ScienTECH Astral Series - Watts Mode

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B. Watts Mode: Pressing ZERO will zero the power meter, begin lasing.
9. System Overload indication
The LCD display will show “OL” when the allowable input power level for the range selected has been
exceeded. Exceeding the maximum specifications of the calorimeter will cause permanent damage to the
Astral Calorimeter.
10. Menu Features
To access the menu items, Press MODE and ZERO buttons simultaneously. The display will show the
first menu choice. Press the RANGE button to advance to the next menu choice. Press ZERO button to
select the menu choice. Pressing the RANGE button will increment the displayed value and pressing the
MODE button will decrement the displayed value. Menu items that are available are: Attenuation
Factor (ATTN) and Time Out (TO) and MODE (CAL).
A. Attenuation Factors
Access the Menu, as described in step 13, step through menu choices until ATTN is displayed,
then press the ZERO button to select. Use the RANGE button to increment and the MODE
button to decrement the attenuation factor. Pressing the ZERO and MODE buttons
simultaneously will return the value to 1.00 (the factory default). Press ZERO to select the
attenuation factor and return to normal operation. Very large or small attenuator values may
require re-ranging the power meter for proper operation. For example, with an attenuator value
of 10 and you apply 1 Watt of power, the display will indicate 10 Watts and must be in the 10
Watt range.
Values available are:
0.01… 0.99, 1.0,
1.1… 9.9, 10,
11 … 100
B. Time Out
The time out feature conserves battery power by putting the AI310 to sleep if there are no front panel
button pushes, after a selected period of time. To awaken the AI310 once it is in the sleep mode, press
ZERO on the front panel.
To change the time out period, access the Menu, as described in step 13, step through the menu choices
until TO is displayed, then press the ZERO button to select. Use the RANGE button to increment and
the MODE button to decrement the timeout factor. Pressing the ZERO and MODE buttons
simultaneously will return the value to 0 (the factory default). Press ZERO to select the timeout factor
and return to normal operation.