YSI P 700 IQ Analyzer - Manual (Page 92)

92 ba76133e01 09/2013
P 700 IQ
7 Switch on the filtration pump with the Start/Stop key.
8 Make the filtration pump work for some time to remove the deter-
gents completely.
Restarting the
measuring operation
9 Carry out the steps 13…20 in section 5.3.4 Maintenance and
cleaning work on the open P 700 IQ,  73.
5.4.6 Exchanging the filter membrane
Maintenance interval As necessary, if cleaning does not help.
Proceed as follows to exchange the filter membrane:
Preparations 1 Carry out the steps 1…11 in section 5.3.4 Maintenance and
cleaning work on the open P 700 IQ,  73.
2 Switch off the filtration pump (with the Start/Stop key, or switch off
the whole analyzer).
3 Remove the filtration unit from the medium.
4 Clean the filtration unit.
5 Dismount the filter module from the slide.
6 Unscrew the V4A countersunk screws of the fixing ring (12 hexa-
gon sockets).
7 Remove the used membrane inset.
8 Clean the enclosure and seals.
9 Check that the enclosure seals are correctly positioned and
grease them slightly.
10 Insert a new membrane inset in the lower part of the enclosure.
ATTENTION
If the membrane insert is removed it must be replaced.
The filter membrane is easily damaged. Never touch the
membrane with sharp-edged objects or place any
objects on it.