Hach POCKET COLORIMETER II User Manual

9. When "S1" shows on the display, push . Push to enter the first
standard value, then push .
Note: Push to enter the next digit.
10. When "A1" shows on the display, measure the absorbance of the
reacted standard solution.
a. Insert the reacted standard sample cell in the cell holder.
b. Install the instrument cap over the cell holder.
c. Push . The display shows the absorbance value for "S1".
d. Remove the sample cell from the cell holder.
11. The calibration is completed with two calibration points. If additional
standards are necessary for calibration:
a. Push until “Add” shows, then push .
b. Do steps 9–10 again to enter more standards.
12. Push two times to go back to measurement mode.
Enter a calibration curve with the keypad
At least two data pairs are necessary to enter a user-prepared
calibration curve. A concentration value and the absorbance value for
the given concentration is necessary for each data pair. A maximum of
10 data pairs can be entered.
Note: This procedure can also be used to change the data pairs in a user-
entered calibration curve.
1. Set the instrument to the range to calibrate. Refer to Configure the
instrument on page 11.
2. 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.
3. Push until "EDIT" shows, then push .
4. 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 .
English 23

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