VICI 450 Dynacalibrator - Manual (Page 36)

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Electrical Description
The basic wiring of the Model 450 is shown schematically in Figure 15. 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 Metronics 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 power indicator and circuit breaker CB2 for power to
the permeation chamber heater.
TEQCOM
M243W2DFS-HT
TEQCOM
SV113W2DFR-T
HUMPHREY
320 24V DC
READ
SPAN 1
READ
SPAN 2
TEQCOM
M243W2DFS-HT
TEQCOM
SV113W2DFR-T
HUMPHREY
320 24V DC
1
2
3
4
5
6
MOLEX TERMINAL
MFG. P/N 19017-0028
24 GA \PRIBBON CABLE
Figure 15: Model 450 electrical schematic