Performing Automatic Calibration - Dräger Polytron 8000 Serie Instructions For Use

Not all sensors and gases support auto calibration. If the
function is not available, perform the calibration manually.

9.6.1 Performing automatic calibration

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.
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.
1) Not applicable for all sensors (see "Display, analog interface and relay
status", page 15).
2) Only possible for certain sensors.
Dräger Polytron
2)
S is displayed.
2
®
8000 Series
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
002, Serious data error
025 - 027, in the instrument,
030 - 034, various causes.
041, 042,
1)
044, 050,
052, 081,
085
010 4 to 20 mA inter-
face cable not con-
nected.
045 Instrument not
detecting any sen-
sor.
051, 054 Faulty zero calibra-
tion.
055 Faulty span cali-
bration.
076, Instrument fault.
080 - 084
090 Sensor lock func-
tion is activated. A
sensor with a dif-
ferent part number
has been con-
nected.
105 Instrument fault.
Troubleshooting en
Remedy
Have the instrument
checked by DrägerService.
Reset the instrument to fac-
tory default settings. If this
fault occurs again: Have
the instrument checked by
DrägerService.
Check the 4 to 20 mA inter-
face connection.
If operated as a stand-
alone instrument without a
central controller, wire pin 3
to pin 4.
Check connections.If this
fault occurs again: Have
the instrument checked by
DrägerService.
Perform zero calibration.
Perform span calibration
Check electrical connec-
tions.If this fault occurs
again: Have the instrument
checked by DrägerService.
Use a sensor with the same
part number or disable the
sensor lock function.
Have the instrument
checked by DrägerService.