C-LOGIC 250 Instruction Manual page 31

C-LOGIC 250 • Digital light meter
• Press and hold the C-LOGIC 250 power key (4) for a short time to power
on the light meter. The LCD screen will illuminate (about 5 seconds) with the
buzzer beeping twice, and "AUTO" will appear on the middle of LCD display.
This indicates that the auto measurement mode is ON.
• Press and hold the manual range switching key (9) for a short time; "MANU"
will appear on the top left position of the LCD display, indicating that the
manual range switching mode has been activated.
• In this mode, each time press and hold the key for a short time, the meter
will switch to 20.00Lux → 200.0Lux → 2,000Lux → 20,000Lux →
200,000Lux (or 20.00Fc → 200.0 Fc → 2,000 Fc → 20,000 Fc) in
sequence; pressing the key for one second will result in the inscription
"MANU" disappearing from topleft position of LCD display, replaced by
"AUTO" appearing in the middle, to indicate that the meter has switched the
manual range switching mode to the auto range switchover.
• Press and hold the REL/PEAK key (8) of the C-LOGIC 250 for a short time,
"REL" will appear on the top left position of the LCD interface, indicating the
activation of the relative value measurement mode. Press and hold the key
(8) for a short time again, the device will exit the relative value measurement
mode and return to the original measurement mode, and "REL" on the top
left position of the LCD interface will disappear.
Figure 4-1
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