VICI 120 Dynacalibrator - Manual (Page 6)

 Getting Started
Initial Equilibration
Refer to Figure 2 as required.
1. With the battery fully charged or with the power cable connected to 110
VAC or 12 VDC source, turn on the main power at the main power switch.
The temperature controller display will light up.
2. Turn on the pump and heater. The indicators will light up, indicating
proper operation.
3. Use the mode selector to select STANDBY, forcing all the calibration gas
to the overflow scrubber.
4. Use the dilution flow control knob to set the dilution flow to the lowest
float setting on the flowmeter.
5. Use the UP and DOWN buttons under the display on the temperature
controller to input the desired temperature (30° - 100°C). Keeping the
button depressed will make the display change faster.
Make sure that the selected temperature is compatible
with the permeation device that will be in use.
6. Place the permeation device in the permeation chamber, using the
forceps if necessary. If you are using a wafer-type device, refer to the
information on page 8.
7. Allow 30 minutes for the permeation chamber to equilibrate.
Calibration Connections
Passive Monitors (without sample pump)
If the sensor to be calibrated does not have a sample pump which will draw
the calibration gas from the span outlet:
1. Connect a sample line from the span outlet to the monitor.
2. Switch the mode selector to SPAN, forcing all the calibration gas to exit at
the span outlet.
An exhaust port must be provided downstream of
the sensor so that there is no backpressure on the
calibrator.
Fixed Sample Flow Monitors (with sample pump)
1. Connect a sample line from the span outlet to the monitor.
2. Switch the mode selector to SPAN WITH OVERFLOW, so that the cali-
bration gas exits at the span outlet and at the scrubbed overflow vent.