Dräger X-am 5100 Technical Manual page 17

5.3.2 1-button sensitivity adjustment
CAUTION
!
Never inhale the test gas. Danger to health!
Observe the hazard warnings of the relevant Safety
Data Sheets.
NOTICE
i i
To minimise adsorption effects, keep the length of the
hose as short as possible (maximum hose length: 1 m).
Dräger recommends using PTFE hoses.
During the 1-button sensitivity adjustment, the sensitivity of the
sensor is set to the value of the test gas.
Using the Dräger CC Vision PC software, the preset

concentration values of the test gas cylinder used must be
changed in the instrument to the target values of the mixed
gas used.
1. Fit the calibration adapter
(68 06 291) to the sensor
cap.
2. Connect the test gas
source to the calibration
adapter.
3. Vent the test gas into
a fume cupboard or into
the open air (with a hose
connected to the second
connector of the calibration
adapter).
4. Switch on the instrument.
5. Call the calibration menu, enter the password and select
the 1-button sensitivity adjustment function »
see Chapter 4.4.2 on page 14.
6. Press the key to start
OK
the sensitivity calibration.
7. Open the valve on the test
gas source to let test gas
flow over the sensor.
The currently displayed

measured values start
to flash.
The flashing stops after

a static measured value
has been reached.
The adjustment is

now carried out
automatically.
The displayed measured values change to the values

according to the gas supplied.
The automatic stability monitoring can be terminated by

pressing the key. A calibration then takes place
OK
immediately.
Dräger X-am 5100
When the calibration is complete and the displayed
measured values have stabilized:

8. Press the
9. Close the valve on the test
If a fault has occurred during the 1-button sensitivity
adjustment:



00533280.eps
«,
0.0
HCl
ppm
11333280.eps
The display of the current
gas concentration
alternates with the » OK «
display.
key or wait
OK
for 5 seconds to quit the
calibration.
The instrument

changes to the
measuring mode.
gas source.
The fault message » «
appears and » « is
displayed for the respective
sensor instead of the
measured value.
In this case, repeat the
sensitivity adjustment.
If necessary, change the
sensor, see "Changing
sensors" on page 18.
Calibrating the instrument
OK
HCl ppm
11433280.eps
--
HCl ppm
11533280.eps
17