MTT MS3701 Thermocouple Signal Conditioner (Plug-in Base Socket)

The MTT MS3701 is a slim plug-in thermocouple temperature transmitter that reads a thermocouple signal, applies cold junction compensation and linearization, and delivers it as one or two isolated DC outputs. Support for the full range of common thermocouple types means a single model can be configured for K, E, J, T, B, R, S, or N type sensors, simplifying spares and stock across a plant with mixed sensor types.

Because it plugs into its own separate socket base, the MS3701 can be pulled and replaced in seconds for calibration or maintenance without rewiring the field cabling underneath it, minimising downtime on process lines and utility systems. Where the dual-output configuration is used, the two outputs stay isolated from each other, from the input, and from the power supply, so one temperature reading can safely drive a control loop and a separate monitoring or logging system at the same time. Flexible AC or DC power options and wall or DIN rail mounting let it fit into almost any existing panel design.

Input TypesThermocouple types K, E, J, T, B, R, S, N (temperature range depends on type, e.g. Type K: 0-1350°C)
Input Resistance1MΩ minimum, with or without power
Cold Junction Compensation Error±0.5°C maximum (25°C±15°C)
Output0-20mA DC, 4-20mA DC, or 10mV to 20V DC (single or isolated dual output)
Isolation4-way isolation between input, Output 1, Output 2, and power
Power Supply100-240V AC (50/60Hz), 24V DC ±10%, or 100-240V DC
Power SensitivityBetter than ±0.1% of span
AccuracyBetter than ±(0.1% of span + 0.5°C + linearity error)
Response Time160ms maximum (0-90%)
CMRRMinimum 100dB
Insulation Resistance100MΩ minimum at 500V DC
Dielectric Strength2000V AC for one minute
Dimensions (W x H x D)29mm x 86mm x 125mm
WeightMain unit up to 120g; socket up to 80g
MountingWall or DIN rail mounting, plug-in socket base
TerminalsM3.5 screw terminals
Operating Temperature-5 to 55°C ambient (storage: -10 to 60°C)
Operating Humidity5-90% RH, non-condensing

Download MTT MS3701 Thermocouple Signal Conditioner information here

Datasheet: MTT_SpecSheet1_MS3701_Rev310_E

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