Hach POCKET COLORIMETER II Instruction Manual

1—36
Chlorine, Free and Total, LR, continued
Method Performance
Estimated Detection Limit (EDL) = 0.02 mg/L
Typical precision (95% confidence interval) = 1.00 ± 0.05 mg/L
Monochloramine,
LR method
Causes a gradual drift to higher readings. When read
within 1 minute after reagent addition, 3 mg/L
monochloramine causes less than a 0.1 mg/L increase
in the reading.
Ozone Interferes at all levels.
Interfering
Substance
Interference Levels and Treatments
5957088.book Page 36 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