Automatic Calibration; Performing Automatic Calibration; Troubleshooting; Faults - Dräger Polytron 8000 Serie Notice D'utilisation

After 15 minutes without confirmation, the instrument
reverts to the calibration menu without performing a
calibration.
After the test gas has been applied to the sensor for 3
minutes and the displayed value is stable perform
1)
calibration :
6. Select Next and confirm.
 The message please wait... is displayed.
 The new current value is displayed.
7. Select Next and confirm.
8. Turn off gas flow and remove the calibration adapter from
the sensor or disconnect tubing.
If the current value is not within the alarm range:
9. Select Next and confirm.
 The instrument returns to the calibration menu.
9.6

Automatic calibration

Automatic calibration (Auto calibration) combines zero
calibration with subsequent span calibration and represents
an alternative to performing the zero and span calibration
manually.
Not all sensors and gases support auto calibration. If the
function is not available, perform the calibration manually.

9.6.1 Performing automatic calibration

After 24 hours, zero calibration is not up-to-date any more.
Thus, automatic calibration cannot be performed unless zero
calibration is performed again.
Calibration can be aborted at any time. To abort calibration
select back.
Prerequisites:
– Automatic calibration is enabled
– Sensor has finished the warm-up phase
– Calibration is prepared.
Perform automatic calibration
1. Apply Synthetic Air or Nitrogen if ambient air cannot be
used.
2. Select Calibration > Auto calibration and confirm.
 The message please wait... is displayed and the
instrument automatically performs the zero calibration.
 In case of an O
sensor Fresh air cal. is displayed.
2
The Maintenance signal is transmitted by the analog
interface, no alarm or fault relays are switched and the
symbol is displayed.
1) For LC sensors the test gas must be applied for at least 6 minutes.
Instructions for use |
Dräger Polytron
®
8000 Series
3. After a successful zero calibration, the span calibration is
started.
 The parameters for the gas are displayed, e. g.:
Gas : H S
2
Unit: ppm
Concentr.:25
4. If the displayed parameters do not match the target gas,
adjust the parameters:
a. Select Gas and confirm.
b. Select the calibration gas from the list and confirm.
c. Select Unit and confirm.
d. Select the unit of measurement from the list and
confirm.
e. Select Conc. and confirm.
f. Set the concentration of the calibration gas.
5. If settings are correct:
a. Select Next and confirm.
 A message like Gas flow ON H
6. Apply calibration gas.
a. Set gas flow corresponding to the sensor used (see
"Gas flow for calibrations", page 19)
7. Select Next and confirm.
 The current value is displayed
After 15 minutes without confirmation, the instrument
reverts to the calibration menu without performing a
calibration.
8. Once the current value is stable, the instrument
automatically performs the span calibration.
9. After a successful calibration, the new current value and
the message Value OK? are displayed.
● If not, select Redo and confirm to perform the
calibration again.
● If the value corresponds the target value, proceed.
10. Turn off gas flow and remove the calibration adapter from
the sensor or disconnect tubing.
11. Select Accept value and confirm to finish the calibration.
The instrument returns to the calibration menu.
10

Troubleshooting

10.1 Faults

Fault Cause
number
001, Serious instrument
003 - 005, fault, various
011 - 014, causes.
020 - 024,
043, 060,
067
2) Not applicable for all sensors (see "Display, analog interface and relay
status", page 15).
3) Only possible for certain sensors.
Troubleshooting
3)
S is displayed.
2
Remedy
Have the instrument
checked by DrägerService.
| en
2)
21