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MG44 – Wireless Vacuum Gauge

Rugged, accurate and wireless

Where to Buy

  • Confidently perform evacuations with a reliable, leak-proof seal.
  • Reversible angled coupler and new cylindrical design are easier to fit into tight spaces.
  • There are three ways to use: Stand Alone, Job Link® System App & SMAN® Manifold Screen
  • There are three ways to view: Rate, Bar Graph & Rate Meter
  • IP54-rated weather-resistant.
  • Rugged over-molded construction for extreme impact resistance.
  • A2L Compatible

Designed for the field.
Like every piece of Fieldpiece hardware, the Wireless Vacuum Gauge (MG44) is built to make your work easier. It helps eliminate misleading measurements by allowing you to connect it at the system port  – even those awkward, hard-to-reach spots. It’s also housed in a rugged impact- and weather-resistant case.

Install anywhere – even one-handed.
The new, smaller cylindrical shape of the Wireless Vacuum Gauge, its no-slip grip, and the addition of a reversible angled coupler—mean the MG44 is easy to manipulate and install in the toughest spots.

Three ways to use.

  • Stand Alone
  • Job Link® System App
  • SMAN® Manifold Screen

Three ways to view.

  • Rate
  • Bar Graph
  • Rate Meter

 

Pick up a wireless vacuum gauge right now.

Read More

Specifications User Manuals Print Material FAQs

Pick one up today.

Where to Buy

MG44 – Wireless Vacuum Gauge

Rugged, accurate and wireless

  • Confidently perform evacuations with a reliable, leak-proof seal.
  • Reversible angled coupler and new cylindrical design are easier to fit into tight spaces.
  • There are three ways to use: Stand Alone, Job Link® System App & SMAN® Manifold Screen
  • There are three ways to view: Rate, Bar Graph & Rate Meter
  • IP54-rated weather-resistant.
  • Rugged over-molded construction for extreme impact resistance.
  • A2L Compatible

Designed for the field.
Like every piece of Fieldpiece hardware, the Wireless Vacuum Gauge (MG44) is built to make your work easier. It helps eliminate misleading measurements by allowing you to connect it at the system port  – even those awkward, hard-to-reach spots. It’s also housed in a rugged impact- and weather-resistant case.

Install anywhere – even one-handed.
The new, smaller cylindrical shape of the Wireless Vacuum Gauge, its no-slip grip, and the addition of a reversible angled coupler—mean the MG44 is easy to manipulate and install in the toughest spots.

Three ways to use.

  • Stand Alone
  • Job Link® System App
  • SMAN® Manifold Screen

Three ways to view.

  • Rate
  • Bar Graph
  • Rate Meter

 

Pick up a wireless vacuum gauge right now.

MG44 – Wireless Vacuum Gauge

Specifications

  • Minimum Device Requirement: BLE 4.0 devices running iOS® 7.0 or Android™ 5.0 (Latest compatibility at www.fieldpiece.com)
  • Connector type: 1/4” SAE male fitting
  • Accuracy: ±(5% of reading + 5 microns) at 77°F (25°C), 50 to 2000 microns
  • Range and Units: 50 to 25000 microns of mercury (English), 6 to 3333 Pascals (Metric), 0.06 to 33.33 mBar (Metric), 50 to 25000 mTorr (Metric), 0.05 to 25 Torr (Metric, equivalent to mmHg)
  • Best Resolution: 1 micron of mercury (below 2000 microns), 1 Pascal (below 250 Pascals), 0.001 mBar (below 2.5 mBar), 1 mTorr (below 2000 mTorr), 0.001 Torr (below 2.5 Torr, equivalent to mmHg)
  • Battery Type: 2 x AA Alkaline, NEDA 15A, JIS UM3, IEC LR6
  • Battery Life: 40 hours typical alkaline
  • Auto Power Off: 15 minutes default (APO adjustable)
  • Wireless Range: 1000 feet (305 meters) line of sight. Obstructions affect distance.
  • Radio Frequency: 2.4 GHz
  • Water Resistance: IP54
  • Operating Environment: 14°F to 122°F (-10°C to 50°C) at <75% RH
  • Storage Temperature: -4°F to 140°F (-20°C to 60°C) at <80% RH (with batteries removed)
  • Weight: 0.66 lbs (300 g)
  • US Patent: www.fieldpiece.com/patents

Operation Manual MG44 v07 Operation Manual MG44 v07

  • Why does my MG44 read - - - - ?

    • The MG44 has a measuring range between 50-25,000 microns. Anything outside of that range will show the 4 dashes – – – -.  The bar graph will show a wider range from deep vacuum up to atmosphere. The MG44 has a measuring range between 50-25,000 microns. Anything outside of that range will show the 4 dashes – – – -.  The bar graph will show a wider range from deep vacuum up to atmosphere.

  • Why do my microns jump up when I turn off my vacuum pump?

    • The moisture inside the system is still boiling off and is no longer being taken out or compensated for by the vacuum pump.  The system will have to come to an equilibrium/ stabilizing.

  • How do I check if MG44 is leaking or not?

    • Connect MG44 to empty recovery tank and pull down to 500 microns and isolate the pump from recovery tank and microns should rise slowly not immediately /fast rise.

  • Why will my MG44 show microns when directly hooked up to pump but not when I am pulling on a system?

      1. Evacuation takes time.  You are pulling a vacuum in a larger volume (ac unit + vacuum pump) compared to just a vacuum pump.  Check that there are no leaks in your hoses, change the oil of the vacuum pump, and perform a triple evac if there is an indication of a lot of moisture in the system.
        • Leak is somewhere in the system connection
        • Check all hoses for possible leaks
        • Moisture is present in the system and it will take some time
        • Perform triple evacuation on system

        Change the oil in the vacuum pump

  • How to clean/ maintain MG44?

    • Clean the sensor of the MG44 with rubbing alcohol.  Do not stick anything into the sensor. Doing so will damage the sensor Check manual for details

  • Where is the best location to put the MG44 for most accurate micron reading?

    • Connect to the system. Techs typically prefer connecting to the Schrader Core Removal Tool (SCRT) or an unused service port

  • How to sync MG44 to Job Link?

    • If using the Job Link mobile app as a display, add the MG44 to the tool manager in the app.

  • Why are my microns inaccurate?

    • Microns being inaccurate is a sign of oil holding moisture either inside the block of the manifold, In the hoses or the oil in your vacuum pump needs to be changed.

      Clean sensor periodically with rubbing alcohol.

  • What is the wireless range?

    • 1000 FT line of sight

  • Can I connect the MG44 to the SMAN digital manifold?

    • First, the new wireless micron gauge MG44 works with SM380v/480v and not with previous generation wireless SMAN460.  Existing SM380v/480v will require a firmware update in order to use with MG44.  The firmware update instructions are available on the Fieldpiece website, go to https://www.fieldpiece.com/download-software-firmware-updates/.  And production as of June 1, 2021 will include the newest firmware.

       

  • Is the MG44 A2L compatible?

    • Yes. For use only by qualified and certified technicians in the safe use, handling, and transporting of refrigerants.  Please refer to flammable refrigerant safety guides, regional codes and legislation for more information.

 

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