Button Functions; Center (Yellow) Function Switch; Range Button; Hold Button - AEMC CA811 User Manual

2.2

Button Functions

2.2.1

Center (Yellow) Function Switch

Turns the Lightmeter ON and selects the lux or fc (foot-candles) setting.
Slide the switch to OFF after use.
2.2.2

RANGE Button

The RANGE button changes the measurement range. At power-up, the
selected range is 2000 fc or 2000 lux.
Press the RANGE button until the desired lux or fc range is selected. Each
time you press the RANGE button, the range will increase by a factor of
ten (x10), and a new value is displayed. The scale factor (fc, kfc, lux, klux)
is displayed in the lower left hand corner of the display.
2.2.3

HOLD Button

The HOLD button "freezes" the reading on the display.
Press the HOLD button to activate the HOLD function. In the HOLD mode,
the HOLD annunciator is displayed in the upper part of the LCD display
and the last reading is displayed until the HOLD button is released.
2.2.4

Back-light Button

Press the button to turn the Back-light ON. Press again to turn OFF.
2.2.5 MAX Button
Press the
enabled, MAX is displayed in the upper right hand corner of the display.
The Lightmeter then records and displays the maximum absolute value. It
is only updated when a new MAX is reached.
2.2.6 PEAK Button
Press the button for 2 seconds to enter or exit the PEAK mode. When
enabled, PEAK is displayed in the upper left hand corner of the display.
In the PEAK mode, the Lightmeter records and displays the maximum
absolute value over a 50ms period and is updated when a new PEAK is
reached.
Lightmeter Models CA811 and CA813
Shop for AEMC products online at:
(Model CA811)
button for 2 seconds to enter or exit the MAX mode. When
(Model CA813)
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