SICK GM35 User Manual

103
8009389/YN39/V3-0/2015-08| SICK OPERATING INSTRUCTIONS|GM35
Subject to change without notice
MAINTENANCE
9.3 Maintenance work on SR-unit and measuring probe
9.3.1 Taking the SR-unit with measuring probe off the sample gas duct
1 Remove the weatherproof cover of the SR-unit
▸ Unscrew the two knurled nuts on the top and lift the cover from the SR-unit.
2 Switch the power supply to the SR-unit off.
3 If no angle flange and no suitable support is available to lay the SR-unit together with the
measuring probe with cable connections still connected down on the floor without
damage:
▸ Unscrew the locking sleeves of the three plug-in connectors on the underside of the
SR-unit and remove the plug-in connectors.
▸ Loosen the cable clamp for the functional earth and remove the cable.
4 Following the safety information,
see “Safety”, page 99 exactly, and, in particular using
suitable protective equipment, remove the SR-unit and mounted measuring probe out of
the sample gas duct.
>>> To do this, loosen the four screw connections as shown on page 103 using two
24 mm wrenches, and remove the measuring probe with the SR-unit attached out of
the sample gas duct without tilting it.
Fig. 61: Removing the measuring probe with attached SR-unit from the duct-side flange
5 Carefully lay the SR-unit with mounted measuring probe on the ground, either on a
prepared bracket or, if the angle flange is to be used, on its side to prevent the cables on
the underside being damaged.
▸ Insert the measuring probe with SR-unit in the angle flange from the right as shown,
and secure it with at least two screws. The arrangement is important to allow the
SR-unit to be swiveled forwards.
NOTICE: Leave the purge air supply switched on.
NOTICE: Quick-release fasteners on the SR-unit on the measuring duct
● When the GMP measuring probe is used: Do not open the quick-release
fasteners.
● When the GPP measuring probe is used and/or if there is partial vacuum in
the sample gas duct: Quick-release fasteners can be opened.
Flange with tube (duct-side)
M16x60 screws with
nuts and each with one
washer and snap ring
Quick-release fasteners

SICK GM35 Specifications

General

Brand	SICK
Model	GM35
Category	Measuring Instruments
Language	English