Introduction
This document serves as the user manual for the AUTOOL LM120+ Digital Manifold Gauge. It provides essential information for the installation, testing, and maintenance of refrigeration equipment such as air conditioners and cold storage units. The instrument features double pressure testing, dual temperature testing, digital readout, multi-unit switching, multi-mode functions, and a built-in refrigerant database.
Designed for professional technicians and maintenance workers, the AUTOOL LM120+ offers high-strength engineering plastics and a flexible non-slip silicone design for durability and comfortable handling. It is equipped with a 32-bit digital processing unit, high-precision data acquisition, and a large LCD display with backlight for clear readability and convenient operation.
Key Features and Functions
- Measures double pressure (gauge pressure) and dual temperature simultaneously.
- Supports automatic multi-unit pressure conversion and Celsius/Fahrenheit temperature conversion.
- Includes a database of 89 refrigerants for pressure-evaporation temperature calculations.
- Capable of calculating subcooling and superheat for direct reading of operating process data.
- Features vacuum measurement, pressure leak measurement, and leak time speed recording.
- Equipped with long-life valve switches and a 1/4-inch standard interface for versatility.
Safety Precautions
This manual includes important warnings for safe operation and maintenance. Users should adhere to the guidelines to prevent instrument damage and ensure personal safety. Key safety points include:
- Always use appropriate protective equipment during testing.
- Ensure the instrument is used in a well-ventilated environment.
- Do not modify the instrument's internal circuitry.
- Verify that the pressure ratings of hoses and tested equipment are compatible with the instrument's range.
- Avoid operating or storing the instrument in extreme temperatures, high humidity, or near flammable, explosive, or strong electromagnetic fields.
Product Specifications
The AUTOOL LM120+ supports various pressure units including Kpa, Mpa, bar, inHg, and PSI. Its pressure test range is from 0 Kpa to 6000 Kpa with a resolution of 1 Kpa. The accuracy for pressure testing is +/- 0.5%(FS)+ 5dgt, with an overload limit of 10000 Kpa. For temperature, the test range is -40°C to 150°C (-40°F to 302°F).
Contact and Support
For more information or support, please visit the official AUTOOL website at www.autooltech.com or contact them via email at aftersale@autooltech.com.
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