9InstallationRemove all packing materials from the WCA Pack. Check that all foam and plastic padding is removed.Connect all cables.Always disconnect from electric mains power supply before cleaning or servicing.Damages caused by non-observance are not subject to warranty.Set Up and OperationPower On/Off1. Power on: Push the power (1) button to turn on the power. The power indicator (3) will light green.2. Power off: Push and hold the power (1) button for 3 seconds to turn off the power.Note: The power indicator will light green in normal operation. In case of a weak battery, the powerindicator will light red.Channel selectPush and hold the channel (6, 15) button for about 3 seconds. The decimal point in the display (5, 14) willstart blinking. Now you are able to change the channel by pushing the channel (6, 15) button.Be aware that when you several WCA Pack systems at the same stage, that the channels should beseparated by at least 4 channels. When using 4 WCA Pack systems, you could use following settings:Notes: Make sure, the channel of the transmitter matches that of the receiver. The display (5, 14) will stop blinking if there is no button pushed for 6 seconds. The actual channel willbe stored. If there is no action for 9 seconds, the display will turn off.Mounting the transmitter to a cameraUse the shoe mount adapter (29) to mount the transmitter to the camera’s flash mount.Fig. 6