LI-COR LI-250A Скачать руководство пользователя страница 8

Making measurements

If you want to store a second calibration multiplier (either
for a second sensor or the

In Water

and

In Air

multipliers

for the LI-192 and LI-193 Underwater Quantum Sensors)
press

CAL

, then press

MULT SELECT

to switch to the second

multiplier. Press the arrow key to change the value of the
multiplier, and then press

CAL

to save it.

The multiplier in

effect is the one displayed when you press

CAL

to exit con-

figuration mode.

Note:

Pressing

MULT SELECT

before pressing

CAL

dis-

cards any changes you have made to the multiplier cur-
rently shown on the display.

Pressing

CAL

when in measurement mode will display the

multiplier in current use. The multiplier displayed when

CAL

is pressed again will be stored as the active multiplier,

whether you have changed it or not.

While in measurement mode, press

HOLD

to retain the cur-

rent reading on the display. Press

HOLD

again to restore

live readings. Press

AVG

to begin a 15 second average,

which will be displayed until you press the

HOLD

key to

resume measurements. Press and release the

OFF

button to

power off the LI-250A. It will automatically shut off after
25 minutes of inactivity in measurement mode.

Caution:

The LI-250A is weather resistant. However,

protect the meter from immersion or prolonged contact
with water, especially in marine environments. Water
damage is not covered under the warranty.

3

Содержание LI-250A

Страница 1: ...LI 250A Light Meter Instruction Manual...

Страница 2: ......

Страница 3: ...4 Phone 1 402 467 3576 Toll free 800 447 3576 U S and Canada envsales licor com Regional Offices LI COR Biosciences GmbH Siemensstra e 25A 61352 Bad Homburg Germany Phone 49 0 6172 17 17 771 envsales...

Страница 4: ...FITNESS FOR A PARTICULAR PURPOSE LI COR shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material...

Страница 5: ...nts 4 Section 2 Overview of compatible sensors Overview ofradiation sensorcalibration 5 Understandingthecertificateofcalibration 6 Compatiblesensorsandaccessories 9 Appendix A Specifications RangeandR...

Страница 6: ...c calibration calibrations are associated with the attached light sensor Configuration mode vs measurement mode The LI 250A has two modes of operation Configuration Mode where you enter calibration mu...

Страница 7: ...select W m 2 actual units are Watts m 2 l For a Photometric Sensor select Lux or Klux actual units are Lux or Kilolux Readings will be incorrect if the selected units do not match the sensor that is c...

Страница 8: ...ng CAL when in measurement mode will display the multiplier in current use The multiplier displayed when CAL is pressed again will be stored as the active multiplier whether you have changed it or not...

Страница 9: ...Insert the new battery by pushing straight down on the battery do not try to insert at an angle Instruments are fitted with a snap on connector simply align the male and female contacts and snap onto...

Страница 10: ...t possible for a pyranometer to read out in units of lux If you want the LI 250A to display units of lux you must use the photometric sensor Recalibration of all LI COR radiation sensors is recom mend...

Страница 11: ...alibration cer tificates are available from licor com env support The Calibration Constant is the relationship between a microamp of sensor current output and photons of radi ation The value is labele...

Страница 12: ...ibration Figure 1 For terrestrial radiation sensors LI 190R LI 191R LI 200R and LI 210R the value required by the LI 250A is labeled as For use with LI COR handheld meters and loggers The units given...

Страница 13: ...or use in air and another for use in water Older radiation sensors For type SA sensors manufactured between September 1985 and March 2015 the calibration multiplier is attached to the sensor cable and...

Страница 14: ...ll sensors are available from licor com env support Compatible sensors and accessories The following accessories and sensors are available for the LI 250A Contact LI COR for current information l LI 1...

Страница 15: ...al to that for the average human eye Readout of illuminance in lux is used for lighting studies or architectural mod eling l 250 01 Carrying Case A padded case for the LI 250A and terrestrial type rad...

Страница 16: ...e entered from the keypad Sensor 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...

Страница 17: ...tery Detection Low battery indicator displayed with approximately 20 hours battery life remaining Size 15 cm L 8 2 cm W 3 3 cm D 5 9 3 2 1 3 Weight 0 26 kg 0 57 lbs Compatible Sensors Any LI COR senso...

Страница 18: ...1999 mol s 1 m 2 0 1 mol s 1 m 2 0 19999 mol s 1 m 2 1 mol s 1 m 2 Pyranometer Range Resolution 0 19 W m 2 0 001 W m 2 0 199 W m 2 0 01 W m 2 0 1999 W m 2 0 1 W m 2 Photometric Sensor Range Resolution...

Страница 19: ...2 6 022 1017 quanta s 1 m 2 6 022 1013 quanta s 1 cm 2 Pyranometer 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 1 cm 2 0 317 BTU ft 2 h...

Страница 20: ...tions which are 1 The defects are called to the attention of LI COR Inc in Lincoln Nebraska in writing within one year after the shipping date of the instrument 2 The instrument has not been maintaine...

Страница 21: ...ument without charge if LI COR Inc s examination disclosed that part to have been defective in material or workmanship There are no warranties express or implied includ ing but not limited to any impl...

Страница 22: ...ch is a twelve month period commencing from the date the instrument is shipped to a user who is a customer or eighteen months from the date of shipment to LI COR Inc s authorized distributor whichever...

Страница 23: ...AppendixB Warranty Further information concerning this warranty may be obtained by writing or telephoning Warranty manager at LI COR Inc 18...

Страница 24: ......

Страница 25: ...al Offices LI COR Biosciences GmbH Siemensstra e 25A 61352 Bad Homburg Germany Phone 49 0 6172 17 17 771 envsales gmbh licor com LI COR Biosciences UK Ltd St John s Innovation Centre Cowley Road Cambr...

Отзывы: