Hanna-instruments HI 83414 Instrukcja Użytkownika Pobierz pdf (Strona 12)

GENERAL TIPS FOR AN ACCURATE MEASUREMENT

HI 83414 is a highly accurate combined meter for turbidity and free & total chlorine. To meet the

instrument’s performance and fully benefit from its features, it is very important for the analyst to use

proper measurement techniques for accurate, precise and repeatable readings. Special care must be

taken during sample preparation and handling. The instructions listed below should be carefully

followed during measuring and calibration to ensure best accuracy.

GENERAL RULES

• Always put the instrument on a flat, rugged surface when taking measurements.

• Do not operate in direct sunlight.

• Keep the lid of the instrument closed when it is not used to prevent dust or dirt entering inside.

• Always close the lid of the instrument during measurement.

• Never use cuvettes with scratches or cracks because they can cause inaccurate readings.

• Always cap the cuvettes to avoid spillage of the sample into the instrument.

• Do not use too much oil to prevent contamination of the optical system.

• If possible use indexed and matched cuvettes.

• If possible use the same cuvette for zero and read for Free and Total Chlorine measurements.

CUVETTE

The cuvette is part of the optical system in all measurements. The light reaches the sample by

passing through the cuvette glass. As a result, the measurement can be affected by the glass

imperfections, dirt, dust, scratches, or fingerprints present on the cuvette surface. Special care

must be taken in preparing and handling the cuvette.

Standards 1 mg/L free chlorine, 1 mg/L total chlorine

Calibration One-point calibration

Other

Light Source Tungsten filament lamp

Lamp life greater than 100,000 readings

Display 40 x 70 mm graphic LCD (64 x 128 pixels) with backlight

LOG Memory 200 records

Serial Interface USB

Environment 0 °C (32 °F) to 50 °C (122 °F); max 95% RH non-condensing

Power supply 230 V/50 Hz or

115 V/60 Hz 20 W

Auto Shut-off After 15 minutes of non-use

Dimensions 230 x 200 x 145 mm (9 x 7.9 x 5.7”) L x W x H

Weight 2.5 Kg (88 oz.)

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Hanna-instruments HI 83414 Instrukcja Użytkownika Strona 12