Data Sheet for Product
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Siemens Differential pressure sensor QBM4000…/ QBM4100… CE1N1919en01
Smart Infrastructure 2019-10-09
Commissioning notes
The values indicated under "Technical data" apply only to vertically mounted differ-
ential pressure sensors (connection nipples pointing down).
The sensor is calibrated at the factor in the vertical position. As a consequence, the
sensor must be installed in the vertical position. For horizontal installation (hous-
ing cover top or bottom), deviations occur to measured values that negate the
measured values on the certificate.
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 gar-
bage.
• Dispose of the device via the channels provided for this purpose.
• Comply with all local and currently applicable laws and regulations.
Technical data
Power supply Safety extra low voltage (SELV/PELV)
or class 2 (UL)
QBM4000-...
3-wire connection
Operating voltage
Power consumption
Current draw
AC 24 V ±15 %, 50/60 Hz or DC 13.5...33
< 0.5 VA
< 10 mA
External supply line protection
Fuse slow max. 10 A
or
Circuit breaker max. 13 A
Characteristic B, C, D according to EN 60898
or
Power source with current limitation of max. 10 A
Output signal DC 0...10 V, R
Last
> 10 k
Ω
(not galvanically
separated, 3-wire connection, short-circuit proof,
protected against reverse polarity)
QBM4000-...
2-wire connection
Operating voltage
for ohm loads up to 500 Ω.
Power consumption
Current draw
DC 8...33 V
DC 18…33 V
<0.7 VA
4...20 mA
Output signal
4...20 mA
][
A0,02
V8 tagesupply vol
R
load Ω
−
<
2-wire technology, short-circuit proof, protected
against reverse polarity)
.
Product data
Measuring range
Refer to "Type summary"
Sensing element
Piezo-resistive (silicone membrane, ceramic bar)
Degree of measuring accuracy at required
installation position and room temperature
25 °C.
(FS = Full Scale)
QBM4100
-1U Sum from zero point, linearity, reproducible
and hysteresis.
TC zero point
TC sensitivity
<±1 % FS (<±1 Pa)
<±0,1 % FS/°C
<±0,06 % FS/°C
Caution
Sensor calibration