DR4300 Circular Chart Recorder
160 DR4300 Circular Chart Recorder Product Manual 4/00
6.4 Maximizing Pen Life
Steps for maximizing pen life
Table 6-3 lists steps that will help maximize the life of recorder pens.
Table 6-3 Maximizing Pen Life
Step Action
1
Store the chart paper in a cool, clean dry place where the temperature does not exceed 40 °C
(104 °F) and the humidity is below 65 % RH.
2
Do not expose the pen tip and chart paper to abrasive chemicals or dust that cause excessive
pen wear.
3
If the recorder is used in a dusty atmosphere, provide a positive ‘clean air purge’ to minimize
dust particle accumulation on the chart paper.
4
Periodically clean the pen arm using a cotton swab dipped in alcohol. This is more important
when the recorder is located in a dusty environment and no ‘clean air purge’ is used.
5
Never let the pen tip ride on the chart plate when the paper is not present. Use the pen lifter to
raise the arm when changing the paper.
6
Keep the door closed while recording.
7
Always cover the pen arm tip with its protective cap when storing or shipping the recorder.
8
Be sure that the chart paper lays flat against the chart plate. Any ripple in the paper will cause
light pen printing.
9
Be sure the chart hub assembly is pushed onto the motor shaft so that it is flush with the chart
plate.
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