Inficon AST 300 PPM Refrigerant Leak Detector User Manual

Introduction

The Inficon AST300PPM is an advanced infrared leak detector designed for precise detection of R1234yf and R134a refrigerants. This device assists technicians in efficiently locating leak sources by providing a clear PPM (Parts Per Million) display of refrigerant concentration. Its robust design and intuitive interface make it an essential tool for automotive AC system maintenance and repair.

Image: The Inficon AST300PPM Refrigerant Leak Detector, showing its ergonomic design and digital display.

Features and Benefits

• SAE Standards Compliance: Meets all SAE standards for automotive AC leak detection, ensuring reliable performance.
• Multiple Operating Modes: Features PPM, automatic, and manual zero modes for versatile leak detection.
• Infrared Sensor Technology: Utilizes an infrared sensor to minimize false alarms often caused by common under-hood chemicals.
• Field-Replaceable Sensor: The infrared sensor can be easily replaced in the field, reducing downtime.
• Quick Charging Lithium-Ion Battery: Equipped with a fast-charging lithium-ion battery for extended use.
• Included Accessories: Comes with a UV inspection light and an R1234yf check gauge for comprehensive leak detection.

Image: Visual representation of the AST300PPM's key features, including SAE compliance, refrigerant detection capabilities, and automatic/manual zero modes.

What's in the Box

Upon unboxing your Inficon AST300PPM, please verify that all the following components are included:

• Inficon AST300PPM Leak Detector Unit
• Infrared Sensor (pre-installed or separate)
• Lithium-Ion Battery (pre-installed)
• AC Wall Charger
• DC Car Charger
• Extra-long Probe
• UV Inspection Light
• R1234yf Quick Check Gauge
• Earbuds
• Spare Filters
• Carry Case

Image: A comprehensive view of all items included with the AST300PPM, neatly arranged within its carry case, alongside the main unit and accessories.

Setup

1. Battery Installation and Charging

The AST300PPM comes with a pre-installed Lithium-Ion battery. Before first use, ensure the battery is fully charged. Connect the provided AC wall charger or DC car charger to the device's charging port. The charging indicator on the device will show the charging status. A full charge typically takes a few hours. The device can be operated while charging.

Image: Close-up view of the AST300PPM's lithium-ion battery compartment, highlighting the field-replaceable battery.

2. Initial Power On

Press and hold the Power button (refer to the Operating section for button locations) until the display illuminates. The device will perform a brief self-test. Once the main screen appears, the device is ready for operation.

Operating Instructions

Device Overview and Controls

Image: Diagram illustrating the various components and controls of the AST300PPM, including the probe tip, display, buttons, and ports.

• Probe Tip/Filter: Flexible probe for reaching tight spaces. Contains a replaceable filter.
• Power Button: Turns the device on/off.
• Mode/Max Button: Cycles through operating modes (PPM, Automatic, Manual Zero) and displays maximum readings.
• SENS/ZERO Button: Adjusts sensitivity or performs a manual zero calibration.
• Headphone Jack: For connecting earbuds (included) for audible alarms.
• Volume Button: Adjusts the volume of audible alerts.
• Micro USB Power Input: Charging port.
• Eject Button: Releases the battery cover.
• Battery Cover: Protects the battery compartment.

Leak Detection Process

1. Power On: Turn on the device using the Power button. Allow it to warm up and stabilize.
2. Select Mode: Use the Mode/Max button to select your desired operating mode:
   • PPM Mode: Displays the concentration of refrigerant in parts per million. Ideal for quantifying leak size.
   • Automatic Zero Mode: The device automatically zeros itself to the ambient air, making it suitable for general scanning.
   • Manual Zero Mode: Allows you to manually set the zero point in a known clean air environment for precise pinpointing.
3. Scan for Leaks: Slowly move the probe tip around suspected leak areas. The PPM display will increase, and the audible alarm will intensify as you approach a leak source.
4. Pinpoint the Leak: Once a general area is identified, switch to a more sensitive mode or use the Manual Zero function in a clean area near the leak to pinpoint the exact source. The device's "Cloud Hunting" mode helps find the area of highest concentration, then switch to pinpoint mode for precision.

Image: The AST300PPM in use, demonstrating its large LCD display showing PPM readings and indicating the availability of PPM and Pinpoint modes for efficient leak detection.

Image: A graphic illustrating the concept of dual modes, showing how to first find the general area of concentration ("cloud hunting") and then pinpoint the exact leak source.

Maintenance

1. Infrared Sensor Replacement

The infrared sensor is a critical component and is designed for easy field replacement. When the sensor's performance degrades or it reaches its end of life, replace it with a genuine Inficon replacement sensor. Refer to the device's specific instructions for sensor access and replacement. This process typically involves opening a compartment and carefully swapping the sensor module.

2. Filter Replacement

The probe tip contains a filter that prevents debris from entering the sensor. Regularly inspect and replace this filter, especially if operating in dusty or contaminated environments. Use the spare filters provided in the kit.

3. Battery Care

To maximize battery life, avoid fully discharging the battery frequently. Store the device in a cool, dry place when not in use. If storing for extended periods, ensure the battery has a partial charge (around 50%).

4. Cleaning

Wipe the exterior of the device with a soft, damp cloth. Do not use abrasive cleaners or solvents. Ensure no liquids enter the device's openings.

Image: A visual emphasizing the field-replaceable nature of key components like the infrared sensor and the new lithium-ion battery, highlighting ease of maintenance.

Troubleshooting

Specifications

Warranty and Support

Warranty Information

The Inficon AST300PPM Refrigerant Leak Detector comes with a 2-Year Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.

Technical Support

Inficon provides dedicated U.S. Tech Support for all its products. For technical assistance, troubleshooting, or service inquiries, please refer to the contact information provided in the product packaging or visit the official Inficon website. Inficon has over 50 years of expertise in leak detection technology.

Image: A graphic representing Inficon's U.S. Tech Support, emphasizing their expertise and commitment to customer assistance.