Data Sheet for Product

13
Smart Infrastructure
A6V11684000_en
--
_c
2021
-
02
-
24
On the air duct side On the pressure sensor side
Tubing with higher pressure side (lower
vacuum)
Connect to pressure nipple "+".
Tubing with lower pressure side (higher
vacuum)
Connect to pressure nipple "-".
Wiring
NOTICE
Polarity reversal protection
The device is short circuit proof and protected against polarity reversal.
Each connection is protected against crossover up to maximum supply voltage.
Fused mode analog outputs
QBM37.. Are supplied with a fused mode. This prevents damage caused by an interrup-
tion in Modbus communications.
The analog outputs are switched to DC 0 V for interruptions to communications
>60 seconds.
Disposal
The device is considered an electronic device for disposal in accordance
with the European Guidelines and may not be disposed of as domestic
garbage.
● Dispose of the device through channels provided for this purpose.
● Comply with all local and currently applicable laws and regulations.