18 5.4.5 Checking Display Stability; O Sensor; No Sensor; Spare And Wearing Parts - Bosch BEA 055 Originalbetriebsanleitug

en | 24 | BEA 055 | Maintenance
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
to 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 sensor replacement.
2
!
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.
|
1 689 989 111 2020-09-24
Fluctuation
±0.005 % by vol
±0.2 % by vol
±12 ppm by vol
±0.4 % by vol
sensor is subject
2
sensor
2
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
<)
Coarse filter
<)
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
Robert Bosch GmbH