Before Switching The Unit Off; Scope Of Delivery - Bosch ETT 008.71 Instructions D'emploi

Remove the filter (4) and the angular hose pieces (32) from the
upper and lower connection piece (31).
Gently rotate both angular hose pieces and pull off the filter and
attach to new filter.
Connect new filter and angular hose pieces to the connection
pieces; installation location corresponds to the imprint on the rear
panel of the device.
31
31
7.4.3 GF3 and GF4 pump protective filters (4)
The function of the GF3 and GF4 filters is to protect the pumps.
! Installing the wrong filters or exchanging the pump protection
filters too frequently leads to the analysis chamber in the ex-
haust-gas analyser becoming contaminated.
Depending on how often the exhaust-gas analyser is used, replace
the filters not more than once a year.
The efficiency of the GF4 filter, in particular, is significantly impro-
ved if it is wet rather than dry.
7.4.4 Replacing the GF2, GF3 and GF4 filters
! Do NOT pull the connection pieces (31) out of the rear panel
of the device!
Remove the filter (4) and the angular hose pieces (32) from the
upper and lower connection piece (31).
Gently rotate both angular hose pieces and pull off the filter and
attach to new filter.
Affix adhesive label 1 689 980 296 to the new filters (GF3 and GF4
only). The current date and the signature of the person who has
carried out the work must be written on the adhesive label. The date
enables you to check on the exchange interval and the signature
verifies that the filters have been exchanged properly. Use a non-
water-soluble felt pen for writing on the adhesive label.
Adhesive label: 1 689 980 296
Connect new filter and angular hose pieces to the connection
pieces; installation location corresponds to the imprint on the rear
panel of the device.
32
4
32
Datum/Date
Unterschrift/Sign
7.5

Before switching the unit off

In order to keep the level of contamination of the instrument as
low as possible, we recommend that before you switch off the
instrument you always flush out any residues of gas by leaving
the pump running and holding the sampling probe out in the open
(fresh air).
!
First exit the test step and wait for the pump to come to a
stop before you switch off the measuring instrument.
7.6 O sensor
2
The O sensor will wear out with time. The zero point of oxygen
2
analysis is monitored permanently. If it deviates, the fault message
E r r 14 O
2
sensor must be replaced.
i Only use the genuine O
BOSCH A7-11.5, CLASS R-17A BOS, CLASS R-17A SIE
or W79085-G4003-X.
Caution! The O
solution
! The O
sensor is industrial waste.
2
It must be eliminated according to the rules in force. The
numeric disposal key is 35324. In addition to the available
means of public disposal, these components can be sent for
disposal to AA/FEA1 - W495 central repair division.
8.

Scope of delivery

The scope of delivery of the ETT 8.71 comprises the following:
- ETT 8.71 basic unit
- Sampling sensor, 400 mm long
- Gas sampling hose, 8 m Viton 5 x 1.5
- Hose, 0.3 m Viton 6x3
- 3 PVC hoses, 0.7 m
- Filters
- Mains supply cable
- 2 time-lag fuses, 0,63 MT 250 V (spare)
- O sensor (integral)
2
- Plastic hose for leakage test
459558/24 Ha
sensor equalisation faulty" is displayed and the O
sensor with the designation
2
sensor contains a caustic alkaline
2
2
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