User Guide Refrigerant Leakage Detector Model RD300
Safety Please read the following safety information carefully before attempting to operate or service the meter. Only qualified personnel should attempt repairs. Safety symbols CE Certification This instrument complies with the following standards: EN61326 Electrical equipment for measurement, control and laboratory use equipment EMC test.
Introduction Congratulations on your purchase of the Extech RD300 Leakage Detector. This handheld meter measures leakage from air conditioning or cooling systems that use refrigerant. The LED work lights allow for viewing in dark or dimly lit environments. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit our website (www.extech.com) to check for the latest version of this User Guide, Product Updates, and Customer Support.
Operation 1. Power Button: Press and hold the power button for 2 seconds to turn power ON. All LEDs will light and the start‐up tone will sound. Press and hold power button for 2 seconds to turn off the meter. Check the battery if the meter does not switch ON. 2. Warm‐Up: The detector will automatically start heating the sensor after power‐on. During the 90 second warm‐up, the Leak Level LEDs and Power LED will be lit in cyclic fashion and the meter.
Maintenance Cleaning 1. Wipe the meter housing with a damp sponge or 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. Battery Replacement When the low battery LED is lit, the 9V battery must be replaced. 1. The battery compartment is located on the rear of the meter. 2. Open the rear battery cover and replace the battery. 3.
Specifications General Specifications Detectable Refrigerants Sensor Sensitivity Levels R‐22, R‐134a, R‐404a, R‐410a, and all CFCs, HCFCs and HFCs Heated Diode High 0.25oz/yr (7g/yr) Medium 0.5oz/yr (14g/yr) Warm up Time Auto Power OFF Low Battery Indication Power Supply Battery Life Operating Conditions Storage Conditions Low 0.
