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If the calibration gas is changed, the affected channel must
be calibrated.
X-am 5800: An active H
deactivated temporarily for the duration of a manual
calibration, a PC calibration or an automatic bump test.
5.6.2 Performing a fresh air calibration
Observe the following instructions for fresh air calibration:
● To improve accuracy, a fresh air calibration must be
carried out if a zero deviation exists.
● For the fresh air calibration, the display on the
DrägerSensor XXS O
2
20.9 Vol%.
The fresh air calibration is not supported by the CO
channel of the infrared sensor and XXS O
of these sensors can be undertaken by performing a single-
gas calibration with N
or using the Dräger CC-Vision PC
2
software. A suitable zero gas is required here, one that is free
from carbon dioxide and ozone (e.g. N
Prerequisites
– The fresh air calibration can only be carried out if at least
one sensor supports fresh air calibration.
– The fresh air must be free of measured or interfering
gases.
– The gas detector is switched on and warm-up phases 1
and 2 are complete.
To carry out a fresh air calibration:
1. Switch on the gas detector.
2. Call up fresh air calibration (depending on configuration):
Via the Quick menu:
● Press
3x in measuring mode.
● Select and confirm fresh air calibration
Via the menu:
a. Press
for approx. 4 s in measuring mode.
b. Enter and confirm the password.
c. Select and confirm fresh air calibration
All measurement channels involved in the fresh air
calibration flash.
3. Press
to start fresh air calibration manually.
OK
All measurement channels involved in the fresh air
calibration flash.
4. If necessary, press
OK
this case, a calibration takes place immediately.
Dräger recommends using the automatic stability
control (wait until the gas detector has independently
carried out the calibration).
The new measured value is displayed for control
purposes.
The result is displayed as follows:
OK fresh air calibration successful.
fresh air calibration failed.
Instructions for use
|
X-am
added signal will be automatically
2
and XXS O
PR is set to
2
. A zero calibration
3
).
2
.
.
to override the stability check. In
®
®
2600 / X-am
2800 / X-am
5. The fresh air calibration is complete when all participating
measurement channels have passed or failed the fresh air
calibration.
● Select
● Select
result.
● Select
5.6.3 Carrying out a single-gas calibration
Observe the following instructions for single-gas calibration:
● With a zero-point calibration, the zero-point of the selected
sensor is set to zero.
● In the case of the span calibration, the sensitivity of the
selected sensor is set to the concentration value of the
test gas used.
2
● In order to perform span calibration on the Dräger IR
sensors, a valid zero calibration must be available (no
more than 30 minutes old) otherwise an acknowledgeable
warning is output.
● Use a standard test gas.
Permitted test gas concentration:
Ex-channel of infrared sensor
(X-am 5800 only)
CO
channel of infrared sen-
2
sor
(X-am 5800 only)
CatEx
O
2
PID HC neo
The permitted test gas concentration of other gases can be
read out of the gas detector by the Dräger CC Vision PC
software. The permitted concentrations depend on the set
parameters (e.g. alarm thresholds).
1) Dependent on measured gas selected.
2) Dependent on measuring range and measurement accuracy.
Dräger recommends selecting a test concentration in the
middle of the respective measuring range or close to the
expected measured value.
WARNING
Health hazard from test gas
Breathing in of test gas can be harmful to health or lead to
death.
► Do not inhale the test gas.
► Observe risks connected with the test gas, hazards notes
and safety advice (see for example safety data sheets,
instructions on the testing media).
1. Connect the test gas cylinder to the calibration adapter
(order no. 8318752).
®
5800
Maintenance
to confirm the result.
and then confirm the dialogue to discard the
to return to the results.
20 to 100 % LEL
5 to 100 Vol%
0.05 to 5 Vol%
The permitted test gas con-
centration is displayed by the
gas detector during single-
gas calibration of the sensitiv-
ity.
100 ppm iBut
|
en
1) 2)
1) 2)
2)
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