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One light: Symmetrical mode in any outlet, will receive 800Ws.
Asymmetrical mode in outlets 1 or 2, will receive 800Ws;
when using outlets 3 or 4 output is 600Ws.
Two lights: Symmetrical mode, all outlets share an equal amount of power.
Two lights each receive 400Ws (800Ws divided by 2).
Asymmetrical mode
Combination 1: one light in outlet 1 or 2 receives 400W;
the second light in outlet 3 or 4 receives 200Ws.
Combination 2: in outlets 1 and 2 receive 400Ws each.
Combination 3: in outlets 3 and 4 will receive 200Ws each.
Following the table will quickly illustrate other combinations that are possible with
up to four light units on the D802B.
D802B Power Distribution Table
Turn on Power and Model switches. Wait until the Ready/Push to Flash illuminates and
press the button to check if the unit is operational. The light unit(s) should flash instantly
when this button is pressed. If you wish to check the function of each individual light unit,
we recommend that you turn off the Model switch and hold your hand in front of (not
inside) the light unit to be tested. When you fire the unit you will feel the heat of the
flash. This method is suggested because it is often difficult to determine by sight if one
of the lights has failed to flash.
When disassembling the system or changing the position of a light unit connector in any
outlet, it is a good habit to set the Full/Half switch to full first, then turn off Model and
Power switches prior to disconnecting light units. If this procedure is not followed, allow
10 seconds between turning the Power switch off and adjusting the Full/Half switch.
DO NOT immediately switch to full power! Damage to the switch may result.
The D402 and D802B power supplies will flash their light units when turned off. Placing
the Full/Half switch on the D402 and D802B into the full position before turning off
Power will ensure that all capacitors are discharged.
POWER DISTRIBUTION TABLES
On the side of the D202, D402 and D802B power supplies, there is a Power Distribution
Table based on the full power setting. These tables should be used as guides for deter-
mining various lighting possibilities, guide numbers and exposures when using consistent
flash tubes and reflectors. When different flash tubes and/or reflectors are used actual
light output will vary producing as much as a full f/stop discrepancy with the table.
The ’02 Series feature symmetrical and asymmetrical operation. Symmetrical output
means all light units share equal output. To determine power levels, divide the total
watt-seconds by the number of light units to be used. In asymmetrical mode, outlets 1
and 2 receive a greater portion of the total output than outlets 3 and 4. (For specific
power distribution refer to the charts below for the number and configuration of the
lights to be used.)
D402 Power Distribution Table
One light: Symmetrical mode in any outlet, will receive 400Ws.
Asymmetrical mode in outlets 1 or 2, will receive 400Ws;
when using outlets 3 or 4 output is 300Ws.
Two lights: Symmetrical mode, all outlets share an equal amount of power.
Two lights each receive 200Ws (400Ws divided by 2).
Asymmetrical mode
Combination 1: one light in outlet 1 or 2 receives 200Ws;
the second light in outlet 3 or 4 receives 100Ws.
Combination 2: in outlets 1 and 2 receive 200Ws each.
Combination 3: in outlets 3 and 4 will receive 100Ws each.
Following the table will quickly illustrate other combinations that are possible with
up to four light units on the D402.
Divide watt-seconds by 2 when using half power.
400
300
200 100
200 200
100 100
50 50200
140
140 70
120 120 30 30
Symmetrical
Any socket(s)
Asymmetrical
1 or 2 3 or 4
1 Light
400Ws
2 Lights
3 Lights
4 Lights
200Ws
133Ws
100Ws
2:1
1:1
4:1:1
2:2:1
4:4:1:1
1:1
Divide watt-seconds by 2 when using half power.
800
600
400 200
400 400
200 200
100 100400
280
280 140
240 240 60 60
Symmetrical
Any socket(s)
Asymmetrical
1 or 2 3 or 4
1 Light
800Ws
2 Lights
3 Lights
4 Lights
400Ws
266Ws
200Ws
2:1
1:1
4:1:1
2:2:1
4:4:1:1
1:1