FISCHER 205M, User Manual, Page: 18 / 21

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Barograph User’s Manual
5.6 Troubleshooting
Error Possible Cause Solution
The barograph is not
recording
The fiber pen is not touching the
recording drum.
Move lever to the right.
The protective case has not been
removed from the fiber pen.
Remove the protective case.
The fiber pen has dried up.
Dampen the pen with a drop of
vinegar.
The fiber pen is used up. Change pen.
The recording drum
does not rotate
The recording drum is not set on the
clockwork axle properly.
Gently rotate the drum until you
feel the gears engage.
The clockwork has not been prop-
erly wound.
Fully wind the clockwork.
Gears are not engaged properly.
Reset the drum revolution cycle,
paying close attention to the gears
Battery is dead. Change battery.
The barograph records
a constant pressure
The pen-arm is touching the Disen-
gaging rod.
Press lever completely to the right.
Time measurements
on the chart paper do
not correspond with the
rotation of the recording
drum
The wrong chart paper is being
used.
Make sure the chart paper cor-
responds with the drum revolution
cycle.
The battery is dying. Change battery.
The barograph is
recording the wrong
values
The chart paper used does not
correspond with the range of the
barograph.
Make sure you are using the cor-
rect chart paper.
The chart paper is not correctly
aligned.
Reset chart paper making sure the
bottom edge is properly aligned
with the base of the recording
drum.
Pressure correction not set. Correct the pressure adjustment.
Pressure correction drifted. Correct the pressure adjustment.
The barograph pen-arm
hangs down
The precision movement is not con-
nected to the pen-arm.
Reconnect the arm with the move-
ment (see Start up notes).