REV 0, June 2005 Page 183
Operation Manual SUPREMA
6. Startup
6.5 Preliminary 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.
6.5.1 Passive Sensors
After the sensors have been allowed sufficient recovery time, which depends on the sensors
and on the measuring components (see the appropriate sensor data sheets), the preliminary
calibration for passive sensors must be performed on the SUPREMA system.
Note: At least 2 people are required to perform the preliminary calibrations. To
avoid communication problems between Person 1 operating the SUPREMA and
Person 2 supplying the sensors with gas, we recommend the usage of a set of
appropriate two-way radios.
In addition, the required zero and test gases as well as test adapters and hose connections
(see the sensor operating and maintenance instructions) for supplying the gas are a necessary
precondition for the successful completion of the preliminary calibrations.
The duration and flow rate of the zero gas and test gas can be found in the he associated
sensor operating and maintenance instructions.
Attention: The preliminary calibration may not be performed until after the
preliminary adjustment of the MAI module in accordance with Section
Preadjustment of Passive Sensors, has been properly completed for all connected
passive sensors.
6.5.2 Presetting of Passive Sensors
For the preliminary calibration, the following steps must be completed by person 1 (at the
SUPREMA) and by person 2 (at the sensor in question):
Person 1:
• Select the “Maintain/Calibration” menu.
• Select the input to be calibrated in the “Measuring Point” option field.
• Enter the gas concentration in the “Zero Gas” field.
Note: The concentration of the test gas in the zero gas is to be entered in this field
(usually 0%), not the concentration of the zero gas!
Attention: The value must be identical to the lower limit of the measuring range;
that is, it must be equal to zero.
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