User Manual

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Siemens Immersion temperature sensors QAE3010..., QAE3075... CE1N1794en
Building Technologies 2017-12-01
Ordering
When ordering, please give name and type reference according to "Type summary",
e.g. immersion temperature sensor QAE3010.010
Mechanical design
The sensor consists of an exchangeable insert with sensing element and connecting
head with a removable cover made of aluminum. The inserts are not available as re-
placement parts, but can be removed from a new sensor with the identical apparatus
item number (ASN).
The terminal block for the electrical connections is located in the connecting head. The
sensors have a 70 mm neck tube made of stainless steel and a G ½ threaded bushing
with sensor sleeve. The sensing element is located at the end of the sensor sleeve.
The sleeve is suited from operating pressures up to 40 bar.
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.
Technical data
Type of sensor
QAE3010...
QAE3075...
Measuring range, immersion length
Refer to "Type summary"
Sensing element
Pt100 (class B)
Pt100 (class B)
Measuring tolerance
± 0.3 K at 0 °C ± 1 % of measuring range
Time constant t
63
25 s
25 s
Type of measurement and output
passive
active, 4...20 mA
Power supply (Ub)
DC 7.5...30 V (SELV)
Current draw
Max. 20 mA
Load / dummy load (Rb)
Rb = (Ub – 7.5) V / 0.022 A
Perm. amb. temp. at connecting head
Max. 100 °C
Max. 85 °C
Perm. amb. hum. at connecting head
<95 % r.h. (noncondensing)
Measuring medium
Gaseous or liquid
Max. sp
eed of flow Refer to "Type summary"
Nominal pressure
PN 40
Mechanical
Thread G½, SW24
Electrical
Screw terminals for max. 2 x 1.5 mm
2
Protection degree of housing
IP65 according to EN 60529
Protection class
III to EN 60730-1
Connecting head, type BUZ
Die-cast aluminium;
Similar to white-aluminium RAL 9006
Neck tube and threaded bushing
Stainless steel 1.4571
Sensor tube
Stainless steel 1.4571, pipe dia. = 9 mm
General sensor data
Connections
Degree of protection
Materials and colors