Selecting The Measuring Method - wtw pH/ION 7320P Operating Manual

pH/ION 7320
ba75935e04 12/2017
8.3

Selecting the measuring method

The following methods are supported:
 Standard addition
 Standard subtraction
 Sample addition
 Sample subtraction
 Blank value addition
1. Connect the ISE combination electrode to the meter.
The pH/ISE measuring window is displayed.
2. If necessary, select the ISE display (unit, mg/l) with <M>.
3. If necessary, measure the temperature of the test sample with a ther-
mometer.
4. Open the ISE menu with <MENU/ENTER>.
5. Thoroughly rinse the electrode with distilled water.
6. Adjust the temperature of the standard solutions.
7. Select Method with <> <> and confirm with <MENU/ENTER>.
8. Select a method with <> <> and confirm with <MENU/ENTER>.
ISE
Calibration
Man. temperature
ISE setup
:
Method
Start method
Back
9. Select Start method with <> <> and confirm with <MENU/
ENTER>.
Measurement with the selected method begins (see section 8.3.1
S
TANDARD ADDITION
BLANK VALUE CORRECTION
:
25 °C
Standard addition
12.12.2012
12:12
, page 54 ... section 8.3.5 S
(B
LANK VALUE ADDITION
Ion concentration
TANDARD ADDITION WITH
), page 63).
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