German WTW online temperature monitor

characteristic:
Built in lightning protection circuit
Input and output are electrically isolated and do not interfere with each other
EMC certification
Two sets of programmable relay outputs
96X96mm panel installation
RS485 serial interface
PROFIBUS DP gateway
Optional power supply 24VAC/VDC
Can be connected to NTC or 3-pole Pt100 electrodes
1 programmable analog current output
Wide testing scope

Control function
Users can set two sets of control/alarm relays as NC or NO contacts. The relay function can be assigned by the user, and the relevant functional parameters can be set in the submenu. After the control mode of the relay is selected, the instrument requires the input of the upper and lower points of the control, followed by the input of hysteresis and delay time.
The hysteresis defines the symmetrical error range of the control point to delay triggering the relay.
In addition, the relay also has a proportional control function, which is divided into two types: pulse width modulation and frequency modulation. With this function, users can achieve precise process feedback control and optimize the temperature control system.