Introdución
The Elitech PG-30Pro Digital Pressure Gauge is designed for precise real-time pressure measurement in various systems, including pipeline and refrigeration applications. It features a clear backlight display, automatic shutdown, low battery indication, and an over-pressure warning light for enhanced safety and usability. Its robust design and long battery life make it a reliable tool for professionals.
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your PG-30Pro Digital Pressure Gauge. Please read it thoroughly before use.
Características do produto
- Pantalla de retroiluminación: Garante unha visibilidade clara das lecturas en diversas condicións de iluminación.
- Max/Min Value Display and Reset: Records maximum and minimum pressure values, with an option to reset for new data collection.
- Función de cero: Allows for calibration to correct any deviation at the zero point.
- Ampla compatibilidade de refrixerantes: Supports over 90 common refrigerants, making it versatile for various AC and refrigeration systems.
- Auto Shut-Off Setting: Apaga a batería automaticamente despois dun período de inactividade.
- Adjustable Temperature and Pressure Units: Users can select preferred units for both temperature and pressure measurements.
- Indicador de batería baixa: Displays "LOB" when battery power is low.
- Over-Pressure Warning: Alerts the user to potentially damaging pressure levels.

Image: Elitech PG-30Pro Digital Pressure Gauge showcasing its main features including backlight, Max/Min display, zeroing function, refrigerant compatibility, auto shut-off, and adjustable units.
Configuración
1. Instalación da batería
- Localiza a tapa do compartimento da batería na parte traseira do dispositivo.
- Open the cover and insert three (3) AAA batteries, ensuring correct polarity (+/-).
- Pecha a tapa do compartimento da batería de forma segura.
2. Connecting the Gauge
- The PG-30Pro is equipped with a standard 1/8-inch NPT fitting.
- Ensure the system you are connecting to is compatible with this fitting size.
- Carefully thread the gauge onto the system's pressure port. Do not overtighten.
- Verify a secure, leak-free connection before proceeding with measurements.

Image: The Elitech PG-30Pro Digital Pressure Gauge illustrating its 1/8-inch NPT fitting and overall dimensions for connection reference.
Instrucións de funcionamento
1. Acendido/apagado
Preme o POTENCIA button (usually marked with a circle and vertical line) to turn the device on. Press and hold the POTENCIA botón para apagalo.
2. Selección da unidade
Preme o SET button to cycle through available pressure units (MPa, kPa, bar, psi, kg/cm²) and temperature units (°C, °F). Select the desired units for your measurement.

Image: The Elitech PG-30Pro Digital Pressure Gauge showing its display with adjustable temperature and pressure units, such as psi and °C/°F.

Image: A close-up of the Elitech PG-30Pro Digital Pressure Gauge's LCD display with its blue backlight activated, showing pressure and temperature readings.
3. Zeroing Function
Before taking a measurement, especially in a new environment or after a long period of storage, it is recommended to zero the gauge. With no pressure applied, press the CERO button to reset the reading to zero. This corrects any potential deviation and ensures accurate measurements.
4. Max/Min Value Recording
The gauge automatically records the maximum and minimum pressure values during operation. To view these values, press the SET button repeatedly until "MAX" or "MIN" appears on the display. To clear these recorded values and start a new recording cycle, press and hold the CERO botón mentres viewing the MAX/MIN display.

Image: The Elitech PG-30Pro Digital Pressure Gauge highlighting the Power and Zero buttons, used for Max/Min value display and reset.
5. Refrigerant Selection (PT Table)
The PG-30Pro has a built-in pressure-temperature (PT) comparison table for over 90 common refrigerants. This allows for convenient reference during HVAC and refrigeration system work. Consult the device's specific menu or accompanying documentation for how to access and utilize this feature.

Image: The Elitech PG-30Pro Digital Pressure Gauge demonstrating its compatibility with a wide range of refrigerants, including R12, R22, R134a, R401A, and others.
Mantemento
- Limpeza: Limpe o dispositivo cun suave, damp pano. Non use produtos de limpeza ou disolventes abrasivos.
- Almacenamento: Store the gauge in a dry, cool place away from direct sunlight and extreme temperatures. If storing for extended periods, remove the batteries to prevent leakage.
- Substitución da batería: Replace batteries when the "LOB" indicator appears on the display. Ensure to use three (3) new AAA batteries.
- Inspección: Regularly inspect the pressure port and fitting for any signs of damage or wear. Replace if necessary to ensure accurate and safe operation.
Resolución de problemas
| Problema | Causa posible | Solución |
|---|---|---|
| O dispositivo non se acende. | Baterías gastadas ou instaladas incorrectamente. | Comprobe a polaridade das pilas. Substitúaas por pilas AAA novas. |
| Lecturas inexactas. | Gauge not zeroed; faulty connection; sensor issue. | Perform zeroing function. Check for leaks at the connection. If problem persists, contact support. |
| "LOB" displayed. | Batería baixa. | Substitúa as pilas inmediatamente. |
| A pantalla está escura ou parpadea. | Low battery power; environmental conditions. | Replace batteries. Ensure operating within specified temperature range. |
Especificacións
| Parámetro | Valor |
|---|---|
| Modelo | PG-30Pro |
| Rango de medición de presión | -0.100 to 5.515 MPa (0 to 800 psi) |
| Temperatura de funcionamento | 10 °C a 60 °C (50 °F a 140 °F) |
| Humidade de funcionamento | 35% a 85% RH |
| Resolución | 0.001 MPa, 0.1 psi |
| Precisión | ±0.5% FS (Full Scale) |
| Unidades de temperatura | ° C / ° F |
| Duración da batería | Ata 1 ano |
| Fonte de alimentación | 3 pilas AAA |
| Sampling Período | 1 segundo |
| Mostrar | 1.9 x 1 inch LCD with Blue Backlight |
| Unidades de medida | MPa, kPa, bar, psi, kg/cm², cmHg |
| Encaixe | NPT de 1/8 polgadas |
| Dimensións do produto (L x W x H) | 45 x 45 x 197 mm (1.77 x 1.77 x 7.76 polgadas) |
| Peso do produto | 248 g (8.78 onzas) |
| Material | Plástico |
| Compatibilidade de refrixerantes | Over 90 types |

Imaxe: Examples of the Elitech PG-30Pro Digital Pressure Gauge in use across various applications, including automotive AC maintenance, residential AC installation, cold storage temperature control, commercial refrigeration inspection, heat pump system pressure testing, and refrigerant recovery and charging.
Garantía e Soporte
For warranty information, technical support, or service inquiries, please contact Elitech customer service. Refer to the product packaging or Elitech's official websitio web para obter os datos de contacto máis actuais.
Websitio: www.elitech.com
Please have your product model (PG-30Pro) and purchase date available when contacting support.





