1. Introduktion
The Elitech DMG-4B is an intelligent digital manifold gauge designed for precise measurement and analysis in air conditioning and refrigeration systems. It features a high-precision digital sensor, Bluetooth connectivity for app control, and supports a wide range of refrigerants. This manual provides detailed instructions for the safe and efficient operation of your DMG-4B.
2. Sikkerhedsoplysninger
- Always wear appropriate personal protective equipment (PPE) when working with refrigerants and HVAC systems.
- Ensure the system is depressurized before connecting or disconnecting the manifold gauge.
- Udsæt ikke enheden for ekstreme temperaturer, fugt eller ætsende miljøer.
- Use only the specified battery type (2 x 1.5V AAA) and ensure correct polarity.
- Hold enheden væk fra stærke elektromagnetiske felter.
- Refer to local regulations and industry standards for safe handling of refrigerants.
3. Produktet er slutview
The DMG-4B features a robust design with an LCD display and intuitive controls for easy operation. Its compact size allows for convenient one-hand use.
3.1 Komponenter
- LCD Display
- Control buttons (Power, Mode, Clear)
- Visual scope
- Ventilknop
- Kølemiddelrørbeslag
- Connection port of refrigerant pipe (1/4 SAE)
- Ophængskrog
- Battery compartment (for 2 AAA batteries)
- Informationsetiket
3.2 Knapfunktioner
| Knap | Handling | Fungere |
|---|---|---|
Tænd/sluk-knap ( ) | Langt tryk | Tænd/sluk for strømmen |
| Kort tryk | Slå Bluetooth til/fra | |
| Tilstandsknap () | Langt tryk | Gå ind i indstillingsgrænsefladen |
| Kort tryk | Set interface switch setting options | |
| Clear Button () | Kort tryk | Switch refrigerant type |
| Langt tryk | Data zero-calibration (air pressure zero calibration range: 1-100psi) | |
| Mode + Clear | Tryk samtidigt | Switch measurement modes |
| Zero + Clear | Tryk og hold i 3 sekunder | Unlock and select refrigerant (flashing, auto-lock after 10s) |
4. Specifikationer
| Karakteristisk | Parameter |
|---|---|
| Måleområde | -14~800psi |
| Nøjagtighed | ± 1% fuld skala |
| Opløsning | 1psi (Pressure), 1°F (Temperature) |
| Interface | 1/4 SAE * 3 |
| Magt | 2 x 1.5V AAA batteri |
| Batterilevetid | Approx. 200 hours (off screen backlight display) |
| Vise | LCD |
| Værts dimensioner | 110 mm x 75 mm x 135 mm |
| Værts vægt | Ca. 700 g |
| Driftstemperatur | -10~50°C / 14~122°F |
| Opbevaringstemperatur | -20~60°C / 4~140°F |
| Understøttede sprog | kinesisk, engelsk |
| Default Refrigerants | R11, R12, R13, R22, R290, R32, R134a, R404A, R410A, R407C, R408A, R409A, R458A, R448A, R449A, R500, R502, R600 (38 types) |
| APP Supported Refrigerants | R113, R114, R115, R116, R12, R123, R1233ZD, R1234ZE, R1234YF, R124, R125, R13, R134a, R14, R141b, R142b, R143a, R152a, R170, R22, R23, R236Fa, R245Fa, R290, R32, R401A, R401B, R401C, R402A, R402B, R403B, R404A, R406A, R407A, R407B, R407C, R407D, R407F, R408A, R409A, R410A, R410B, R412A, R413A, R414A, R414B, R416A, R417A, R417C, R420A, R421A, R421B, R422A, R422B, R422C, R422D, R424A, R426A, R427A, R428A, R429A, R434A, R437A, R438A, R441A, R443A, R444A, R449A, R450A, R452A, R452B, R453A, R454A, R454B, R455A, R458A, R500, R502, R503, R507A, R508A, R508B, R514, R600, R600A, R601A, R718, R744 (140+ types) |
5. Opsætning og installation
5.1 Batteriinstallation
Open the battery compartment on the back of the device (Component 8 in Figure 1). Insert two 1.5V AAA batteries, ensuring correct polarity. Close the compartment securely.
5.2 Hurtig betjeningsvejledning
- Tænd: Tryk længe på afbryderknappen for at tænde enheden.
- Unlock Refrigerant Selection: Enter the pressure and temperature measurement interface. Press and hold the Mode and Clear buttons simultaneously for 3 seconds to unlock the refrigerant selection.
- Select Refrigerant: Short press the Mode or Clear button to select the desired refrigerant type. The refrigerant name will flash during selection and automatically lock after 10 seconds of inactivity.
- Opret forbindelse til systemet: Tilslut høj og lav voltage side hoses to the appropriate ports on the AC or refrigeration system under test. Ensure all connections are secure.
- Overvågningsparametre: Open the system under test. The system pressure and saturation temperature parameters can be monitored in real-time on the LCD display or via the mobile app.
6. Betjeningsvejledning
6.1 Grundlæggende betjening
- Tænd/sluk: Tryk længe på tænd/sluk-knappen.
- Bluetooth til/fra: Tryk kort på afbryderknappen.
- Indtastning af indstillinger: Long press the Mode button.
- Switching Settings Options: Short press the Mode button within the setting interface.
- Switching Refrigerant Type: Short press the Clear button.
- Data Zero-Calibration: Long press the Clear button. This is used for air pressure zero calibration within a range of 1-100psi.
- Switching Measurement Modes: Press Mode and Clear buttons simultaneously.
6.2 Valg af kølemiddel
The DMG-4B supports 38 default refrigerants. For an extended list of 140+ refrigerants, use the mobile application. To select a refrigerant on the device, follow step 2 and 3 of the Quick Operation Guide (Section 5.2).
7. App-forbindelse og -funktioner
The Elitech DMG-4B can be connected to a mobile application via Bluetooth for enhanced functionality and data management.
7.1 Oprettelse af forbindelse til appen
- Download the official Elitech app from your smartphone's app store.
- Ensure Bluetooth is enabled on your smartphone and the DMG-4B (short press Power button).
- Open the Elitech app and follow the on-screen instructions to connect to your DMG-4B device.
7.2 App funktioner
- Realtidsdata: View high and low pressure, evaporation and condensation temperatures, superheat, and subcooling in real-time.
- Custom Refrigerants: Access and customize a library of over 140 refrigerants.
- Data Recording & Export: Record measurement data and export reports (e.g., Excel, PDF). This may be a value-added service requiring in-app purchase.
- OTA-firmwareopgradering: Receive remote firmware updates for new features and improvements.
- Value-Added Services: The app offers additional features such as pressure holding mode, vacuum mode, charging warning, timer, and leak detection, which may require in-app purchases.
8. Vedligeholdelse
- Rensning: Tør enheden af med en blød, tør klud. Brug ikke slibende rengøringsmidler eller opløsningsmidler.
- Udskiftning af batteri: Replace AAA batteries when the low battery indicator appears on the display. Ensure the device is powered off before replacing batteries.
- Opbevaring: Store the DMG-4B in its protective carrying bag in a dry place, away from direct sunlight and extreme temperatures, when not in use.
- Sensorpleje: Avoid dropping the device or subjecting it to strong impacts to protect the high-precision sensor.
9. Fejlfinding
- Enheden tænder ikke: Kontroller batteriinstallationen, og sørg for, at batterierne ikke er afladede. Udskift om nødvendigt.
- Problemer med Bluetooth-forbindelse: Ensure Bluetooth is enabled on both the device and your smartphone. Restart both devices and try reconnecting. Make sure the app has necessary permissions.
- Unøjagtige aflæsninger: Perform a data zero-calibration (long press Clear button). Ensure the correct refrigerant type is selected. Check for leaks in the system or connections.
- Skærmen virker ikke: Kontroller batteriniveauet. Hvis problemet fortsætter efter udskiftning af batteriet, skal du kontakte support.
10. Brugertips
- Always ensure the latest version of the mobile app is installed for optimal performance and access to new features.
- Utilize the app's data recording feature for detailed analysis and record-keeping of system performance over time.
- Familiarize yourself with the various measurement modes available through the app to maximize the utility of your gauge.
11. Garanti og support
For warranty information, technical support, or service inquiries, please refer to the official Elitech webwebstedet eller kontakt deres kundeserviceafdeling. Behold din købskvittering som købsbevis.
