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LI-COR LI-250, Instruction Manual

The LI-COR LI-250 is a versatile light meter for measuring photosynthetically active radiation (PAR). Download the Instruction Manual for free from manualshive.com to learn how to accurately measure light in your research studies. Ensure precise readings with the comprehensive manual available for download now.

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Summary of Contents for LI-250

Page 1: ...LI COR inc Environmental Division 4421 Superior Street P O Box 4425 Lincoln Nebraska 68504 Phone 402 467 3576 FAX 402 467 2819 Toll free 1 800 447 3576 U S Canada E mail envsales env licor com Interne...

Page 2: ...Number 9604 114 April 1996 LI COR Inc Environmental Division 4421 Superior Street P O Box 4425 Lincoln Nebraska 68504 Phone 402 467 3576 FAX 402 467 2819 Toll free 1 800 447 3576 U S Canada e mail en...

Page 3: ...ITED TO THE IMPLIED WARRANTIES OF MER CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE LI COR shall not be liable for errors contained herein or for incidental or consequential damages in connection...

Page 4: ...y 1 1 Configuration vs Measurement Mode 5 1 2 Making Measurements 5 Section 2 Sensors Accessories 2 1 Compatible Sensors 9 2 2 Sensor Calibration 10 2 3 Accessories 13 2 4 Power Requirements 13 APPEND...

Page 5: ...example you might enter a multiplier that applies to measurements under water and one that applies to measurements in air for an LI 192SA Underwater Quantum Sensor In measure ment mode the LI 250 mak...

Page 6: ...y matches the sensor type Readings will be incorrect if the Units Label does not match the sensor type Sensor Type Units Label Readout Units Quantum Pyranometer Photometric mol W m 2 lux or Klux mol s...

Page 7: ...that pressing CAL when in measurement mode will display the multiplier in current use The multiplier dis played when CAL is pressed again will be stored as the active multiplier whether you have chan...

Page 8: ...units of lux If you want to configure the LI 250 to read out in lux you must use the photometric sensor LI COR type SB radiation sensors are also compatible if the Calconnector Calibration connector i...

Page 9: ...s exposed to a standard lamp of known intensity The sensor output at this intensity has general units of microamps per radiation unit and is called the Calibration Constant Calconstant Each sensor has...

Page 10: ...ber 1985 the calibration multiplier is given on the certificate of calibra tion and is also attached to the sensor An example of a calibration label attached to a quantum sensor appears below which wo...

Page 11: ...lost or misplaced it can be obtained from LI COR by providing the serial number of the sensor Converting Calconstants to Multipliers For LI COR sensors that are not type SA i e type SB etc the calibra...

Page 12: ...averages PPFD over its one meter length for plant canopy PPFD profile studies LI 192SA Underwater Quantum Sensor measures Photosynthetic Photon Flux Density PPFD in air or under water incident on a fl...

Page 13: ...one 9 volt transistor battery Eveready alkaline 522 LI COR part 216 or equivalent may be used Battery life is in excess of 150 hours A LO BAT message is displayed when there is less than 20 hours of...

Page 14: ...sor Averaging Sensor output is averaged for 15 seconds when AVG key is pressed in Measurement mode Averages are displayed in HOLD mode to retain the average on the display Linearity 0 05 Operating Con...

Page 15: ...Sensors Any LI COR sensor with BNC connector Quantum Pyranometer or Photometric Warranty 1 year parts and labor LI 250 Range and Resolution Sensor Type Quantum Radiometric Photometric Range Resolution...

Page 16: ...022 1017 photons s 1 m 2 6 022 1017 quanta s 1 m 2 6 022 1013 quanta s 1 cm 2 Radiometric 1 W m 2 1 433 10 3 cal cm 2 min 1 1 433 10 3 langley min 1 0 100 mW cm 2 100 W cm 2 1 0 J s 1 m 2 1000 erg s...

Page 17: ...ent was used in the normal proper and ordinary manner and has not been abused altered misused neglected involved in and accident or damaged by act of God or other casualty 4 The purchaser whether it i...

Page 18: ...ves be liable for damages beyond the price paid for the instrument or for direct incidental or consequential damages The laws of some locations may not allow the exclusion or limitation on implied war...

Page 19: ...pproved for making such repairs and has agreed with the customer to make such repairs as covered by this limited warranty Further information concerning this warranty may be obtained by writing or tel...

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