J-Lite owner’s manual For 65 years Delmhorst Instrument has been the leading manufacturer of high quality, US-made moisture meters and thermo-hygrometers. Today we offer a wide range of meters for applications including water damage restoration, construction, flooring, lumber/woodworking, paper, and agriculture. . WHEN ACCURACY IS THE POINT ® TM 51 Indian Lane East Towaco, NJ 07082 (877)-DELMHORST (3 3 5 - 6 4 6 7 ) www.delmhorst.com info@delmhorst.
˚C -20 -10 5 15 30 40 50 60 70 80 95 105 ˚F 0 20 40 60 80 100 120 140 160 180 200 220 6 9 8 7 6 6 5 5 4 4 3 3 2 7 11 10 8 7 7 6 5 5 4 4 4 3 TEMPERATURE CORRECTION TABLE METER READINGS 10 15 20 25 30 15 22 31 38 45 14 20 28 34 40 12 18 24 30 36 11 16 21 27 32 9 14 19 23 28 8 12 17 21 25 7 11 15 19 22 7 10 14 17 20 6 9 12 15 18 5 8 11 13 16 5 7 10 12 14 4 6 9 11 13 35 53 47 42 38 33 29 26 23 21 19 17 15 40 55 48 43 38 34 30 27 24 22 19 17 50 60 54 47 42 38 34 30 27 24 21 55 50 44 40 36 33 28 26 Moi
WOOD SPECIES CORRECTION TABLE METER READING ALDER APITONG ASPEN ASH, WHITE BASSWOOD BIRCH CEDAR, EAST. RED CEDAR, INCENSE CHERRY COTTONWOOD CYPRESS ELM, AMERICAN FIR, DOUGLAS FIR,RED FIR, WHITE GUM, BLACK GUM, RED HEMLOCK, WESTERN HACKBERRY HICKORY KERUING LARCH MAGNOLIA MAHOGANY, AFRICAN (ALSO KHAYA) MAHOGANY, HOND. MAHOGANY, PHIL. MAPLE, HARD/SOFT MERANTI, DARK RED OAK, RED OAK, WHITE PECAN PINE, LONGLEAF PINE, PONDEROSA PINE, SHORTLEAF PINE, SO.
TABLE OF CONTENTS 2 J-Lite Features 3 Check Calibration 3 Taking a Reading 4 Understanding Your Readings 5 Meter Readings 6 Care of Your Meter 6 Service For Your Meter 7 Warranty
DELMHORST J-LITE $ #2497A-100 contact pins with 5/16” penetration % Connector for External Electrode # LED Readout ! Read Key @ Calibration Check Key J-LITE FEATURES hResistance technology recognized worldwide as the most accurate method for measuring moisture h6% to 30% MC range on wood (Douglas Fir) hLED readout hProven microcontroller circuit hBuilt-in calibration check hEasy one-hand operation hIncludes (1) 9-Volt Battery hIncludes sturdy carrying case hThree-year warranty 2
CHECK CALIBRATION Press the calibration check key @. Meter is in calibration when the “12” lights up. If you check the calibration and an LED other than the “12” lights up, it is likely an indication of a low battery. If this occurs, change the battery immediately. Continued use with a low battery may cause the meter to go out of calibration. If you have a fresh battery and the instrument still does not indicate a proper calibration, return it to DELMHORST for service. See Service for Your Meter section.
UNDERSTANDING YOUR READINGS Refer to the chart on page 5 for interpretation of meter readings. Since the J-LITE displays %MC in a range between two values, corrections for wood temperature, pin, and species have less impact on the accuracy of the meter readings, especially below 12%. Meter readings taken on construction-grade lumber material can be taken at face value, without making these corrections for many applications. If your application requires a higher level of accuracy (ex.
METER READINGS If the LED displays: The %MC is: Blinking 6% Below 5.5% 6% Between 5.5 and 6.0 7% Between 6.1 and 7.0 8% Between 7.1 and 8.0 9% Between 8.1 and 9.0 10% Between 9.1 and 10.0 Blinking 10% and 12% Between 10.1 and 11.0 12% Between 11.1 and 12.0 Blinking 12% and 15% Between 12.1 and 13.5 15% Between 13.6 and 15.0 Blinking 15% and 17% Between 15.1 and 16.0 17% Between 16.1 and 17.0 Blinking 17% and 19% Between 17.1 and 18.0 19% Between 18.1 and 19.0 20% Between 19.1 and 20.
CARE OF YOUR METER To keep your meter in good working order: hStore your meter in a clean, dry place. The protective carrying case provided is an ideal storage place when the meter is not in use. hChange the 9-Volt battery as needed. Continued use with a low battery may cause the meter to go out of calibration. hChange contact pins as needed. Keep pin retainers hand tightened. hClean the meter and contact pins with any biodegradable cleaner. Use the cleaner sparingly and on external parts only.
WARRANTY Delmhorst Instrument Co., referred to hereafter as Delmhorst, guarantees its J-Lite meter for three years from date of purchase and any optional electrodes against defects in material or workmanship for 90 days. If, within the warranty period, you find any defect in material or workmanship return the meter following the instructions in the Service for Your Meter section.
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