Hanna Instruments HI 83414 User Manual
Page 12
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.)