Data Sheet for Product

Ordering and delivery
When ordering, please specify the quantity, product name and type code.
Example: 1 differential pressure sensor, type QBE63-DP05
A suitable fixing bracket is supplied with the sensor.
Any accessories required must be ordered separately.
Compatibility
The QBE63-DP... differential pressure sensors can be used in conjunction with all
devices or systems capable of processing the DC 0…10 V output signal.
Technology
The pressure to be monitored acts on an EPDM diaphragm which deflects a spring.
As a result of the pressure and consequent movement of the diaphragm, a permanent
magnet attached to the diaphragm changes its position in relation to the Hall-effect
transducer on the outside of the pressure housing. The transducer delivers an electrical
signal proportional to the magnetic field. This signal is linearised, temperature-
compensated and amplified by the built-in electronics.
6
7
2
3
4
5
1
p2
p1
920072
Key:
1) Pressure housing (measuring chamber)
2) Diaphragm and spring
3) Permanent magnet
4) Hall-effect transducer
with measuring
electronics
5) Cover
6) Cable entry with PG9 gland
7) Purging points
p1 G
1
/8" threaded connection for higher pressure
or lower vacuum
p2 G
1
/8" threaded connection for lower pressure
or higher vacuum
Mechanical design
The QBE63.DP... differential pressure sensors comprise:
• Plastic housing with Pg 9 cable gland
• Pressure casing with diaphragm and spring
• Printed circuit board with Hall-effect transducer
• Fixing bracket
Cross-section
2/6
Siemens Differential pressure sensors QBE63-DP… CA1N1920E
Building Technologies 2014-07-30