Pixapro PRO AC User manual

Instruction Manual
English PRO AC
PRO ST-I
Made In China
PRO AC/PRO ST-I
PIXAPRO® LTD.
50 Popes Lane,
Oldbury,
West Midlands,
B69 4PA
Tel: [phone]
Web: www.essentialphoto.co.uk
E-mail: [email protected]
Company Registration No. 07601334
2.4GHz Radio Flash Triggers

Foreword
Thanks for purchasing a PIXAPRO product.
The wireless power-control flash trigger is designed for versatile
use. When used on PIXAPRO flashes (with wireless control
port), it is not only a flash trigger, but also incorporates multiple
functions, such as, adjusting power ratio, controlling the on-or-
off of the buzzer and the modeling lamp or the AF-assist beam.
The trigger set consists of a transmitter (on-camera) and a
receiver (on-flash). PRO AC and Pro ST-I series triggers use
the PIXAPRO ST-III 2.4GHz system for a wide range of
applications.
Contents
Foreword
For your safety
Parts
●Body
●Battery
●Power Switch
●Power-Ratio Display Mode
●Channel Select Switch
●Power-Control Group Selection
●Other Buttons
Using the Trigger
●Adjusting Flash Settings
●Wireless Triggering
Technical Data
Troubleshooting
Maintenance
For your safety
Before using this product, please read the following safety
instructions carefully in order to ensure your safety and the
proper operation of this product. 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 accident, take out the batteries and sent it to an
authorized maintenance center.
Keep dry.
Do not handle with wet hands, immerse in water, or expose to
rain. Failure to observe this precaution could cause fire or
electric shock.
Do not use in the presence of flammable gases.
Failure to observe this precaution could result in fire or
explosion.
Keep out of the reach of children.
This product contains small parts that may pose a choking
hazard. Should a child swallows any part of this product,
consult a physician immediately.
Turn off the trigger immediately should malfunction
occur.
Should smoke or an unusual smell come from this product,
take out the batteries immediately in case of burning and send
this product to an authorized maintenance center. Continued
use may result in injuries.

2.4GHz
Do not expose to high temperature.
Do not leave the product in a closed vehicle in the sun or in
other areas subject to extremely high temperature. Failure to
observe this precaution could result in fire or damage to the
casing or internal parts.
Observe precautions when handling batteries.
Batteries may leak or explode if improperly handled. Please
observe the following precautions when handling batteries for
this product:
Use only batteries listed in this manual. Do not mix new and old
batteries, or mix batteries of different brands.
Read and follow all warnings and instructions provided by the
battery manufacturer.
Batteries should not be short-circuited or disassembled.
Do not put batteries 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 immediately with fresh water.
Parts
Body
01. ON/OFF Switch
Power on (ON)
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
03
12
Transmitter PRO AC
Receiver PRO AC
03
12
04
15
Receiver ST-I
Power off (OFF)
02. LCD display
03. Power-Control Group Select Dial (POWER)
04. Channel Select Switch (CHANNEL)
05. Set Button (SET)
06. Buzz Switch (BUZZ)
07. Modeling Lamp Switch (LAMP)
AF-assist Beam Switch
08. Test Button (TEST)
09. <-> Button
10. <+> Button
11. Hot shoe
12. Indicator
13. Antenna
14. Battery Compartment
15. Wireless Control Plug

Battery
The transmitter needs two size-AA batteries (not provided). The
receiver draws power from a flash through the flash’s Wireless
Control Port. Slide the battery compartment cover of the
transmitter and insert the batteries.
Power Switch
Turn the transmitter on by sliding the ON/OFF Switch to ON. The
LCD display will then light up.
Low Battery Indication
When the battery power (<2.2V) gets low, is shown on the
LCD display. Please change batteries as low battery power
leads to no flash or flash missing in case of long distance.
Turn the transmitter off to save power if it will not be used for
an extended period.
Channel
S1
S2
S3
S4
1
0
0
0
0
2
1
0
0
0
3
0
1
0
0
4
1
1
0
0
5
0
0
1
0
6
1
0
1
0
7
0
1
1
0
8
1
1
1
0
Power-Control Group Selection
Both the transmitter and the receiver have a 16-grade Power-
Control Group Select Dial (hereinafter referred to as Dial). With
these 16 grades, you can wireless control at most 16 flash
groups in terms of the following functions: adjusting the power
ratios and turning on/off the buzzer and the modeling lamp or
the AF-assist beam, as well as flash triggering.
Attach the receiver(s) on multiple flashes/one flash and set the
Dial of each receiver to the same grade. This is a flash group.
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)
ST-III
(Display Screen)
PRO AC/ST-I
(Code Switch)
ST-III
(Display Screen)
ON
CH01 CH02 CH03 CH04 CH05 CH06 CH07 CH08
CH09 CH10 CH11 CH12 CH13 CH14 CH15 CH16
ON ON O N ON O N ON O N
ON ON O N ON O N ON O N ON
Note: When use ST-III series transmitter in combination with PROAC/ST-I
series receiver, please set the transmitter to M mode. PROAC/ST-I cannot
receive the parameters that emitted by the transmitter in TTL and M mode.
Channel
S1
S2
S3
S4
9
0
0
0
1
10
1
0
0
1
11
0
1
0
1
12
1
1
0
1
13
0
0
1
1
14
1
0
1
1
15
0
1
1
1
16
1
1
1
1
Power-Ratio Display Mode
The trigger set has 3 modes to display a flash’s power ratio.
1. 1/128~1/1: widely adopted in most shoe mount flashes.
2. 5.0~10: adopted in some studio flashes.
3. 1.0~7.0: adopted in some studio flashes
The 3 display modes can be switched over by pressing the Set
Button and holding for 2s.
Channel Select Switch
The trigger set provides 16 channels for communication. Set the
transmitter and the receiver to the same channel before use.
Check the following table for channel settings:

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.

97.6*49.9*36.95mm
A set: approx. 80g
Only receiver: 20g
57*30*26.5mm
Transmitter Dimension
Net Weight
Receiver Dimension
A set: approx. 70g
Only receiver: 10g
55*27*9mm
Model
PRO AC
PRO ST-I
Fit flashes
PIXAPRO CITI600,
PowerCore, Hybrid360
Series Porable Flashes
Lumi, Storm Kino
Series studio flashes.
PIXAPRO Li-ion
Speedlites
Fit cameras
Canon, Nikon,
Pentax,
Olympus, etc.
Includes
Transmitter
Receiver PROAC
Transmitter
Receiver ST-I
Troubleshooting
1. Unable to trigger a flash by pressing Test Button or the
camera's shutter-release button.
Make sure batteries are installed properly and the trigger set
is powered on.
Check if the transmitter and the receiver are set to the same
channel. If not, set to the same position.
Check if the trigger set is securely seated into the camera's
hot shoe.
2. Signal disturbance or shooting interference.
Change a different channel on the trigger set.
3. Short workable distance or flash missing.
Check if batteries are 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 suddenly, for
example, in a case when the trigger set is taken out of a
building with a high temperature to outside in winter. Please
put the trigger set in a handbag or plastic bag beforehand.
4. Keep away from strong magnetic field. The strong static
or magnetic field produced by devices such as ratio
transmitters may lead to malfunction.
PRO AC PRO ST-I
3V (2*AA Ni-MH or alkaline batteries )
5V (powered by flashes)
2.4GHz wireless remote system
Over 100m / 328ft (open areas)
Flash power ratio
Modeling lamp or AF-assist beam on/off
Buzzer on/off
Power-ratio display mode
Flash triggering
1/250 second
16
Model
Transmitter Power Supply
Receiver Power Supply
Transmition Frequency
Workable Distance
Control on Flashes
Max. Sync. Speed
Channels
Technical Data