12
…3
MECHANICAL INSTALLATION
5
Filler Plug
Reservoir
Reservoir Rod
Reservoir Tube
'O' Ring
Fit the reservoir rod into
the sensor holder by
inserting it firmly and fully
into the correct location.
Unscrew the reservoir tube connector
fitting
2
from the sensor holder ensuring
the plastic ferrule
3
is retained.
Slide the connector fitting over the tube,
then the ferrule.
Fill the reservoir with saturated
KCl solution and squeeze the
delivery tube repeatedly until all
air is expelled from the system.
The filler plug also acts as a
shut-off valve. Do not tighten it
fully (unscrew one turn from
fully closed position) to avoid
creating a vacuum.
Filler Cap
Sensor Holder
1
Push tubing onto the fitting on the
sensor holder.
Tighten the connector firmly.
2
3
4
6
a) – Partially Assembled Reservoir
b) – Fully Assembled Reservoir
c) – Filling the Reservoir
Pull off the filler cap.
6
7
Replace the filler cap ensuring
the 'O' ring is in place.
8
9
Note
. Ensure that the reservoir
tube is not kinked and does not
contain air bubbles.
3.4
Fitting the Reservoir – Models 7651, 7652, 7660 and 7661 – Fig. 3.12
The reservoir comes partially assembled as shown in Fig. 3.12a.
Complete the assembly and fill the reservoir as shown in Fig. 3.12b and Fig. 3.12c respectively.
Fig. 3.12 Fitting and Filling the Reservoir
(Electrodes and Temperature Compensator Omitted for Clarity)
Caution
. Wear eye protection
when filling the reference
electrode with electrolyte.
