Product Manual

Table Of Contents
Voltage-free contact
A voltage-free switch, mounted in the differential pressure gauge, closes at a pressure drop of
0.35 bar (5 psi) and can be used for remote control or alarm purposes.
The maximum switching voltage and current are 30 VAC/VDC and 0.2 A respectively.
External power supply
Optionally, the smart service indicator can be fitted with an external power supply and alarm
contact. Alarm contact will be triggered based on the pre-defined service criteria.
The optional connection kit consists of a male M8 connecter including wiring and connection to
the PCB of the smart service indicator.
Please find following wiring plan in order to connect the option kit.
Cable diameters: 0.75 mm²
Power supply spec: 24Vdc, min. 200mA-5W, Max. 500mA-13W
Instruction book
2920 7199 41 13