Data Entry Of Premeasured Electrodes - Honeywell APT4000PH User Manual

Data entry of premeasured electrodes

You can directly enter the values for slope and asymmetry potential of an elec-
trode. The values must be known, e.g. determined beforehand in the laboratory.
The DAT calibration mode must be preset in the configuration mode.
Display Action
Press CAL key, enter code 1100
Select with
edit number with
proceed with ENTER
Ready for calibration
ENTER
Start with
Enter asymmetry potential [mV].
Select with
edit number with
proceed with ENTER
Enter slope [%].
Select with
edit number with
proceed with ENTER
The APT4000PH displays the new
slope and asymmetry potential
(at 25 °C).
Proceed with ENTER.
pH value and Hold are displayed
alternately.
Proceed with ENTER.
Hold is deactivated after 20 sec.
72
Remark
If an invalid code is
key, entered, the
key, APT4000PH returns
to measuring mode.
Analyzer in Hold
mode, measured
.
value frozen.
Sensoface inactive.
key,
key,
key,
key,
Security prompt.
APT4000PH
Convert slope [%] to slope [mV/pH] at 25 °C:
% mV/pH
78 46.2
80 47.4
82 48.5
84 49.7
86 50.9
88 52.1
90 53.3
92 54.5
94 55.6
96 56.8
98 58.0
100 59.2
102 60.4
Converting
asymmetry potential in electrode zero point:
V [mV]
AS
ZERO = 7 -
S [mV / pH]
Electrode zero point
ZERO
Asymmetry potential
V
AS
S
Slope
73