Preliminary Examination; General Description - Hanna Instruments HI 9812 Instruction Manual

PRELIMINARY EXAMINATION

PRELIMINARY EXAMINATION PRELIMINARY EXAMINATION
PRELIMINARY EXAMINATION PRELIMINARY EXAMINATION
Remove the instrument from the packing material and examine it
carefully to make sure that no damage has occurred during shipment.
If noticeable damage is found, notify your Dealer.
Each meter is supplied with:
• HI 1285 combination, amplified, double-junction, gel pH
electrode with incorporated EC/TDS probe and built-in
temperature sensor and 1m (3.3') cable
• HI70004 pH 4.01 sachet (1 pc)
• HI70007 pH 7.01 sachet (1 pc)
• Instruction Manual
• 9 V battery.
Note: Save all packing material until you are sure that the instrument
functions correctly. Any defective items must be returned in the
original packing together with the supplied accessories.

GENERAL DESCRIPTION

GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION
HI 9812 and HI 9813 are the most complete and versatile portable
pH/EC/TDS meters ever manufactured. Designed with utmost precision
and simplicity, these meters provide 3 kinds of measurements. The
pH, EC and TDS ranges are easily selected using a membrane
keyboard on the front panel.
The conductivity of a solution depends on the temperature and for this
reason measurements are carried out with reference to a standard
temperature of 25°C. If the solution measured has a different tem-
perature than 25°C, compensation must be performed.
HI 9812 and HI9813 automatically compensate for temperature
changes with a built-in temperature sensor and circuitry. The tempera-
ture coefficient is fixed at 2%.
• HI 9812 is a pH/EC/TDS meter designed for simplicity of use in
taking pH, µS/cm and ppm measurements. Suited for aquariums,
fish-farming, seawater applications.
• HI 9813 is a pH/EC/TDS meter designed for simplicity of use in
taking pH, mS/cm and ppm measurements. Suited for hydropon-
ics, greenhousing, farming and ground water applications.
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