1
Installation
Connecting tubes
1.3 Connecting tubes
1.4 Wiring
1.4.1 Electrical grounding
Starting point
6 | 20
Connect the tubes
Note the following grounding situation of the QBM3700...
Power-
supply
24V
Transformer
REF B- A+
M
Not isolated RS485
0V
Sensor module
Earth
Avoid loops
A6V11841988_en--_b