LI-250 Light Meter

Accuracy

25¡É : Typically ±0.4% of reading ±3digits on the least significant digit displayed(all ranges)
0~55¡É : Ttypically ±0.6% of reading ±3digits on the least significant digit displayed(all ranges)

Range Selection

Autoranging(3 ranges)

Linearuty

±0.05%

Sensors

Any LI-COR type "SA" or type "SB" sensor with BNC connector; Quantum, Pyranometer, or Photometric, Older LI-COR radiation sensors, or those without any connector must have a BNC connector, installed. Contact LI-COR.

Sensor Calibration

Each sensor is supplied with a calibration multiplier. Calibration multipliers for two sensors can be stored in memor. Calibration multipliers are entered from the keypad.

Signal Averaging

Sensor output can be collected and displayed as a 15 second average(approx. 60 readings). Averages are retained on the display in HOLD mode.

LI-250 Range and Resolutiom

Sensor

Range

    Resolution

Quantum

199 umol s^-1m^-2
1999
19999

0.01 umol s^-1m^-2
0.1
1

Radiometer

19 Wm^-2
199
1999

0.001 Wm^-2
0.01
0.1

Photometric

1999 lux
19999 lux
199 klux

0.1 lux
1
0.01 klux

Display

4-1/2 digit LCD display. Updated every 0.5 seconds in Instantaneous mode. 

Keypad

Sealed, 5-Key tactile response keypad. 

Battery Life 

150 hours typical with continuous operation. 

Power Requirement

One 9V Eveready Alkaline

Low Battery Detection

Low battery indicator displayed with approx.20 hours battery life remaining.

Operating Conditions

0 to 55¡É, 0 to 95%RH(non-condensing)

Storage Conditions

-55 to 60¡É, 0 to 95%RH(non-condensing)

Size and Weight

14cmL x 7.7cmW x 3.8cmD and 0.26Kg

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