User Manual

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Siemens Differential Pressure Sensor QBE3000-D.. / QBE3100-D.. CE1N1922en
Building Technologies 2018-11-19
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 G⅛“
or G½“ outer threading.
Instructions
Mounting instructions are enclosed with the differential pressure sensor.
It can be connected directly with G
1
/8" screwed fittings. Special precautions must be
taken on site when mounting the sensors to ensure airtight screw connections.
Use standard T-fittings or drill and de-bur measuring holes, each 5 mm diameter, for
the pressure tapping points (A).
An isolating bypass (5) can be fitted, to avoid overloading the pressure sensor on one
side while making adjustments.
For inspection purposes, measuring circuits can be fitted with a measuring-T at the
sensor head.
Mounting for use with liquids:
Always mount the sensor lower than the pressure measuring points
Mount on a vibration-free surface
Always evacuate the system
Supply Return
Key: A Measuring holes
1 Isolating valves
2 T-joints
3 Connection pieces (from mounting kit AQB2002)
4 Copper pipes (from mounting kit AQB2002)
5 Isolating bypass
For remote mounting, the sensor can be operated together with the AQB pressure
mounting kit in ambient temperatures of up to 70 °C for medium temperatures of up to
180 °C. Care must be taken in this case to ensure that the cooling efficiency of the
copper pipe is not reduced by additional heat sources or by restrictions to the air circu-
lation.
Mounting
Recommended
measures
Important note
Remote mounting