CMTOOL MD-12

CMTOOL Digital HVAC Manifold Gauge Set

Model: MD-12

1. Wprowadzenie

The CMTOOL Digital HVAC Manifold Gauge Set is designed for the installation, testing, and maintenance of refrigeration equipment such as air conditioners, refrigerators, and cold storage units. This manual provides essential information for safe and effective operation.

1.1 Zawartość opakowania

  • 1 x Digital Manifold Gauge Unit
  • 3 x Standard Test Hoses (1.5m)
  • 2 x Temperature Clamps
  • 1 x Portable Toolbox
  • 1 x Instrukcja obsługi
Contents of the CMTOOL Digital HVAC Manifold Gauge Set, including the main unit, hoses, temperature clampi etui.

Image: Components included in the CMTOOL Digital HVAC Manifold Gauge Set.

2. Informacje dotyczące bezpieczeństwa

Aby zapobiec obrażeniom ciała lub uszkodzeniu sprzętu, należy zawsze przestrzegać następujących środków ostrożności:

  • Podczas pracy z czynnikami chłodniczymi należy nosić odpowiedni sprzęt ochrony osobistej (PPE), w tym okulary ochronne i rękawice.
  • Podczas pracy z czynnikami chłodniczymi należy zapewnić odpowiednią wentylację.
  • Do not exceed the maximum operating pressure of the hoses (600 PSI / 4.13 MPa). The limit pressure is 3000 PSI.
  • Verify that all connections are secure before applying pressure.
  • Avoid direct contact with refrigerants, as they can cause frostbite.
  • Trzymaj urządzenie z dala od wody i ekstremalnych temperatur.
  • Ensure the temperature sensor clips are properly connected for accurate readings.

3. Funkcje produktu

The CMTOOL Digital HVAC Manifold Gauge Set offers several advanced features for HVAC professionals:

  • Dual Pressure and Dual Temperature Measurement: Simultaneously measures two pressures (gauge pressure) and two temperatures.
  • Automatic Unit Conversion: Supports automatic conversion for pressure (kPa, MPa, Psi, Bar, InHg) and temperature (Celsius/Fahrenheit).
  • High-Precision Data Unit: Features a built-in 32-bit digital processing unit and high-precision data acquisition for stable and accurate readings.
  • Refrigerant Database: Contains a built-in database of 89 refrigerants, allowing for direct reading of pressure-evaporation temperature, superheat, and subcooling.
  • Vacuum Measurement: Tests the percentage of vacuum.
  • Próba szczelności pod ciśnieniem: Calculates pressure difference over time to detect refrigerant leaks.
  • Trwała konstrukcja: Made with high-strength engineering plastics and flexible non-slip silicone for durability and comfortable handling.
  • Viewable Window and LCD Display: Allows direct observation of refrigerant charging status and features a 7.5CM×4CM LCD with backlight for clear data reading.
Diagram illustrating the key features of the digital manifold gauge set, including dual pressure and temperature test, superheat and subcooling calculation, pressure leakage test, vacuum pump operation, 32-bit high-precision data unit, support for 89 refrigerants, durable design, and LCD display.

Obraz: Ponadview of the digital manifold gauge set's key features.

List of 89 supported refrigerants, categorized by type, including R11, R134A, R22, R404A, R410A, and many others.

Image: Comprehensive list of 89 refrigerants supported by the device.

4. Konfiguracja

4.1 Identyfikacja komponentów

Diagram showing the components of the digital manifold gauge, including LCD display, function buttons, valves, and inlets, with dimensions.

Image: Labeled diagram of the digital manifold gauge components and dimensions.

  1. Clamp-on Temperature Probe Socket
  2. Wyświetlacz LCD
  3. Przycisk funkcyjny
  4. Przycisk Uruchom/Zatrzymaj
  5. R+/R- Refrigerant Type Selection Buttons
  6. Przycisk jednostki
  7. Przycisk Zero
  8. Podświetlany przycisk
  9. Przycisk ° C / ° F
  10. Przycisk zasilania
  11. Zawór niskiego ciśnienia
  12. Refrigerant Observation Window
  13. 1/4 inch Low Pressure Inlet
  14. Zawór wysokiego ciśnienia
  15. Zawór upustowy ciśnienia
  16. 1/4 inch High Pressure Inlet
  17. Refrigerant Inlet / Vacuum Pump Inlet

4.2 Connecting Hoses and Clamps

  1. Connect the appropriate test hoses to the low pressure inlet (14), high pressure inlet (17), and refrigerant/vacuum pump inlet (18) on the manifold gauge.
  2. Attach the other ends of the hoses to the service ports of the HVAC system.
  3. Plug the temperature clamps into the Clamp-on Temperature Probe Sockets (1).
  4. Securely attach the temperature clamps to the refrigerant pipes to measure pipe surface temperature.

5. Instrukcja obsługi

5.1 Włączanie/wyłączanie i podświetlenie

  • Naciśnij przycisk zasilania (11), aby włączyć lub wyłączyć urządzenie.
  • Press the Backlit Button (9) to activate or deactivate the LCD backlight for improved visibility in low-light conditions.

5.2 Selecting Refrigerant Type

  • Use the R+/R- Refrigerant Type Selection Buttons (6) to scroll through the built-in refrigerant database and select the refrigerant being used (e.g., R134A, R410A).

5.3 Pomiar ciśnienia i temperatury

The device displays dual pressure and dual temperature readings simultaneously.

  • Ensure hoses and temperature clampsą prawidłowo podłączone.
  • The LCD Display (2) will show T1 and T2 temperatures, along with corresponding pressures.
  • Press the Unit Button (7) to cycle through different pressure units (kPa, MPa, Psi, Bar, InHg).
  • Press the °C/°F Button (10) to switch between Celsius and Fahrenheit temperature units.
Close-up of the digital manifold gauge display showing dual temperature and pressure readings in kPa, with an overlay explaining the pressure test units.

Image: Dual pressure and temperature measurement display.

5.4 Superheat and Subcooling Calculation

The gauge automatically calculates superheat and subcooling based on the selected refrigerant and measured values.

  • After selecting the refrigerant, the display will show the calculated superheat (SH) and subcooling (SC) values.
Digital manifold gauge display showing refrigerant type, pressure, temperature, and calculated superheat and subcooling values.

Image: Display showing refrigerant data, superheat, and subcooling.

5.5 Próba szczelności pod ciśnieniem

To perform a pressure leak test:

  1. Connect the gauge to the system and pressurize it.
  2. Press the Function Button (3) to enter the leak test mode.
  3. The gauge will record the initial pressure and continuously monitor for changes.
  4. The display will show the leak time (HH:MM) and the pressure difference (ΔP) between the initial and instantaneous pressure values.
Digital manifold gauge display showing the pressure leakage test interface, with leak time, initial pressure value, and instantaneous pressure value highlighted.

Image: Pressure leak test display.

5.6 Pomiar próżni

The device can measure the percentage of vacuum.

  • Connect the gauge to the system and initiate the vacuum process.
  • The display will show the vacuum percentage.
A technician using the CMTOOL digital manifold gauge to service an automotive air conditioning system.

Image: Technician performing HVAC system service with the gauge.

6. Konserwacja

6.1 Czyszczenie

  • Wipe the gauge unit with a soft, damp ściereczka. Nie należy używać środków czyszczących o właściwościach ściernych ani rozpuszczalników.
  • Ensure the temperature clamps and hoses are clean and free of debris after each use.

6.2 Przechowywanie

  • Store the manifold gauge set in its portable toolbox to protect it from dust and physical damage.
  • Przechowuj urządzenie w suchym miejscu, z dala od bezpośredniego światła słonecznego i ekstremalnych temperatur.

7. Rozwiązywanie Problemów

7.1 Niedokładne odczyty temperatury

  • Wydanie: Temperature readings appear incorrect or unstable.
  • Rozwiązanie: Ensure the temperature sensor clips are properly connected to the probe sockets and securely attached to the refrigerant pipes. A poor connection can lead to inaccurate values.

7.2 No Display or Device Not Powering On

  • Wydanie: The LCD display is blank or the device does not turn on.
  • Rozwiązanie: Check the battery compartment for proper battery installation and charge level. Replace batteries if necessary.

7.3 Pressure Readings are Unstable or Incorrect

  • Wydanie: Pressure readings fluctuate excessively or seem inaccurate.
  • Rozwiązanie: Verify all hose connections are tight and free of leaks. Ensure the correct refrigerant type is selected in the device settings.

8. Specyfikacje

FunkcjaSzczegół
Numer modeluMD-12
Wymiary produktu13.98 x 12.71 x 4.61 cala
Waga przedmiotu6.6 funtów
TworzywoHigh-strength engineering plastics, flexible non-slip silicone
Obsługiwane czynniki chłodnicze89 types (e.g., R11, R12, R22, R134A, R404A, R410A, 1234YF)
Ciśnienie robocze wężaMax 600 PSI (4.13 MPa)
Hose Limit Pressure3000 PSI
Wyświetlacz7.5CM×4CM LCD with backlight
Jednostka przetwarzania danych32-bit digital

9. Gwarancja i wsparcie

CMTOOL products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official CMTOOL webStrona. Zachowaj dowód zakupu na wypadek roszczeń gwarancyjnych.

© 2025 CMTOOL. All rights reserved.

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