The MTT MS3001 is a terminal block type temperature transmitter that converts a thermocouple signal into a standard, isolated DC output. It covers all 8 standard thermocouple types – K, J, E, T, B, R, S, and N – so one unit can handle most thermocouple inputs on site.
Output is configurable to the usual ranges: 4~20mA, 0~20mA, 1~5V, 0~5V, 0~10V, 0~10mV, plus bipolar options (±10V, ±5V, ±1V) and 0~1V, 0~100mV, so it can match whatever your PLC or DCS is already set up to read.
Input, output, and power are fully isolated from each other. This isolation is what keeps ground loops and electrical noise – from VFDs, welding equipment, and similar sources – from corrupting your reading on long cable runs. Cold junction compensation is built in, and zero and span are field-adjustable, so technicians can trim the calibration on site without extra tools.
If the thermocouple fails open, burnout protection drives the output to a known, safe state (upscale as standard, with a downscale option) instead of leaving the signal to float. Standard response time is 160ms; a high-speed version responding in 10ms is also available for faster processes.
Power supply is 24V DC or 12V DC. Note that the 12V DC version is excluded from CE marking – worth checking if CE compliance matters for your project. The unit mounts on DIN rail, right at the terminal block where the thermocouple wiring lands, keeping the transmitter close to the sensor.
- Function: converts thermocouple input into a commonly used isolated DC signal
- Input: Thermocouple types K, E, J, T, B, R, S, N (and others)
- Output: 4~20mA, 0~20mA, 1~5V, 0~5V, 0~10V, 0~10mV, ±10V, ±5V, ±1V, 0~1V, 0~100mV (and other ranges)
- Response time: 160ms max standard; high-speed response version 10ms max
- Power supply: 24V DC or 12V DC (12V DC version excluded from CE marking)
- Isolation: input, output, and power mutually isolated
- Cold junction compensation built in
- Field-adjustable zero and span
- Burnout protection: upscale as standard (downscale optional)
- Mounting: terminal block type, DIN rail
- Standards: CE* (*except 12V DC power version), RoHS
Frequently asked questions
What is the MTT MS3001 used for? It converts a raw thermocouple signal into a standard, isolated DC signal (such as 4~20mA or 0~10V) that a PLC, DCS, or data logger can read directly, while also breaking ground loops and rejecting electrical noise.
Can the MS3001 be used with any thermocouple type? Yes, it supports all 8 standard types – K, E, J, T, B, R, S, N – but the input range must be specified when ordering, since it’s not user-switchable in the field.
What’s the difference between the MS3001 and the MS3002? The MS3001 takes a thermocouple input; the MS3002 is the RTD version (Pt100Ω and similar). They’re not interchangeable, so confirm which sensor type you actually have before ordering.
Does the MS3001 need a separate power supply? Yes, it needs an external 24V DC or 12V DC supply – it’s not loop-powered like MTT’s MS3064 isolator.
Download MTT MS3001 Terminal Block Type Thermocouple Temperature Transmitter information here
Datasheet: MS3001 Spec Sheet (PDF)
Manual: MS3000 Series User’s Manual (PDF)
