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Retail Wholesale OEM

Products / Commercial & Industrial Heating / Controllers

Multi-function, DIN rail mount

Electronic temperature controller for four-channel temperature maintenance

  • 4 independent control channels
  • High temperature measurement accuracy
  • High interference immunity of measurement channels
  • External sensors can be placed at max. distance of 1000 m
  • Simultaneous display of temperatures for 4 channels
  • Simultaneous display of heating state for 4 channels
  • Thermal control capability within the temperature range from -100 C to +600 C
  • Equipped with built-in matrix display
  • Easy adjustment of controlled temperatures
  • DIN-rail mounting
  • Communication interface RS485, MOD_BUS/RTU
  • The preset parameters are saved in non-volatile device memory


Terminal block layout


The electronic thermostat PTM-2000 is an eight-channel temperature monitoring and four-channel control device.

PTM-2000 controller is used as a part of various electric heating systems. It ensures optimal temperature maintenance for each of four independent control channels.

Algorithms used for heating control together with a set of sensors required for each specific system ensure optimal heat tracing control solving the customer’s heating problem and saving energy ensuring in such a way high efficiency of electric cable heating systems operation.

The controller provides temperature measurement by sensors of temperature, processing signals received form precipitation and water sensors, it enables easy integration into computerized process control systems via data transmission interface RS485. Heating control is effected by means of output relay channels, all operating parameters and conditions of the controlled heating systems are displayed. The controller is mounted on DIN rail 35 mm in control cabinet.

Control algorithms

The controller provides 5 control algorithms. Screen menu selection of the required algorithm is ensured. The output relay functions and sensors connection diagram are specific for each control algorithm.

The available algorithms are as follows:

  1. TUBE – 4-channel two-position control.
  2. TUBE+ – 4-channel proportional control.
  3. ROOF/ROAD (DE-ICING) – 4-channel control of roof and open area de-icing systems.
  4. TIMER – control of 4 independent channels by variation of power application time within a specified period.
  5. MEASURER – 8-channel temperature measurement and indication.

Technical data

Supply voltage 90 ... 250 VAC, 50–60 Hz
Maximum load current 6 A
Power consumption 12,0 W
Weight 450 g
Dimensions 160x90x60 mm
IP protection level IP20
Types of sensors used* (the type of the connected sensor is to be set in the device adjustment menu, separately for each channel) TST01, TSP01, TSP02, TSW01 Normalized signal 4 … 20 mA
Interface, communication protocol RS485, 9600 bit/s RS485, MOD_BUS/RTU
Maximal sensor distance from the controller* up to 1000 m for normalized signal 4…20 mA 100 m for temperature sensor TST01
Permissible ambient air temperature range +5 °C ... +45 °C
Permissible relative air humidity 80 %
Temperature range +5 °C ... +40 °C
Temperature setting range –100 °C ... +600 °C for normalized signal 4…20 mA –55 °C ... +60 °C (+125 °C**) for temperature sensor TST01
Measurement channels number 4(8) channels
Control channels number 4 channels
Temperature measurement accuracy 0,5 %
Temperature indication accuracy 0,1 °C
Colour gray
Mounting type DIN-rail, 9 modules

* The temperature sensor is not included in the delivery kit, it should be ordered separately. The sensor’s parameters are provided in its Technical Certificate. Power connection of the controller, connection of temperature sensors and load outputs are to be made using screw terminals installed on the device’s board. All terminals ensure connection of conductors having cross-section up to 2,5 mm2.

** For sensor in silicone enclosure

Joint products

  • Temperature sensor TST01
  • Precipitation sensor TSP03-D, TSP02
  • Water sensor TSW01
  • Power supply unit BPDO

Ordering information

Thermostat PTM-2000