Calibration configuration
Note: This option can also be invoked by pressing the Modify button in either the Zero calibration or High level
adjustment calibration screens.
1.
From the
Main
menu, select
Calibration
followed by
Gas sensor
and then
Configuration
.
Option
Description
Auto-calibration
Not available for this sensor.
Manual-calibration
When
Auto-End
is enabled a manual calibration will complete automatically when the
parameters defined in
Stop parameters
are reached. Press on
Configure
to set the
manual calibration parameters. If the calibration fails, the previous calibration
parameters remain unchanged and a warning message displayed.
Hold during
calibration or
verification
If checked this keeps the last measured value and stops updating the outputs during
the calibration or verification process. This avoids sending invalid information to any
connected device. At the end of a calibration, this hold remains on for a further
10 minutes to allow the system to stabilize.
Zero calibration
bottle
Make sure this is disabled by unchecking the box as it is not relevant for this sensor.
Stop parameters
If this button is pressed you can view or change the existing values or restore the
default values. It is
highly recommended
to leave these parameters at their default
values. These values apply to manual calibrations with the
Auto-End
parameter
enabled.
Configure manual calibration
1.
Set the parameters for a manual sensor calibration:
Option
Description
Calibration mode
Select
Zero calibration
or
High level adjustment
. If using a high range sensor you also
have the option of
100% humid air calibration
.
Note: If zero calibration or 100% humid air calibration is selected, no other parameters
are required. The following are only required for high level adjustment.
Cal. sample
Set to
In line sample
,
Gas bottle
or
Factory parameters
. If factory parameters is
selected, the Ksv value is displayed but can be changed.
These additional parameters are required if in line sample or gas bottle has been
selected as the calibration sample:
Medium
This is automatically set to
Liquid
if in line sample has been selected as the calibration
sample, or
Gas
if gas bottle has been selected.
Gas unit type
Either
Partial
or
Dissolved
are available for an in line sample. If gas bottle was selected
this is set to
Fraction
.
Gas unit
The list of available units depends on unit type selected above.
Liquid
This defaults to
Water
for the K1200 sensor.
Reference value
Enter the reference value for calibration.
Zero calibration
With this method, the sensor should be removed from the sample and exposed to pure N
2
gas. It is
recommended to use the specially designed portable calibration device for this purpose.
Press
Start
to start the calibration.
A screen is displayed showing the measured values and length of time the sensor has been under
calibration. These values are continually refreshed.
The value
% last calibration
is an informational message showing the difference between the
current and previous sensor calibrations.
English
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