Metrohm 805 Dosimat User Manual
Page 24
6.1 Problems
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16
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805 Dosimat
Problem
Cause
Remedy
The exchange unit
cannot be removed
and the LED "Status"
is flashing slowly.
It is being dosed or filled
and/or the Dosimat is not in
the exchange position.
Stop the run or carry out a "filling".
The exchange unit
cannot be removed
from the Dosimat.
Piston and/or flat stopcock
are not in filling position.
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Carry out the [Filling] on the control device.
Check the cable connections to the control
instrument.
■
Switch the instrument off and on again.
The flat stopcock is
blocked.
The flat stopcock is conta-
minated, corroded or worn
out.
■
Carefully loosen the flat stopcock out of its
holder and switch the control device off and
on again.
■
Put the flat stopcock into water with a small
amount of dishwashing detergent or into
ethanol and eventually clean it with ultra-
sonic. Rinse it thoroughly and place it again
into the flat stopcock holder.
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Replace the defectous flat stopcock.