Setup; Setting-Up The Wet-Section; Fitting The Electrodes - ABB Navigator 500 Series Operating Instructions Manual

Navigator 500
Sodium analyzer

4 Setup

This section describes how to set the analyzer up for first-time
use.
If multiple wet-sections are to be connected to a transmitter, an
additional setup procedure is required – see Appendix C, page
78.
Caution. Do not attempt to setup the analyzer unless the
wet-section and transmitter are fully installed and ready for
operation.

4.1 Setting-up the wet-section

4.1.1 Fitting the electrodes

Note. O-rings must be fitted correctly and the inside of the
electrode connectors must be dry and completely sealed
(moisture reduces the circuit impedance and affects the
wet-section performance).
Referring to Fig. 4.1:
1. Unpack sodium electrode
rubber teat – retain the teat for storage. Unscrew (but do
not remove) plastic sleeve
A
fully into plastic sleeve
2. Carefully tighten plastic sleeve
A
in place) until electrode bulb
D
O-ring .
Position the sodium electrode so that, when the plastic
sleeve is tightened against O-ring
is just above the bottom of the flowcell chamber
F
3. Ensure O-ring is fitted at the top of the sodium
electrode.
4. Connect red-sleeved sodium connector
the sodium electrode and tighten.
5. Unpack reference electrode
teat – retain the teat for storage.
6. For systems without an optional reservoir, unplug the
black rubber filling hole plug
electrode has sufficient solution – top up if necessary).
For systems with an optional reservoir fitted, proceed to
step10, then connect the reservoir tube to the reference
electrode arm as described in Section 4.1.2, page 20.
OI/ASO550–EN Rev. G
A
and carefully remove the
B
and slide sodium electrode
B
.
B
(with sodium electrode
C
passes through
D
, the electrode bulb
E
.
G
to the top of
H
and remove the rubber
I
(check the reference
7. Remove the supplied O-ring
the top of the right-hand chamber) and fit it over the
reference electrode body.
8. Carefully position the reference electrode centrally in the
K
right-hand chamber
between 5 and 10 mm (0.2 to 0.4 in.) from the bottom of
the chamber.
M
9. Ensure O-ring is fitted at the top of reference
electrode.
10. Connect black-sleeved reference electrode connector
to the top of reference electrode and tighten.
5 – 10 mm
(0.19 to 0.38 in.)
Fig. 4.1 Fitting the sodium and reference electrodes
4 Setup
J
(temporarily secured to
L
so that the ceramic plug is
N
19