Apogee SQ-600 Series Скачать руководство пользователя страница 10 | Manualshive

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Apogee SQ-600 Series Скачать руководство пользователя страница 10

OPERATION AND MEASUREMENT

Connect the sensor to a measurement device (meter, datalogger, controller) capable of measuring and displaying
or recording a millivolt signal (an input measurement range of approximately 0-200 mV is required to cover the
photon flux density range the sensor is capable of measuring). In order to maximize the measurement resolution
and signal-to-noise ratio, the signal input range of the measurement device should closely match the output range
of the PFD sensor.

Wiring for SQ-640

White: Positive (signal from sensor)

Black: Negative (signal from sensor)

Clear: Shield/Ground

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Содержание SQ-600 Series

Страница 1: ...NC 721 WEST 1800 NORTH LOGAN UTAH 84321 USA TEL 435 792 4700 FAX 435 787 8268 WEB APOGEEINSTRUMENTS COM Copyright 2020 Apogee Instruments Inc OWNER S MANUAL QUANTUM LIGHT POLLUTION SENSOR Models SQ 640 including SS models ...

Страница 2: ...te of Compliance 3 Introduction 4 Sensor Models 5 Specifications 5 Deployment and Installation 8 Cable Connectors 8 Operation and Measurement 9 Maintenance and Recalibration 13 Troubleshooting and Customer Support 14 Return and Warranty Policy 15 ...

Страница 3: ...nt of electrical and electronic products with respect to the restriction of hazardous substances Please be advised that based on the information available to us from our raw material suppliers the products manufactured by us do not contain as intentional additives any of the restricted materials including lead see note below mercury cadmium hexavalent chromium polybrominated biphenyls PBB polybrom...

Страница 4: ...uantum sensor Typical applications of traditional quantum sensors include incoming PPFD measurement over plant canopies in outdoor environments or in greenhouses and growth chambers and reflected or under canopy transmitted PPFD measurement in the same environments The Extended Range PFD Sensor detailed in this manual uses a detector that is sensitive to radiation up to about 1100 nm well beyond t...

Страница 5: ...ir respective manuals Model Signal SQ 640 Self powered SQ 642 0 2 5 V SQ 644 4 20 mA SQ 645 0 5 V SQ 646 USB SQ 647 SDI 12 SQ 648 Modbus Sensor model number and serial number are located on the bottom of the sensor If the manufacturing date of a specific sensor is required please contact Apogee Instruments with the serial number of the sensor ...

Страница 6: ...stability Less than 2 per year Non linearity Less than 1 up to 4000 µmol m 2 s 1 Response Time Less than 1 ms Field of View 180 Spectral Range 340 to 1040 nm 5 nm wavelengths where response is greater than 50 see Spectral Response below Directional Cosine Response 2 at 45 zenith angle 5 at 75 zenith angle see Directional Response below Azimuth Error Less than 0 5 Tilt Error Less than 0 5 Temperatu...

Страница 7: ...ely Mean spectral response measurements of six replicate Apogee SQ 600 series Quantum Light Pollution Sensors Spectral response measurements were made at 10 nm increments across a wavelength range of 300 to 1100 nm in a monochromator with an attached electric light source Measured spectral data from each quantum light pollution sensor were normalized by the measured spectral response of the monoch...

Страница 8: ...unted with the cable pointing toward true north in the northern hemisphere or true south in the southern hemisphere Azimuth error is typically less than 0 5 but it is easy to minimize by proper cable orientation In addition to orienting the cable to point toward the nearest pole the sensor should also be mounted such that obstructions e g weather station tripod tower or other instrumentation do no...

Страница 9: ...ease contact Apogee directly to ensure ordering the proper pigtail configuration Alignment When reconnecting a sensor arrows on the connector jacket and an aligning notch ensure proper orientation Disconnection for extended periods When disconnecting the sensor for an extended period of time from a station protect the remaining half of the connector still on the station from water and dirt with el...

Страница 10: ...f approximately 0 200 mV is required to cover the photon flux density range the sensor is capable of measuring In order to maximize the measurement resolution and signal to noise ratio the signal input range of the measurement device should closely match the output range of the PFD sensor Wiring for SQ 640 White Positive signal from sensor Black Negative signal from sensor Clear Shield Ground ...

Страница 11: ... 1 µmol m 2 s 1 per mV Sensor Output Signal mV Photon Flux Density µmol m 2 s 1 1 50 50 Example of photon flux density measurement with an Apogee model SQ 640 Quantum Light Pollution Sensor The LED in this example Full yields a photon flux density on a horizontal plane of 50 µmol m 2 s 1 This yields an output signal of 50 mV This signal is converted to photon flux density by multiplying by the cal...

Страница 12: ... SQ 620 Extended Range Quantum Sensor can measure a photon flux density range of 0 4000 mol m 2 s 1 The model SQ 640 Quantum Light Pollution Sensor is designed for low light measurements and can only measure a photon flux density range of 0 200 mol m 2 s 1 the sensor will output values beyond 200 mol m 2 s 1 but these are beyond the linear range of the sensor and is referred to as the low light ve...

Страница 13: ...ation water Apogee Instruments upward looking sensors have a domed diffuser and housing for improved self cleaning from rainfall but active cleaning may be necessary Dust or organic deposits are best removed using water or window cleaner and a soft cloth or cotton swab Salt deposits should be dissolved with vinegar and removed with a cloth or cotton swab Salt deposits cannot be removed with solven...

Страница 14: ...ng a sensitivity of 1 mV per µmol m 2 s 1 Thus a compatible measurement device e g datalogger or controller should have resolution of at least 1 mV in order to provide photon flux density resolution of 1 µmol m 2 s 1 and resolution of at least 0 1 mV in order provide photon flux density resolution of 0 1 µmol m 2 s 1 An example datalogger program for Campbell Scientific dataloggers can be found on...

Страница 15: ...d warranty items to our factory The warranty does not cover equipment that has been damaged due to the following conditions 1 Improper installation or abuse 2 Operation of the instrument outside of its specified operating range 3 Natural occurrences such as lightning fire etc 4 Unauthorized modification 5 Improper or unauthorized repair Please note that nominal accuracy drift is normal over time R...

Страница 16: ...geeinstruments com to discuss repair or replacement options OTHER TERMS The available remedy of defects under this warranty is for the repair or replacement of the original product and Apogee Instruments is not responsible for any direct indirect incidental or consequential damages including but not limited to loss of income loss of revenue loss of profit loss of wages loss of time loss of sales a...

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