Hach-Lange PCII-Ammonium LCK 303_304_305 - Manual (Page 9)

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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 HACH-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.
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