1. How AUTOOL LM150 Digital Hvac Gauges products work
The AUTOOL LM150 Digital HVAC Gauge uses a built-in pressure sensor to detect the vacuum pressure within the system and convert the pressure signal into an electrical signal. The microprocessor processes and calibrates the signal, then displays the vacuum level as a numerical value on the screen. It supports intelligent functions such as data storage and multi-unit switching, making it convenient for quick testing of the air conditioning system’s sealing and vacuum effect.
2.AUTOOL LM150 Refrigerant Identifier Features
High-Temperature Detection: The minimum pressure when the refrigerant transitions from gas to liquid can detect the highest temperature during the gas-to-liquid phase change. The maximum pressure when the refrigerant changes from liquid to gas can detect the lowest temperature during the liquid-to-gas phase change.
Multidimensional Detection: Measures the pressure and temperature of the refrigerant in the high and low-pressure pipelines of the air conditioning system (requires connection to a test clamp).
Pressure Hold Leak Detection: Calculates the pressure difference between the initial test pressure and the secondary test pressure to determine if there is any refrigerant leakage. The data is extensive and stable, with automatic conversion between multiple pressure/temperature units (kPa, MPa, bar, inHg, PSI, Celsius, Fahrenheit).
Evaporating Pressure and Temperature Measurement: The lower the evaporating pressure, the lower the evaporating temperature, which results in higher refrigeration cycle efficiency and greater cooling capacity.
Multiple Testing Modes: The AUTOOL LM150 refrigerant manifold gauge can measure dual pressures (high and low pressures) and dual temperatures (high and low pressure pipeline temperatures, requiring test clamp connection). It also measures the vacuum level percentage. The device includes features such as pressure leak measurement, leak time and speed recording, multi-unit pressure conversion, and temperature conversion between Celsius and Fahrenheit, all designed to meet a variety of user needs.
3.AUTOOL LM150 digital manifold gauges operating procedure
Check the device and air conditioning system’s condition to ensure all connections are secure and there are no leaks.
Start the vacuum gauge and select the appropriate vacuum unit.
Connect the vacuum gauge to the system interface and start the vacuum pump.
Monitor the vacuum level in real-time to ensure it reaches the standard vacuum level.
Stop the vacuum process and observe the data stability to assess the system’s sealing integrity.
Once completed, turn off the device, disconnect and store it properly.
