Smartline
Assembly draw-
Wrong Correct
8 The risk of kinks is
particularly high in
manual devices.
9 If e.g. powdery sub-
stances, adhesive
or other thermally
insulating materi-
als are spilled on
heating tubes,
overheating will oc-
cur in these areas.
10 Installing heating
tubes inside a
closed channel or
duct will cause
heat to build up in
these.
11 Bundling or install-
ation with the
tubes touching will
cause overheating
at these contact
points. Never oper-
ate tubes whilst
rolled up, as this
will cause over-
heating.
12 Heat build-up with
overheating is also
caused by wrap-
ping the heating
tube with other
materials. If the de-
tector area is
wrapped, the re-
maining tube will
cool down.
13 When using clamps
or similar parts for
installation, be
sure the exterior
structure will not
be crushed.
4.2 Connecting the gas line
Observe the following points with portable probes with re-
spect to connecting the sample gas line (Ø6 mm) to prevent
thermal bridges:
• Choose the shortest possible screw connection.
After connecting the sample gas line it must be braced and se-
cured with a clamp.
BX464002 ◦ 08/2020
Action
ing
Use an elbow or
bend protection
(e.g. wire spiral)
suitable for the
working position.
Constantly clean
these materials off
and eliminate the
cause.
Tubes must not
touch. Further en-
sure adequate
ventilation.
Install spaced
apart; unroll heat-
ing tubes
WARNING
Gas emanation
Sample gas can be harmful to the health!
Check the lines for leaks.
4.3 Connecting the calibrating gas line (optional)
A T-piece Ø6 mm is required to connect the calibrating gas
line. A suitable insulating sleeve is available for thermal insu-
lation.
Test gas
Sample gas
4.4 Electrical connections
WARNING
Hazardous electrical voltage
The device must be installed by trained staff only.
CAUTION
Wrong mains voltage
Wrong mains voltage may damage the device.
Regard the correct mains voltage as given on the type plate.
The operator must install an external separator for the device
which is clearly assigned to this device. A separator (main
switch) suitable for the voltage and a fuse of max. 10 A suit-
able for the conductor cross-section must be installed at the
site for this purpose. Perform a detailed root cause analysis.
Electric strength test
(Repeat) tests of the electric strength must be performed at
1 kV for stationary systems, or 1.5 kV for mobile applications.
The insulation resistance must be > 20 MΩ.
4.4.1 Self-regulating models
These models feature a self-regulating heater and do not re-
quire a separate temperature controller. Please refer to the
type plate for the supply voltage, 115 V AC 50/60 Hz or
230 V AC 50/60 Hz.
4.4.2 Regulated models
The models feature a regulated heater with Pt100 and require
a separate temperature controller. Please refer to the type
plate for the supply voltage, 115 V AC 50/60Hz or
230 V AC 50/60 Hz.
Insulating sleeve
for T-piece 6 mm
Bühler Technologies GmbH
9