VICI 235 Dynacalibrator - Manual (Page 14)

10
Initial Set-Up
Connections
1. Plug the supplied power cord into the rear mounted power supply. Ensure
that the power supply output cable is plugged into the interface board power
connector.
2. Remove caps from the SUPPLY INLET, SPAN OUT, and OVERFLOW VENT ports
on the rear panel. (Figure 3)
3. Connect the clean, dry, regulated supply gas source (25 psig min, 50 psig max)
to the carrier inlet on the rear panel. (Figure 3) The supply gas regulator must
be able to source the maximum dilution fl ow, which may be as high as 20 SLPM.
4. Connect the span outlet to your instrument.
Always leak check the entire instrument and all fl ow connec-
tions, particularly if toxic, corrosive, or fl ammable gas mixes
will be generated.
Use clean/dry air or N
2
to perform a pressure/decay test to
verify the leak integrity of the system before putting it into
service.
Setting the Chamber Temperature
Important Chamber Temperature Considerations
• If the chamber temperature exceeds the value set by the mechanical
temperature limit switch, the heater will automatically shut down and
a warning screen will appear on the touch screen controller.
• When the front panel door is removed, the heater automatically shuts down.
• Always refer to the separate instructions accompanying the permeation
tube(s) to make sure that the selected temperature is compatible with the
permeation tube(s) being used.
Once the gas connections are complete and the instrument has been leak tested,
turn on the inlet supply gas. Plug in the power the power cord and switch the
power on using the front panel switch. The touch screen panel provides the user
interface for setting and checking the permeation chamber temperatures.
1. Open the Manual screen (Figure 5) by touching the “Manual” tab on the left
hand side of the display.
2. Touch inside the white area of the "Temp: set point"
fi eld. When the UP/DOWN control appears (right),
use it to reach the desired value.
3. Select "OK" when fi nished.