Zero-Point Calibration Variogard 3000 Ec / Variogard 3200 Cat - Dräger VarioGard Instrucciones De Uso

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9.1

Zero-point calibration VarioGard 3000 EC / VarioGard 3200 CAT

Status dis-
Action
play
Prepare the device for zero-point calibration:
Using the PC adapter
(order no. 83 22 016),
connect the VarioGard
central unit with the PC.
green on or off
Launch VarioCal software.
depending on
configuration
Select the instruments to
be calibrated (individual
or groups of the same
type or all transmitters).
Set the maintenance
green flashes
mode.
Insert the instrument for the zero-point calibration:
Place the magnetic wand
on the marking »
« for
2 seconds and then
remove it again.
Attach the calibration
adapter VarioGard 3000.
Expose the transmitter to
green/yellow
nitrogen or synthetic air
flashes alter-
with min. 0.5 L/min.
nately
Ensure that the sensor is
fully purged with the
selected zero gas.
Dräger VarioGard
Output sig-
Meaning
nal
Measure-
ment mode
Mainte-
Transmitters switch
nance mode
from measurement
mode to mainte-
nance mode.
Calibration routine
has started. Meas-
Mainte-
urement value out-
nance mode
side the permitted
calibration range.
Status
Action
display
Stabilise the zero-point signal:
yellow flashes
slowly
Continue supplying the
yellow flashes
selected zero gas.
quickly
yellow on
Carry out the zero-point adjustment:
Place the magnetic wand
green flashes
on the marking »
«
for 2 seconds and then
remove it again.
Stop the zero gas.
When the action has been completed and if no sub-
Remove the calibration
sequent span calibration is needed, the transmitter
adapter VarioGard 3x00.
must be switched back to measurement mode using
the VarioCal software, or if no actions have been
carried out on the transmitter for 3 hours, it will auto-
matically switch from maintenance mode to meas-
urement mode.
Maintenance
Output
Meaning
signal
Measurement value
within the calibration
range.
Mainte-
Stability of measure-
nance mode
ment value 2 times
greater than calibra-
tion limit.
Measurement value
within the calibration
range.
Mainte-
Stability of measure-
nance mode
ment value 1 times
greater than calibra-
tion limit.
Measurement value
within the calibration
Mainte-
range.
nance mode
Stability of measure-
ment value is OK.
Can be adjusted.
Mainte-
Being adjusted.
nance mode
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