1. Introduktion
This manual provides detailed instructions for the proper use, setup, operation, maintenance, and troubleshooting of the Elitech VG-760 Digital HVAC Micron Vacuum Gauge. This device is designed for accurate vacuum measurement in HVAC and refrigeration systems, ensuring efficient and reliable performance.
The Elitech VG-760 is a robust digital vacuum gauge featuring a wide measurement range, high accuracy, and multiple measurement units. It is built with an IP65 rating for enhanced protection against environmental factors.
2. Sikkerhedsoplysninger
- Always wear appropriate personal protective equipment (PPE) when working with HVAC/R systems.
- Ensure the system is depressurized before connecting or disconnecting the vacuum gauge.
- Do not expose the gauge to extreme temperatures or corrosive substances.
- Handle the gauge with care to prevent damage to the sensor.
- Hold enheden væk fra børn.
3. Produktet er slutview
The Elitech VG-760 Digital HVAC Micron Vacuum Gauge is designed for precise vacuum measurement. Its compact design and clear display make it suitable for various applications.
Figure 1: Elitech VG-760 Digital Vacuum Gauge, showing its compact design and digital display.
3.1 Nøglefunktioner
- Wide Measurement Range: 0-19000 Microns.
- High Accuracy: ±10% or ±10 Micron.
- Multiple Measurement Units: inHg, Torr, psi, mbar, mTorr, Pa, micron, Kpa.
- Settable High/Low Pressure Alarms.
- IP65 Rated for enhanced protection.
- Long Battery Life: Up to 300 hours with 3 AA batteries.
3.2 Display- og knapfunktioner
Figure 2: Elitech VG-760 display elements and button controls. 1. Battery Level, 2. Auto OFF (15 min), 3. Current Vacuum Value, 4. Units. Buttons: A (Backlight on/off), B (Power on/off), C (Switch units). Pressing A+B enables auto-off.
Figure 3: The Elitech VG-760 supports 8 different measurement units: inHg, Torr, psia, mbar, mTorr, Pa, micron, and kPa.
3.3 Filtering Components
Figur 4: Eksploderet view of the Elitech VG-760's multiple filtering system, including the O-ring, Filter Net, Filter Cotton, and 1/4" SAE Fitting, designed to protect the sensor from contaminants.
4. Opsætning
4.1 Udpakning
Upon receiving your Elitech VG-760, carefully unpack all components. The packing list typically includes:
Figure 5: Contents of the Elitech VG-760 package, including the vacuum gauge, user manual, AA batteries, zip bag, filter cotton, filter net, and O-rings.
- 1 x Vacuum Gauge
- 1 x brugermanual
- 3 x AA batterier
- 1 x Zip Bag
- 2 x Filter Cotton & Filter Net
- 2 x O-ring
4.2 Batteriinstallation
- Locate the battery compartment on the back of the gauge.
- Åbn dækslet til rummet.
- Indsæt 3 AA-batterier, og sørg for korrekt polaritet.
- Luk batterirummets dæksel forsvarligt.
4.3 Tilslutning til systemet
The VG-760 features a 1/4" SAE male flare fitting for connection to HVAC/R systems. Ensure all connections are tight to prevent leaks.
Video 1: Demonstrates how to connect the Elitech VG-760 to an HVAC system using a T-connector and bend adapter for vacuum measurement. It highlights the oil-proof film protection on the sensor and the process of attaching the gauge to a vacuum pump.
- Attach the VG-760 to the system using appropriate fittings (e.g., T-connector and bend adapter).
- Ensure the connection is secure and leak-free.
5. Betjeningsvejledning
5.1 Tænd/sluk
Tryk på Magt button (center button) to turn the gauge on or off.
5.2 Backlight Control
Tryk på Baggrundsbelysning button (left button) to toggle the display backlight on or off for improved visibility in various lighting conditions.
5.3 Skift af måleenheder
Tryk på ENHEDER button (right button) to cycle through the available measurement units: inHg, Torr, psi, mbar, mTorr, Pa, micron, and Kpa.
5.4 Auto-sluk-funktion
The gauge features an auto-off function to conserve battery life. To enable or disable this feature, press and hold both the Baggrundsbelysning og Magt knapper samtidigt.
5.5 Fortolkning af aflæsninger
The gauge displays the vacuum value in real-time. If the display shows dashes (-----), it indicates that the current pressure exceeds the measurement range of the gauge (above 19,000 microns).
6. Vedligeholdelse
6.1 Sensorrensning
If the vacuum gauge sensor becomes contaminated with oil, it may display no value or inaccurate readings. In such cases, it is necessary to clean the vacuum sensor.
Video 2: Illustrates the importance of cleaning the vacuum sensor if it becomes contaminated with oil, as contamination can prevent accurate readings. The video shows how to access and clean the sensor using a solvent.
- Disconnect the gauge from the system.
- Carefully remove the 1/4" SAE fitting to expose the sensor.
- Use a suitable solvent (e.g., isopropyl alcohol) and a lint-free cloth or cotton swab to gently clean the sensor surface.
- Allow the sensor to dry completely before reassembling.
- Replace the O-ring, filter net, and filter cotton as needed to ensure proper sealing and filtration.
6.2 Generel pleje
- Store the gauge in its protective zip bag when not in use.
- Avoid dropping or subjecting the gauge to strong impacts.
- Tør ydersiden af med en blød, damp cloth as needed. Do not use abrasive cleaners.
7. Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Gauge does not power on | Døde eller forkert installerede batterier | Udskift batterierne eller kontroller polariteten |
| Display shows dashes (-----) | Pressure is above 19,000 microns (out of range) | Continue evacuation until pressure drops within range |
| Inaccurate or no reading | Contaminated sensor (oil, debris) | Clean the vacuum sensor as per maintenance instructions |
| Inaccurate or no reading | System leak | Check all connections for leaks and repair as necessary |
8. Specifikationer
Figure 6: Elitech VG-760 dimensions and key technical specifications.
| Parameter | Værdi |
|---|---|
| Produktdimensioner | 4.92 x 1.38 x 2.76 tommer |
| Varens vægt | 15.52 Ounces (0.6 lbs) |
| Varemodelnummer | VG-760 |
| Batterier | 3 AA batterier (medfølger) |
| Fabrikant | Elitech |
| Materiale | Plast |
| Måleområde | 0-19000 mikron |
| Nøjagtighed | ±10% or ±10 Micron |
| Driftstemperatur | 0 ° F ~ 140 ° F (-17.8 ° C ~ 60 ° C) |
| Montering | 1/4" SAE Male Flare |
| Batterilevetid | Op til 300 timer |
| Beskyttelsesniveau | IP65-klassificeret |
9. Garantioplysninger
Elitech products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or contact Elitech customer support. Keep your purchase receipt as proof of purchase for warranty claims.
10. Kundesupport
For technical assistance, troubleshooting, or any inquiries regarding your Elitech VG-760 Digital HVAC Micron Vacuum Gauge, please contact Elitech customer support.
- E-mail support: Tilgængelig 24/7
- Telefonsupport: Available for US customers
Besøg venligst den officielle Elitech webwebsted for de mest opdaterede kontaktoplysninger og supportressourcer.
