The MTT MS3002 is a terminal block type temperature transmitter that converts an RTD signal into a standard, isolated DC output. It accepts Pt100Ω (-200 to +850°C), JPt100Ω (-200 to +500°C), Pt50Ω (-200 to +600°C), and Ni508.4Ω (-50 to +250°C) inputs, covering most RTD types used 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 what your PLC or DCS accepts. Excitation current is approximately 1mA, with lead wire resistance up to 200Ω per wire tolerated without affecting accuracy.
Input, output, and power are fully isolated from each other, which is what keeps ground loops and electrical noise from corrupting your reading on long cable runs. Zero and span are field-adjustable, so technicians can trim the calibration on site.
Standard response time is 170ms; a high-speed version responding in 10ms is also available for faster processes. Power supply is 24V DC or 12V DC – note 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 RTD wiring lands, keeping the transmitter close to the sensor.
- Function: converts RTD input into a commonly used isolated DC signal
- Input: RTD types Pt100Ω (-200 to +850°C), JPt100Ω (-200 to +500°C), Pt50Ω (-200 to +600°C), Ni508.4Ω (-50 to +250°C)
- Output: 4~20mA, 0~20mA, 1~5V, 0~5V, 0~10V, 0~10mV, ±10V, ±5V, ±1V, 0~1V, 0~100mV (and other ranges)
- Excitation current: approx. 1mA
- Lead wire resistance: 200Ω max per wire
- Response time: 170ms 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
- Field-adjustable zero and span
- Mounting: terminal block type, DIN rail
- Standards: CE* (*except 12V DC power version), RoHS
Frequently asked questions
What is the MTT MS3002 used for? It converts a raw RTD (resistance) 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 rejecting lead-wire and electrical noise error.
Can the MS3002 be used with any RTD type? It supports Pt100Ω, JPt100Ω, Pt50Ω, and Ni508.4Ω, but the exact input range must be specified at ordering, since it’s not field-switchable.
What’s the difference between the MS3002 and the MS3001? The MS3002 takes an RTD (resistance) input; the MS3001 takes a thermocouple input. They’re not interchangeable, so confirm which sensor type you actually have before ordering.
Does the MS3002 need a separate power supply? Yes, it needs an external 24V DC or 12V DC supply.
Download MTT MS3002 Terminal Block Type RTD Temperature Transmitter information here
Datasheet: MS3002 Spec Sheet (PDF)
Manual: MS3000 Series User’s Manual (PDF)
