MTT MS3706 Slim Plug-In Strain Gauge Transmitter

The MTT MS3706 is a slim plug-in strain gauge transmitter that powers a strain gauge, load cell, or pressure sensor bridge, reads its low-level millivolt output, and converts it into one or two isolated DC outputs suitable for standard control and monitoring equipment. Built-in bridge excitation removes the need for a separate power supply for the sensor, simplifying wiring in weighing, force-measurement, and pressure-sensing applications.

Where a dual-output configuration is used, both outputs stay isolated from each other, the input, and the power supply, letting one bridge sensor feed a control loop and an independent monitoring or logging system at the same time. Like the rest of the plug-in transmitter range, the MS3706 clips into its own socket base so the unit can be swapped for calibration or replacement in seconds without disturbing the field wiring, and flexible AC or DC power plus wall or DIN rail mounting make it easy to fit into an existing panel.

Input TypesStrain gauge, load cell, or pressure sensor bridge
Input Range-200mV to +200mV DC
Input Span5mV to 400mV
Bridge Excitation5V DC (120Ω bridge) or 10V DC (350Ω bridge)
Maximum Input Voltage30V DC continuous
Output0-20mA DC, 4-20mA DC, or 10mV to 20V DC (single or isolated dual output)
Output LoadUp to 750Ω for a single 4-20mA output; 550Ω/350Ω for dual outputs
IsolationIsolation between input, Output 1, Output 2, power, and ground
Power Supply100-240V AC (7.0VA max), 24V DC (2.1-2.4W), or 100-240V DC (7.2-8.4W)
AccuracyBetter than ±0.1% of span (at 25°C±5°C)
Response Time85ms maximum (0-90%)
Temperature Effect±0.2% of span per 10°C change
CMRRMinimum 100dB
Insulation Resistance100MΩ minimum at 500V DC
Dielectric Strength2000V AC for one minute
HousingABS resin (UL 94V-0)
Dimensions (W x H x D)29mm x 86mm x 125mm
WeightMain unit 120g; socket 80g
MountingWall or DIN rail mounting, plug-in socket base
Operating Temperature-5 to 55°C ambient

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

Datasheet: MTT_SpecSheet1_MS3706_Rev251_E

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