Performing A Sensitivity Adjustment - Dräger X-am 5100 Technical Manual

Calibrating the instrument
5.3

Performing a sensitivity adjustment

The sensitivity adjustment can optionally be performed by the
standard or by the 1-button method.
5.3.1 Standard 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 sensitivity calibration, the sensitivity of the sensor is
set to the value of the test gas.
1. Fit the calibration adapter
(68 06 291) to the sensor
cap.
2. Connect the test
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 up the adjustment menu, enter the password
and select the standard sensitivuty adjustment »
see Chapter 4.4.2 on page 14.
6. Press the key to start
OK
the sensitivity calibration.
The name of the gas

flashes.
7. Confirm with the key.
OK
The calibration gas

concentration is
displayed.
8. Press the key to
OK
confirm the calibration
gas concentration or use
the key to change
the calibration gas
concentration and
complete the process by pressing the
The set calibration gas concentration flashes.

9. Press the key to confirm the set value.
OK
10. 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 displayed measured values change to the values

according to the gas supplied.
When the measured value is stabilized:
11. Press the key to carry out the calibration.
OK
16
gas
0.0
HCl
ppm
key.
OK
When the calibration is complete:
The display

current gas concentration
alternates with the » OK «
display.
12. Press the
OK
for 5 seconds to quit the
calibration.
The instrument

changes to the
measuring mode.
13. Close the valve on the test
gas source.
If a fault has occurred during the sensitivity calibration:
The fault message »

appears and »
displayed for the respective
sensor instead
measured value.
In this case, repeat the

sensitivity adjustment.
If necessary, change the

sensor, see "Changing
sensors" on page 18.
00533280.eps
«,
11033280.eps
of the
key or wait
HCl
«
« is
of the
HCl
Dräger X-am 5100
OK
ppm
11133280.eps
--
ppm
11233280.eps