Description
Product Summary
The Supco VG640D Dual Port Vacuum Sentry is a professional-grade replacement part from Supco (Sealed Unit Parts Co.), a trusted name in HVAC/R and appliance parts since 1945. Dual port, high resolution, fast response digital vacuum gauge provides ultimate productivity. The Vacuum Sentry guards system service activity and provides notification when preset alarm thresholds are met.
Vacuum gauges for verifying evacuation and confirming a dry, tight system before charging.
Key Features
- Audible and visual alarm for high and low vacuum
- Auto shut-off
- Backlit LCD
- Convenient built-in hanger
- Display updates every 1/2 second
- East to clean sensor (with Isopropyl Alcohol)
- Low battery indicator
- Reads vacuum in Microns, milliBar, Pascals, Torr, & milliTorr
- Ultra fine resolution (Best 0.5 micron when vacuum is less than or equal to 140 microns.)
- WARNING: Prop 65 info
Specifications
| Brand | Supco |
|---|---|
| Part Number | VG640D |
| Part Type | Vacuum Gauge |
| Best resolution | 0.5 Microns (0-140 microns) |
| Operating Temperature Range | 0°F to 150°F (-17°C to 65°C) |
| Overpressure | 800 psi max. (55 Bar) |
| Power source | 3 AA batteries |
| Sensor type | Thermistor |
| Connector type | Dual standard 1/4" male flare |
| Vacuum Range | 0 to 19,000 Microns |
| Parameter Scale | Microns, mBars, Pascals, Torr, milliTorr |
| Fitting | 1/4" SAE Flare Fitting , 45° thread |
Frequently Asked Questions
Is ‘Temp out of range’ repairable in the field?
No, it will need to be replaced by the distributor it was purchased from.
Does the sensor need to be cleaned?
Yes. The gauge works best with periodic cleaning.
What is the maximum operating pressure of the VG vacuum gauges?
500 PSI
My vacuum gauge screen reads 'Calibrating', is it OK to use?
Self calibration can take as long as 30 seconds and is performed every 15 minutes or when the VG64 senses a large ambient temperature change. When the unit is self calibrating and "Calibrating" is displayed, the vacuum value will not change.
There are no numbers on the display, just 3 dashes?
3 dashes indicate the gauge has not pulled down below 19000 microns, it is still reading at atmosphere.
Could not hold a stable reading, even when blocked off from a system. It seems to have an internal leak that prevents a consistent vacuum. Is Gauge possibly leaking, can't get accurate reading?
SUPCO VG64D does not function in the same manner as most vacuum gauges. This is due to the more sensitive sensor used in VG64D, it is always calculating any moisture in the system, as we as any Outgassing that is present. In light of this, once isolated, the readings will gradually increase, then level off. The leveled off micron reading will be higher than the pulled down number. If a leak was present, the reading would go all the way back up to atmosphere (ATM).
Related Parts
Commonly used with: Supco VGC.
White Paper
- Supco VG640D Product Specification Sheet (PDF)
- Supco VG640D Installation & Operation Manual (PDF)
- Supco VG640D Application Sheet (PDF)
What's Included
- (1) Supco VG640D Dual Port Vacuum Sentry
Safety: Always disconnect power and follow lockout/tagout procedures before servicing electrical components. Installation should be performed by a qualified technician.
