eL-720 Carbon Dioxide Gas Leak Detector User’s Guide
eL-720 User’s Guide Congratulations on the purchase of the AccuTools™ eL-720 Carbon Dioxide Gas Leak Detector, the most technologically advanced instrument of its kind. The eL-720’s minimal power requirements, small size and high sensitivity combine to create a tool which is easy to handle and ultra effective at locating even the most difficult-to-find leaks. Please read this entire manual prior to operation to ensure trouble-free use of the eL-720. TECHNICAL DATA Dimensions 8” x 2.5” x 2.25” (20.
eL-720 User’s Guide WARNING: The eL-720 contains an optical sensor that must remain free of moisture and debris. Failure to operate the unit without a filter may cause the sensor to become contaminated. This will result in a sensor malfunction as indicated by the failed sensor alarm. INSTRUCTIONS 1. Press the button to turn the unit on. Unit will beep 3 times and all LEDs will light. 2. The unit will warm up and self-calibrate for 10 seconds, after which a constant beeping will be heard. 3.
eL-720 User’s Guide PROBE FILTER The probe filter prevents dust and moisture from contaminating the optical characteristics of the sensor. It should be replaced periodically. Occasionally, the filter may become obstructed with dirt, dust, or moisture. To determine if air is flowing properly into the eL-720 sensor, gently exhale near the probe tip. The human breath contains enough CO2 to cause a full alarm in high sensitivity mode. If the unit does not alarm, replace the filter.
eL-720 User’s Guide SENSOR An eL-720 sensor is designed for a long, trouble-free life. The sensor is tested and calibrated automatically each time the unit is powered on. A failed or failing sensor will be indicated 3 seconds after power-on by a two-tone alarm and all LEDs flashing. CLEANING THE SENSOR If moisture is suspected of contaminating the sensor, the probe and sensor may be cleaned using this procedure. 1. IMPORTANT: Remove the sensor from the instrument as directed on page 5. 2.
eL-720 User’s Guide SENSOR REPLACEMENT In the event of a failed sensor (as indicated by the Failed Sensor Alarm), cleaning or replacement of the sensor is necessary. First, clean the sensor as directed on page 4. If an alarm is still heard, the sensor must be replaced. To replace the sensor: 1. Turn the power off. 2. Remove the sensor compartment cover by loosening the sensor compartment cover screw. 3. Remove the 2 screws holding the sensor in place with a 1.5 mm hex wrench. 4.
eL-720 User’s Guide BATTERIES Ÿ The left-most (blinking) LED indicates the battery life, and dims when the batteries approach end of life. Less than one hour of battery life remains when the LED is completely dark. • When the batteries no longer contain enough energy to power the instrument reliably, a five second tone will be heard, after which the eL-720 will power itself off. Ÿ If the unit is left on unattended, it will automatically turn off after about 10 minutes to conserve batteries.
eL-720 User’s Guide NOTES 7
eL-720 User’s Guide Warranty and Repair 1 Year Limited Warranty Core Enterprises, Inc. warrants that this AccuTools™ product conforms to Core Enterprises, Inc. published specifications and will be free from defects in material and workmanship. The duration is for a period of one year from the date of purchase. Core Enterprises, Inc., at its option, will repair or replace this product or any component of the product found to be defective during the warranty period.
3650 Coral Ridge Drive, Suite 101 Coral Springs, FL 33065 Ph: (954) 227-0781 • Fax: (954) 227-1094 www.accutools.com P/N 10310-01 Rev.
