Dräger X-am 5600 Instructions For Use Manual page 25

 Have the instrument adjusted by the service personnel.
To check the measured value response times, apply t90 test gas to the X-am
via the calibration cradle. Check the results in accordance with the details in the
table from page 14 until 90 % of the end display is reached.
After the bump test (menu), the display shows a printer icon even if there is no
printer connected to the bump test station.
Adjustment
Adjustment may not be possible due to instrument and channel errors.
A potentially activated H offsetting is automatically temporarily deactivated
2
during a manual calibration, a PC calibration or an automatic Bump Test for the
relevant duration.
Carrying out the fresh air adjustment
Adjust the instrument to fresh air, free of measured gases or other interfering
gases. During the fresh air calibration, the zero-point of all sensors (with the
exception of the DrägerSensors XXS O
to 0. In the case of the DrägerSensor XXS O
The fresh-gas adjustment / zero-point adjustment is not supported by the
DrägerSensor DUAL IR CO , DrägerSensor IR CO
2
XXS O . A zero-point adjustment of these sensors can be made with the
3
Dräger CC Vision PC software. A suitable zero gas free from carbon dioxide
and ozone (e.g. N ) must be used.
2
Dräger recommends using the extended bump test for cross calibrations
(Dräger X-dock technical manual).
 Switch on instrument.
 Press the [+] key three times to display the icon for fresh air calibration »
 Press the [OK] key to start the fresh air calibration.
NOTICE
NOTICE
NOTICE
, DUAL IR CO and IR CO ) are set
2 2 2
, the display is set to 20.9 vol. %.
2
NOTICE
or the DrägerSensor
2
NOTICE
– The measured values flash.
When the measured values have stabilized:
 Press the [OK] key to perform the fresh air calibration.
– The display containing the current gas concentration changes with the
display »OK«.
 Press the [OK] key to exit the fresh air calibration function or wait for
approx. 5 seconds.
If a fault has occurred during the fresh air adjustment:
– The fault message » « appears and »
respective sensor instead of the measured value.
 In this case, repeat the fresh air adjustment. If necessary, have the sensor
replaced by qualified personnel.
Adjusting the sensitivity for an individual
measuring channel
A potentially activated H offsetting is automatically temporarily deactivated
2
during a manual adjustment, a PC calibration or an automatic Bump Test for
the relevant duration.
– The span adjustment can be carried out selectively for individual sensors.
– In the case of the span adjustment, the sensitivity of the selected sensor is
set to the value of the test gas used.
– Use a standard test gas.
– Allowed test gas concentration:
DUAL IR Ex
20 to 100 %LEL
IR Ex
DUAL IR CO
2 0.05 to 5 vol. %
IR CO
2
O 10 to 25 vol. %
2
CO 20 to 999 ppm
H S 5 to 99 ppm
2
H HC 0.5 to 4.0 vol. %
2
NO 5 to 99 ppm
2
Test gas concentrations of other gases: see Instructions for Use of the
respective DrägerSensors.
1) Depending on the selected data set.
«.
2) Depending on the measuring range and the measuring accuracy.
« is displayed for the
NOTICE
1) 2) 1) 2)
/ 5 to 100 vol. %
2)
25