MSA SUPREMA Touch, Installation & Maintenance Instructions Manual, Page: 96 / 309

MSA AUER
MSA
Maintenance and Service
SUPREMATouch 95
US
The message “signal failure” is transmitted when:
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the signal is outside the measuring range;
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an interruption or short-circuit has occurred in the sensor cable;
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an MAI module is being replaced without the associated measure points having been inhibited
first; or
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an MPI or MCI module not corresponding to the type of sensor connected is being used.
Configuration Changes History
Changes of measure point parameters are stored here.
An entry includes the following data:
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date/time the configuration was accepted as valid from the Measure Point menu;
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measure point number;
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name of the changed parameter and
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new value of the changed parameter
Supply Voltage History
This records when the supply voltage exceeds or falls below the limit value [internal supply, ex-
ternal supply, battery backup]. An entry is made each time a new maximum or minimum value for
a power source is measured.
The entry contains:
-
date and time of the voltage measurement
-
name of the supply source
-
measured voltage value
Processor Temperature History
This records when the temperature of the processor on the MDA module exceeds or falls below
the limit value.
When a temperature value leaves the allowed range and exceeds or falls below a limit value, the
actual temperature value is stored; when the temperature returns to the allowed range, the peak
value which occurred during the deviation is stored.
An entry contains:
-
the date and time when the temperature exceeded or fell below the limit;
-
the serial no. of MDA module;
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the temperature value and
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information on whether the incident involved a departure from the allowed range or a return to
the allowed range.
The limit values for the supply voltage are:
Minimum value: 19.2 VDC
Maximum value: 32.0 VDC