1. Einleitung
This manual provides detailed instructions for the proper use and maintenance of the Elitech PG-30Pro Digital Pressure Gauge. This device is designed for accurate pressure measurement in refrigeration and HVAC systems. Please read this manual thoroughly before operation to ensure correct usage and to prevent damage.
Figure 1: Elitech PG-30Pro Digital Pressure Gauge. This image displays the front view of the digital pressure gauge, featuring a blue face with a clear LCD screen, power button, 'SET' button, and 'ZERO' button. The 1/8'' NPT connection is visible at the bottom.
2. Produktmerkmale
- Stable and Reliable Sensor: Utilizes a temperature-compensated pressure sensor, ensuring temperature drift does not exceed ±0.04%FS/℃.
- LCD Screen & Blue Backlight Display: Features a partitioned display for various measurements, providing direct readings for all parameters. The blue backlight enhances visibility in low-light conditions.
- Various Refrigerants Options: Includes a built-in PT (Pressure-Temperature) comparison table for 87 common refrigerants, facilitating convenient selection.
- Nullfunktion: Allows for zeroing out any deviation at the zero point to correct the system and ensure accurate measurements.
- Overload Warning Indications: Displays 'ALARM' on the screen for overload conditions. If the overload is excessively high, 'ALARM' and the backlight will flash simultaneously.
- Max/Min Value Display and Reset: Records maximum and minimum pressure values, with an option to reset these values.
- Auto Shut-Off Setting: Features an automatic shut-off function to conserve battery power during periods of inactivity.
- Adjustable Temperature and Pressure Units: Supports various temperature units (°C / °F) and pressure units (psi, kg/cm², cmHg, bar, kPa, Mpa, kg/cm²).
- 1/8-inch NPT Fitting: Equipped with a standard 1/8-inch NPT fitting for broad compatibility with various systems.
Abbildung 2: Überview of Elitech PG-30Pro features. This graphic highlights key functionalities such as backlight display, Max/Min value, zeroing, refrigerant support, auto shut-off, and adjustable units.
Figure 3: Refrigerant compatibility of the Elitech PG-30Pro. This image illustrates the gauge's ability to work with over 90 types of refrigerants, including R12, R22, R134a, R290, R401A, R403A, R740, R744, R601, R143A, R32, R21, and R1234yf.
3. Einrichtung
3.1 Einlegen der Batterie
- Suchen Sie die Abdeckung des Batteriefachs auf der Rückseite des Geräts.
- Remove the cover by twisting or sliding it according to the markings.
- Legen Sie zwei (2) AAA-Batterien ein und achten Sie dabei auf die richtige Polarität (+/-), wie im Batteriefach angegeben.
- Bringen Sie den Batteriefachdeckel wieder fest an.
3.2 Erstverbindung
- Ensure the system to which the gauge will be connected is depressurized or isolated.
- Carefully thread the 1/8'' NPT fitting of the digital pressure gauge onto the appropriate port of your HVAC or refrigeration system.
- Tighten the connection firmly by hand, then use a wrench for a final snug turn to prevent leaks. Do not overtighten.
Figure 4: Dimensions and 1/8-inch NPT fitting. This image shows the physical dimensions of the gauge and highlights the 1/8-inch NPT threaded connection for system integration.
4. Bedienungsanleitung
4.1 Ein-/Ausschalten
- Um das Gerät einzuschalten, drücken Sie die Taste Leistung button (⏻) located at the top of the gauge.
- Um das Gerät auszuschalten, halten Sie die Taste gedrückt Leistung button (⏻) for approximately 3 seconds until the display turns off.
4.2 Nullfunktion
The zero function is used to correct any minor deviations at the zero pressure point before taking a measurement.
- Ensure the gauge is disconnected from any pressure source and is at ambient atmospheric pressure.
- Drücken Sie die NULL button (▶) located at the bottom right of the gauge. The display should show 0.000 psi (or selected pressure unit).
Figure 5: Zeroing function button. This image highlights the 'ZERO' button on the gauge, indicating its use for resetting the pressure reading to zero.
4.3 Changing Units (Pressure/Temperature)
To cycle through available pressure and temperature units:
- Drücken Sie die SATZ button (◀) to enter the unit selection mode.
- Verwenden Sie die NULL button (▶) to cycle through the available pressure units (psi, kg/cm², cmHg, bar, kPa, Mpa, kg/cm²).
- Drücken Sie die SATZ button (◀) again to switch to temperature unit selection.
- Verwenden Sie die NULL button (▶) to select between °C and °F.
- Drücken Sie die SATZ button (◀) to confirm your selection and exit unit setting mode.
Figure 6: Adjustable temperature and pressure units. This graphic illustrates the various units available for both temperature (°C / °F) and pressure (psi, kg/cm², cmHg, bar, kPa, Mpa, kg/cm²).
4.4 Selecting Refrigerants
The gauge has a built-in database of refrigerants for PT comparison.
- While in normal measurement mode, press and hold the SATZ button (◀) to enter refrigerant selection mode.
- Verwenden Sie die NULL button (▶) to scroll through the list of available refrigerants.
- Once the desired refrigerant is displayed, press the SATZ button (◀) to confirm your selection and return to measurement mode.
4.5 Messwerte ablesen
Once connected and powered on, the gauge will display the current pressure and corresponding saturation temperature for the selected refrigerant on its LCD screen.
4.6 Max/Min Value Display and Reset
Zu view the recorded maximum and minimum pressure values:
- Drücken Sie kurz die Leistung button (⏻) during operation to cycle through current, maximum, and minimum pressure readings.
- To reset the recorded Max/Min values, press and hold the NULL button (▶) while the Max/Min values are displayed.
Figure 7: Max/Min value display and reset. This image illustrates how the power button is used to cycle through readings and the zero button to reset recorded maximum and minimum values.
4.7 Einstellung für automatische Abschaltung
The gauge features an adjustable auto shut-off time to conserve battery life.
- To adjust the auto shut-off time, press and hold the SATZ button (◀) until the auto shut-off setting appears.
- Verwenden Sie die NULL button (▶) to cycle through the available time options (e.g., 10 minutes, 20 minutes, Off).
- Drücken Sie die SATZ button (◀) to confirm your selection.
Figure 8: Auto shut-off setting. This image highlights the 'SET' button, used for configuring the automatic power-off duration to save battery life.
5. Wartung
5.1 Reinigung
- Wipe the exterior of the gauge with a soft, damp Tuch. Keine Scheuer- oder Lösungsmittel verwenden.
- Ensure no moisture enters the sensor port or battery compartment.
5.2 Batteriewechsel
- Tauschen Sie die Batterien aus, sobald die Anzeige für niedrigen Batteriestand erscheint.
- Befolgen Sie die in Abschnitt 3.1 beschriebenen Schritte zur Installation der Batterie.
- Entsorgen Sie gebrauchte Batterien gemäß den örtlichen Vorschriften.
5.3 Speicherung
- Store the gauge in a dry, cool place away from direct sunlight and extreme temperatures.
- Bei längerer Lagerung sollten die Batterien entfernt werden, um ein Auslaufen zu verhindern.
6. Fehlerbehebung
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Das Messgerät lässt sich nicht einschalten. | Leere oder falsch eingelegte Batterien | Batterien austauschen und dabei auf die richtige Polarität achten. |
| Ungenaue Druckmessung | Gauge not zeroed; Sensor contamination; Incorrect unit selected | Perform zero function; Clean sensor port if accessible; Verify selected pressure unit. |
| Display shows 'ALARM' or flashes | Pressure overload | Immediately disconnect from pressure source. The gauge is operating beyond its specified range. |
| Hintergrundbeleuchtung funktioniert nicht | Low battery; Backlight setting off | Replace batteries; Check if backlight can be toggled (refer to operating instructions). |
7. Spezifikationen
| Spezifikation | Detail |
|---|---|
| Modellnummer | PG-30 |
| Druckbereich | -14.5 bis 500 PSI |
| Verbindungstyp | 1/8'' NPT |
| Temperaturdrift | ±0.04%FS/℃ |
| Kältemittelunterstützung | 87 types built-in |
| Stromquelle | 2 x AAA-Batterien |
| Material | Plastik |
| Produktabmessungen (L x B x H) | 6.3 x 4.72 x 8.27 Zoll |
| Artikelgewicht | 8.89 Unzen |
8. Garantie und Support
8.1 Garantieinformationen
The Elitech PG-30Pro Digital Pressure Gauge comes with a 12 Monate Garantie from the date of purchase, covering manufacturing defects and malfunctions under normal use. This warranty does not cover damage caused by misuse, accident, unauthorized modification, or improper installation.
8.2 Technischer Support
For technical assistance, troubleshooting, or warranty claims, please contact Elitech customer support. 24/7 US Technician Support is available via email and phone.
- E-Mail: Refer to product packaging or Elitech official webWebsite für Kontaktdaten.
- Telefon: Refer to product packaging or Elitech official webWebsite für Kontaktdaten.
