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EKO INSTRUMENTS CO., LTD. - Pyranometer MS-60/60S - Instruction Manual Ver. 4

Pg. 28

APPENDIX

A - 1 . R a d i o m e t r i c Te r m s

Table A-1. Definitions of Terms

Hemispheric Solar Irradiance

Cosine-

weighted solar irradiance received over a solid angle of 2πsr on a

plane surface, expressed in units of W/m

2

or kW/m

2

.

Global Solar Irradiance, Global

Horizontal Irradiance [GHI]

Hemispherical solar irradiance received on a horizontal plane surface,

expressed in units of W/m

2

or kW/m

2

.

Direct Solar Irradiance, Direct

Normal Irradiance [DNI]

Normal-incidence solar irradiance received over a small solid angle which

includes the circumsolar irradiance, expressed in units of W/m

2

or kW/m

2

.

Diffuse Solar Irradiance, Diffuse

Horizontal Irradiance [DHI]

Hemispherical solar irradiance without the direct solar irradiance, i.e.

indirect irradiance of the scattered solar radiation [by air molecules,

aerosol particles, clouds, etc.], expressed in units of W/m

2

or kW/m

2

.

Pyranometer

A radiometer designed to measure the hemispheric solar irradiance over

the wavelength range of about 300 to 3000nm.

Pyrheliometer

A radiometer designed to measure the direct solar irradiance over a

certain solid angle including the circumsolar irradiance.

World Radiation Reference

[WRR]

Radiometric reference instrument system, which has an uncertainty of less

than +/-0.3%, expressed in SI units.

This reference is maintained by the World Meteorological Organization

[WMO], and it has been issued since January 1, 1980

ISO9060

An ISO norm [International Standard]. The first edition was published in

1990, then the second edition was revised in 2018.

Based on the performance of each characteristic, Pyranometer is

classified into three classes A, B, and C, and specifications of "Spectrally

flat radiometer" and "Fast response radiometer" are set as sub-categories.

Pyrheliometer is classified into 4 classes of AA, A, B and C based on the

performance of each characteristic, and specifications of "spectrally flat

radiometer" and "Fast response radiometer" are set as sub-categories.

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Содержание MS-60

Страница 1: ...INSTRUCTION MANUAL MS 60 MS 60S Pyranometer ISO9060 2018 Class B ISO9060 1990 First Class...

Страница 2: ...e Contents 9 5 Getting Started 10 5 1 Parts Descriptions 10 5 2 Setup 12 5 3 Measuring Solar Irradiance 18 6 Maintenance Troubleshooting 20 6 1 Maintenance 20 6 2 Calibration and Measurement Uncertain...

Страница 3: ...erica Region https eko usa com info eko usa com EKO INSTRUMENTS USA Inc 111 North Market Street Suite 300 San Jose CA 95113 USA Tel 1 408 977 7751 Fax 1 408 977 7741 2 2 Warranty and Liability For war...

Страница 4: ...h the WEEE Symbol figure Trash bin to alert our customers that products bearing this label should not be disposed of in a landfill or with municipal or household waste in the EU If you have purchased...

Страница 5: ...pjlabs com ISO IEC17025 provides a globally accepted basis for laboratory accreditation that specifies the management and technical requirements With calibrations performed at the EKO Instruments labo...

Страница 6: ...his declaration relates is in conformity with the following harmonized standards of other normative documents Harmonized standards EN 61326 1 2006 Class A Emission EN 61326 1 2006 Class A Immunity Fol...

Страница 7: ...connecting to a measuring instrument make sure to connect the shield cable to either the signal ground terminal on the measuring instrument side or GND the reference potential on the single end input...

Страница 8: ...ss and may cause injuries by broken glass parts When carrying the MS 60 with sunscreen attached always hold the instrument from the bottom Holding only the sunscreen part may lead to dropping the sens...

Страница 9: ...ld Radiometric Reference maintained at the PMOD WRC Physikalisch Meteorologisches Observatorium Davos World Radiation Center in Davos Switzerland Besides EKO provides a unique calibration service for...

Страница 10: ...Category of ISO9060 2018 spectrally flat pyranometer of class B Key features Outputs MODBUS 485 RTU SDI 12 4 20mA configurable 0 10mA 0 1V with external 100 precision shunt resistor Wide range of volt...

Страница 11: ...he glass domes of all EKO thermopile pyranometers permit to measure the cosine weighted global solar irradiance over the entire hemisphere i e with a field of view of 180 degree 2 Detector Thermopile...

Страница 12: ...dry The dry air inside the sensor body prevents condensation of humidity on the inside of the glass dome 5 Cable and Cable Connector All pyranometers are shipped with a 10 meter long output cable as s...

Страница 13: ...llows in mm Table 5 2 Fixing Hole Pitch and Bolt Size for Pyranometers MS 60 MS 60S Fixing Hole Pitch 65 mm Fixing Bolt Size M5 x 75 mm 2 Setup the pyranometer with the signal cable connector facing t...

Страница 14: ...he cable does not swing or move by wind blowing Exposure of the signal cable to excessive electromagnetic emissions can cause noise in the output signal as well Therefore the cable should be lined at...

Страница 15: ...How to connect 0 1V optional The default output is 4 20mA If 0 to 1V output is not selected as a purchase option 0 to 1V output is off Or the setting can be changed with the 485 USB conversion cable a...

Страница 16: ...I 12 Connect the output cable end DC power supply 12 V and data logging device as shown in the figure below Install a fuse 0 5A in series between the DC power supply and the MS 60S connection as shown...

Страница 17: ...digits of the product serial number If the last 2 digits are 00 the address will be 100 Communication errors may occur depending on the connection distance and the number of connections In that case...

Страница 18: ...o 36V DC 5 to 36V DC12V DC5 to 36V 2 White 4 20mA GND GND GND 0 10mA 0 1V GND 3 Blue RS485 B SDI 12 Data 4 Black RS485 A 5 Gray 4 20mA 0 10mA 0 1V Shield Shield FG FG FG FG When selecting 0 1V output...

Страница 19: ...the sensitivity of the MS 60 pyranometer is about 10 V W m 2 or 0 010mV W m 2 the maximum output voltage is about 1 400W m2 times 0 010mV W m 2 14mV b Calculate the Solar Irradiance W m2 The solar ir...

Страница 20: ...2 response which is equal to 1 1 e This time constant represented by the symbol is 3 times smaller than the values specified by EKO The recommended 1 sampling rate for pyranometers is smaller than So...

Страница 21: ...s in the center ring of spirit level When the pyranometer is setup in horizontal position An additional cosine azimuth error will be introduced Check Cable Condition Weekly Verify if the cable connect...

Страница 22: ...s and sensor stability issues can be revealed Data Weekly For the S series with Modbus output check the body temperature Temperature changes can cause offsets and change of sensitivity due to the dete...

Страница 23: ...e reference output mV and sensitivity V W m2 calculate the irradiance W m2 4 finally the sensitivity V W m2 value is calculated by division of the pyranometer output mV and reference irradiance W m2 M...

Страница 24: ...ttings i e port baud rate converter ID are appropriate Output value is too low The glass dome maybe soiled with rain or dust Clean the glass dome with a soft cloth The output may be decreased due to r...

Страница 25: ...l values Characteristics MS 60 MS 60S ISO9060 2018 Class B ISO9060 1990 First class Spectrally flat Fast response Response time 95 output 20 Sec 18 Sec 18 Sec Zero off set a 200W m2 15 W m2 5 W m2 5 W...

Страница 26: ...utput Cable outer diameter AWG22 0 3mm2 2pins 4 8mm AWG20 0 5mm2 5pins 6 7mm Output Cable Terminal Pin Terminal 1 25 11S Pin Terminal 0 3 9 5 Output or Signal Voltage mV Default MODBUS 485 RTU SDI 12...

Страница 27: ...Below table and figures give the pyranometer dimensions for each model Table 7 3 Dimensions MS 60 60S A Fixing Hole Pitch 65 mm B Body Height 91 5 mm C Levelling Screw Height 16 mm D Width including S...

Страница 28: ...Cable Length 20m 30m 50m Terminals Fork Terminals Round Terminals Pin Terminals Ventilation Unit with Heater Model MV 01 RS485 USB Converter Cable Converts from RS485 USB for the communication with MS...

Страница 29: ...d in units of W m2 or kW m2 Pyranometer A radiometer designed to measure the hemispheric solar irradiance over the wavelength range of about 300 to 3000nm Pyrheliometer A radiometer designed to measur...

Страница 30: ...nce irradiance is 1 000W m2 ISO 9060 2018 modified Include the zenith angle of zenith angle 90 or more Spectral error ISO 9060 2018 added Maximum spectral mismatch error of Pyranometer with respect to...

Страница 31: ...nd of the cable 3 Change of setting contents Here describes how to change the configurations such as MS 60S output range and sensitivity First install the software and connect the devices and PC with...

Страница 32: ...off the converter power Please do not unconnect the Blue and Black cables 2 Press OK button 3 Turn on the converter power within 5 seconds Fig A 3 Rescue When the communication with converter is achi...

Страница 33: ...types EKO Default MC 20 KZ Type HF Type Use only when communication installation of master device does not change in the case of installing different product such as swapping pyranometers Registry re...

Страница 34: ...k4 x ETC E T 3 S I Solar irradiance after the linearity correction ETC E T Measurement voltage after the temperature compensation mentioned above S Pyranometer sensitivity k1 k2 k3 k4 Correction facto...

Страница 35: ...its Stop Bit 1bit Default 2bits 2 Parity Bit None Default odd even Communication Distance Maximum 1 2km theoretical value Error Detection CRC 16 1 The open protocol for the serial communication which...

Страница 36: ...conversion voltage mV 63 UINT16 Analog power supply voltage 5 000 mV 64 UINT16 Digital power supply voltage 3 300 mV 80 81 82 83 FLOAT32 FLOAT32 Tilt Angle Role Angle C 84 85 86 SINT16 X axis count v...

Страница 37: ...Tilt sensor Z axis 1G value S 149 150 151 SINT16 Tilt sensor X axis origin Tilt sensor Y axis origin Tilt sensor Z axis origin T 152 153 UINT32 Manufacturing date YYYYMMDD type U 154 155 UINT32 Seria...

Страница 38: ...mum angle 90 Role angle East West tilt angle When the pyranometer cable is facing north the inclination to the west is indicated with positive value and the inclination to the east is indicated with m...

Страница 39: ...107 From the combination of amplifier type and input range it is selected with number Do not change from the factory setting TableA 10 Analog input setting Amplifier type Input range Amplifier type I...

Страница 40: ...e change 1 set with 2 addresses Temperature correction is not setup in default setting ETC E T E TC1 T TC1 T a b x T c x T2 d x T3 Whereas ETC E T Measurement voltage that compensated the temperature...

Страница 41: ...e hexadecimal Data Conversion 1 Conversion method when the data format is STR Data format after conversion ASCII Please convert according to ASCII code table Conversion example Data conversion of Mode...

Страница 42: ...ample Data conversion of solar irradiance Address 2 to 3 The FLOAT data will be in the following order As shown in the example put the data for No 2 before and the data for No 3 after together to make...

Страница 43: ...th address number a aM a0011 CR LF Request the device with address number a to perform measurement only one time aD0 1000 0 CR LF Request the device with address number a to send data The device will...

Страница 44: ...case the original manufacturer calibration remains unchanged The multiplication factor can be applied in the data logger or processing software 2 MS 60S The scale difference can be applied to the sens...

Страница 45: ...eko co jp EKO North America 111 North Market Street Suite 300 San Jose CA 95113 USA P 1 408 977 7751 F 1 408 977 7741 info eko usa com www eko usa com EKO Europe Middle East Africa South America Lulof...

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