Trans instruments WalkLAB HP 9010 Operation Manual page 10

7.9 Value will vary according to solution's temperature listed below:
Temperature
(°C)
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
7.10 If the meter does not recognize the buffer, it means the electrode
could be defective or the buffer solution is wrong.
cannot proceed until they are rectified.
7.11 When the meter beeps, Offset point is established.
7.12 Now 1.68, 4.01, 10.01 and 12.45 will alternate on main display.
7.13 Rinse the pH electrodes and temperature probe in distilled water,
blot or shake dry then dip into next slope buffer solution.
7.14 When the meter recognizes the buffer, it displays in blinking mode.
7.15 If the value is different from that of the buffer solution then the
electrode could be damage.
7.16 When the meter starts beeping, a Slope point is established. The
remaining slope values will alternate on the main display.
7.17 Repeat step 7.13 to 7.16 sequentially up to 4 slope points.
7.18 At least 2 calibration points (offset & slope) must be established in each session
of calibration. Otherwise, the whole calibration will not register.
7.19 When calibration is completed, press
points and to return to normal measuring mode.
7.20 Anytime during calibration, press
ISO standard buffer solution
Slope Offset
1.68 7.00
1.67 7.11
1.67 7.08
1.67 7.06
1.67 7.03
1.68 7.01
1.68 7.00
1.69 6.98
1.69 6.98
1.70 6.97
1.70 6.97
1.71 6.97
1.72 6.97
1.72 6.97
1.73 6.97
1.74 6.98
1.75 6.99
1.77 7.00
1.78 7.02
1.80 7.03
1.81 7.05
EXIT
9
Slope Slope
4.01 10.01
4.00 10.32
4.00 10.25
4.00 10.18
4.00 10.12
4.00 10.06
4.01 10.01
4.02 9.97
4.02 9.93
4.03 9.89
4.04 9.86
4.05 9.83
4.06
4.08
4.10
4.12
4.14
4.16
4.18
4.21
4.24
to store all calibrated
ENTER
for 2 seconds will abort all.
Slope
12.45
13.43
13.21
13.00
12.81
12.63
12.45
12.29
12.13
11.99
11.84
11.70
11.57
11.45
Calibration