VICI 120 Dynacalibrator - Manual (Page 5)


Getting Started
Battery Information
The unit arrives with a fully charged battery. A red charging indicator
indicates that the battery needs to be charged.
Charging the Battery
Plug the power cable into the main power connector on the front panel
of the calibrator and into a 110 VAC power source (220 VAC with the
Model 120-C), or into the power inverter plugged into a 12 VDC source.
A green charging indicator confirms charging activity. A fully dis-
charged battery will take about 12 hours to be completely charged.
The Dynacalibrator can be used while the battery is charging.
Enhancing Battery Charge Duration
At low temperatures, the battery can power the instrument for as long
as 24 hours. At 100°C, the battery will power the instrument for about
4 hours. To increase battery life at 100°C operation:
1. Set a very low flow rate (~500 cc/min) when heating the system to
its operating temperature. This will minimize the cooling effect of the
air flow on the permeation chamber.
2. Preheat the system with the Dynacalibrator plugged into an AC
power source. When the AC power cord is unplugged, the unit will
automatically switch to battery operation.
Battery Maintenance
To maintain the battery in good condition, keep the unit fully charged
or leave it charging continuously. The lead-acid battery does not
exhibit the “memory effect” characteristic of nickel-cadmium batteries,
and requires no further maintenance for optimum performance.
Output Modes
Standby or equilibration mode
The span outlet is cut off; the total flow from the permeation
chamber exits through the overflow vent to the scrubber.
Monitors with sample pumps
The flow from the permeation chamber is routed to a tee,
exiting through the span outlet and overflow vent.
Passive monitors (those without sample pumps)
The overflow vent is cut off; the total flow from the permeation
chamber exits through the span outlet.
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