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6 Commissioning/Decommissioning
6.4.1 Install the Probe in the PIF and Align the GED
The LS2 Lambda Probe is the transducer. It is located directly in the exhaust gas stream. The
gas to be measured is fed to the probe via the gas extraction device (GED)/flue gas bypass
tube. Measurement takes place directly in the probe. The LS2 probe is connected to the probe
connection box (PCB) or LT2 via a 4 strand cable with two plugs.
Fig. 6-8 Probe installation with GED
1 Union nut
2 Threaded connection
(Position 1 + 2 = Probe installation fitting
(PIF) type 655R1010
3 Welding socket
4 Probe
5 Flue gas
6 Gas extraction device (GED) type
655R001 ... 1004
7 Welded
8 Rating Plate
Fig. 6-9 Correct probe installation with GED in flue gas duct
Fig. 6-10 Wrong probe installation
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