Hach POCKET COLORIMETER II Instruction Manual

2—13
Standard Calibration Adjust
The Pocket Colorimeter™ II instrument is factory-calibrated and ready for use
without user calibration. Use of the factory calibration is recommended unless
the user is required to generate a calibration. The Standard Calibration Adjust
can be used to meet regulatory requirements.
This feature allows the factory default calibration curve to be adjusted with a
known standard. Use the standard described in the procedure.
1. Place a blank in the meter (in measurement mode). Press
ZERO/SCROLL.
2. Place the reacted standard in the meter. Press
READ/ENTER.
3. Press
MENU, then press ZERO/SCROLL until the display shows “SCA”.
4. Press
READ/ENTER to display the standard calibration adjust value.
5. Press
READ/ENTER to adjust the curve to the displayed value. The meter will
return to the measurement mode and the Calibration Adjusted icon will
appear in the display window.
If an alternate concentration is used, or if a standard concentration is not given:
6. Repeat steps 1–4.
5957088.book Page 13 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