SUPREMATouch
94
Maintenance and Service
MSA
US
Logbook Functions
The logbook is divided into seven history menus:
- Calibration
- System Events
- Alarm Events
- Signal Events
- Changes
- Supply Voltage
- Processor Temperature
The History entries are shown as list view in chronological order.
NOTE: You can scroll vertically and horizontally through the lists by dragging and dropping it to
the desired position.
Calibration History
The date/time of the last four calibrations and last presettings are stored here for each measure
point. If there are more than 4 calibration entries, the oldest calibration entry is overwritten. Ex-
ception: the first calibration is always kept.
The presetting entries are overwritten with the next similar presetting. Basically, every presetting
deletes all calibration entries of the corresponding measuring point.
In addition, the test and zero gases used [type of gas, concentration, and unit] are also stored as
well as the associated signal voltage values [preamplified signal UA and difference voltage Ux].
On the basis of the gas concentration, it is possible to use these values to determine the percent-
age by which the sensor signal has decreased.
NOTE: The signal voltage values [preamplified signal UA and difference voltage Ux] and the unit
are visible on the MDO module display only after scrolling.
System Events History
System events are recorded for service purposes. These serve as a source of information for the
MSA service personal.
Alarm Events History
Crossings of the alarm threshold, confirmations and resets of alarms are stored in this history. The
date/time of the incident, the measure point involved and a short description are given.
When an alarm limit is crossed, the alarm number [1st, 2nd, 3rd, 4th alarm] is also recorded.
Signal Events History
Signal failures, confirmations and resets of signal failures as well as primary power system chang-
es are stored in this history. The date/time of the incident, if applicable, the measure point involved
and a short description are given.
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