TEMPERATURE SWITCH KTSZ4H-24 - RS 485 (MODBUS)

These KTSZ4H temperature switches with display are designed to be used as two-state regulators (ON / OFF type control). They compare the temperature set point with the actual temperature value and enable the galvanically isolated (electrically isolated) contacts of a connected relay to be switched when the set temperature is reached. The supply voltage for the switches is 10 to 33 V DC or 9 to 24 V AC (depending on the type). two temperature sensing elements based on Pt (Pt 1000/3850) or based on Ni (ni 1000/6180) can be connected to the switches. The display shows the current value of the measuring temperature during the measuring process. The setting of the individual parameters is carried out by two control knobs.

The switch can be used in 5 different modes:

Mode no. 1: The switch works as a single controller which switches the first relay according to the set temperature interval and the second relay is switched to the exceeding set emergency temperature (only one sensing element is used)

Mode no. 2: The switch works as a dual controller which switches each relay according to the set temperature interval (only one sensing element is used)

Mode no. 3: The switch works as a dual controller, which switches each relay separately according to the temperature interval (two sensing elements are used, each separately for each relay)

Mode no. 4: The switch works as a differential regulator which switches based on the temperature difference of two sensing elements (analogous to mode # 1)

Mode no. 5: The switch works as a differential regulator which switches based on the temperature difference of two sensing elements (analogous to mode # 2)

The switch-off delay of relay 1 within the limits 0–300 s can be set in each mode. Measurements and adjustment of all parameters can be carried out by means of the industrial RS485 bus with ModBus RTU protocols (as standard) With a simple RS485 / RS232 converter, the switch can be connected to the PC serial port and thus various settings can be carried out. For this purpose, the software placed on the website in the download section. The switches are intended to be mounted on the DIN blade. The temperature range of switching applications depends on the type of temperature sensing element used (eg for the sensor in the TG8 housing the range is -50 to 200 ° C). The maximum operating temperature range of the switch is -50 to 250 ° C.

The switches are intended to operate in a chemically non-aggressive environment.

TESTS, DECLARATION, CALIBRATIONS

Type tests are carried out by a notified body according to standard EN 50155, as amended, Railway applications - Electronic equipment used on rolling stock, Art. 12.2.9, 12.2.11

- Electromagnetic compatibility according to EN 50121-3-2, as amended

- Insulation test according to EN 50155, as amended

- Shock and vibration tests according to EN 61373, as amended

The product meets the parameters in accordance with EN 45545-2, as amended, Fire protection of railway vehicles - Part 2: Requirements for the fire behavior of materials and components. May be supplied with materials that meet NFPA 130 fire safety standard, as amended.