8.3 Case Care
The case, front window and pen arms of the recorder should be cleaned with a
mild soap solution. Under no circumstances should you use an alcohol or
solvent based cleaner anywhere on this recorder.
8.4 Storage of Chart Paper
For optimum performance, store the chart paper in the plastic bag provided.
Store the paper in rooms that have humidity levels lower
than 80% relative
humidity.
8.5 Power Failure Mode (Chart Paper Indication)
The chart paper indicates when the ac power failure occurred, the battery back
up period and when the ac power returns. It is important to have fresh “D” size
batteries in the recorder for battery backup so you have continuous recording.
Figure 8-3 shows an example of chart paper with the power failure lines.
Figure 8-3. ac Power Failure Indication on Chart Paper
8.6 Sensor Maintenance
Under normal operating conditions the sensor requires no maintenance.
However, the sensor should not be used in a corrosive air environment, even for
limited time frames. The sensor electronic components are very sensitive, and
will not perform to spec if chemically degraded.
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