19
4.7.5
Readjustment with test gas
i
A distinguishing feature of the exhau-
st-gas analyzer module is the excel-
lent long-time stability of its measu-
ring accuracy. Despite this, the ex-
haust-gas analyzer may be required
by law or by the regulations of appro-
val authorities to be recalibrated with
calibrating gas at given intervals.
To recalibrate the exhaust-gas analyzer,
you will need a calibrating-gas mixture
with the following concentrations (depen-
ding on requirements):
HC:
400 to 2000 ppm vol C
3
H
8
,
entry
in propane
CO:
1% to 10% vol CO
CO
2
: 5% to 18% vol CO
2
Using the keyboard, enter the calibrating-
gas values for
CO
as stated on the certi-
ficate.
Confirm your entry of these values by
clicking
OK
or by pressing
E
.
Using the keyboard, enter the calibrating-
gas values for
CO
2
as stated on the certifi-
cate.
Confirm your entry of these values by
clicking
OK
or by pressing
E
.
Using the keyboard, enter the calibrating-
gas values for
HC
as stated on the certif-
icate.
Confirm your entry of these values by
clicking
OK
or by pressing
E
.
Содержание BEA 150
Страница 91: ...92 12 Overview 12 1 Electrical wiring Siemens analysis chamber 459716 2Ha ...
Страница 94: ...95 12 4 Hosing Siemens analysis chamber X26 X24 X25 X22 X5 LP 223 X19 459716Ht ...
Страница 96: ...97 12 6 Electrical wiring Andros analysis chamber 4597162Ht ...
Страница 99: ...100 12 9 Hosing Andros analysis chamber 459869_03Ht ...
Страница 100: ...101 12 10 Gas circuit diagram Andros analysis chamber ...