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Installing/mounting
5.2 Installation instructions
5.2.8.2
Change of laser class
Change of laser class
• The analyzer is classified as a class 1 laser product. The emitted laser light is invisible (near
• Any changes to the device not described and permitted in the operating instructions might
Heat safety
Some metal parts and piping placed near the sensors might be at elevated temperatures due
to high temperature purging - either from steam or from air. To avoid severe burns these parts
must either be isolated or equipped with protective metal sheets. Always use protective gloves
in the vicinity of such hot parts.
Electrical safety
Mounting or unmounting of the device must be performed with the power cord
DISCONNECTED. The power supply must be connected only when the device is fully adjusted
and secured.
5.2.8.3
Installing process flanges
Note
Prior to the installation of receiver and emitter units, the process flanges must be welded in at
the measurement point and must be compatible with DN50/PN10-40 with the minimum inner
diameter of 50 mm (2.0 in).
The flanges must protrude at least 150 mm (5.9 in) (max. 250 mm (9.8 in)) from the wall
and 25 to 40 mm (1.0 to 1.6 in) into the process area. Flange tubes should never be longer
than the purge tube at a standard length of 400 mm (15.7 in). The symmetry axis of the
flanges must align within +-1° to enable optimum (following) alignment of sensors to the
optical axis.
The emitter unit and the receiver unit need to be aligned with respect to the axis of
symmetry of the flange.
36
CAUTION
infrared) and not hazardous to the unprotected eye. The analyzer has warning labels at
appropriate positions according to EN 60825-1:2014.
change the laser class and the emitted laser light might become hazardous to the
unprotected eye.
WARNING
WARNING
Operating Instructions, 05/2023, A5E51429088_AA
SITRANS TDL
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