HACH LANGE POCKET COLORIMETER II Phosphate LCK 348, Application Instruction, Page: 21 / 142

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Section 3 System start up
3.1 Instrument keys and display
3.1.1 Key-Functions
ZERO/SCROLL (BLUE key ) : In measurement mode, sets the instrument to zero. In
menu mode, scrolls through menu options. Also scrolls numbers when entering or
editing a value.
READ/ENTER (GREEN key ) : In measurement mode, initializes sample
measurement. In menu mode, selects a menu option. When entering numbers,
moves one space to the right. Confirm the function when the entry is complete.
3.2 Enter calibration data of LANGE Cuvette Tests
3.2.1 Overview
Each POCKET COLORIMETER II has two channels in which measurements can be
made. Each channel (measuring range) will accept user-defined calibration data.
This application instruction contains the calibration data of the LANGE Cuvette Tests
for Phosphate-Phosphorus/Phosphate:
Figure 1 Instrument keys and display
1 POWER/BACKLIGHT 6 Measuring range indicator (2)
2 ZERO/SCROLL (BLUE key ) 7 Menu indicator
3 MENU 8 Calibration adjusted indicator
4 Numeric display 9 Battery low indicator
5 Measuring range indicator (1) 10 READ/ENTER (GREEN key )
1 absorbance 2 1 absorbance 2
655 nm