14
For each measurement mode (pH, mV, Rel mV, Ion, Conductivity, Resistivity, TDS or Salinity) the following
display configurations are available: Basic, Good Laboratory Practice (GLP), Graph and Log History.
Basic
Accessing this option, the measured value and its units are
displayed on the LCD, along with the temperature value, tem-
perature compensation mode, and minimal GLP data.
To choose the Basic displaying mode:
• Press
while in
Measure
mode. The “Choose Display
Configuration” message will be displayed in the Reminder
messages area.
• Press . The instrument will display the basic infor-
mation for the selected measurement mode.
GLP
Accessing this option, a detailed GLP data will be displayed on
the LCD for pH / ISE: Last Calibration Date and Time, Offset and
Slope values, Calibration Buffers, Electrode Condition and for
conductivity / salinity: Last Calibration Date and Time, Calibra-
tion Standards, Cell Constant, Probe Offset, Reference Temperature,
Compensation Coefficient, Temperature Compensation.
Note: If only a one-point pH calibration is performed or the current
calibration does not include at least two consecutive standard
buffers of pH 4.01, 7.01 (6.86) and 10.01 (9.18) buffers, the
Electrode Condition will be unknown.
To access the GLP displaying mode:
• Press while in
Measure
mode. The “Choose Display
Configuration” message will be displayed in the Reminder
messages area.
• Press
. The instrument will display the detailed GLP
data.
DISPLAYING MODESDISPLAYING MODES
DISPLAYING MODESDISPLAYING MODES
DISPLAYING MODES
103
PREPARATION PROCEDURE
Remove the protective cap of the pH electrode.
DO NOT BE ALARMED IF SALT DEPOSITS ARE PRESENT. This is normal with electrodes. They will disappear
when rinsed with water.
During transport, tiny bubbles of air may form inside the glass bulb affecting proper functioning of the electrode.
These bubbles can be removed by “shaking down” the electrode as you would do with a glass thermometer.
If the bulb and/or junction is dry, soak the electrode in HI 70300 or HI 80300
Storage Solution for at least one hour.
For refillable electrodes:For refillable electrodes:
For refillable electrodes:For refillable electrodes:
For refillable electrodes:
If the filling solution (electrolyte) is more than 2½ cm (1”) below the fill hole, add HI 7082 or HI 8082 3.5M
KCl Electrolyte Solution for double junction or HI 7071 or HI 8071 3.5M KCl+AgCl Electrolyte Solution for
single junction electrodes.
For faster response, unscrew the fill hole screw during measurements.
ELECTRODE CONDITIONINGELECTRODE CONDITIONING
ELECTRODE CONDITIONINGELECTRODE CONDITIONING
ELECTRODE CONDITIONING
& MAINTENANCE& MAINTENANCE
& MAINTENANCE& MAINTENANCE
& MAINTENANCE
(64 paginas)
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