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Beschikbare talen
Beschikbare talen
Zero-Point Calibration Dräger PIR 7000 / Dräger PIR 7200
Action
Status Indicator
Prepare device for zero-point calibration:
Put the magnetic
Green / yellow flash
wand on the » 0 «
alternately and quickly
mark and hold it
there.
Remove the
Green and yellow
magnetic wand.
are on
Initiate the zero-point calibration:
Place the magnetic
wand within
2 seconds on
marking » 0 « for at
least 1 second and
Green / yellow flash
then remove it.
alternately
Place on calibration
adapter PIR 7000.
Feed nitrogen or
synthetic air with at
least 0.5 L/min onto
the sensor.
Ensure that the
measuring cuvette is
thoroughly purged
with the selected
zero gas
(min. 30 seconds,
to be adapted to the
local conditions).
Put the magnetic
Green and yellow
wand on the » 0 «
are on
mark and hold it
there.
Remove the
Green / yellow flash
magnetic wand.
alternately and slowly
Display of the zero-point deviation:
Wait approx. 1 to
Green status light
2 minutes, until the
flashes a single rhythm:
yellow status light
goes out. The
Green status light
flashing rhythm of the
flashes a double rhythm:
green status light
indicates the current
zero-point deviation.
Green status light
flashes a triple rhythm:
Output Signal Meaning
Measuring
Unlock device for zero-point
mode
calibration.
Measuring
Device awaits start of
mode
calibration.
(Timeout after approx. 5 sec.)
Maintenance
The calibration routine is
signal
started.
(Timeout after approx. 4 min)
Maintenance
Confirm that the gas
signal
transmitter was purged with
the chosen zero gas.
Maintenance
Device determines the current
signal
zero-point deviation.
(Timeout after approx. 15 min)
Maintenance
The zero-point deviation is
signal
less than the set "calibration
range limit".
Maintenance
Slight zero-point deviation.
signal
Maintenance
The zero-point deviation is
signal
larger than ±3 %LEL.
(Timeout after approx. 15 min)
Action
Status Indicator
Carry out a zero adjustment:
Put the magnetic
Green and yellow
wand on the » 0 «
are on
mark and hold it there.
Remove the
Green / yellow flash
magnetic wand.
alternately
The gas transmitter automatically terminates the calibration, then switches back to normal
operation (green signal light on).
After finishing the calibration process or after exceeding the timeout value, shut down zero gas
supply and remove the gas supply accessories used in the calibration process, if necessary.
Span Calibration Dräger PIR 7000 / Dräger PIR 7200
Action
Status Indicator
Prepare device for span calibration:
Put the magnetic
Green / yellow flash
wand on the »S «
alternately and quickly
mark and hold it there.
Remove the
Green and yellow
magnetic wand.
are on
Initiate the span calibration:
Place the magnetic
wand within 2
seconds on marking
» S « for at least
1 second and then
Green / yellow flash
remove it.
alternately
Place on calibration
adapter PIR 7000.
Feed the calibration
gas to the sensor at a
rate of 0.5 L/min.
Ensure that the
measuring cuvette is
purged with the
appropriate
calibration gas
(min. 30 seconds,
to be adapted to the
local conditions).
Put the magnetic
Green and yellow
wand on the »S «
are on
mark and hold it there.
Remove the
Green / yellow flash
magnetic wand.
alternately and slowly
Output Signal
Meaning
Maintenance
Adjustment is acknowledged.
signal
Maintenance
Zero adjustment is terminated.
signal
Output Signal Meaning
Measuring
Unlock device for span
mode
calibration.
Measuring
Device awaits start of
mode
calibration.
(Timeout after approx. 5 sec.)
Maintenance
The calibration routine is
signal
started.
(Timeout after approx. 4 min)
Maintenance
Confirm that the gas transmitter
signal
is completely purged with the
corresponding calibration gas.
Maintenance
Device determines the current
signal
deviation.
(Timeout after approx. 15 min)
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