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TRM138 multi-channel on-off controller

The 8 channel on-off controller TRM138 can measure, display and control different physical process values such as temperature, pressure etc.


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Product Description

    8 channel on-off controller
    The 8 channel on-off controller TRM138 can measure, display and control different physical process values such as temperature, pressure etc. It controls up to eight channels and enables the forwarding of measured data for recording and further processing.

    Functions and features:
    • 8 analog inputs for different signal types
    • Measuring and control of different physical values such as temperature, humidity, pressure etc.
    • Measured value processing and signal analysis:
    1. averages
    2. differences
    3. rate of change
    • 8 channels for controlling or forwarding of measured or calculated values:
    1. on-off control
    2. forwarding to analog output as a 4-20 mA signal
    • 8 outputs e.g. relays, 4-20 mA
    • Alarm function for sensor errors
    • Output manual control
    • Configuration using the front panel keys
    • Integrated RS485 interface with Modbus RTU/ASCII protocol


    Areas of application:

    The TRM138 is used in various fields of industry as e.g. multi-zone oven temperature control, protective and monitoring systems.

    Ordering information

    TRM138-H7 . X
    Output type
    Relay (4 A, 230 V AC / 24 V DC) R
    Analog output 4-20 mA I

    Standard modifications

    TRM138.H7.R 8 Relay outputs (4 A)
    TRM138.H7.I 8 Analog outputs (4-20 mA)
    TRM138.H7.IIIIRRRR 4 Analog outputs (4-20 mA), 4 Relay outputs (4 A)

    Various types of outputs should be indicated in the order key only in the certain sequence: I -> R

    Power supply 230 (90...264) V AC; 50 (47...63) Hz
    Power consumption, max. 18 VA
    Integrated voltage source 24±3 V DC, 150 mA
    Sampling time / input ≤ 0.6 s
    Analog inputs 8
    Input signal RTD
    Standard signals
    Optional outputs 8
    Type R - Relay 4 A / 250 V AC
    4 A / 30 V DC
    I - Analog 4-20 mA 10…30 V, max. 1.3 kohm
    Interface RS485
    Protocol Modbus-RTU / ASCII, akYtec
    Baud rate 2.4...115.2 kBit/s
    Ambient temperature +1...+50 °C
    Humidity up to 80% (at +25°C, non-condensing)
    IP Code IP54 front
    Dimensions 169 x 144 x 50 mm
    Weight approx. 450 g
    Material plastic
    Sensor Measuring range 
    Standart signals
    0-1 V
    -50…+50 mV
    0-5 mA
    0-20 mA
    4-20 mA
    RTD according to IEC 60751:2008
    Pt50, Pt100 -200…+750°C
    TC according to IEC 60584-1:2013
    J -200…+1200°C
    N -200…+1300°C
    K -200…+1300°C
    S 0…+1750°C
    R 0…+1750°C
    A 0…+2500°C
    RTD according to GOST
    50P, 100P -200…+750°C
    50M, 100M -190…+200°C
    Cu50, Cu100 -50…+200°C
    TC according to GOST
    L -200…+800°C
Additional Information

    preset CONFIGURATIONS for typical applications

    8-channel 8-channel 2 position control

    8-channel temperature controller can be used for bread production, in multiband tunnel type furnaces, and other process equipment.

    Alarm switch (8 inputs) Alarm switch (8 inputs)

    Alarm switch can be used in the multi-zone ovens for food, metallurgical and other industries.

    4-channel 3 position control 4-channel 3 position control

    Temperature control and two-stage heating control in technological equipment with up to four heating areas and rapid heat-up: baking ovens, injection molding machines, extruders, etc.

    1-channel 2 position control 1-channel 2 position control

    Temperature on/off control with one sensor and eight independent settings.

    Any combination digital and analog outputs R, I, S, T, U

    Any combination digital and analog outputs R, I, S, T, U


    No Questions