Specifications

AIREFRIG AUSTRALIA PTY LTD
ALL PRICES ARE EXCLUSIVE OF GST
RECOMMENDED LIST PRICES
SUBJECT TO CHANGE WITHOUT NOTICE
A.B.N. 95 008 761 573
EFFECTIVE MARCH 2014
528
VG200 VACUUM GAUGE SERVICING
VG200 Vacuum Gauge Servicing
The VG200 are simple to use precision digital readout vacuum gauges able to read in Hg",
microns, Torr and mbarr selectable by pressing the units button.
In order to maintain peak performance some simple periodic maintenance is required
to ensure the units internal vacuum sensor assembly remains as clean as possible.
We recommend a quick visual inspection of the sensor assembly gasket daily and cleaning
whenever you notice any oil on the gasket. This brochure outlines this simple cleaning procedure.
Ensure you have access to a vacuum pump prior to cleaning, you will need to connect your VG200
to a vacuum pump for at least 15 minutes to evacuate moisture from the sensor immediately after cleaning.
Routine cleaning and service:
1. Remove the valve core depressor (if fitted) and the black HXG gasket with needle nose pliers.
2. Inject methylated spirits into the sensor to fill the gasket cup, a standard medical syringe is perfect for this task.
3. Hold the unit in one hand and place your thumb over the gasket cup area.
4. Using your hand to create a swirling motion will encourage the methylated spirits to enter the sensor chamber.
5. Repeat from Step 2 until the sensor is full and will not take anymore liquid.
6. Use a continuous swirl motion with the unit to create swirling effect of the solution in the housing for 15 seconds.
7. Invert and flick the unit (sensor out) to eliminate the bulk of the solution from the sensor assembly.
8. Insert a new HXG gasket (flat surface down 45˚ chamfer out) and re-fit the HXD valve core depressor if required.
Place your VG200 on a vacuum pump for at least 15 minutes to evacuate any remaining moisture.
9. When not in use store your vacuum gauge in it‘s padded protective bag. As with any electronic device if it is
going to be stored for an extended period of time consider the removal of the batteries.
Precautions with the VG200:
• There are no user serviceable parts inside the case.
• Keep away from dust, dirt and water.
• Clean the plastic case with a soft moist cloth. DO NOT USE SOLVENT BASED CLEANERS.
• Regularly inspect the HXG gasket seal for signs of oil, if oil is evident perform the above cleaning procedure.