Amprobe LM120 Light Meter
Determine the amount of visible light coming from a light source with this Amprobe LM120 Light Meter.
Suitable for use with fluorescent, metal halide, high-pressure sodium and incandescent light sources, the LM-120 includes a light sensor attached to the main meter via a flexible cable. The light sensor should be held as close to the source as possible to gain a reading.
Light levels can be measure up to 20,000 footcandles (FC) or 200,000 lux with accurate high resolution of 0.01FC/lux. The LM-120 includes both auto and manual ranging modes, plus a zeroing mode which ensures accuracy before measurements taken place.
Want to jot down a reading? Hit the data hold button to instantly freeze the current value on the screen. A dedicated mode for calculating the maximum/minimum light levels over a period of time is also included.
Amprobe LM-120 Technical 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
|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|
|Low Battery Indication||Symbol is displayed when battery voltage level drops below 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|
|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|