Test Mode ( Switch S 60 At Position 0) - Bosch ETT 008.31 Repair Instructions

4.2

Test mode ( switch S 60 at position 0)

In this menu, internal measured values and device settings can be displayed for the purpose of assessing error messages
when repairing the device. To display this information, press the "Test u" button once or several times. The indicated mea-
sured value or analyzer parameter remains on display for the duration that the "Test u" button is depressed.
Press
"Test u u u u u "
1 x
2 x
3 x
4 x
5 x
6 x
7 x
Display
0.2 0.4
0.0
roh
36.87
tEP
2.820 2.794
2.435 2.729
Adu
7.738 7.546
7.875
Adut
19.05 99
dot
07.38 46
Uhr
CM05
Meaning/function
Current measured values prior to linearization (non-linearized
values).
Temperature in the analyzer part in °C (averaged temperature
of all receiving chambers).
Measured values from the analog-to-digital converter (ADC)
in the HC, CO and CO measuring channels in volts.
2
Temperature-compensated measured values from the analog-
to-digital converter (ADC) in the HC, CO and CO2 measuring
channels in volts.
Current date
Current time
Identification number for error message "Err 128
RAM check. This identification number defines the para-
meter(s) recognized as faulty (see Section l7.1).
Err 128 Err 128 Err 128" CMOS- Err 128
17