Dräger Oxylog 3000 plus Instructions For Use Manual page 105

The Oxylog 3000 plus displays the alarm message
Filter check failed (Filter check failed). The
measured CO value is outside the permissible
2
tolerance range.
 Check whether the sensor (A) or test filter (B) is
soiled and clean them if necessary. Repeat the
CO filter check.
2
If the check was still not successful:
 Perform the CO gas check.
2
Performing the CO gas check
2
Perform the CO gas check if the required CO
2
value is not reached during the CO
NOTE
Before the CO gas check can be performed, the
2
CO zero calibration must be completed
2
successfully. Otherwise the CO
be outside of the tolerance range.
NOTE
For the CO gas check use only a test gas
2
composed of CO and N
2
Otherwise values other than ±0.5 Vol% CO
be displayed.
1 Use the reusable cuvette from the calibration
set.
D
B
2 Connect the test gas cylinder (A) and the
cuvette (B) of the calibration set to the hose (C).
3 Fit the CO sensor (D) on the cuvette (B) of the
2
calibration set and connect the CO
the ventilator.
Instructions for use Oxylog 3000 plus SW 1.n
2
filter check.
2
gas check may
2
.
2
may
2
E
C
A
sensor to
2
4 Open the page CO
select the line Filter/gas check (Filter/gas
check) and then the line Gas check (Gas
check) and confirm. The display now shows
Turn on test gas (Turn on test gas).
5 Read the CO concentration of the test gas
2
from the test gas cylinder (A).
6 Open the test gas cylinder (E) and set the test
gas flow to 0.1 L/min. Select CONTINUE
(CONTINUE) and confirm with the rotary knob.
7 The Oxylog 3000 plus displays the CO
concentration Measured CO
CO value).
2
8 About 1 minute after setting the test gas flow,
check if the displayed CO
CO concentration specified on the test gas
2
cylinder (tolerance: ±0.2 Vol%).
9 Close the test gas cylinder.
If the measured CO value is outside the permitted
2
tolerance, the CO sensor must be recalibrated
2
with test gas.
CO calibration with test gas
2
The CO sensor must be calibrated if the required
2
CO value is not reached during the CO
2
check.
NOTE
Before the CO calibration with test gas can be
2
performed, the CO zero calibration must be
2
completed successfully. Otherwise the CO
calibration with test gas may be outside of the
tolerance range.
NOTE
For the calibration use only a test gas composed
of CO and N .
2 2
Otherwise values other than ±0.5 Vol% CO
be displayed.
Configuration
sensor (CO sensor),
2 2
2
value (Measured
2
value matches the
2
gas
2
2
2
may
105