MSA SUPREMATouch MCP 20, Руководство по эксплуатации

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Calibration
GB
SUPREMATouch
NOTICE
If the value is below the zero adjustment range, the separate zero setting is cancelled and a
warning is displayed. Exceeding the calculated span value is also invalid and results in cancelling
of the separate zero setting. It is then recommended that a complete calibration is carried out and
if necessary, the sensor is replaced.
NOTICE
After the separate zero setting, no SPAN value is shown in the calibration menu and in the logbook
for these settings.
7.7 Calibration of Groups of Measuring Points
When a group of measuring points is defined and parameterized as calibratable, the complete
group can be set to calibration mode at once. The start screen and the values that have to be
entered are similar to a calibration of a single measuring point.
After pressing the appropriate Start button for 1- or 2-man calibration, all measuring points of the
group will be set to calibration mode. Afterwards a list with all measuring points and their calibra-
tion status will be shown. The calibration process is similar to a single point calibration. The current
value of the selected measuring point can be taken over by pressing the
Store button or by
entering the single point calibration mask by double tapping the measuring point.
7.8 Remote Calibration of Transmitters
When a digital communication between the SUPREMA and a supported transmitter is available,
e.g. a HART enabled PrimaX is connected to a MAI30 with MHS30 module, it is possible to cali-
brate the transmitter itself remotely controlled from the SUPREMA.
For a remote calibration, the following steps must performed:
(1) Select Maintain/Calibration/Remote .
(2) Select input to be calibrated in Measuring Point field.
(3) Enter gas concentration in Zero Gas field.
(4) Enter test gas concentration in Test Gas field.
(5) If test gas used is different from reference gas entered in the Setup/Inputs&Outputs/
Measuring points menu, change the entry in field Test Gas of the Calibration submenu.
(6) Select the calibration mode.
Not all modes may be supported by the connected transmitter.
(7) Start calibration with Start .
(8) Follow the transmitter dependent instruction shown on the SUPREMA display.
7.9 Setting the Bridge Current
Before a passive sensor can be calibrated and used, the bridge current has to be set according
to the sensor manual. The value to be set can be gas dependent. After a change of the bridge
current, a new warm-up time has to be considered.
Setting the bridge current requires an already parameterized measuring point.
The measuring gas, range and dimension have to be similar for all measuring points in
a group if the group should be used for this calibration process. A group can contain up
to 32 measuring points.
A setting that has been started or carried out cannot be canceled or discarded.