11
Cigarette lighter supply
To charge batteries from a vehicle cigarette lighter supply, use
HI710046HI710046
HI710046HI710046
HI710046 cable.
• Simply connect the cable to the meter and to the cigarette lighter plug.
• The message “Battery charging in progress” will appear on the display, fol-
lowed by the battery symbol.
• A complete battery charging will last about 14 hours.
NoteNote
NoteNote
Note Batteries can also be charged with the meter ON; if the auto-off fea-
ture is enabled, the meter turns off automatically after the set time.
1.5 PROBE DESCRIPTION & INSTALLATION
HI9828HI9828
HI9828HI9828
HI9828 is supplied with a multisensor probe for dissolved oxygen, temperature,
conductivity, pH and redox measurements.
1.5.1 Sensor Description
The galvanic DO sensor allows to obtain stable readings in
a few seconds. The thin permeable membrane isolates the
sensor elements from the testing solution, but allows oxygen
to enter. Oxygen that passes through the membrane causes
a current flow, from which the oxygen concentration is de-
termined. Before installing the probe, it is necessary to acti-
vate the DO sensor; see paragraph 1.5.3 for details.
The conductivity sensor uses the 4-ring technology that al-
lows stable and linear readings without any interference in
the whole range.
The pH/ORP sensor features a glass membrane for pH read-
ings and a Pt sensor for redox measurements.
To avoid clogging problems and ensure a fast response, the
pH bulb must be kept moist at any time. Store the electrode
with a few drops of
HI70300HI70300
HI70300HI70300
HI70300 storage solution in the pro-
tective cap.
The EC sensor also works as matching pin
and must be always mounted to have cor-
rect pH readings.
For correct redox measurements, the surface of the elec-
trode must be clean and smooth, and a pretreatment pro-
cedure should be performed to ensure quick response.
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