1. Introduction
The Elitech PGW-800 is a state-of-the-art wireless digital pressure gauge designed for precise measurement and analysis in AC and refrigeration systems. It offers a wide pressure range, high accuracy, and seamless integration with a mobile application for advanced functionalities like real-time data display, superheat/subcool calculations, and data logging. This manual provides essential information for the safe and effective use of your PGW-800.
2. Package Contents
Please check the package carefully to ensure all items are present and undamaged:
- 1 x PGW-800 Pressure Gauge
- 3 x AA Alkaline Batteries
- 1 x User Manual (this document)
- 1 x 1/4'' Male Adapter
- 1 x 1/4'' Female Adapter
- 1 x Bent Adapter
- 1 x Zipbag
Image: Elitech PGW-800 with included user manual and various adapters.
3. Product Overview
Familiarize yourself with the components and controls of the PGW-800:
Image: Front view of the PGW-800 showing its dimensions (74mm width, 127mm height, 37mm depth).
Image: Side view of the PGW-800 with labels for LCD Display, Backlight button, Units button, On/Off button, Hold/Zero/Rec button, and Wireless Connection indicator.
Key Features:
- Switchable Units: Easily switch between various temperature and pressure units.
- Free Mobile App: Connects to iOS and Android devices for enhanced functionality.
- Extensive Refrigerant Database: Supports over 140 types of refrigerants.
- Real-time Superheat/Subcool: Automatic calculation for precise system analysis.
- High/Low Pressure Alarm: Customizable alarms with app notifications.
- Data Logging: Saves up to 9443 points of offline records.
- IP65 Protection Grade: Durable design for various working environments.
Image: Overview of PGW-800 features, including real-time superheating/subcooling, settable alarms, pressure range, record saving, and IP65 protection.
4. Specifications
| Parameter | Value |
|---|---|
| Pressure Measuring Range | -14.5 ~ 800 psi |
| Resolution | 0.5 psi |
| Accuracy | ±0.5%FS (at 22-28℃) |
| Maximum Overload Pressure | 1000 psi |
| Operating Temperature | -17.8℃ ~ 60℃ (0℉ ~ 140℉) |
| Offline Records | 9443 points |
| Power | 3 x AA Alkaline Batteries |
| Battery Life | 300 hours |
| Fitting | 1/8'' Male NPT |
| Wireless Range | 98 ft (30m) |
| Dimensions | 127mm x 73mm x 37mm (5 x 2.9 x 1.5 in.) |
| Measurement Units | psi, inHg, kg/cm², cmHg, bar, kPa, Mpa |
| Temperature Units | ℃ / ℉ |
| Refrigerant Types | 140+ (e.g., R410A, R134A, R22, R12) |
| Protection Grade | IP65 |
5. Setup
- Install Batteries: Open the battery compartment on the back of the device and insert 3 AA alkaline batteries, ensuring correct polarity. Close the compartment securely.
- Download the App: Search for the "Elitech" app on your mobile device's app store (iOS or Android) and install it.
- Connect to System: Screw the PGW-800 onto the desired pressure port of your AC or refrigeration system. Use the provided 1/4'' male, 1/4'' female, or bent adapters if necessary to ensure a secure and leak-free connection. The fitting is 1/8'' NPT.
- Power On: Press and hold the On/Off button () to turn on the device. The LCD display will light up.
- Pair with App:
- Ensure Bluetooth is enabled on your mobile device.
- Open the Elitech app. The app should automatically detect and connect to the PGW-800.
- The wireless connection indicator on the gauge () will illuminate or change status to indicate a successful connection.
6. Operating Instructions
6.1. Basic Operation
- Power On/Off: Press and hold the On/Off button to turn the device on or off.
- Backlight: Press the Backlight button () to toggle the display backlight.
- Switch Units: Press the "UNITS" button () to cycle through available pressure units (psi, inHg, kg/cm², cmHg, bar, kPa, Mpa). Temperature units (℃/℉) can be switched via the app.
Image: PGW-800 display showing different pressure units.
- Zero Function: With the gauge disconnected from any pressure source, press and hold the "ZERO" part of the HOLD/ZERO/REC button () to zero the pressure reading.
- Hold/Record: Press the "HOLD" part of the HOLD/ZERO/REC button to hold the current reading. Press the "REC" part to start/stop data recording (requires app connection for full functionality).
6.2. Mobile App Functions
The Elitech app unlocks the full potential of your PGW-800:
- Real-time Display: View current pressure values, temperature, superheat, and subcool in real-time on your mobile device.
Image: PGW-800 displaying pressure, connected wirelessly to a smartphone app showing data export options.
- Superheat & Subcool Calculation: The app automatically calculates superheat and subcool values for various refrigerants.
Image: Mobile app interface showing real-time superheat and subcool values.
- Refrigerant Selection: Access a built-in P/T chart and select from over 140 refrigerant types.
Image: PGW-800 display with a background showing a built-in database of refrigerants like R32, R134a, R22, etc.
- Alarm Settings: Set high and low-pressure alarms with notifications directly to your phone.
Image: Mobile app interface showing options for setting high/low pressure alarms.
- Data Reporting: Generate data reports and graphs in Excel and PDF formats for easy sharing and analysis.
Image: Mobile app interface showing options to export data in Excel and PDF formats.
7. User Tips
- Battery Conservation: To extend battery life, remember to turn off the backlight when not needed and power off the device when not in use.
- App Connectivity: If you experience connectivity issues with the app, ensure the gauge is within the 98 ft (30m) wireless range and that no major obstructions are blocking the signal. Restarting both the gauge and the app can often resolve minor connection problems.
- Zeroing Accuracy: Always zero the gauge before connecting it to a system to ensure the most accurate readings.
8. Maintenance
- Cleaning: Wipe the device with a soft, damp cloth. Do not use abrasive cleaners or solvents. Ensure the device is dry before storage.
- Battery Replacement: When the battery indicator shows low power, replace all three AA alkaline batteries promptly to ensure continuous operation and data integrity.
- Storage: Store the PGW-800 in its protective zip bag in a cool, dry place away from direct sunlight and extreme temperatures. Remove batteries if storing for extended periods.
- Fitting Care: Regularly inspect the 1/8'' NPT fitting and adapters for wear or damage. Replace if necessary to prevent leaks and ensure accurate readings.
9. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on | Dead or incorrectly installed batteries | Replace batteries with new AA alkaline batteries, ensuring correct polarity. |
| No wireless connection to app | Bluetooth off, device out of range, app issue | Ensure Bluetooth is on, device is within 30m, restart gauge and app, check app permissions. |
| Inaccurate pressure readings | Gauge not zeroed, faulty connection, sensor issue | Zero the gauge before use. Check for leaks at the fitting. If problem persists, contact support. |
| Display is dim or flickering | Low battery | Replace batteries. |
10. Warranty & Support
For warranty information, technical support, or service inquiries, please contact your retailer or the manufacturer directly. Keep your proof of purchase for any warranty claims.
