power Consumption
Output Type100-240V AC24V DC100-240V DC
Single Output7.0VA max2.1W max7.2W max
Dual Output7.0VA max2.4W max8.4W max
● INPUT SECTION
Input Options (DC)Standard Millivolt Inputs: 0 to 10mV (Code 1) | 0 to 100mV (Code 2)
Standard Bipolar Inputs: ±10mV (Code 1W) | ±100mV (Code 2W)
Custom Range (Code 0): Available between -200mV and 200mV
(Min. span: 5mV, Max. span: 400mV, Bias: -100 to 100%).
Bridge Excitation Voltage5V DC (Code E2): Suitable for 120Ω min. bridge resistance.
10V DC (Code E3): Suitable for 350Ω min. bridge resistance.
Custom Voltage (Code 0): Available from 3 to 10V DC.
Input ResistancePowered State: 1MΩ minimum.
Unpowered State: 10kΩ minimum.
Maximum Allowable Input30V DC maximum, continuous.
● OUTPUT SECTION
Output Range OptionsCurrent (DC): 4 to 20mA (Code A) | 0 to 20mA (Code D) | Custom current range (Code Z).
Voltage (DC): 0-10mV, 0-100mV, 0-1V, 0-10V, 0-5V, 1-5V, ±1V, ±10V, ±5V, or Custom Voltage (Code 0).
*Note 1: When Output 1 is voltage, Output 2 cannot be configured as a current output.
*Note 2: For output currents smaller than 0.1mA, accuracy rating is not guaranteed.

Download MTT MS3706 Slim Plug-In Strain Gauge Transmitter information here

Datasheet: MTT_SpecSheet1_MS3706_Rev251_E
Manual:

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