18 MN1007-C
15 seconds). The user is presented with a time-averaged result on the display which gradually finds a mean value
over the duration of the measurement
Colour-coded LEDs above the instrument’s display screen indicate the current status of this measurement process.
[See Section 4.5 for more details on the integration function]
Select/Backlight key
The dual function key is used to select options from the alarm and integrate menus as well as activate the display
backlight.
Following activation, the backlight will operate for 20 seconds before switching off.
Mode (+) key
The primary key function is to step through the various measurement modes of the instrument. Each key-press
moves to the next unit option available for the probe attached.
The dual function key is also used to increase the alarm and integrate period parameters (+) when these menu
options are selected. [See Sections 4.8 & 5 on alarm and integration period configuration]
Log Back-ground key
This key is used to record and store background radiation levels.
Following key-press, a one minute background count is initiated and the result stored in memory. The result is used
in measurement modes where background compensation is factored into the value output to the display.
This process overwrites any previous value of background which is stored in memory.
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General