Front panel controls and indicators – VICI 500 Dynacalibrator User Manual
Page 15
Front Panel Controls and Indicators
The section entitled “Advanced Theory of Operation” beginning on page 24
includes more detailed information on the interrelation of the front-panel
controls and indicators with the internal pneumatic and electrical flow of
the units.
MAIN POWER switch, indicator, and circuit breaker
The push-button switch provides primary power to all circuits. The LED indica-
tor lights when main power is on. A 6 amp circuit breaker is installed in the main
primary power input line to all circuits.
HEATER POWER switch, indicator, and circuit breaker
The push-button switch provides primary power to the heater circuits when
the main power switch is on. The LED indicator lights when heater power is on.
A 4 amp circuit breaker is installed in the primary power line to the permeation
chamber heater circuits.
PERMEATION CHAMBER
This is the chamber which holds the permeation devices. A tool is provided to
rotate the panel lock screw 90° counterclockwise to unlock the cap.
CHAMBER FLOWMETER
A ball float and gauge in the carrier stream immediately preceding the chamber
indicates relative carrier flow. The actual carrier flow is set at the factory. Refer to
the calibration sheet at the back of the manual.
TEMPERATURE readout and controller
The front panel displays the current chamber temperature and the control
status of the instrument, indicated by the PNL and TMP lights. The chamber
Getting Started
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Figure 4: Model 500 front panel controls and indicators