Apogee Instruments SQ-647 Скачать руководство пользователя страница 1

APOGEE INSTRUMENTS, INC. | 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 

Model SQ-647 

Rev: 28-Oct-2020

 

Содержание SQ-647

Страница 1: ...S INC 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 Model SQ 647 Rev 28 Oct 2020 ...

Страница 2: ...e of Compliance 3 Introduction 4 Sensor Models 5 Specifications 5 Deployment and Installation 8 Cable Connectors 8 Operation and Measurement 10 Maintenance and Recalibration 15 Troubleshooting and Customer Support 16 Return and Warranty Policy 17 ...

Страница 3: ...t 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 polybromi...

Страница 4: ...e of wavelengths can be thought of as an extended range quantum 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...

Страница 5: ...heir 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: ...er year Non linearity Less than 1 up to 4000 µmol m 2 s 1 Response Time 0 6 s time for detector signal to reach 95 following a step change fastest data transmission rate for SDI 12 circuitry is 1 s 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 D...

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: ... please 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...

Страница 10: ...g specification php version 1 4 August 10 2016 Overview During normal communication the data recorder sends a packet of data to the sensor that consists of an address and a command Then the sensor sends a response In the following descriptions SDI 12 commands and responses are enclosed in quotes The SDI 12 address and the command response terminators are defined as follows Sensors come from the fa...

Страница 11: ...ommand signals a measurement sequence to be performed Data values generated in response to this command are stored in the sensor s buffer for subsequent collection using D commands Data will be retained in sensor storage until another M C or V command is executed M commands are shown in the following examples Command Response Response to 0D0 aM or aM0 a0011 cr If Returns µmol m 2 s 1 aM1 a0011 cr ...

Страница 12: ...rees if pointed down Available in sensors with serial number 3033 or greater aCC or aCC0 a00101 cr lf Returns µmol m 2 s 1 w CRC aCC1 a00101 cr lf Returns millivolt output w CRC aCC2 a00101 cr lf Returns µmol m 2 s 1 w CRC aCC3 a00101 cr lf Returns immersed µmol m 2 s 1 for underwater measurements w CRC aCC4 a00101 cr lf Returns angle offset from vertical in degrees w CRC 0 degrees if pointed up 1...

Страница 13: ...ng the sensor version number and xx xx is serial number Running Average Command The running average command can be used to set or query the number of measurements that are averaged together before returning a value from a M or MC command For example if a user sends the command 0XAVG10 to sensor with address 0 that sensor will average 10 measurements before sending the averaged value to the logger ...

Страница 14: ... 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 15: ...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 solvents such as alcohol or acetone Use only gentle pressure when cleaning the diffuser with a cotton swab or soft cloth to avoid scratching the outer surface ...

Страница 16: ...ible Measurement Devices Dataloggers Controllers Meters Any datalogger or meter with SDI 12 functionality that includes the M or C command An example datalogger program for Campbell Scientific dataloggers can be found on the Apogee webpage at https www apogeeinstruments com content Quantum Digital CR1 Modifying Cable Length SDI 12 protocol limits cable length to 60 meters For multiple sensors conn...

Страница 17: ...r 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 Routine recalibration o...

Страница 18: ...anship Apogee Instruments will repair or replace the items free of charge If it is determined that your product is not covered under warranty you will be informed and given an estimated repair replacement cost PRODUCTS BEYOND THE WARRANTY PERIOD For issues with sensors beyond the warranty period please contact Apogee at techsupport apogeeinstruments com to discuss repair or replacement options OTH...

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