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Summary of Contents for General RLD440
- Page 1 DIGITAL DUAL MODE REFRIGERANT LEAK DETECTOR USER’S MANUAL RLD440 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com Please read this manual carefully and thoroughly before using this product.
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Page 2: Table Of Contents
Mode Refrigerant Leak Detector. Please read this user’s manual carefully and thoroughly before using the product. The RLD440 is equipped with two leak detection technologies that can be used separately or in concert. Its long-lasting solid electrolyte semiconductor sensor can detect and gauge the size of leaks of all halogenated (chlorine or fluorine-based) refrigerant gases currently in common use. - Page 3 The RLD440’s proprietary sensor and detection technology are the keys to its excellent performance and durability. Compared to products of decades past with “heated sensors”, the RLD440 warms its sensor to a much lower temperature. The reduction in heat reduces the instrument’s power consumption and improves sensor stability while extending the life of the sensor and maintaining its electrochemical function.
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Page 4: How The Detectors Work
Following are the details of the electronic leak detection system. A small mechanical pump inside the RLD440 draws a sample of air through the tip of the instrument’s 17-in. long probe into a proprietary sensor 1-1/2 inches downstream. A proportional halogen detector in the sensor determines whether any refrigerant gas is in the sample. -
Page 5: Key Features
• 2-year limited warranty includes sensor WHAT’S IN THE PACKAGE The RLD440 comes fully assembled in a padded hard plastic carrying case. Also in the case are a leak test vial (for checking that the unit is performing properly), a pack of four “AA”... -
Page 6: Safety Instructions
(Fig. 1, Callout 2), will illuminate. Holding the RLD440 about 1 ft. away, shine the UV light beam slowly over all of the components, hoses, and metal lines of the A/C system. When the UV light contacts fluorescent dye that has escaped from the system, the dye will glow a bright yellow- green. -
Page 7: Detecting And Sizing Leaks Electronically
Mute button. The warmup cycle normally takes 17–20 seconds. 3) READY. The RLD440 is ready to search for leaks when: 1) the display stops flashing “0” and goes dark; 2) the green LED indicating NORM sensitivity (the default level) lights up;... - Page 8 Whenever the sensor at the end of the probe senses a refrigerant gas that it has been designed to detect: 1) The red LED at the end of the probe will begin flashing much faster than three times every two seconds 2) The beeper will increase its own frequency correspondingly 3) A number from 1 to 9 will appear in the digital leak size indicator window.
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Page 9: Using The Leak Test Vial
NOTE: If the above check does not produce a non-zero reading, either your leak test vial is empty or your RLD440 is defective. If the bottom of your leak test vial does not appear green, replace the vial. To locate a replacement, search the Internet for “Refrigerant leak detector reference”. -
Page 10: Specifications
“AA” batteries. To do so, follow the procedure in the Setup Instructions section of this manual. CHANGING THE FILTER The RLD440 ships with a pack of five small disc filters that install upstream of the sensor. Replace the filter whenever it becomes visibly dirty, or every few months, depending on use. -
Page 11: Warranty Information
Acceptance of the exclusive repair and replacement remedies described herein is a condition of the contract for purchase of this product. In no event shall General be liable for any incidental, special, consequential or punitive damages, or for any cost, attorneys’... - Page 12 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com Specifications subject to change without notice ©2014 GENERAL TOOLS & INSTRUMENTS NOTICE - WE ARE NOT RESPONSIBLE FOR TYPOGRAPHICAL ERRORS. MAN# RLD440 3/12/14...