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Calibration
3. If the settings are correct:
a. Select and confirm Next.
A message like Gas flow ON H
4. Apply adjustment gas.
a. Set the gas flow corresponding to the sensor used
(see "Gas flow for adjustments", page 23).
5. Select and confirm Next.
The current value is displayed
After 15 minutes without confirmation, the instrument
returns to the adjustment menu without performing an
adjustment.
After the test gas has been applied to the sensor for
3 minutes and the displayed value is stable, perform
1)
adjustment.
:
6. Select and confirm Next.
The message please wait... is displayed.
The newly detected (current) value is displayed.
7. Select and confirm Next.
8. Turn off the gas flow and remove the calibration adapter
from the sensor or disconnect the hose.
If the current value is not within the alarm range:
9. Select and confirm Next.
The instrument returns to the adjustment menu.
8.7
Automatic calibration
8.7.1 General information
Automatic calibration includes the zero calibration and a
subsequent span calibration. It is an alternative to manually
carrying out the zero and span calibration.
Not all sensors and gases support automatic calibration. If the
function is not available, perform the calibration manually.
8.7.2 Perform 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.
1) For LC sensors, the test gas must be applied for at least 6 minutes.
26
Perform the automatic calibration as follows:
1. Apply Synthetic Air or Nitrogen if ambient air cannot be
S is displayed.
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2. Select Calibration > Auto calibration and confirm.
3. After a successful zero calibration, the span calibration is
4. If the displayed parameters do not match the target gas,
5. If settings are correct:
6. Apply calibration gas.
7. Select Next and confirm.
8. Once the current value is stable, the instrument
9. After a successful calibration, the new current value and
10. Turn off the gas flow and remove the calibration adapter
11. Select Accept value and confirm to finish the calibration.
2) Not applicable for all sensors (see "Measuring mode", page 17).
3) Only possible for certain sensors.
Instructions for use
used.
The message please wait... is displayed and the
instrument automatically performs the zero calibration.
In the case of an O
sensor, Fresh air cal. is
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displayed.
The Maintenance signal is transmitted by the analog
interface, no alarm or fault relays are switched and the
symbol
is displayed.
started.
The parameters for the gas are displayed, e. g.:
Gas : H
S
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Unit: ppm
Concentr.:25
3)
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.
a. Select Next and confirm.
A message like Gas flow ON H
a. Set the gas flow corresponding to the sensor used
(see "Gas flow for adjustments", page 23)
The current value is displayed
After 15 minutes without confirmation, the instrument
reverts to the calibration menu without performing a
calibration.
automatically performs the span calibration.
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.
from the sensor or disconnect the hose.
The instrument returns to the calibration menu.
®
|
8000 Series SW version ≥ 4.0.x
Dräger Polytron
2)
S is displayed.
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