Hach POCKET COLORIMETER II Instruction Manual

1—38
Chlorine, Free and Total, HR, continued
• If the sample temporarily turns yellow after reagent addition or shows
overrange (page 2—12), dilute a fresh sample and repeat the test. A slight
loss of chlorine may occur. Multiply the result by the dilution factor.
• High range free chlorine determinations are subject to variable levels of
interferences from monochloramine. See Interferences on page 1—47.
• Cold waters can cause condensation on the sample cells during color
development. Examine the sample cells for condensation before reading.
Note: The Pocket Colorimeter II is designed to measure solutions contained
in sample cells.
DO NOT dip the meter in the sample or pour the sample
directly into the cell holder.
5957088.book Page 38 Friday, March 22, 2013 3:54 PM

Hach POCKET COLORIMETER II Specifications

General

Measurement Method	Colorimetric
Display	LCD
Operating Temperature	0 to 50 °C
Storage Temperature	-40 to 60 °C
Waterproof Rating	IP67
Weight	0.23 kg
Light Source	LED
Range	Varies by parameter
Wavelength	Varies by parameter
Battery Life	Approximately 2000 tests