HD400-EN V2.4 07/13
5
Maximum (MAX) and Minimum (MIN) Reading Memory
The MAX-MIN function allows the meter to store the highest (MAX) and lowest (MIN) readings.
1.
Press the MAX-MIN button to activate the
feature. ‘MANU MAX’ will appear on the top of the
display and the meter will only display the highest reading encountered.
2.
Press the MAX-MIN b
utton again. ‘MANU MIN’ will appear on the top of the display and the
meter will only display the lowest reading encountered.
3.
To exit this mode and return to the normal operating mode, press the MAX-MIN button a third
time.
Relative Mode
The Relative Mode function allows the user to store a reference value in the meter for which to
compare subsequent readings. For example, if the user stores a reading of 100 Lux, all subsequent
readings will be displayed as actual reading minus 100.
1.
Take the measurement, and when the desired reference value is displayed, press the REL
button.
2.
‘MANU REL’ will appear at the top of the LCD display.
3.
All subsequent readings will be offset by an amount equal to the reference level. For example,
if the reference level is 100 Lux, all subsequent readings will equal the actual reading plus 100
Lux.
4.
To exit the Relative Mode, press the REL button.
‘MANU REL’ will switch off indicating that the
meter has returned to the normal operating mode.
LCD Backlight
The meter is equipped with a backlight feature that lights up the LCD display.
1.
Press the backlight button to activate the backlight
2.
Press the backlight button again to switch the backlight off. Note that the backlight will turn off
automatically after a short period of time in order to save battery energy.
3.
The backlight function uses extra battery energy. To conserve energy, use the backlight
feature sparingly.
