User manual SPEEDOTRON 2405CX

[. . . ] Welcome to Speedotron Thank you for purchasing Speedotron Black Line equipment. The name Speedotron is synonymous with professional workmanship and the finest electronic flash equipment available. Backed by years of experience, our engineers have developed the Black Line system to take the rigors of daily professional use with consistently outstanding results. For more than 60 years, Speedotron's reputation has grown without much fanfare or advertising. [. . . ] These channels may may be joined for even (symmetrical) output to all outlets or separated for unequal (asymmetrical) output to a set of outlets in one or more channels. Power distribution charts are provided in the next section of this manual and on the side of each power supply. When we refer to ratioing, we are describing the levels of power output from the power supply to the light units only. These power output ratios do not mean that the light falling on the subject will be at that same ratio. This will only occur if the light units are the same and have the same flash tube, reflector, cable length, light control accessories, are at the same distance to the subject, and there is no overlap of lighting on the subject, etc. Power output ratios are only offered as a guide to help you determine your lighting arrangements. *Not available on 405 power supplies. When increasing power (rotating knob from -1 stop to Full, for example) it is immediately increased to the light units. Rotating the Variable Power Control does not change the output of the model lamps. Their output is controlled by the Variable Model Lamps Controls, one control for each power channel. This way, model lamp output can be matched to the light units, and lighting ratios are easily visualized. This flashes all light units connected to the Model 1205CX LV / 2405CX LV. Unplug power cord from outlet, then disconnect light units from power supply. 7 1205CX LV / 2405CX LV Description of Controls Note:Instructions apply to all versions of 1205/2405 power supplies. Variations in these models are in switches and AC input connector only. 1) Power -- turns power supply on and off (flashes light units when turning off) 2) Model -- turns model lamps on and off. Combine connects channels as indicated (A+B, B+C) with symmetrical distribution; Isolate separates channels as indicated (A B, B C). 5) Variable Power Control -- simultaneously controls power of all 3 channels, in 1/4 stop increments, down to -2 stops (1/4 power). 6) Ready/Push to Flash -- illuminates when power supply reaches 100% recycle. Pushing the button manually triggers the flash for testing or open flash applications. 9) Variable Model Lamp Control (3) -- controls output of model lamps, down to -3 stops (1/8 power), independently for each channel. 10) Light Unit Outlets (4) -- sockets for connecting from one to four light units to power supply. 11) Power Input -- socket for AC power cord. 6 1205CX LV / 2405CX LV · power supply 1205CX LV / 2405CX LV · power supply 1205CX LV Power Ratios 2405CX LV Power Ratios Divide watt-seconds by 2 when using half power (-1 stop). Divide watt-seconds by 4 when using quarter power (-2 stop). Divide watt-seconds by 2 when using half power (-1 stop). Divide watt-seconds by 4 when using quarter power (-2 stop). 8 9 1205CX LV / 2405CX LV · power supply General Maintenance and Care All Speedotron Black Line equipment is ruggedly built. [. . . ] Service performed at any other service station, including those authorized by Speedotron, is not covered and any service so performed is at the customers expense. Shipping charges, both to and from the Chicago factory, are also the responsibility of the customer, and are not covered by this agreement. Shipping charges to cover the return of your equipment by what-ever means you choose may be included with requests for service, or equipment can be returned C. O. D. This agreement is valid only for the equipment listed Any other piece of equipment or accessory is not covered under this agreement, even if damaged while in use with the equipment covered Flash tubes and modeling lamps are not covered. [. . . ]