User Menu

Educational Videos

Video Title Summary What you will learn. YOU WILL… Products Showcased Applications
Addressing Thermocouple Vacuum Gauge Tube Contamination This video describes how a thermocouple vacuum gauge tube works and provides a demonstration of how to use an otoscope to see if there is a contaminated tube and how to clean it.
  • Understand how a thermocouple vacuum gauge tube works
  • Articulate the impacts of contamination
  • How to use an otoscope to detect contamination
  • How to use a simple way of cleaning the tube to maintain accuracy
  • Illustrating vacuum regulation with balloons in a cookie jar | Model 450 by DigiVac Understanding vacuum as it relates to pressure isn’t trivial. Here we show our vacuum controller regulating pressure at a user setpoint to blow up balloons!
  • Understand how a vacuum gauge regulatespressure
  • Observe the use of a “set point” in a vacuum experiment
  • Recognize that pressure external to a balloon decreases as pressure inside the ballon increases
  • Model 450
    Simple Vacuum Control Customer problem: how can you help us control our pump? Digivac used a wide range vacuum gauge with at least one control, to test, calibrate and return to the customer in optimal condition.
  • Observe a vacuum gauge calibration.
  • Describe the calibration process.
  • Understand how a vacuum gauge can regulate pressure.
  • Explain the importance of accurate vacuum gauge calibration to NIST standard.
  • Model 200 2C
    A Nice Slow Automatic Evacuation Customer needed a slow evacuation of the vessel (probably so as not to disturb the contents) and to maintain a ramp rate of vacuum, starting at atmospheric pressure (starting at 167 torr per hour slowly evacuate the level until 1 torr was reached). At .5 torr they wanted a blower to turn on. Using Digivac Model 450, Digivac customized an engineering solution to this problem. Digivac suggested installing the control mounted on their plumbing to prevent contamination. Use of slow evacuation is necessary in medical as well as laboratory applications. Customer wanted control mounted on their plumbing
  • Recognize the necessity of slow evacuation for some applications (where the contents being evacuated should not be observed ie bodily fluids during surgery).
  • Learn how vacuum gauges can be customized to meet your vacuum needs, espeically in the case of where a slow evacuation is needed.
  • Observe a slow evacuation OEM customization that can meet the need for medical and laboratory applications.
  • Model 450 and 801W
    Aspiration Control Overview In this demonstration, controlled aspiration is demonstrated using a very simple set up. With this set up, aspiration/evacuation can be controlled by a vacuum gauge controller, display, power supply and valve. Medical applications include any situation where a substance needs to be aspirated (can be fat, bodily fluids, etc. This would be used in a situation where controlled aspiration is necessary.
  • Observe vacuum assisted aspiration using two methods: tradiational and using vacuum gauge technology.
  • Understand the need for controlled aspiration for some applications.
  • for the medical market
    DigiVac Vacuum Pump Test In this demonstration, a Richey vacuum pump is tested using a Digivac vacuum gauge Model 100 V
  • Observe how to test a vacuum pump using a Model 100V, varian 531 sensor, and adapted rubber stopper.
  • Appreciate the scientific application of vacuum gauge instrumentation to test a vacuum pump.
  • Model 100 V
    DigiVac Bullseye Precision Gauge Feature Overview This video describes features of BullsEye Precision Gauge and its instrumentation. Analytics allows you to see auto scaling graph that will give you the highest, current, and lowest readings, a history of what is going on in your system, and identify leaks.
  • How to use the Bulls Eye Precision Gauge to identify if you have a bad tube or disconnected tube.
  • How to use a Bulls Eye Precision gague to see current vacuum readings, leak rate, and analysis graphs (includes highest, current and lowest readings).
  • Using a Bulls Eye Precision Gauge, you will be able to select a set point of vacuum for your system.
  • Example and
    Limitations of Bleed Type Vacuum Regulation
    Customer wants to control vacuum in .5 gallon vessel from .5-30 Torr. Digivac engineered a system that includes the vessel, capacitance manometer, bleed valve, and Welch 1405 vacuum pump, Model 201 with a control loop to maintain the set point. Model 201 is interpretting data from the capacitance manometer. and also a Using an inexpensive approach, you can use a digital vacuum gauge and REACT software computer to control vacuum, sense change, use set points and observe vacuum in your system. Limitations of vacuum control: 1. in upstream vacuum control bleeding error (not good in dirty environment), sensor and bleed valve is not in line (usually it is the same). 2. want sensor plumbed on vessel itself.
  • Understand the limitations of bleed type vacuum regulation.
  • List and know how to compensate for 3 limitations of vacuum control.
  • Appreciate the customization approach that integrates technology, practicality with cost effective, simplistic design.
  • Model 201, software
    Digivac Calibration (short version) Every vacuum gauge manufactured by Digivac is calibrated against NIST standards to ensure accuracy. Using 3 vacuum pumps (rotary driven oil based pump, rough vacuum oil based pump, high vacuum diffusion pump. 10 ports to test vacuum gagues. Tom Bassi states, “Calibration is taking an instruments readings of known or correct magnitude and applying them to another instrument of which we are unsure of the readings.” Vacuum gauges of different sensitivities are used depending on the vacuum insturment being tested.
  • Observe calibration of vacuum gauges.
  • Describe the process and instrumentation required to calibrate instruments.
  • Appreciate the importance of NIST calibration.
  • Model 801W
    DigiVac Model 450 Vacuum Regulation Vacuum control demonstrated using Model 450
  • How a vacuum gauge can be used in your vacuum process to monitor and regulate vacuum.
  • Appreciate the scientific application of vacuum gauge instrumentation to test a vacuum pump.
  • Model 450 distillation simulate vacuum processes
    DigiVac Calibration Every vacuum gauge manufactured by Digivac is calibrated against NIST standards to ensure accuracy. Using 3 vacuum pumps (rotary driven oil based pump, rough vacuum oil based pump, high vacuum diffusion pump. 10 ports to test vacuum gagues. Tom Bassi states, “Calibration is taking an instruments readings of known or correct magnitude and applying them to another instrument of which we are unsure of the readings.” Vacuum gauges of different sensitivities are used depending on the vacuum insturment being tested.
  • Learn how vacuum gauges are calibrated.
  • Describe the process and instrumentation required to calibrate instruments.
  • Appreciate the importance of NIST calibration.
  • Model 200 Pirani, Model 801W
    Downstream Vacuum Control Overview Model 450 used for downstream vacuum control. The Model 450 works easily with any system. In customization example, a customer wanted to use a .5 gallon vessel and control vacuum from .5 to 30 Torr using capacitance manometers. This set up was achieved and will work in any environment requiring 1-760 Torr.
  • Be able to apply a vacuum gauge for downstream vacuum control.
  • Observe downstream vacuum control for a customer application in a .5 gallon vessel.
  • Observe vacuum instrumentation used to change set point.
  • Model 450
    Overview of Upstream Vacuum Regulation System: .5 gallon that we want to maintain vacuum from .5 to 5 Torr. Connect vessel to a vacuum pump, 10 Torr capacitance manometer and a bleed valve. Connected to Model 201 which will sense vacuum and control it using the bleed valve. Using the React Software, the user can change the set point to the desired set point. The change is observeable immediately on the vacuum gauge.
  • Understand how to use a vacuum gauge to regulate upstream vacuum.
  • Observe upstream vacuum control in a .5 gallon vessel.
  • You will observe vacuum instrumentation used to change a set point.
  • Model 201 multigauge