Xetron Digital Vacuum Gauge User Manual

Introduction

This manual provides comprehensive instructions for the safe and efficient operation, maintenance, and troubleshooting of your Xetron Digital Vacuum Gauge, Model VGW-10X. Please read this manual thoroughly before using the device to ensure optimal performance and longevity.

Figure 1: Xetron Digital Vacuum Gauge VGW-10X connected to a smartphone via the AI Tools app.

Packing List

Upon opening the package, verify that all items listed below are present and in good condition.

• Vacuum meter x 1 (VGW-10X)
• Metal fitting x 1
• Filter cotton x 3
• User manual x 1
• O-ring x 2
• Protective bag x 1

Figure 2: Contents included in the VGW-10X package.

Setup

1. Charging the Device

The VGW-10X is equipped with a high-capacity lithium battery, providing up to 20 hours of continuous operation on a single charge. Use the provided Type-C charging port to recharge the device. Ensure the device is fully charged before initial use for optimal battery life.

2. Connecting to the "AI Tools" App

The vacuum gauge utilizes Bluetooth for seamless connectivity with your mobile devices, allowing real-time monitoring and advanced functionality via the "AI Tools" mobile application.

1. Press the power button on the VGW-10X to turn it on. If the screen displays "------", it indicates normal atmospheric pressure and is not a defect. The vacuum value will display once connected to a refrigeration system.
2. Search for "AI Tools" in your device's App Store (iOS) or Google Play Store (Android), or scan the QR code located on the back of the product to download the app.
3. Open "AI Tools" and click "Search near by Device". Once the device name appears, select it to connect. Registration is not required.

Figure 3: Step-by-step guide for connecting the VGW-10X to the AI Tools app.

Operating Instructions

1. Device Display Overview

Understand the various indicators on your VGW-10X display for effective monitoring.

Figure 4: Detailed explanation of the VGW-10X display elements.

• Icon [REC]: Displays when recording is enabled.
• Vacuum display: Shows the currently measured vacuum value. Units can be set to microns, Torr, mTorr, inHg, Pa, KPa, mbar, or psia.
• Icon [ ]: Displays when Bluetooth connection is active.
• Icon [ ]: Indicates battery capacity (four levels: >75%, >50%, >25%, <5%).
• Temperature display: Shows the currently measured temperature. Measurement parameters include TH2O (evaporation temperature of water), Tamb (ambient temperature), and ΔT (Tamb-TH2O). Units can be set to °C/°F.

2. Advanced APP Functionality ("AI Tools")

The "AI Tools" app enhances the functionality of your vacuum gauge, providing robust features for professional use.

• Real-time Monitoring: Monitor evacuation progress in HVAC or heat pump systems directly from your mobile device.
• Data Logging: Log vacuum and temperature data for comprehensive analysis.
• Target Setting: Set decay target values for leak tests.
• Graphical Data View: View real-time data in intuitive graphs.
• Alerts & Vibrations: Receive instant notifications or vibrations when vacuum values reach set targets (evacuation/decay).
• Documentation: Generate reports in PDF or Excel formats for record-keeping and client presentation.

Figure 5: The AI Tools app provides alerts and vibrations upon reaching evacuation/decay targets.

3. Temperature Compensation

The VGW-10X features an advanced ambient compensating design that automatically adjusts for varying temperature conditions. This ensures accurate readings without the need for manual adjustments, improving reliability in diverse environments.

Figure 6: Temperature compensation ensures accurate measurements regardless of ambient temperature.

4. Understanding Water Status in Cooling Systems

The device helps you understand the physical status of H2O (liquid or vapor) within a cooling system by comparing ambient temperature and water saturation temperature. This insight is crucial for proper system evacuation.

Figure 7: Visual representation of H2O states (liquid vs. vapor) in a cooling system.

Maintenance

1. Sensor Cleaning

To maintain accuracy, regularly inspect the sensor for any oil stains or contamination. If the screen displays "------" and it's not due to being out of range, a polluted sensor or film layer may need cleaning. Refer to the troubleshooting section for more details on this error.

2. Battery Care

Recharge the device using the Type-C port when the battery indicator shows low capacity. Avoid fully discharging the battery frequently to prolong its lifespan. Store the device in a cool, dry place when not in use for extended periods.

Troubleshooting

"------" Display on Screen

If the screen displays "------", it typically indicates one of the following conditions:

• Out of VGW-10X measuring range: The vacuum level is outside the device's measurable range (1 to 19000 microns). Refer to the specifications for detailed range limits for each unit.
• High precision sensor polluted: The sensor or its film layer may be contaminated and requires cleaning.
• High precision sensor damaged: The sensor may be physically damaged. In this case, contact customer support.

Figure 8: Reasons for "------" display and measurement ranges.

Special Notes for Use

Adhering to these guidelines will help ensure accurate readings and proper device function:

• Before using the vacuum gauge, check for any oil stains on the joint. Exclude sensor contamination by oil.
• Connect the micron gauge as vertically as possible to the system. Liquid in the pipeline will directly enter the vacuum gauge chamber through the joint due to gravity, which can affect readings.
• Vacuum gauges should be connected to the system as far away from the vacuum pump as possible. The vacuum gauge measures the vacuum value at your connection point. To measure the true vacuum value in the refrigeration system, it needs to be measured closer to the system for accuracy.
• Before turning off the vacuum pump, close the valve to isolate the pump from the system. A small amount of air in the valve body can affect the accuracy of the system's vacuum value.

Figure 9: Important considerations for connecting and using the vacuum gauge.

Specifications

Warranty and Support

Warranty Information

The Xetron Digital Vacuum Gauge comes with a one-year coverage from the date of purchase. This warranty covers manufacturing defects and ensures continuous assistance for product-related issues.

Customer Support

For any inquiries, technical assistance, or warranty claims, please contact Xetron customer support. You can also visit the official Xetron store on Amazon for more information and resources: Xetron Store.