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

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Maintenance
9.2

Span calibration VarioGard 3000 EC / VarioGard 3200 CAT

Action
Status display
Prepare the device for span 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 devices to be
calibrated (individual or
groups of the same type
or all transmitters).
Set the maintenance mode green flashes
Insert the instrument for the span calibration:
Place the magnetic wand
on the marking »
« for
2 seconds and then
remove it again.
Attach the calibration
adapter VarioGard 3000.
green/yellow
Expose the transmitter to
flashes alter-
calibration gas with min.
nately
0.5 L/min.
Ensure that the sensor is
fully purged with the
selected calibration gas.
40
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.
Action
Status display
Stabilise the span signal:
yellow flashes
slowly
Continue supplying the
yellow flashes
selected calibration gas.
quickly
yellow on
Carry out sensitivity adjustment:
Place the magnetic wand
green flashes
on the marking »
«
for 2 seconds and then
remove it again.
Stop the calibration gas.
When the action has been completed, the transmit-
Remove the calibration
ter must be switched back to measurement mode
adapter VarioGard 3x00.
using the VarioCal software, or if no actions have
Ensure that the transmitter
been carried out on the transmitter for 3 hours, it
is no longer being purged
will automatically switch from maintenance mode
with calibration gas.
to measurement mode. The calibrations that were
successfully carried out will be accepted.
Output sig-
Meaning
nal
Measurement value
within the calibra-
tion range.
Mainte-
Stability of meas-
nance mode
urement value 2
times greater than
calibration limit.
Measurement value
within the calibra-
tion range.
Mainte-
Stability of meas-
nance mode
urement value 1
times greater than
calibration 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
Dräger VarioGard

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