MSA SUPREMATouch - First Calibration

MSA AUER
MSA
Startup
SUPREMATouch
223
US
- The output is permanently at alarm status.
Acknowledgement by pressing the ACKNL key:
- The output is at alarm status, unless the parameter setting is “new Alarm” (i. e. actual alarm).
- The output changes to “normal status”, if the parameter setting is “new Alarm” (i. e. actual
alarm).
The signal is no longer outside the alarm limits, and the ACKNL key has not yet been pressed:
- The output is permanently at alarm status.
The signal is no longer outside the alarm limits, and the ACKNL key has been pressed:
- The output is at alarm status, unless the parameter setting is “new Alarm” (i. e. actual alarm).
- The output changes to “normal status”, if the parameter setting is “new Alarm”. If after 24 hours
the signal is still outside the alarm limits, the output changes again to alarm status and can be
acknowledged again.
The signal is no longer outside the alarm limits, the ACKNL key has been pressed, and the RESET
key is being pressed:
- The output changes to “normal” status
If the signal is still outside the alarm limit, or if the ACKNL key has not yet been pressed, pressing
the RESET key has no effect.
11.4 First Calibration
NOTE: Under certain conditions, some of the maintenance and service functions described here
can be nonfunctional when older versions of the hardware and software of the SUPREMA system
are being used. For detailed information on this, please contact the MSA Customer Service office
in your area.
Active Sensors
A first calibration on the SUPREMA system is not required for active sensors (sensors with a 4 ...
20 mA output). The first calibration is to be performed directly at the sensor in accordance with the
operating and maintenance instructions of the sensor. As default values, the SUPREMA system
interprets an input current of 4 mA as 0% of the measuring range and an input current of 20 mA
as 100% of the measuring range.
NOTE: In the case of sensors which do not send a maintenance level during calibration, it is rec-
ommended that the input be inhibited in the “Setup/Measure Points” menu during the first calibra-
tion.
NOTE: As part of the startup procedure, it is recommended that the correctness of the displayed
values be checked either by supplying gas to the sensors or by supplying a constant current to
the MAT module from a source of constant current. The method for correcting the 4 ... 20 mA
input is described in chapter 11.4.