FISCHER 205M, User Manual, Page: 14 / 21

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Barograph User’s Manual
4.4. Starting the Barograph
For instructions on attaching the chart paper see section 5.3 Replacing the Chart Paper.
The Barographs are supplied with two fiber pens. Each pen should last 6 to 8 months under normal
usage. To insert a new pen, remove the protective tip of the fiber pen and attach it to the pen-arm as
shown in the illustrations. Before recording, be sure that the proper chart paper is being used in ac-
cordance with the drum revolution cycle. Adjust the pen-arm’s position using the Pen-arm Adjustment
Screw until the fiber pen touches the chart paper on the recording drum.
Note: This should be set to have the minimum force on the chart that will leave a trace.
You can rotate the drum manually to check this. Too much pressure could mask small
pressure changes.
Then close and lock the housing and the barograph is ready to begin recording.
If desired, the safety lock on the housing can be engaged to prevent unauthorized access to the baro-
graph.
Be sure the pen-arm is not touching the disengagement rod when recording pressures.
Pen-arm Adjustment Screw (inset)