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Using the Trigger Set

■ 

Wireless Adjusting Flash Settings

The trigger set can wireless adjust the following settings: the 
flash power ratio, the on-or-off of the buzzer and the modeling 
lamp or the AF-assist beam, as well as the power-ratio display 
mode.
1. On the transmitter and the receiver, set the Channel Select 

Switch to the same position and the Power-Control Group 
Select Dial to the same grade.

2. Insert the receiver into the Wireless Control Port of the flash 

unit. Then power the flash on.

3. Adjust the flash settings on your transmitter.

■ 

Wireless Triggering the Flash

1. On the transmitter and the receiver, set the Channel Select 

Switch to the same position.

2. Insert the receiver into the Wireless Control Port of the flash 

unit. Then power the flash on.

3. Press the Test Button to fire a flash. Alternatively, you can 

set the transmitter onto the camera's hot shoe and press the 
camera's shutter-release button to fire a flash.

Proper

Improper

Other Buttons

1. Set Button (

SET

)

Press the Set button and settings on the transmitter will be 
communicated with the flash through the receiver.        Will 
blink for sec. on the LCD display.
Press and hold the Set button for 2 sec. to switch the power-
ratio display mode.

2. Buzz Switch (

BUZZ

)

Press the Buzz Switch to turn the buzzer on or off. When the 
buzzer is turned on,       will be shown on the LCD display.

3. Modeling Lamp Switch / AF-Assist Beam Switch (

LAMP

)

Press the switch to turn the modeling lamp or AF-assist 
beam on or off. When the lamp or beam is turned on,       will 
be shown on the LCD display.

4. <

-

><

+

> Button

Press the <

-

> or <

+

> button to decrease or increase the 

power ratio. The power range is “OF, 5.0~10” or “OF, 
1.0~7.0”

 

for studio flashes and “OF, 1/128~1/1” for shoe 

mount flashes. “OF” means the flash triggering function is 
shut down on the flash.
To disable the flash triggering of a flash group, press “ - ” and 
“+” buttons at the same time, with the panel displaying “OF”.

5. Test Button (

TEST

)

Press Test Button to fire the flash. Both the indicators on the 
transmitter and the receiver will blink.

Connect/Disconnect 

PRO ST-I

Disconnection Way

Connection

1. The Dial of the transmitter and the receiver must be set to 
the same grade. Otherwise, the receiver does not respond.
2. Flash triggering is only related with Channel Select Switch. 
The Power-Control Group Select Dial only decides which flash 
or flash group to be controlled in terms of functions such as 
power setting.

Summary of Contents for PRO AC

Page 1: ...T I Made In China PRO AC PRO ST I PIXAPRO LTD 50 Popes Lane Oldbury West Midlands B69 4PA Tel 0845 872 7904 Web www essentialphoto co uk E mail customerservice essentialphoto co uk Company Registration No 07601334 2 4GHz Radio Flash Triggers ...

Page 2: ...uct Keep for future reference Failure to observe the following precautions marked by could result in damage to the product The icon indicates warnings that should be read beforehand to avoid any possible damage or injury Do not disassemble or modify Failure to observe this precaution could result in electric shock or product malfunction Should this product break open due to falling or other accide...

Page 3: ...es into a fire or apply direct heat to them Do not attempt to install batteries in the reverse direction Batteries are prone to leak when fully discharged To avoid damage to the product be sure to remove the batteries if the product will not be used for extended periods of time or if the batteries are out of power Should liquid from damaged batteries come into contact with skin or clothing rinse i...

Page 4: ...p Then attach the transmitter on the camera s hotshoe or hold it in hand and set the Dial to the same grade as that of receiver s After settings the flashes will be under your command The transmitter and the receiver must be set to the same channel for wireless control Otherwise the receiver does not respond The relationship of PRO AC ST I and ST III wireless trigger system PRO AC ST I Code Switch...

Page 5: ... Will blink for sec on the LCD display Press and hold the Set button for 2 sec to switch the power ratio display mode 2 Buzz Switch BUZZ Press the Buzz Switch to turn the buzzer on or off When the buzzer is turned on will be shown on the LCD display 3 Modeling Lamp Switch AF Assist Beam Switch LAMP Press the switch to turn the modeling lamp or AF assist beam on or off When the lamp or beam is turn...

Page 6: ...exhausted If so replace with new batteries Maintenance 1 Avoid sudden drops The device may malfunction after strong shocks or impacts 2 Keep dry The device is not water proof Malfunction rust and corrosion may occur and the device may go beyond repair if immersed in water or exposed to high humidity 3 Avoid sudden temperature changes Condensation may happen if the ambient temperature changes sudde...

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