User Manual

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Siemens Differential pressure sensor QBM64-P4 CA1N1921E
Building Technologies 2018-01-31
Ordering and delivery
When ordering, please specify the quantity, product name and type code.
Example: 1 differential pressure sensor QBE64-DP4
A suitable fixing bracket is supplied with the sensor.
Any accessories required must be ordered separately.
Compatibility
The QBE64-DP4 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 a ceramic sensor element. The ceramic element
has the following significant advantages
• Very low susceptibility to temperature
• Resistance to high temperature
• No mechanical ageing or creepage
The sensor signal is linearised, temperature-compensated and amplified by the sensor
electronics.
Mechanical design
The QBE64.DP4 differential pressure sensor comprises the following:
• Sensor cover with connecting cable and gland
• Pressure sensor casing with ceramic element, screw connections and purging points
• Printed circuit board
• 2 screwed fittings for copper pipe, 6 mm diameter
• Fixing bracket, enclosed loose, with sensor
Accessories
AQB2002
Mounting kit for remote mounting with 1 m
copper capillary line, both ends prefabri-
cated ready for connection.
Thread adapters and terminal nuts made
of brass. Pressure connection with G1/8“
or G1/2“ outer threading.