Best Micron Measurement Of Vacuum

The Fieldpiece Digital Vacuum Gauge Accessory, model AVG2, is a thermistor based digital millimeter accessory that digitally measures a vacuum of 50 to 2000 microns and converts that reading into millivolts DC on your compatible DMM or our electronic handle and data logger. LEDs provide a pump down indicator showing progress from atmospheric pressure. The sensor has been designed to withstand pressures up to 500 psi (3400kPa) so that no damage to the AVG2 will occur if it is exposed to full system pressures.

The use of a vaccum gauge is essential to insure that a repaired or newly installed system is clear of contaminants. Improper evacuation can lead to costly recalls and repairs. The digital vaccum gauge measures what takes place beyond 29″ of vaccum.

Robinair proudly introduces the RAVG-1; one of the most sophisticated Digital Micron (vacuum) Gauges available for field service. Packaged in the same convenient case as our successful Digital Pressure gauges, this standalone gauge is compact and can be used anywhere. The RAVG-1 employs a sophisticated MEMS Pirani type sensor that directly measures flow. Unlike all other field service gauges on the market, the RAVG-1 is not affected by temperature. The RAVG-1 measures vacuum from atmosphere to 10 microns in 6 different scales, and can withstand overpressure beyond 30 bar. The unit employs an industry first multi-color backlight that functions as an instant go/no go indicator of acceptable vacuum or leakage. The product is not designed to read zero when initially powered on. Once the gauge is ready to use it will display a nominal indication of atmospheric pressure, as well as the enunciator ATM. These values are simply indications of atmospheric pressure to show that the gauge is not detecting a vacuum. The product should not be used as a measure of true atmospheric pressure. The product can display vacuum in one of 6 different units of measure: Microns (of Mercury), Inches of Mercury (inHg), Millibars (mBar), Millimeters of Mercury (mmHg), Pascals (Pa), or Torr. To change the units of measure; press the UNITS button on the lower left of the gauge front. Each time the button is pressed the unit of measure is changed. The selected unit of measure is indicated by the enunciator along the bottom of the display. The product will start up in the scale it was in when it was powered off. The factory setting is Microns. Robinair, a Bosch Automotive Service Solutions brand, is a global leader in service tools and equipment based in Owatonna, Minnesota. Robinair is recognized throughout the world as the quality and performance leader in AC/R evacuation tools and this position has led to its success with the full range of products that serve the heating/ventilating/air conditioning/refrigeration (HVAC-R) and mobile markets, which includes the automotive aftermarket along with other industries such as agriculture and construction.

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Refrigeration HVAC Digital Manifold System Gauge safety standards for design and production.
1) The pressure measured by the digtal manifold pressure tester is gauge pressure.
2) Pressure testing ranges from -101Kpa to 6Mpa (-0.1bar to 60bar).
3) The limit pressure is 10 Mpa (100 bar).
4) The maximum operating pressure of standard hose is 600 PSI ( approximate 4.13 Mpa, 41.3 bar ). The limit pressure is 3000 PSI approximate 20.68 Mpa, 206.8 bar ).
5) Please confirm the rated pressure value of the tested equipment before testing. Do not use it if it exceeds the range of the instrument.
6) Do not use and store the instrument in high temperature, high humidity, flammable, explosive and strong electromagnetic fields.
7) Please do not change the instrument internal circuit, to avoid any damage of the instrument or danger occurring.
8) Please wear qualified protective equipment to protect user during testing.
9) Please use the instrument in a well-ventilated environment to prevent inhalation of toxic gases.

Specifications
Pressure test unit: Kpa; Mpa; bar; inHg; PSI.
Pressure test range: 0 Kpa – 6000 Kpa
Pressure test resolution: 1 Kpa
Pressure test accuracy: +/- 0.5 %(FS)+ 5dgt
Pressure overload limit: 10000 Kpa (10 Mpa; 100 bar;)
Vacuum test unit: Kpa; Mpa; bar; inHg; PSI.
Vacuum test range: -101 Kpa – 0 Kpa
Vacuum test resolution: 1 Kpa
Temperature test unit: °C (Celsius), °F (Fahrenheit)
Temperature test range: -40°C–150°C (-40°F–302°F)
Temperature test resolution:
0.1°C (-40°C–99.9°C), 1°C (100°C–150°C)
0.1°F (-40°F–99.9°F), 1°F (100°F–302°F)
Temperature test accuracy: +/- 0.5 °C + 2dgt +/- 0.9 °F + 2dgt

Packing list:
1x HVAC gauges
1x User Manual (in English)
2x Temperature Clip
3x Test Pipe
1x Suitcase

As a professional technician the assurance of a deep vacuum on a system is imperative. The main problem with many small handheld units is their inaccuracy and durability. Although the thermocouple sensor has been proven to be much more accurate and durable than the thermistor type, the problem has been the inconvenience of a cumbersome tabletop unit.

Mastercool’s hand held unit uses thermocouple technology. This vacuum gauge has been designed with the technician’s field environment in mind, allowing for self-calibration and a sensor that will not be damaged by small mists of oil. The Mastercool unit allows for a target vacuum range to be programmed with a light sensor indicator. Now you have the freedom to continue with your other work and come back to the system once you see the indicator light signaling your target vacuum.

Specifications:
• Response Time: 250 mSec.
• Sensor Cable: Spiral cable extended to 6.5 feet (2.6 meter)
• Sensor: Thermocouple sensor
• Connection Fitting: 1/4” flare female adapter
• Operating Temperature: 32 to 120˚F (0 to 45˚C)
• Power: 9V DC battery (AC/DC Adapter Optional)
• Battery Life: 36 hours
• Low Battery Indicator: Special ICON on LCD
• Vacuum Units: Micron, Torr, mTorr, mmHg, mBar, Pa
• Accuracy Range*: ATM-1000 Microns: +/-5% of reading 1000 – 100 Microns: +/-3% of reading, 100 – 1 Micron: +/-1.5% of reading
* Unit accuracy refers to sensor specifications and is based on optimal laboratory conditions. Field operations may greatly deviate from these levels.

INFICON Pilot Plus Vacuum Gauge incorporates several innovative features for unsurpassed performance. Like the Pilot, it’s the only gauge to use a Pirani sensor for greater accuracy and the ability to measure the entire vacuum process, from atmosphere down to one micron. You’ll know instantly if your connections are vacuum-tight. And Pilot Plus is even more unique: An industry-first filter protects the sensor from oil and other contaminants for more accurate readings, and saves you from having to clean the vacuum sensor. Quick calibration allows you to adjust Pilot Plus for slight variations in atmospheric pressure at your specific geographic location to ensure greater accuracy. You also get extended battery life of up to 45 hours from one 9V battery, to keep you productive on the job. That’s three times longer than before. To maximize that battery life, Pilot Plus shuts down after 60 minutes and saves the last reading for display again upon the next start up. User-friendly qualities of a large, easy-to-read LCD and included plastic storage case complete the Pilot Plus package