Hanna-instruments HI 9812-5N Manual do Utilizador Página 10
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Accessories needed:
• Use HI 70031 (1413 µS/cm) EC calibration solution or
HI 70032 (1382 ppm) TDS calibration solution.
Note: The conversion between EC and TDS is made by a built-in
circuit, hence it is requested to calibrate the meter only in EC
or TDS range. The other range is thus automatically calibrated.
PROCEDURE
• Pour approximately 4 cm (1½") of a conductivity calibration
solution (e.g. HI 70031) into a beaker. If possible, use plastic
beaker to minimize any EMC interference.
• Immerse the probe in the solution.
• Wait for a couple of minutes for thermal equilibrium to be
reached.
• Tap the probe on the bottom, then shake it lightly while rotating
to make sure no air bubbles remain trapped inside the probe.
• Press the µS/cm (or ppm) key.
• Turn the EC/TDS calibration knob until
the display shows the EC or TDS reading
at 25°C.
EC/TDSEC/TDS
EC/TDSEC/TDS
EC/TDS
CALIBRATION CALIBRATION
CALIBRATION CALIBRATION
CALIBRATION
- HI 9812-5 1
- Portable 1
- FUNCTIONAL DESCRIPTION 4
- SPECIFICATIONSSPECIFICATIONS 5
- SPECIFICATIONS 5
- OPERATIONAL GUIDE 6
- Accessories needed: 10
- EC/TDS CONVERSION FACTOR 11
- BATTERY REPLACEMENT 12
- PROBE MAINTENANCE 13
- ACCESSORIESACCESSORIES 14
- ACCESSORIES 14
- (ROMANIA) 16
- MAN9812 09/10 16
- Printed in EUROPE 16
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