wtw pH 3110 - Page 23

pH 3110 Operation
23
ba75791e02 11/2008
Note
Here you can cancel the calibration procedure with <M>. This
corresponds to a single-point calibration. The value of the zero point
(ASY) is displayed. Pressing <ENTER> displays the value of the slope
(SLO).
Continuing with two-
point calibration
Note
Here you can cancel the calibration procedure with <M>. This
corresponds to a two-point calibration. The value of the zero point
(ASY) is displayed. Pressing <ENTER> displays the value of the slope
(SLO).
Continuing with three-
point calibration
5 Thoroughly rinse the combination electrode with distilled water.
6 If necessary, set the temperature of the second buffer solution
with <▲><▼>.
7 Immerse the combination electrode in the second buffer
solution.
8 Press the <ENTER>
key.
The AR display indicator flashes.
The electrode voltage (mV) or the nominal value of the buffer
(setting: see section 4.5.2) is displayed. As soon as a stable
value is recognized, Ct3 or Cd3 appears.
8
4
2
3
T
C
°
C
pH
AutoCal TEC
TP
8
4
2
3
D
C
°
C
pH
AutoCal DIN
TP
9 Thoroughly rinse the combination electrode with distilled water.
10 If necessary, set the temperature of the third buffer solution
with <▲><▼>.
11 Immerse the combination electrode in the third buffer solution.