Manuals+

AUTOOL LM130

AUTOOL LM130 Smart Digital Manifold Kit

User Instruction Manual

1. Introduction

The AUTOOL LM130 Smart Digital Manifold Kit is an intelligent refrigerant gauge designed for automotive air conditioning systems. It is primarily used to accurately detect the pressure values of refrigerants at various stages within the system. This device assists equipment operation and maintenance personnel in gaining a clear understanding of the system's operating status, ensuring proper functioning and maintenance of the air conditioning system.

The LM130 features a robust design with a high-precision sensor, multiple operating modes, and a clear LCD display, making it an essential tool for automotive technicians.

2. Key Features

  • High-Precision Sensor: Integrated high-precision pressure sensor with built-in temperature compensation ensures accurate readings regardless of temperature fluctuations.
  • Multiple Operating Modes: Supports Refrigeration Mode, Evacuation Mode, and Pressure Leak Test Mode for comprehensive system analysis.
  • LCD HD Display: A 3-inch backlit LCD screen provides a clear display, adapting to various scenarios for easy operation in both natural daylight and dimly lit conditions.
  • Versatile Unit Support: Supports multiple pressure units (psi, Bar, Mpa) and temperature units (°C, °F).
  • Multiple Refrigerant Types: Compatible with a wide range of refrigerants including R12, R410A, R407C, R404A, R22, R134A, and R502.
  • Convenient Design: Features a foldable hook for easy hanging and an observation sight window for monitoring refrigerant flow.
AUTOOL LM130 Smart Digital Manifold Kit in use on a car engine, highlighting its features.

Image: AUTOOL LM130 in use, showcasing its features.

Diagram illustrating the high-precision pressure sensor and its accuracy specifications.

Image: High-precision sensor details and accuracy.

Comparison of the LM130's LCD HD display in daylight and dimly lit conditions.

Image: LCD HD Display visibility in different lighting.

3. Product Components and Controls

Labeled diagram of the AUTOOL LM130 unit with its components and controls.

Image: Labeled diagram of the LM130 unit.

3.1. Unit Overview

The LM130 Smart Digital Manifold Kit includes the main unit and essential accessories:

  • AUTOOL LM130 Main Unit
  • Clamp Temperature Probe
  • User Manual
  • Storage Box
AUTOOL LM130 Smart Digital Manifold Kit with its accessories: main unit, box, clamp, and manual.

Image: AUTOOL LM130 and included accessories.

3.2. Control Interface

Refer to the labeled diagram above for component identification:

  1. A: Multi-Function Interface: Main display area for readings and settings.
  2. B: Display Screen: High-definition LCD for clear data visualization.
  3. C: Play/Pause/Restart Button (▶/▲): Press to start/pause measurement or restart measurement.
  4. D: Sound/Scroll Down Button (🔊/▼): Press to control sound on/off; in setting mode, press to scroll downward.
  5. E: Settings Key (⚙): Press to enter settings mode for refrigerant selection, temperature unit, pressure unit, vacuum unit, and auto power-off settings.
  6. F: Measurement Mode/Zero Pressure Button (🔍/P=0): Press to select the measurement mode; long press to zero the pressure.
  7. G: Power On/Off/Backlight Button (⚿/💡): Press to power on the unit; long press for 2 seconds to power off; press to control backlight.
  8. H: Refilling Hose Brass Connector: Connection point for refilling hoses.
  9. I: Observation Sight Window: Allows visual inspection of refrigerant flow.
  10. J: Refilling Hose Joint Evacuation Port: Port for evacuation processes.
  11. K: Rotary Knob: Used for adjusting settings and selecting options.
  12. M: Foldable Hook: For convenient hanging of the unit during use.
Image showing unique design details of the LM130: Multi-Button Layout, Foldable Hook, Observation Sight Window, and Silicone Sides.

Image: Unique design details of the LM130.

4. Technical Specifications

Table of product specifications for the AUTOOL LM130.

Image: Detailed product specifications.

AttributeValue
Pressure Unitpsi, Bar, Mpa
Temperature Unit°C, °F
Vacuum UnitTorr, mbar
Pressure Range0~870psi, 0~60bar(rel), 0~6Mpa
Temperature Range-55~125°C, -67~257°F
Vacuum Range (Rel)-14.7-0psi, -1~0bar
Pressure Resolution0.1psi, 0.01bar, 0.005MPa
Temperature Resolution0.1°C, 0.1°F
Pressure AccuracyWithin ±0.5% of the full range
Temperature Accuracy±0.5°C (±1 digit), ±0.9°F (±1 digit)
Vacuum AccuracyWithin ±0.5% of the full range
Overload942.5psi, 65bar, 6.5Mpa
Refrigerants AvailableR12, R410A, R407C, R404A, R22, R134A, R502
Operating Voltage6V (4 x 1.5V batteries)

5. Setup Instructions

  1. Install Batteries: Open the battery compartment on the back of the unit and insert 4 x 1.5V batteries, ensuring correct polarity.
  2. Connect Hoses: Connect the appropriate refrigerant hoses to the brass connectors (H and J) on the LM130 unit. Ensure connections are tight to prevent leaks.
  3. Connect to System: Attach the other ends of the refrigerant hoses to the high-pressure and low-pressure ports of the automotive air conditioning system.
  4. Power On: Press the Power On/Off button (G) to turn on the device.
  5. Initial Settings: Use the Settings Key (E) and Rotary Knob (K) to select the desired refrigerant type, pressure unit, temperature unit, and vacuum unit.

Video: Product demonstration showing setup and various modes of operation.

This video demonstrates the physical connection of the manifold kit to an AC system, including attaching hoses and the clamp temperature probe, and navigating through different modes.

6. Operating Modes

6.1. Refrigeration Mode

This mode provides real-time measurement of pressure and temperature data within refrigeration systems. It displays key parameters to assess system performance.

  1. Ensure the LM130 is connected to the system.
  2. Press the Measurement Mode button (F) until 'Refrigeration Mode' is displayed.
  3. The screen will show:
    • Refrigerant Type: The selected refrigerant (e.g., R134A).
    • EV (Evaporation Temp): Evaporation temperature.
    • CO (Condensation Temp): Condensation temperature.
    • T (Actual Pipe Temp): Measured pipe temperature (requires clamp temperature probe).
    • Current P (Current Pressure): Real-time pressure reading in the selected unit.
  4. Press the Play/Pause/Restart button (C) to start or pause the measurement.
Screen display for Refrigeration Mode showing Refrigerant Type, Evaporation Temp (EV), Condensation Temp (CO), Actual Pipe Temp (T), and Current Pressure (Current P).

Image: Refrigeration Mode display with parameter labels.

6.2. Evacuation Mode

Use this mode to measure pressure during the evacuation process of a refrigeration system and assess the current vacuum state.

  1. Ensure the LM130 is connected to the system and a vacuum pump.
  2. Press the Measurement Mode button (F) until 'Evacuation Mode' is displayed.
  3. The screen will show:
    • Evacuation: Indicates the mode.
    • EV (H2O Evaporation Temp): H2O evaporation temperature.
    • Tamb (Ambient Temp): Ambient temperature.
    • Current P (Current Pressure): Real-time pressure reading in the selected unit (e.g., mbar).
    • TIME (Measurement Duration): Duration of the evacuation process.
    • ΔT (Delta T): Temperature difference.
    • 000000: Indicates if vacuum is not achieved within range.
    • RUAT: Activate External Vacuum Probe (if applicable).
  4. Press the Play/Pause/Restart button (C) to start or pause the measurement.
Screen display for Evacuation Mode with labels for Evacuation, H2O Evaporation Temp (EV), Ambient Temp (Tamb), Current Pressure (Current P), Measurement Duration (TIME), Delta T (ΔT), Vacuum Not Achieved Within Range (000000), and Activate External Vacuum Probe (RUAT).

Image: Evacuation Mode display with parameter labels.

6.3. Pressure Leak Test Mode

This mode is used to test the leak tightness and sealing integrity of the refrigeration system.

  1. Ensure the LM130 is connected to the system.
  2. Press the Measurement Mode button (F) until 'Pressure Leak Test' is displayed.
  3. The screen will show:
    • StartP (Starting Pressure): The pressure at the beginning of the test.
    • Current P (Real-time Pressure): The current pressure reading.
    • TIME (Measurement Time): Duration of the leak test.
    • ΔP (Pressure Difference): The difference between StartP and Current P, indicating a leak if non-zero.
  4. Press the Play/Pause/Restart button (C) to start or pause the test. Monitor the ΔP value over time.
Screen display for Pressure Leak Test with labels for Starting Pressure (StartP), Real-time Pressure (Current P), Measurement Time (TIME), and Pressure Difference (ΔP).

Image: Pressure Leak Test display with parameter labels.

7. Maintenance

  • Cleaning: Wipe the unit with a soft, damp cloth. Do not use abrasive cleaners or solvents.
  • Storage: Store the LM130 in its protective case in a dry, cool place when not in use.
  • Battery Replacement: Replace batteries promptly when the low battery indicator appears on the display to ensure accurate readings and prevent data loss.
  • Sensor Care: Avoid dropping or subjecting the unit to strong impacts, as this can affect sensor accuracy.

8. Troubleshooting

No Display/Unit Not Turning On:
Check if the batteries are correctly installed and have sufficient charge. Replace if necessary.
Inaccurate Readings:
Ensure all hose connections are tight and free of leaks. Verify that the correct refrigerant type and units are selected in the settings. Perform a zero-pressure calibration if needed (long press button F).
Vacuum Not Achieved (Evacuation Mode):
Check for leaks in the system or connections. Ensure the vacuum pump is functioning correctly.
Pressure Leak Test Shows Pressure Drop:
This indicates a leak in the system. Thoroughly inspect all connections, hoses, and system components for signs of leakage.

9. User Tips

  • Always ensure the system is depressurized before connecting or disconnecting hoses to prevent injury or refrigerant release.
  • Regularly check the battery level, especially before starting a critical measurement.
  • Utilize the foldable hook (M) to keep the unit securely positioned and prevent accidental drops during operation.
  • Familiarize yourself with the different refrigerant types and select the correct one for your application to ensure accurate measurements.

10. Warranty and Support

The AUTOOL LM130 Smart Digital Manifold Kit comes with a 3-year warranty from AUTOOL Authorized Store. For any technical assistance, warranty claims, or product inquiries, please contact AUTOOL Official Store customer support.

Image indicating a 3-year warranty for AUTOOL products.

Image: AUTOOL 3-Year Warranty information.