Calibration Procedure Using Prepared Standards - Hach POCKET COLORIMETER II Instruction Manual

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Once in the CAL or Edit option, press the
each option.
Note: Press
ZERO/SCROLL

Calibration Procedure Using Prepared Standards

Note:
Deionized water or a reagent blank can be used to zero during the calibration procedure.
Calibrations generated with deionized water as the zero will give less accurate results if
the reagent blank is significantly more turbid or colored than deionized water. Use the
deionized water or the reagent blank as the zero concentration point (S0) in the following
calibration procedure.
1. Turn on the instrument and select the range to be calibrated. An arrow at the
top of the display will point to the selected range. To change ranges, press the
key, then use the
MENU
Press again to return to measurement mode.
MENU
2. Follow the procedure for the chemical method to be calibrated. Prepare a
reagent blank (if needed) and a standard solution. Allow the color to
develop fully.
User-Entered Calibration,
to quickly scroll through each option.
key to toggle between ranges 1 and 2.
READ/ENTER
2—17
key to navigate through
READ/ENTER
continued