Navigator 500
Sodium analyzer
5 Calibration
OI/ASO550–EN Rev. G
25
5.5.4 Process calibration procedure
The process calibration procedure can be used to make minor
adjustments to the concentration value. When a process
calibration procedure has been run and has completed, a
Process Calibration
(PC) offset is calculated. Subsequently, the
displayed concentration has this offset in concentration
subtracted from the measured sodium concentration.
The following steps describe how to take a sample from the
wet-section for independent tests and adjust the sodium
concentration reading accordingly. If the sodium concentration
is already known, steps 1 and 10 can be omitted.
To run a
Process Calibration
procedure:
1. Obtain a clean sample vessel of suitable size for the
volume of sample required.
At the transmitter:
2. Press the
key (below the
icon).
The
Operator
menus are displayed:
3. Press the
key to select the
Enter Configuration
menu
and press the
key (below the
icon).
The
Access Level
page is displayed:
4. 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.
5. If the
Calibrate
page is not displayed, use the
/
keys to scroll to the
Calibrate
page:
6. Press the
key (below the
Select
prompt).
–
If one or more single-stream wet-sections are
connected, the
Calibrate
/
Sodium 1 (2, 3, 4)
page is
displayed:
–
If a multi-stream wet-section is connected, the
Calibrate
/
Sodium Three Stream
page is displayed:
Note.
Process calibrations should be used only to make
minor adjustments to the concentration value. If the
displayed concentration differs significantly from the
expected concentration, perform a
Two-Point
calibration from the
Calibrate
level – see Section
A process calibration can be carried out only on
single-stream and multi-stream wet-sections with 1
stream enabled.
CAL
2012–04–15
10 : 34: 52
°C
21.7
21.7
2.93
Navigator
Na
Tag 1
ppb
2012–04–15
10 : 34: 52
°C
21.7
21.7
4.28
4.28
Operator Pages
Navigator
Data Views
Logs
Alarm Acknowledge
Manual Hold
Autoscroll
Media Card
Enter Configuration
ppb
Access Level
Calibrate
Advanced
Service
Back
Select
Read Only
Menu
Calibrate
Exit
Select
Sodium 1
Calibrate
Back
Select
Calibrate
Sodium Three Stream
Back
Select