Data Sheet LM-120 Light Meter with Auto Ranging The Amprobe LM-120 light meter measures the visible light from fluorescent, metal halide, high-pressure sodium or incandescent sources. It is a portable, easy-to-use digital light meter designed for simple one-hand operation reading in Lumen (lux) or footcandle (fc) units. The LM-120 measures a wide range of light up to 20,000 fc or 200,000 lux with an accurate, high resolution of 0.01 fc/lux. This unit is Autoranging plus manual ranging with ability to Zero out the reading before taking a measurement. Use the LM-120 light meter to measure the illumination level in the interior and to switch off or reduce or increase the output level of lighting fixtures. Reduce the energy burden of the building by significantly increasing the efficiency of its lighting system. No hassle One lux is the illumination from a one candela lamp warranty perpendicular to a surface one meter squared at a distance of No waiting. one meter. One fc is the illumination from a one candela lamp perpendicular to a surface one foot squared at a distance No shipping of one foot. 1 foot-candle = 10.764 Lux and 1 lux = 0.09290 charges. footcandles Our commitment to high-quality products Measure in Lux or Footcandles, front panel switchable and customer service is demonstrated by Measuring Range to 200,000 Lux or 20,000 Foot candles our industry exclusive Silicon photodiode sensor and filter No Hassle warranty. In the unlikely event Data Hold to freeze reading on the digital display that an Amprobe Test MIN / MAX ability to show high and low readings Tool requires warranty service, any of our Autoranging plus Manual Range local dealers are Zero function to null display before a reading authorized to replace it, on the spot. Auto Power Off to save battery life (note: 500 MSLP limit) Includes protective sensor cap Large, 3-1/2 digit display Amprobe Test Tools www.Amprobe.comData Sheet LM-120 Light Meter with Auto Ranging Specifications Illumination Accuracy at 23C 5C (73.4F 5F), < 75% R.H. Sensor Silicon photodiode and filter Measurement rate 2.5 times per second Range 20, 200, 2000, 20000, 200000 Lux 20, 200, 2000, 20000 Foot candles Accuracy 3% (Calibrated to standard incandescent lamp at 2854K) 6% other visible light sources Angle deviation from cosine Characteristics 30 2% 60 6% 80 25% Cosine Angular corrected per JIS C 1609:1993 and CNS 5119 general A class Resolution 0.01 fc/lux General Specifications Display 3 digit liquid crystal display (LCD) with a maximum reading of 1999 Sampling Rate 2.5 times per second for digital display Polarity Automatic, positive implied, negative polarity indication Overrange (OL) or (-OL) is displayed Zero Automatic Low battery indication The is displayed when the battery voltage drops below the operating level Temperature / Humidity Operating -10C to 50C (14F to 122F), 0 to 80%RH Storage -10C to 50C (14F to 122F), 0 to 70%RH Altitude 2000m, indoor operation Power Supply 9V NEDA 1604, IEC 6F22, JIS 006P battery Battery life 200 hours Auto Power Off approx 6 min Dimension (Base) 130 x 63 x 38 mm (5.1 x 2.5 x 1.5) Dimension (Sensor) 80 x 55 x 29 mm (3.2 x 2.2 x 1.1) Weight 220 g (.48 lb.) include battery Agency Approvals & Certifications - EMC EN61326-1 This product complies with requirements of the following European Community Directives: 89/336/EEC (Electromagnetic Compatibility) and 73/23/EEC (Low Voltage) as amended by 93/68/EEC (CE Marking). However, electrical noise or intense electromagnetic fields in the vicinity of the equip - ment may disturb the measurement circuit. Measuring instruments will also respond to unwanted sig- nals that may be present within the measurement circuit. Users should exercise care and take appropri- ate precautions to avoid misleading results when making measurements in the presence of electronic interference. Amprobe Test Tools Amprobe Test Tools Europe website: www.Amprobe.com Amprobe Test Tools Europe email: info amprobe.com Beha-Amprobe GmbH Everett, WA 98203 In den Engematten 14 Tel: 877-AMPROBE 79286 Glottertal, Germany 2008 Amprobe Test Tools. All rights reserved. Tel.: +49 (0) 7684 8009 - 0 7/2008 3358146 Rev A Amprobe Test Tools www.Amprobe.com