User Manual Refrigerant Leak Detector Model RD200 Additional User Manual Translations available at www.extech.
Introduction Congratulations on your purchase of the Extech RD200 Refrigerant Leak Detector. This handheld meter detects leaks for SF6 gas, all types of HFC, CFC, and HCFC refrigerants as well as most compounds containing halogen. We ship this meter fully tested and calibrated and, with proper use, it will provide years of reliable service. Please visit our website (www.extech.com) to check for the latest version of this User Manual and for Customer Support.
Meter Description 1. Flexible probe shaft 2. Color-coded LED level indicators 3. Sensitivity select buttons (Low, High) 4. Battery status LED 5. Power ON/OFF button 6. Removable sensor access collar 7. Heated diode sensor Operation Note: Power OFF the system under test before attempting to find leaks. Powering the Meter 1. Short press the ON/OFF button (5) to power the meter. Replace the battery if the meter does not switch ON or if the low battery LED (4) glows red. 2.
Testing for Leaks in Air Conditioning 1. Add refrigerant to the air conditioning system in order to maintain a pressure of 340Kpa (50PSI). Leaks may go undetected if the ambient temperature is < 15°C (59°F), because of insufficient pressure. 2. Before testing, conduct a visual and audible inspection of the entire refrigerating system including all pipes, hoses, and components. Look for leaks, damage, or corrosion. Listen for the sound of air escaping. 3.
Maintenance Cleaning 1. Wipe the meter housing with a damp, soft cloth. Use only mild soap and water. 2. Never use organic solvents to clean the meter (such as thinner, benzene, etc.) as they can damage the sensor. 3. Clean the sensor area with a dry cloth or use compressed air to clear away debris. Battery Replacement When the low battery LED (4) glows red, the 9V battery must be replaced. 1. The battery compartment is located on the rear of the meter.
Specifications General Specifications Detectable Refrigerants SF6 electrical equipment and gas, HFC, CFC, HCFC refrigerants, HFC (R134 and R123), halogen gas, ethylene, tetrafluoroethylene, trichloroethylene, and most compounds containing halogen. Sensor Replaceable heated diode gas detector (part no. RD200-S) Accuracy < 2.8g/year (0.1oz./year) Sensitivity Levels Low 30g/year (1.05oz./year) High 6g/year (0.2oz.
