VICI 230 Dynacalibrator - Manual (Page 31)


Electrical Description
The basic wiring of the Model 230 is shown schematically in Figure 11. Dynacali-
brators are powered from a benchtop style transformer on the rear panel. This is
a switcher-style supply that allows a range of input voltage and frequency from
100 to 240 VAC at 50-60 Hz. The power supply steps the voltage down and regu-
lates the output to 24 VDC. If the cord end type is inappropriate for your locale,
please contact VICI for a replacement cord.
The main power switch S1 is on the front panel, along with the main circuit
breaker CB1. When the main power switch is on, 24 VDC energizes the main
power indicator on the front panel, as well as the fan and stream switching
solenoids.
Power to the permeation chamber heater is controlled by switch S2 on the front
panel. There is a separate circuit breaker CB2 and indicator for power to the
permeation chamber heater.
Figure 11: Model 230 electrical schematic
(Refer to page 37 for Electronic Flow Control option)