Impact VC-500WLN 500Ws Monolight - Manual (Page 20)

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To install a battery into the wireless trigger, first remove the battery compartment
door. Remove the spent battery by holding back the clasp and pulling the battery
out. Insert the new battery under the clasp, using the correct orientation, and
snap the other side into place. Reinstall the battery compartment door.
Preflash Variation Settings
The Impact Digital Monolight is compatible with nearly all master flash or slave
units. Different brands use different numbers of preflashes before triggering
other slave units. To facilitate those differences, this studio flash has two
settings that enable the flash to ignore a user-selected timeframe of preflashes
before firing. Use these functions when you need to manually control preflash,
instead of using the “Slave and Preflash Settings” mode.
Note: Various brands of flashes have different numbers and durations of their
preflashes. Some trial and error may be necessary to obtain your model’s best
settings.
Time Frame
The Time Frame function allows for a variable of 1 to 5 seconds for the studio
flash to ignore master preflashes. To use this function, refer to the following
instructions:
1. Press and hold the slave button for 8 seconds.
2. Use the or modeling light output buttons to select your required setting.
Setting (t) 1 2 3 4 5
Time (sec.) 1 2 3 4 5
Replacing the Battery (CR2032)