Navigator 500
Sodium analyzer
8 Maintenance
OI/ASO550–EN Rev. G
61
8.2.3 12-Monthly
1. Check the condition of all plastic tubing; replace it as
required – refer to Section 8.6, page 65 for multi-stream
wet-sections or Section 8.7, page 67 for single-stream
wet-sections.
2. Clean the flowcell and the Pt1000 temperature
compensator to remove any deposits.
Referring to Fig.8.2:
a. Remove the Pt1000 temperature compensator
A
by
unscrewing the compensator sleeve
B
and
withdrawing the Pt1000 temperature compensator
from the flowcell
C
.
b. Clean the Pt1000 temperature compensator
A
and
flowcell
C
using high purity water.
c. When replacing the Pt1000 temperature compensator,
ensure that the O-ring
D
is in place below the flange
on the compensator, and the skid washer
E
is in
place above the flange.
8.3 Automatic regeneration
The regeneration valve is energized for 1 minute. The analyzer
then starts a 2-hour regeneration recovery period. After the
recovery period a two-point calibration is initiated automatically.
A scheduled regeneration does not commence if the
No
Samples
diagnostic (see Appendix A.1, page 72) is active.
It is not advisable to perform a manual regeneration procedure
(see Section 8.4, page 63) if the
No Samples
diagnostic is
active.
To start an automatic regeneration:
1. Press the
key (below the
icon).
The
Operator
menus are displayed:
2. Press the
key to scroll to the
Enter Configuration
menu
and press the
key (below the
icon).
The
Access Level
page is displayed:
3. Use the
key to scroll to the
Advanced
access level
and press the
key (below the
Select
prompt) to enter
the top level
Configuration
menus.
Fig. 8.2 Cleaning the flowcell and Pt1000 temperature
compensator
Note.
If it is detected that no regeneration solution is
present, the regeneration valve is de-energized
automatically and a recovery period is initiated. A two-point
calibration is initiated after the recovery period.
CAL
2012–04–15
10 : 34: 52
°C
21.7
21.7
2.93
Navigator
Tag 1
Na
ppb
2012–04–15
10 : 34: 52
°C
21.7
21.7
4.28
4.28
Navigator
Operator Pages
Data Views
Logs
Alarm Acknowledge
Manual Hold
Autoscroll
Media Card
Enter Configuration
ppb
Access Level
Back
Select
Read Only
Calibrate
Advanced
Service