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EKO MS-80 Instruction Manual
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EKO MS-80 Instruction Manual

Pyranometer
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MS-80
INSTRUCTION MANUAL
Pyranometer
ISO9060: 2018 Class A
MS-80S
ISO9060: 1990 Secondary Standard
MS-80U

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Summary of Contents for EKO MS-80

  • Page 1 MS-80 INSTRUCTION MANUAL Pyranometer ISO9060: 2018 Class A MS-80S ISO9060: 1990 Secondary Standard MS-80U...
  • Page 2 M S- 8 0 RT D t em per at u re c o n vers i o n ta b le [ Pt 10 0 C l as s A ] 48 Pg. 1 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...

  • Page 3: Important User Information

    For warranty terms and conditions, please contact EKO Instruments or your distributer for further details. EKO guarantees that the product delivered to customer has been tested to ensure the instrument meets its published specifications. The warranty included in the conditions of delivery is valid only if the product has been installed and used according to the instructions provided in this operating manual.

  • Page 4: Rohs Directive 2002/95/Ec

    EU. If you have purchased EKO Instruments branded electrical or electronic products in the EU and are intending to discard these products at the end of their useful life, please do not dispose of them with your other household or municipal waste.
  • Page 5 EKO is a unique manufacturer who can offer calibration service for pyranometers and pyrheliometers in-house. Based on the applied calibration methods EKO provides the best quality solar sensor calibrations compliant to the international standards defined by ISO/IEC17025 / 9847 [Indoor method] and ISO9059 [Outdoor method] [Certification: L13-94-R2 / www.pjlabs.com]...
  • Page 6 Date: April 4 , 2019 Position of Authorized Signatory: General Manager of R & D Department Name of Authorized Signatory: Shuji Yoshida Signature of Authorized Signatory: Pg. 5 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...

  • Page 7: Safety Information

    3. Safety Information EKO Products are designed and manufactured with consideration for safety; however, please make sure to read and understand this instruction manual thoroughly to be able to operate the instrument safely in the correct manner. WARNING Attention to user; pay attention to the instructions given on the CAUTION instruction manual with this sign.
  • Page 8 ➢ When carrying any MS-80 model with the sunscreen attached, always hold the instrument from the bottom. Holding only the sunscreen part may lead to dropping the sensor as it comes off from the sunscreen.
  • Page 9 The compact sensor with single dome is immune to offsets and integrates all value added functions to reduce maintenance. MS-80 pyranometer no longer have a drying cartridge, silica gel inside will keep the sensor dry during the entire life-cycle.
  • Page 10 UV radiation known as harmful radiation to materials can change the chemical properties of substances irreversibly. In case of the MS-80 the detector it is totally isolated below the sensor optics surface, which is sealed, and can’t be affected by a high dose of UV, moisture or pressure differences.
  • Page 11 Compact and light weight • Fast Response time [<0.5s@95%, <1s@99%] • Excellent temperature response over a wide temperature range [-20 to +50℃] • Low offset characteristics Pg. 10 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 12 [ M5 ] x2 *In case of MS-80/80S, standard length is 10m for both signal/power cable. For different length of cables [e.g. to meet your application needs] please contact EKO or your local distributor. MS-80U cable length is 3m, no other optional lengths are available.

  • Page 13: Getting Started

    B. Glass Dome C. Detector D. Body Levelling Screw Cable G. Spirit Level *The cable can’t be removed from the pyranometer Figure 5-2. Pyranometer Parts Name [MS-80U] Pg. 12 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 14 A glass dome creates a sealed environment for the detector and protects it against dirt and rain. The dome of the EKO pyranometers is only transparent for radiation emitted by the sun. Hence they block the undesired infrared radiation emitted by the Earth’s atmosphere. By the combination of the glass dome and the diffuser, it improves the cosine response generated by the incident light from the entire hemisphere.
  • Page 15 The sunscreen can be removed by loosening the knurling screw and sliding it towards the spirit level direction. *When carrying the MS-80 with sunscreen attached, always hold the instrument from the bottom. Holding only the sunscreen part may lead to dropping the sensor as it comes off from the sunscreen.
  • Page 16 [Installing at Tilted Position] After the MS-80 is adjusted to horizontal position in levelled surface, install it on tilted mounting position. *When installing the instrument, do not remove the levelling feet or fixed feet; if the levelling feet are removed, it may cause abnormal output values due to the thermal effects from the mounting part.
  • Page 17 Install a fuse [0.5A] in series between the DC power supply [+] and the MS-80S connection as shown below for over current protection. Power supply fuse[0.5A] DC5V to 36V 0 to 1V input Measurement Device Fig. 5-3D. How to connect MS-80S Pg. 16 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 18 Install a fuse [0.5A] in series between the DC power supply [+] and the MS-80S connection as shown below for over current protection. Power supply fuse[0.5A] DC12V Data collection device SDI-12 Fig. 5-3G. How to connect MS-80S Pg. 17 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 19 Also see 7-3. Output Cable for cable arrangements. DC-12V+ Slave SDI-12 Data Data collection No.n Ground Device Slave Slave Slave No. 3 No.1 No.2 Figure 5-5. Communication Connection with SDI-12 Pg. 18 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 20 Figure 5-6. Connector pin number of MS-80/80S ach number corresponds to the number in Table 5-4. There is no corresponding figure for MS-80U because the cable can’t be removed from MS-80U body. Pg. 19 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 21 The maximum output voltage can be calculated by multiplying the maximum solar irradiance with the calibration factor [e.g. when the sensitivity of the MS-80 pyranometer is about 10μV/W・m 0.010mV/W・m , the maximum output voltage is about 1,400W/m times 0.010mV/W・m...
  • Page 22 EKO. The recommended sampling rate for pyranometers is smaller than τ. So, for EKO pyranometers, the sampling rates that have to be programmed in the data logger systems should not exceed the values as given in Table 7-1.

  • Page 23: Maintenance And Troubleshooting

    6. Maintenance & Troubleshooting 6- 1. Main te na nc e Using the EKO pyranometers accurate results can be obtained if the glass dome and the condition of the instrument are maintained properly. Furthermore, regular maintenance and scheduled re-calibrations can extend the lifetime of EKO pyranometers.
  • Page 24 Any change in tilt position after the For the S-series with Modbus output installation affect Data Weekly check the tilt position. measurements due to the cosine response of the sensor. Pg. 23 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...

  • Page 25: Calibration Method

    6- 2. Cali br ati on an d M eas u rem e nt Unc e rtaint y It is recommended to recalibrate MS-80 pyranometer once every 5 years in order to verify the good quality of the solar radiation measurements. Below explains about the calibration methods of EKO pyranometers and their calibration uncertainty.
  • Page 26 6- 3. Tro ubl es h ooti n g Read the following in case of any sensor trouble. If any questions should remain, please contact EKO for further technical support. Table 6-3. Troubleshooting Failure Action Make sure that the sensor cable is connected properly to the instrument.

  • Page 27: Pyranometer Specifications

    7- 1. Spec ific ati ons 1. Pyranometer Specifications The comparison table below, Table 7-1, shows typical values for the characteristic parameters of the EKO Pyranometers and the corresponding values of the ISO 9060: 2018 standard. The content of the characteristic item is partly changed from ISO 9060: 1990.
  • Page 28 Sensor setting can be changed by connecting the sensor to a PC (Use the optional RS-485 to USB converter cable and download the free configuration software from the WKO website Pg. 27 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 29 72 mm C. Levelling Screw Height 16 mm Φ96 mm D. Width [including Sunscreen/Cover] 101mm E. Overall Height [approx.] Figure 7-1. Outer Dimensions [MS-80 / 80S] Pg. 28 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 30 A. Fixing Hole Pitch 65 mm B. Body Height 50 mm C. Levelling Screw Height 16 mm Φ78 mm D. Width Figure 7-2. Outer Dimensions [MS-80U] Pg. 29 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 31 PC with USB terminal * The standard cable length is 10m *The setting can be changed with the 485 / USB conversion cable and dedicated software. Pg. 30 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 32 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. Pg. 31 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 33 [ISO 9060: 2018 added] Error generated when converting the analog output of Pyranometer processing errors or Pyrheliometer into a digital signal with a signal converter etc. Pg. 32 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...

  • Page 34: Software Installation

    A- 3. Co nfig u ra to r Soft wa re [MS - 80S ] With the dedicated software which can be downloaded from the EKO website and optional communication cable for converter setting, configurations can be changed. 1. Software Installation Install the special configurator software according to the following procedure Download the latest version “SensConf.zip”...
  • Page 35 Fig. A-4. Query Success 3] Main window open. 4] When “Read Memory” is pressed, configurations are read from the MS-80S memory and displayed on the window. Pg. 34 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 36 Manufacturing date information [cannot be changed] Product serial number [cannot be changed] Name Product name [cannot be changed] Calibration Date/ Product calibration date, sensitivity [cannot be changed] Pg. 35 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 37 Reads the configuration from the file. The file name is “XXX.xml” Load File Writes the current configuration to the file. The file name is “XXX.xml” Save File COM Setting Opens the communication setting window. Pg. 36 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 38 With code, 16 bit integer value UINT32 Without code,32 bit integer value SINT32 With code,32 bit integer value FLOAT32 IEEE754 32bit Single precision floating point A string[ASCII Code] Pg. 37 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 39 109, 110 Calibration value of analog input setting FLOAT32 9 types in combination of amplifier type and range 127, 128 129, 130 FLOAT32 Pt100 Calibration value Pg. 38 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 40 Calibration history 0[Sensitivity [μV/W/m 188, 189 Calibration history 1[Calibration date,YYYYMMDD UINT32 type] 190, 191 FLOAT32 Calibration history 1[Sensitivity [μV/W/m 192, 193 Calibration history 2[Calibration date,YYYYMMDD UINT32 type] Pg. 39 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 41 The last 2 digits of the product serial number is setup as address number in default. Ex.] S/N SXXXXXX05: Address = 5, S/N SXXXXXX00: Address = 100 [when “00”, the address is ”100”] Pg. 40 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 42 Pt100 offset can be corrected by ratio [“1” = 100%, no correction] Analog Output Calibration Value [Address Number: 131, 132] Correction value for analog output power Pg. 41 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 43 [a: Address 164/165, b: Address 166/167, c: Address 168/169, d: Address 170/171] Default Value {a: 1、b: 0、c: 0、d: 0} Setting that does not use temperature correction. Pg. 42 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 44 Conversion example: Data conversion of Model name [Address No.156 to No.163] ＿ ＿ ＿ ＿ ＿ ＿ ＿ ＿ ＿ ＿ ＿ Conversion result: MS-80 Address No. MS-80S Output Data Conversion result Pg. 43 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 45 Next, calculate the data before conversion according to the IEEE754 standard. Conversion result: 820.52 [W/m2] Address No. Output Data Pre-conversion 444D2147 data Conversion result 820.52 Pg. 44 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 46 The device will return the W/m value. * Example of response by "al!" Command: “a18EKOMS-80vvvxx…xx<CR><LF>” EKO: Manufacturer, MS-80: Model name, vvv: Version number [3 digits], xxxxxxx: Serial Number Pg. 45 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 47 A- 6. Rec alib ra tio n When MS-80 is calibrated at an external calibration laboratory, in practice slight differences can be expected relative to the MS-80 manufacturer calibration scale and lab-scale. A difference in the calibration measurement results can be explained by the differences with respect to the method of calibration, reference sensors, sensor characteristics and measurement conditions.
  • Page 48 11770 3758 43110 11290 3629 41070 10840 3504 39140 10410 3385 37310 10000 3270 35570 9605 3160 33930 9227 3054 32370 8867 2952 30890 8523 2854 Pg. 47 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 49 108.2 119.8 96.9 108.6 120.2 97.3 109.0 120.6 97.7 109.3 120.9 98.0 109.7 121.3 98.4 110.1 121.7 98.8 110.5 122.1 99.2 110.9 122.5 99.6 111.3 122.9 Pg. 48 EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 4...
  • Page 50 EKO Asia, Oceania 1-21-8 Hatagaya, Shibuya-ku, Tokyo 151-0072 Japan P. +81.3.3469.6711 F. +81.3.3469.6719 info@eko-asia.com www.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,...

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Ms-80sMs-80u