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Heinz Walz US-SQS, Instruction Manual

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Heinz Walz US-SQS Instruction Manual Download Page 1

 
 
 
 
 
 
 
 

US-SQS 

Spherical Micro Quantum 

Sensor

 

 

 

 

 

 

Instruction Manual

 

 
 
 
 

 

3rd Edition: 12-May-11 

US-SQS_Manual_3.doc 

 

©

 Heinz Walz GmbH, 2011 

 
 
 
 
 

Heinz Walz GmbH 

•

 Eichenring 6 

•

 91090 Effeltrich 

•

 Germany 

Phone +49-(0)9133/7765-0 

•

 Fax +49-(0)9133/5395 

E-mail [email protected] 

•

 Internet www.walz.com

Printed in Germany

 

Summary of Contents for US-SQS

Page 1: ...nstruction Manual 3rd Edition 12 May 11 US SQS_Manual_3 doc Heinz Walz GmbH 2011 Heinz Walz GmbH Eichenring 6 91090 Effeltrich Germany Phone 49 0 9133 7765 0 Fax 49 0 9133 5395 E mail info walz com In...

Page 2: ......

Page 3: ...n 6 4 1 Calibration Procedure 6 4 2 Calibration Certificate 6 5 Making Measurements 10 5 1 General Information 10 5 2 PAM Applications 10 5 2 1 US SQS L 10 5 2 2 US SQS IB 10 5 2 3 US SQS WB 11 5 2 4...

Page 4: ......

Page 5: ...sture areas 4 Keep the device away from dust sand and dirt 5 Always ensure there is sufficient ventilation 6 Do not put the device anywhere near sources of heat 7 Connect the device only to the power...

Page 6: ...to a 2 mm plastic fiber which guides the light to a blue enhanced silicon photodiode equipped with a special filter set for the selection of photosynthetically active radiation between 380 nm and 710...

Page 7: ...the absolute response to energy fluence rate from 350 750 nm Fig 1a Absolute spectral sensitivity for Photon Fluence Rate Fig 1b Absolute spectral sensitivity for Energy Fluence Rate Absolute Spectral...

Page 8: ...dices of air and water the calibration constant of the US SQS in water differs from that in air This phenomenon is known as the immersion effect The air water ratio of the calibration constant is equa...

Page 9: ...ponse in water relative to response in air 00 Fig 3 Determination of immersion factor The obtained relative response for zero depth was corrected for 2 radiation loss at the air water interface The re...

Page 10: ...iode The reference diode is calibrated against a standard diode traceable to the NIST Accuracy from 380 900 nm is 5 The calibration constant given in the calibration sheet takes into account the spect...

Page 11: ...CHAPTER 4 CALIBRATION 7 Fig 4a First page of a typical calibration certificate...

Page 12: ...CHAPTER 4 CALIBRATION 8 Fig 4b Second page of a typical calibration certificate...

Page 13: ...can be increased by using the supplied information for the relative sensitivity S For example for an LED light with a narrow spectrum peaking at 640 nm the correction can be done as follows If the rea...

Page 14: ...set within this amplifier during manufac turing and can not be changed by the user see below 5 2 PAM Applications The basic sensor US SQS L can be combined with special ampli fiers for different PAM i...

Page 15: ...but also PAM 2100 Leaf Clip Mini PAM Leaf Clip The amplifier of the US SQS WB is adjusted to the particular calibration factor of the sensor for the use in water Therefore the displayed values are onl...

Page 16: ...e in water Displayed values are only correct if the sensor is submersed in water 5 2 4 1 Exchanging Battery For exchanging the battery unscrew all four screws at the top of the amplifier housing Take...

Page 17: ...are in a 90 position to the unthreaded holes The hood is provided with a small positioning help which can be left on the shaft of the sensor when the hood is removed 6 Cleaning Information Do not use...

Page 18: ...1 because PAR is expressed in SI units which is not weighted per definition Furthermore correct weighting would depend on the pigmentation of the organism which varies between different plants and be...

Page 19: ...sors having a plane surface e g the Micro quantum sensor MQS PPFR Photosynthetic Photon Fluence Rate The photon fluence rate is defined as total number of photons in cident per time interval from all...

Page 20: ...pp Bj rn L O 2008 Principles and nomenclature for the quantification of light chapter 2 In Photobiology The Science of Life and Light Springer Verlag Berlin Heidelberg New York 42 49 Braslavsky S E 20...

Page 21: ...L 50 V R 5V 850nm I P 800 A 25 ns 0 18 K in air with correction for the spectral difference between the calibration lamp and sun light 5 5 error up to 100 from normal axis 5 error over 360 at 90 from...

Page 22: ...lifier for Aux Input Setting x1 0 2 5 V DC 0 1000 mol m 2 s 1 or 0 2 5 V DC 0 20 000 mol m 2 s 1 automatic adjustment Setting x10 0 2 5 V DC 0 100 mol m 2 s 1 3 m 0 5 m sensor 1 x 11 cm hood 3 4 x 3 2...

Page 23: ...nce alteration or accident 4 This warranty does not apply to damage caused from improper packaging during shipment or any natural acts of God 5 This warranty does not apply to underwater cables connec...

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