Hach POCKET COLORIMETER II User Manual

Enter a calibration curve with standards
Note: Deionized water can be used for the blank unless the sample is
significantly more turbid or has more color than deionized water.
1. Set the instrument to the range to calibrate. Refer to Configure the
instrument on page 11.
2. Prepare the blank and the reacted standard solution. Refer to the
test procedure. Let the color fully develop.
3. Set the instrument to zero.
a. Insert the blank sample cell in the cell holder.
b. Install the instrument cap over the cell holder.
c. Push . The display shows “- - - -”, then “0.000”.
d. Remove the instrument cap.
e. Remove the sample cell from the cell holder.
4. Push and hold until "USER" and then "CAL" shows, then push
.
Note: If "USER" and "CAL" do not show, the factory calibration cannot be
changed on the selected range.
5. When "RES" shows on the display, set the resolution.
a. Push . The resolution setting (decimal placement) shows.
b. To change the resolution, push , then . Push to save the
change.
c. To not change the resolution, push .
6. When "S0" shows on the display, push . Push to enter the
blank value, then push .
Note: Push to go to the next digit.
7. When “A0” shows on the display, measure the absorbance of the
blank.
a. Insert the blank sample cell in the cell holder.
b. Install the instrument cap over the cell holder.
c. Push . The display shows the absorbance value for "S0".
d. Remove the sample cell from the cell holder.
8. Push to show "S1".
22 English

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