www.Amprobe.com
Amprobe® Test Tools
Data Sheet
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LM-100
Light Meter
The Amprobe LM-100 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-100 measures a
wide range of light up to 20,000 fc or lux with an accurate,
high resolution of 0.01 fc/lux.
Use the LM-100 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.
One lux is the illumination from a one candela lamp
perpendicular to a surface one meter squared at a distance of
one meter. One fc is the illumination from a one candela lamp
perpendicular to a surface one foot squared at a distance
of one foot. 1 footcandle = 10.764 lux and 1 lux = 0.09290
footcandles
Measure in Lux or Footcandles, front panel switchable ■
Measuring Range to 200000 Lux or 20000 Foot candles ■
Silicon photodiode sensor and filter ■
Data Hold to freeze reading on the digital display ■
MAX ability to show high readings ■
Includes protective sensor cap ■
Large, 3-1/2 digit display ■
www.Amprobe.com
Amprobe® Test Tools
Data Sheet
©2008 Amprobe Test Tools. All rights reserved.
6/2008 3358154 Rev A Pub_ID: 11506-eng-01-A
Amprobe® Test Tools Europe
Amprobe Test Tools Europe
Beha-Amprobe GmbH
In den Engematten 14
79286 Glottertal, Germany
Tel.: +49 (0) 7684 8009 - 0
Amprobe® Test Tools
website: www.Amprobe.com
email: info@amprobe.com
Everett, WA 98203
Tel: 877-AMPROBE
LM-100 Light Meter
Specifications
Illumination Accuracy at 23°C ± 5°C (73.4°F ± 5°F), < 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 2854°K)
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 3¾ 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 -10°C to 50°C (14°F to 122°F), 0 to 80%RH
Storage -10°C to 50°C (14°F to 122°F), 0 to 70%RH
Altitude 2000m, indoor operation
Power Supply 9V NEDA 1604, IEC 6F22, JIS 006P battery
Battery life 200 hours
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.
