Fluke 941 Light Meter

Fluke 941 lux meter

The Fluke 941 Light Meter is a portable and versatile tool designed to measure visible light in various environments. It can measure light up to 20,000 foot candles (fc) or lux with an accuracy of 0.01 fc/lux. The device is suitable for a wide range of applications, including clean room environments, agriculture, HVAC operations, room illumination assessment, and light source quality troubleshooting.

Key Features

The Fluke 941 Light Meter offers several key features, including:

• Measure in lux or foot candles, with one button to switch between display options
• Measuring range up to 20,000 lux or foot candles
• Data hold to freeze reading on the digital display
• Min/max ability to show high and low readings
• Auto power off to save battery life
• Includes protective sensor cap

Applications

The 941 fluke is suitable for various applications, including:

• Clean room environments
• Agriculture
• HVAC operations
• Room illumination assessment as part of environmental health and safety reviews
• Light source quality and troubleshooting

Using the Fluke 941 Light Meter in the Greenhouse

Fluke 941 Light Meter Specifications:

• Range:
  • 20, 200, 2000, 20000, 200000 Lux
  • 20, 200, 2000, 20000FC (footcandle)
• Precision:
  • ±3% (at 2854°K – calibrated by the common incandescent lamp)
  • ±6% other visible light sources
  • Cosine error
  • 30°±2%
  • 60 °±6 %
  • 80 °±25 %
  • Cosine angle corrected according to the grade A general specifications of JIS C 1609:1993 and CNS 5119 A
• Sampling rate: 2.5 times/second for the digital display
• Display: 3½ digit 1999-point LCD screen
• Sensor: Silicon photoelectric diode and optical filter
• Environment: For indoor use
• Power supply: 9V NEDA 1604, IEC 6LR61
• Battery life: 200 hours; in about 6 minutes after auto power-off
• Dimension
  • (main unit): 130 × 63 × 38 mm
  • Dimension (sensor): 80 × 55 × 29 mm
• Weight: 220 g (including the battery)