EKO MS-56 Instruction Manual Download Page 25

EKO INSTRUMENTS CO., LTD. MS-56 Pyrheliometer Manual Ver.5

 

Pg. 24 

 

A - 2 .  T h e r m i s t o r  Te m p e r a t u r e   C o n v e r s i o n   Ta b l e    

Table A-2 Temperature Conversion table for the Thermistor (44031, 10k

Ω@25

 

 

 

 

T [°C] 

R [Ω] 

T [°C] 

R [Ω] 

T [°C] 

R [Ω] 

-30 

-29 

-28 

-27 

-26 

-25 

-24 

-23 

-22 

-21 

-20 

-19 

-18 

-17 

-16 

-15 

-14 

-13 

-12 

-11 

-10 

-9 

-8 

-7 

-6 

-5 

-4 

-3 

-2 

-1 

135200 

127900 

121100 

114600 

108600 

102900 

97490 

92430 

87660 

83160 

78910 

74910 

71130 

67570 

64200 

61020 

58010 

55170 

52480 

49940 

47540 

45270 

43110 

41070 

39140 

37310 

35570 

33930 

32370 

30890 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

29490 

28150 

26890 

25690 

24550 

23460 

22430 

21450 

20520 

19630 

18790 

17980 

17220 

16490 

15790 

15130 

14500 

13900 

13330 

12790 

12260 

11770 

11290 

10840 

10410 

10000 

9605 

9227 

8867 

8523 

30 

31 

32 

33 

34 

35 

36 

37 

38 

39 

40 

41 

42 

43 

44 

45 

46 

47 

48 

49 

50 

51 

52 

53 

54 

55 

56 

57 

58 

59 

8194 

7880 

7579 

7291 

7016 

6752 

6500 

6258 

6026 

5805 

5592 

5389 

5193 

5006 

4827 

4655 

4489 

4331 

4179 

4033 

3893 

3758 

3629 

3504 

3385 

3270 

3160 

3054 

2952 

2854 

Summary of Contents for MS-56

Page 1: ......

Page 2: ...s 5 4 Introduction 6 4 1 Introduction 6 4 2 Content of Delivery 7 5 Getting Started 8 5 1 Parts Descriptions 8 5 2 Setup 9 5 3 Operation 14 6 Maintenance Troubleshooting 15 6 1 Maintenance 15 6 2 Cali...

Page 3: ...ion www eko usa com info eko usa com EKO INSTRUMENTS USA Inc 95 South 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 warranty terms...

Page 4: ...nts Disposing of this product correctly will help save valuable resources and prevent any potential negative effects on human health and the environment which could otherwise arise from inappropriate...

Page 5: ...harmonized standards of other normative documents Harmonized standards EN 61326 1 2006 Class A Emission EN 61326 1 2006 Immunity EN 61000 4 2 EN 61000 4 3 EN 61000 4 4 EN 61000 4 5 EN 61000 4 6 EN 610...

Page 6: ...manual thoroughly to be able to operate the instrument safely in the correct manner WARNING CAUTION Attention to user pay attention to the instructions given on the instruction manual with this sign 3...

Page 7: ...s a unique fast response time 1s 95 high sensitivity excellent thermal stability and very low temperature coefficient to make it hardly immune to ambient temperature variations therefore it is suitabl...

Page 8: ...LTD MS 56 Pyrheliometer Manual Ver 5 Pg 7 4 2 Content of Delivery Check the package contents first if any missing item or damage is noticed please contact EKO immediately Figure 4 1 Package Contents S...

Page 9: ...Although the MS 56 dimensions are relatively small it has a full 5 opening angle and 1 slope angle geometry The front aperture has a unique integrated alignment sight for easy and precise alignment o...

Page 10: ...of the mounting plate If the mounting plate is the 2 hole version it is necessary to replace with 3 hole version See following 2 How to Replace Mounting Plate Optional 2 Remove the knurling nut from...

Page 11: ...lectrical Connection Prepare the following tool for installation One Allen Key 2 5 for M3 screw How to Replace 1 Remove the 4 fixing screws M3 x 15mm which are securing the X Y Axis adjustment unit on...

Page 12: ...3 x 15mm on X Y Axis adjustment unit then detach the X Y Axis adjustment unit from the mounting plate 4 Remove 2 fixing screws M3 x 15mm for mounting plate Detach the mounting plate from the Sun Track...

Page 13: ...Check to make sure all the screws are placed back in their positions 3 Electrical Connection In order to measure the solar irradiance the MS 56 should be connected to a measurement device in most case...

Page 14: ...lded cable is connected to the data logger ground the pyrheliometer should be electrically isolated from the sun tracker system or the sun tracking system should not be connected to ground 4 Sight Spo...

Page 15: ...xpression I W m 2 Direct Normal Incidence solar irradiance E V Output voltage of the sensor S V W m 2 Sensitivity Indicated on the calibration certificate 2 Calculate Direct Horizontal Incidence Solar...

Page 16: ...l conditions affected by Rain Snow Ice Dust Sand or Salt Environmental factors like frequent rain fall can also have a positive effect on cleaning by washing off any sand or dust particles For specifi...

Page 17: ...e to reddish color Pyrheliometer alignment Check sights for alignment When the sight spot cannot be confirmed clean the through hole with a pin to remove the water and or dirt Recalibration Every 2 ye...

Page 18: ...rect irradiance data To improve the calibration accuracy and minimize the measurement uncertainty several operating criteria are applied 2 Calibration Uncertainty and Traceability The criteria for the...

Page 19: ...problem found from the above check the output with another measurement device to make sure the actual data logger or measurement device is functioning properly The sensor signal is unrealistically hi...

Page 20: ...Non Stability Change per year 0 5 1 0 5 Expected Daily Uncertainty 1 1 Irradiance Range 0 2000W m 2 Spectral Range FWHM 200 4000nm Sensitivity Approx 10 V W m 2 Detector Impedance 25 C Approx 5 kOhms...

Page 21: ...g a low heat capacitance and high thermal conductivity responds quickly to changes of the solar radiation To keep the detector output stable and in perfect thermal balance during changing environmenta...

Page 22: ...hly stable 1000 W m 2 light source 0 3 variance during total measurement sequence is used With each MS 56 measurement report Temperature Dependency Test Report is issued indicating the measured temper...

Page 23: ...Accessories Table 7 2 Accessories List Accessories Details Cable Length 20 30 40 50m STR 21 22 Mounting Jigs Fixing Ring Mounting Plate 3 holes Drying Cartridge Drying Cartridge Replacement Silica Gel...

Page 24: ...Pyrheliometer Manual Ver 5 Pg 23 APPENDIX A 1 Symbols Table A 1 Definitions of Symbols List of symbols Definitions Units E Output Voltage V S Sensitivity V W m 2 t Time s Response Time s T Temperatur...

Page 25: ...8010 55170 52480 49940 47540 45270 43110 41070 39140 37310 35570 33930 32370 30890 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 29490 28150 26890 25690 24550 23460 2...

Page 26: ...96 5 96 9 97 3 97 7 98 0 98 4 98 8 99 2 99 6 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 100 0 100 4 100 8 101 2 101 6 102 0 102 3 102 7 103 1 103 5 103 9 104 3 10...

Page 27: ......

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