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MT2187 RTD input, two-wire temperature transmitter (isolated)
· Pt100, Cu50 and other RTD inputs, 4~20mA output, and electrical isolation between input and output. Adjust the potentiometer with zero and full scale calibration.
· MT2187 two-wire temperature transmitter, thermal resistance signal input, after isolation, converted into a standard 4 ~ 20 mA output signal.
· Electrical isolation between input and output.
· Adjust the potentiometer with zero and full scale calibration.
· Two-wire transmission mode (The power supply does not output the signal as a common two wires).
· Compact structure design, which can be directly installed in the standard junction box of the temperature sensor head to form an integrated structure.
Model / selection table:
Option |
Model and code |
Description |
Model |
MT2187 |
RTD input, two-wire temperature transmitter (isolated) |
Service Code |
-QC9A |
Product Service Code |
Note: |
Technical data:
Product structure:
Shell size |
Φ46×20 (mm) |
Housing Material / Color |
PC (Polycarbonate) / Lake Blue |
Whole machine weight |
About 40 grams |
Degree of protection |
IP00 / IP54 (determination of sensor protection level) |
Shock-resistant vibration |
4g/2 150Hz |
Environmental conditions:
Ambient temperature |
-20~+70℃ |
Ambient temperature (storage or operation) |
-40~+100℃ |
Condensation |
Allowed |
Input:
Input signal |
Pt100、Cu50 and other thermal resistance |
Measurement range |
Depends on sensor and input signal type |
Input signal type / measuring range |
See the table below |
Sensor type and measuring range table:
Thermal resistance sensor type (index number) |
Measurement range |
Minimum range |
Error (whichever is greater) |
Pt100 |
-200~850℃ |
50℃ |
0.2℃ or 0.1% |
Cu50 |
-50~150℃ |
50℃ |
0.4℃ or 0.1% |
Output:
Current output |
4~20mA |
Load resistance |
Max (power - 12V) / 22mA |
Output ripple |
<10mV p-p |
Power supply:
Output loop supply voltage |
12~30VDC (reverse connection protection) |
General parameters:
Standard Accuracy |
Typical values±0.1%FS (See temperature sensor type, range and measurement error table) |
Thermal resistance wire compensation |
±0.1% (0~10Ω) |
Thermistor input wire resistance effect |
Thermal resistance three-wire input (≤10Ω/line), <±0.005 %/Ω |
Load change effect |
±0.1% (allowable load range) |
Power change impact |
0.01%/V |
Temperature drift |
0.005%FS/℃ |
Response time |
1.5S |
Stabilization time |
<10s |
Long-term stability |
0.1 ° C / year or 0.05% / year, take the larger |
Electrical isolation |
Between input and output: 1500V AC RMS / 1 minute |
Electromagnetic compatibility (EMC) |
In accordance with IEC 61326-1 (GB/T 18268) |
Field device suitable for connection |
Thermal resistance temperature sensor |
Mounting method |
Mounted in the standard junction box of the temperature sensor head (according to DIN 43 729 Form B) |
Wiring parameters:
Rigid (or flexible) wire cross section |
Suitable for single or multi-core wire with a cross-sectional area of up to 1.75mm2. |
Connection type |
M3 screw fastening connection |
Screw torque |
up to 0.8Nm |
Certification/standards:
CE certification |
Meet CE standards |
Product diagram / terminal wiring diagram: