Data Sheet for Product

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Siemens Pressure sensors QBE2x03-P... A6V10432494_en--_d
2019-06-04
Mode of operation
The pressure sensors operate on the piezo-resistive measuring principle. The ceramic
or stainless steel diaphram*) (thick-film hybrid technology) acquires the pressure
through direct contact with the medium. The measurement is converted electronically
into a linear output signal of DC 0...10 V or DC 4…20 mA.
*) Applies to QBE2003-P10, QBE2003-P16, QBE2003-P25, QBE2103-P10, QBE2103-P16, and
QBE2103-P25
Mechanical design
The pressure sensor consists of:
• Sensor hood with DIN EN 175301-803-A plug-in connection
• Piezo-resistive measuring element integrated in the stainless steel case
• Pressure connection external thread G ½" and inside thread M5*) for use with
accessory AQB2001**)
• Plug DIN EN 175301-803-A (plugged in)
No changes or adjustments are possible.
*) The following types do not have M5 inside threads:
QBE2003-P10, QBE2003-P16, QBE2003-P25, QBE2103-P10, QBE2103-P16, and QBE2103-P25
**) Cannot be used on types QBE2003-P10, QBE2003-P16, QBE2003-P25, QBE2103-P10,
QBE2103-P16, and QBE2103-P25. A solution on the construction side using the ½" threaded
connection is possible.
Mounting notes
Mounting Instructions are enclosed with the sensor. For further information about
mounting location and mounting position refer to the sensor mounting user's manual at
the BT download center: http://siemens.com/bt/download.
Appropriate measures must be taken to ensure a leak-proof fitting.
To provide for test measurements without leakage of the medium, it is strongly
recommended that an appropriate test adapter and shutoff device be fitted.
The tapping point should be at the side, near the bottom of
the pipe. Do not measure the pressure from the top of the
pipe (where it may be affected by airlocks) or the bottom
(where it may be affected by dirt).
Always purge the system.
1909Z03
The tapping point should be at the top so that no condensate
reaches the sensor.
1909Z04
Ensure suitable constructions measures are undertaken to avoid pressure shocks in
the plant; pressure shocks may damage the pressure sensor's diaphragm.
In the event that pressure shocks are unavoidable, a panel screw (M5) may be able to
weaken the effect. Contact in this case your nearest Siemens branch office.
Disposal
The device is considered electrical and electronic equipment for disposal in terms of the
applicable European Directive and may not be disposed of as domestic garbage.
• Dispose of the device via the channels provided for this purpose.
• Comply with all local and currently applicable laws and regulations.
Pressure measurement
with liquids
Pressure measurement
with condensing gases
Important note