ABB 7651 Instruction Manual page 11

See Fig. 3.6 for models 7651, 7652, 7660 and 7661, or Fig. 3.7
models 7654, 7655, 7656, 7664 and 7665, to access the sensor
holder.
3
Thread the
connecting cable
tag ends through
the cable gland
at the top of the
cover.
1
Loosen the
gland nut.
2
Remove the
top cover by
pulling it off.
4
Unscrew and
remove clamp
ring.
5
Slide off
stem flange.
6
Remove sensor
holder from the
flow chamber.
Fig. 3.6 Access to Sensor Holder for Flow and
In-line Systems – Models 7651, 7652, 7660 and 7661
C o n n e c t i n g
Cable
Gland
Nut
Top
Cover
Stem Flange
Locating Groove
Lower
'O' Ring
Reference
Junction
3 MECHANICAL INSTALLATION...
Unscrew and remove the
3
top cover.
Drop the plug end of the
cable assembly down
through the tube and
thread the tagged end
through one of the side
4
ports.
5
Fit the gland
provided, but do
not tighten at this
stage.
2
Carefully withdraw
sensor holder.
1
Unscrew the immersion
skirt. Ensure the lower
'O' ring is not lost.
Note. If using a cleaning option refer to the
appropriate manual (IM/7600–CLN) as the sensor
holder and reference electrode are different.
Fig. 3.7 Access to Sensor Holder for Dip Systems –
Models 7654, 7655, 7656, 7664 & 7665
Side Port
Upper
'O' Ring
Lower
'O' Ring
9