Lafayette LM-1 - Mini luxmeter

Lafayette LM-1
MINI LUXMETER

Characteristics:

• Easy to use , pocket-sized and lightweight.
• It displays the light intensity value accurately both in Candles (Fc) and in Lux covering a very wide measurement range.
• Measures from 0 to 40000 Lux/Fc in four ranges
• Resolution 0.1Lux/Fc.
• Automatic range setting .
• Withholding maximum value .
• Light-sensitive backlit LCD .
• Automatic shutdown function .

Technical specifications:

• 3½ digital LCD display : displays up to 1999 and indicates light intensity Lux/Fc, low battery and maximum value.
• Out of range: indication of exceeding range (“OL”)
• Low battery indication: The battery icon is displayed to indicate that the charge is falling below the optimal operating value.
• Sampling rate: 2.5 times per second, nominal.
• Storage temperature: -10°C to 60°C (14°F – 140°F) with relative humidity <80%.
• Operating temperature and humidity: 0°C to 40°C (32°F – 104°F) and relative humidity from 0% to 80%.
• Auto shut-off: The appliance turns off automatically after approximately 15 minutes of inactivity.
• Power supply: standard 9V battery.
• Dimensions: 157x54x34 mm
• Weight: 170g.

Light:

• Measuring range: 200, 2000, 20000, 40000 Lux/Fc (1Fc=10.76 Lux)
• Accuracy: ±5% rdg ±10dgts (<10000 Lux/Fc)
• Accuracy: ±10% rdg ±10dgts (>10000 Lux/Fc) (reading range 20000 x10, reading
  range 40000 x100)
• Overexposure indication: “OL” is displayed (calibrated to a standard incandescent lamp with a color temperature of 2856k)
• Repeatability: ± 2%
• Temperature: ±0.1% /°C
• Light sensor: silicon photo diode with filter