HB Products A/S – Boegekildevej 21 -8361 Hasselager – tel.: +45 8747 6200 – Email: [email protected] (rev. 002)
Quick Guide
HBDF Defrost Sensor
Defrost on demand
For installation on evaporators:
Electrical connection:
The sensor comes with a 5m connection cable as well as a programming cable. Supply and analog output are
connected according to the diagram below:
Pin 1 (brown) & Pin 2 (white): 24 V supply
Pin 2 (brown) & Pin 4 (blue): 4-20 mA output
Pin 3: Not in use
Pin 5 & Pin 2: Calibration from main PLC. Activate 7 sec. Wait 2 sec and then activate 2 sec again.
Sensor output signal: