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Section 4 Start Up
4.1 Power the instrument on and off
1. Plug in to the power supply (laboratory analysis) or insert the
battery (field analysis).
2. The push-button switch on the back of the instrument switches
the instrument on (press for about 1 second) and off (press for
about 3 to 5 seconds). An acoustic signal confirms that the
instrument has been switched off.
Note: Do not turn the instrument off and on in rapid succession. Always
wait about 20 seconds before turning the instrument on again, otherwise
the electronic and mechanical systems will be damaged.
4.2 Language selection
The spectrophotometer software includes several language
options. The first time the instrument is turned on, the language
selection screen will appear.
1. Select the desired language.
2. Press OK to confirm the language selection. The self check will
start automatically.
Change the language setting
The instrument functions in the selected language until the option is
changed.
1. While turning the instrument on, touch the screen at any point
until the list for selecting a language appears
(about 30 seconds).
2. Select the required language.
3. Press OK to confirm. The test program subsequently starts
automatically.
4.3 Self-Check
Each time the instrument is powered up, a series of diagnostic tests
are performed automatically to ensure operation of major system
components.
This procedure, which takes approximately two minutes, checks the
system, lamp, filter adjustment, wavelength calibration and voltage.
Each test which functions correctly is confirmed with a check mark.
The Main Menu is displayed when power up diagnostics are
completed.