MPT91 M1

Thermoregulator in a 48x48 box with two display for 4÷20mA, 0÷20mA, 0÷10V, J, K, S, and PT100.
Output PID or ON-OFF control with relay output. Optional 1 alarm relay output, analogue output and serial outputs.

The MPT91 M1 instrument model is a "single loop" temperature controller in a 48x48 container with the possibility to execute 3 programs of 8 steps each and servomotor control drive.

The MPT has an interface with thermoresistors and thermocouplings and analog inputs.

The management software allows instrument set-up directly from thekey-board; the control is by PID/ON-OFF together with "soft-start" and "self-tuning" functions for automatic acquisition of the control parameters.

The instrument may be ordered with the following options:

  • Bi-directional serial outputs with opto isolation (RS485 half duplex: ASCII and MODBUS protocols)
  • Tension and/or current output for motorized valve control or read-out output
  • Remote second setpoint selection.

Thermal stability: 50ppm/°C
Accuracy better than : 0.5%
Inputs: TC: J, K,S; RTD PT100; 0÷20mA; 4÷20mA; 0÷10V
Controls: PID, ON-OFF
Cold junction compensation: automatic
Analogue outputs features:

  • Outputs: 4÷20mA - 0÷20mA - 0÷10V
  • Max load for current output: 300Ω
  • Min. load for voltage output: 1KΩ
  • Resolution: 12 bit

Load. input 4÷20mA:
Load. input 0÷10V: 1MΩ
Relay output for alarms: 5A / 250Vac
Relay output for main control: 5A / 250 Vac
Power supply: 20÷30Vac/Vdc , 90÷260Vac/Vdc
Power absorption: 5 W
Max working temperature: 50 °C
Height digits: 8 mm read out (red) - 8mm set point (green)
Dimensions: 48x48 (96mm depth)
Mounting plate: 45,5 mm (h) x 45,5 mm (l)
Weight: 150 gr.


Position 1:

A: Main relay output
C: Main static output
F: Exchange relay output for main control (5A)

Position 2:

03: 1 alarm only with option A or C (servomotor control drive possibility)

Position 3:

OAP: Analogue outputs for motor valve control or read-out (if serial outputs is not request)
RSP: Remote setpoint (if serial outputs is not request)

Cod. 12: RS 422 optoisolated bi-directional
Cod. 13: RS 485 optoisolated bi-directional
Cod. 14: RS 232 optoisolated bi-directional


Fe/CO0÷600 °C
Ni/Cr-Ni0÷1200 °C
Pt/Pt-Rh10%0÷1710 °C
PT100 e0÷800 °C
PT100 r-40.0÷200.0 °C
thermoregulator visualizator
MPT60 M1

Temperature controller (mA, V, J, K, S, PT100) in 48x48; 1 alarm; Analog output.

MPT90 M1

Temperature controller (mA, V, J, K, S, PT100) with dual display in 48x48; 1 alarm; Analog output.

MPT390 M6

Temperature controller (mA, V, J, K, S, PT100) with dual display in 48x96; 2 alarms; Analog and serial output.