Light Meter

Specifications:

• Accuracy:
  • 25 °C: Typically ± 0.4% of reading ± 3 counts on the least significant digit displayed (all ranges).
  • 0 – 55 °C: Typically ± 0.6% of reading ± 3 counts on the least significant digit displayed (all ranges).
• Range Selection: Autoranging (3 ranges).
• Linearity: ± 0.05%.
• Sensors: Designed for type “SA” sensors; type “SB” and “SL” sensors with BNC connectors are also compatible when calconnector or millivolt adapter are removed.
• Sensor Calibration: Each sensor is supplied with a calibration multiplier. Calibration multipliers for two sensors can be stored in memory. Calibration multipliers are entered from the keypad.
• Signal Averaging: Sensor output can be collected and displayed as a 15-second average (approximately 60 readings). Averages are retained on the display in HOLD mode.
• Display: LCD display. Updated every 0.5 seconds in Instantaneous mode.
• Battery Life: 150 hours typical with continuous operation.
• Power Requirement: One 9V Alkaline battery.
• Operating Conditions: 0 to 55 °C, 0 to 95% RH (non-condensing).
• Storage Conditions: -55 to 60 °C, 0 to 95% RH (non-condensing).
• Size: 14 cm × 7.7 cm × 3.8 cm (5.5″ × 3″ x1.5″).
• Weight: 0.26 kg (0.57 lbs).
• Warranty: 1 year parts and labor.
• LI-250A Range and Resolution:

  Sensor	Range	Resolution
  Quantum	0-199 µmol s-1 m-2 0-1999 0-19999	0.01 µmol s-1 m-2 0.1 1
  Pyranometer	0-19 W m-2 0-199 0-1999	0.001 W m-2 0.01 0.1
  Photometric	0-1999 lux 0-19999 lux 0-199 klux	0.1 lux 1 0.01 klux

   

  Catalogue: PDF