Most people are aware that the HVG-2020B wide range vacuum gauge has an optional display, but not everyone realizes that it's much more than just a display. It's actually a color touchscreen display and is packed with features. Let's take a look.
The HVG-2020B has 5 different display modes. Simply touch the icon on the lower left side to toggle through each one.
Available Views
- Pressure View: gives the pressure and units. Touching the pressure reading will toggle between decimal notation and scientific notation. Touching the units will cycle through available units (TORR, MBAR, KPA, PSIA, PSIG, ATM, BAR, PA).
- Pressure and Temperature View: The screen adds a temperature indication. It is only meant to be a visual aid indicating ambient temperature (± 1.5 °C). Touching the temperature will toggle between °C and °F.
- Setpoint View: The HVG-2020B has two setpoints. This view provides visual indicators of Hi and Lo setpoints. If the indicator is green the setpoint is active. The Hi setpoint is active when the pressure is above its setting and the Lo setpoint is active when the pressure is below its setting. The two settings may be different. Touching the Hi and Lo indicators will bring up a screen allowing the corresponding setpoint to be adjusted. Use the left/right arrows to select the digit and the up/down arrows to change the value of the digit.
- Bar Graph View: A graphical indication of the current pressure on a log scale. Use it to quickly identify your desired pressure from across the room without having to read a number.
- Graph View: A graphical indication of the pressure over time. Use it to identify the presence of a chamber leak and differentiate between a real leak and outgassing. Touching the screen anywhere will bring up a screen allowing the user to adjust the time (in seconds) per sample (displayed point). Use the left/right arrows to select the digit and the up/down arrows to change the value of the digit.
Menu Features
There are many more features that can be accessed simply by touching the Menu icon on the lower right side. Useful Menu features include:
- Screen Orientation
- Set Zero
- Device Info
- Analog Output
- Serial Port
- Restore Factory Defaults
One of the most useful features is the ability to change the screen orientation. The HVG-2020B can be mounted in any orientation. This feature allows the user to rotate the screen to a position that is easy to read.
The HVG-2020B is a wide range vacuum gauge that uses both pirani and piezoresistive technology to accurately measure 10-4 Torr to 1000 Torr. Learn more about the HVG-2020B at:
https://www.teledyne-hi.com/products-services/vacuum-measurement-and-control/hvg-2020b