Metrohm 753 Suppressor Module - Manual (Page 36)

4.2 Maintenance and servicing
753 Suppressor Module / 8.753.1003 Instructions for Use
33
6 Insert connection piece
• Insert new connection piece 36 36 in suppressor holder 38 38 in
such a way that connection "1" is at the top and that the three
lugs on the connection piece fit in the corresponding open-
ings of the holder.
• Screw nut 35 35 onto the thread of suppressor holder 38 38 manu-
ally (do not use tools).
7 Connect and condition the suppressor
• Reconnect the suppressor to the IC system (see section 2.3.2
and section 2.4.2).
• Before switching the suppressor to the next position for the
first time rinse all 3 suppressor units with solution for 5 min.
8 Check braking range
• Check the braking range of the suppressor according to
section 4.2.8 and readjust if necessary.
4.2.8 Braking range adjustment
It may be necessary to readjust the braking range of the 753 Suppres-
sor Module in the following cases (see also section 4.1):
• Suppressor switches to next position but display lamp 77
no longer lights up
• When the suppressor is exchanged (see section 4.2.7)
The braking range is adjusted by means of adjustment screw 18 18
"Breakpoint ∆ t" on the rear panel of the 753 Suppressor Module. Pro-
ceed as follows:
1 Condition the suppressor
• If the suppressor has been cleaned or exchanged then before
switching the suppressor to the next position for the first time
all 3 suppressor units must be rinsed with solution for 5 min.
2 Check the position of the suppressor rotor
• Switch the instrument off and then on again. Switch off sup-
pressor remote operation with key 66 and oper-
ate key 88 .