Spare And Wearing Parts - Bosch BEA 055 Notice Originale

5.4.5 Checking display stability
¶
Detach the hose at the exhaust gas measurement
inlet of the BEA 055.
i
There must not be any engine exhaust gases,
gasoline or cleaning agent vapors in the atmosphere
in the vicinity of the BEA 055.
Select "Diagnosis >> Engine/gas values" in the Bosch
Emissions Analysis. The current gas values are
displayed following zero calibration and the HC residue
test.
Observe the display for approx. 2 minutes with regard
to limit values and stability.
Fluctuation error limits (noise):
Gas Set value
CO 0 % by vol
CO 0 % by vol
2
HC 0 ppm by vol
O 20.9 % by vol
2
The HC display must have settled after approx.
2 minutes to a value < 12 ppm by volume.
5.4.6 O sensor
2
Over the course of time, the O
wear. The oxygen measurement zero point is constantly
monitored. In the event of deviation, a fault message
appears. The message indicates the need for O
replacement.
!
Use is only to be made of a genuine O
with the designation BOSCH A7-11.5 or
CLASS R-17A BOS (order number 1 687 224 727).
The O sensor contains an alkaline solution.
2
Alkaline solutions cause severe burns on
bare skin.
¶
Do not open or damage the O2 sensor.
¶
Wear safety goggles.
¶
Wear protective gloves.
¶
Immediately rinse any areas of skin affected
with water at least 15 minutes and then
consult a doctor.
!
Old O sensors are classed as hazardous waste
2
and must be disposed of in accordance with
the applicable regulations. The disposal code is
16 05 02 (European waste catalog: EAK code).
In addition, these parts can be sent back to the
manufacturer for disposal.
Robert Bosch GmbH
All manuals and user guides at all-guides.com
Fluctuation
±0.005 % by vol
±0.2 % by vol
±12 ppm by vol
±0.4 % by vol
sensor is subject to
2
sensor
2
sensor
2
Operation | BEA 055 | 23
5.4.7 NO sensor
Over the course of time, the NO sensor is subject
to wear. The zero point of the NO measurement is
constantly monitored. In the event of deviation, a fault
message appears. The message indicates the need for
NO sensor replacement.
!
Always use the genuine NO sensor (NOXO 100 Nitric
Oxide Sensor; order number 1 687 224 954).
The NO sensor contains acid.
Acids cause severe burns on bare skin.
¶
Do not open or damage the O2 sensor.
¶
Wear safety goggles.
¶
Wear protective gloves.
¶
Immediately rinse any areas of skin affected
with water at least 15 minutes and then
consult a doctor.
!
Old NO sensors are classed as hazardous waste
and must be disposed of in accordance with the
applicable regulations. The disposal code is 16 05 02
(European waste catalog: EAK code). In addition,
these parts can be sent back to the manufacturer for
disposal.
5.5

Spare and wearing parts

Designation
BEA 055
O sensor
<)
2
NO sensor
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Coarse filter
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Active carbon filter
<)
Exhaust gas sampling hose for the BEA 055
and exhaust gas sampling probe (gasoline)
Test hose for leak test
<)
Power supply unit for the BEA 055
Power cable (1.5 m)
<)
USB connection cable (1 m)
Wearing part
<)
Order number
1 687 023 550
1 687 224 727
1 687 224 954
1 687 432 005
1 687 432 014
1 680 706 043
1 680 790 049
1 680 706 040
1 687 023 816
1 684 461 106
1 684 465 491
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1 689 989 111 2019-07-24
en