Kipp & Zonen CSD1 User manual

INSTRUCTION MANUAL
Kipp
Zonen
&
0342 300
1
SUNSHINE DURATION METER

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IMPORTANT USER INFORMATION
Reading this entire manual is recommended for full
understanding of the use of this product.
The exclamation mark within an equilateral triangle is intended to alert the
user to the presence of important operating and maintenance instructions in
the literature accompanying the instrument.
Should you have any comments on this manual we will be pleased to
receive them at:
Kipp & Zonen B.V.
Röntgenweg 1 2624 BD Delft Holland
P.O. Box 507 2600 AM Delft Holland
Phone [phone]
Fax [phone]
E-mail [e-mail]
Kipp & Zonen reserve the right to make changes to the specifications without
prior notice.
WARRANTY AND LIABILITY
Kipp & Zonen guarantees that the product delivered has been thoroughly
tested to ensure that it 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 supplied by Kipp & Zonen.
Kipp & Zonen shall in no event be liable for incidental or consequential
damages, including without limitation, lost profits, loss of income, loss of
business opportunities, loss of use and other related exposures, however
caused, arising from the faulty and incorrect use of the product.
User-made modifications can affect the validity of the CE declaration.
COPYRIGHT©2003 KIPP & ZONEN
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted in any form or by any means, without
permission in written form from the company.
Manual version 0104

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DECLARATION OF CONFORMITY
According to EC guideline 89/336/EEC
We Kipp & Zonen B.V.
Röntgenweg 1
2624 BD Delft
declare under our sole responsibility that the product
Type: CSD 1
Name: SUNSHINE DURATION SENSOR
to which this declaration relates is in conformity with the following standards
Imissions EN 50082-1 Group standard
IEC 100-4-2 IEC 801-2 8 kV
IEC 100-4-3 IEC 801-3 3 V/m
IEC 100-4-4 IEC 801-4 1 kV
Emissions EN 50081-1 Group standard
EN 55022
following the provisions of the directive
R.E. Ringoir
Product management
KIPP & ZONEN B.V.

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TABLE OF CONTENTS
IMPORTANT USER INFORMATION............................................................3
DECLARATION OF CONFORMITY .............................................................5
TABLE OF CONTENTS................................................................................ 7
1. GENERAL INFORMATION.....................................................................9
1.1 USING THE CSD 1 ..........................................................................................9
1.2 THE MINIMUM NECESSARY REQUIREMENTS.......................................... 11
1.3 INSTALLATION .............................................................................................. 11
1.4 MEASUREMENT OF SUNSHINE DURATION .............................................. 14
1.5 MEASUREMENT OF DIRECT RADIATION ..................................................15
1.6 USING THE HEATER .................................................................................... 15
1.7 CALIBRATION & QUALITY CONTROL ......................................................... 15
1.8 MAINTENANCE ............................................................................................. 16
1.9 OPTICAL THEORY ........................................................................................ 16
2. PROPERTIES OF CSD 1 ...................................................................... 19
2.1 SPECIFICATIONS OF THE SUNSHINE DURATION MEASUREMENT....... 19
2.2 SPECIFICATIONS OF THE DIRECT RADIATION MEASUREMENT ........... 19
2.3 SPECIFICATIONS OF THE HEATER............................................................ 20
3. TROUBLE SHOOTING .........................................................................21
4. ADJUSTMENT OF THE CALIBRATION FACTOR...............................23
5. DELIVERY.............................................................................................27
6. SPARE PARTS .....................................................................................29
7. ELECTRICAL DIAGRAMS ...................................................................31
8. RECALIBRATION SERVICE ................................................................ 33

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1. GENERAL INFORMATION
CSD 1 is a sensor for measurement of sunshine duration. The sunshine
duration is defined as the time during which the direct solar radiation
exceeds the level of 120 W/m².
CSD 1 can also supply a derived value of the level of direct radiation.
CSD 1 was designed for use in agricultural meteorology (evaporation), for
tourist information (number of sunshine hours), for building automation
(automatic control of sunscreens), and for health resorts (climatology for
treatment and recovery).
One of the main features of CSD 1 is the built-in two-level heating, which
can remove dew, frost and even ice. In many applications this provides a
significant improvement in the reliability of the measurement.
CSD 1 employs 3 detectors, each covering part of the sky. The direct
radiation is calculated from the differences in signal levels.
Great care has been taken to design the angular characteristics of the
detector, resulting in a measurement that can be used anywhere on Earth in
a fixed position, and that minimises seasonal effects.
The three detectors have exactly the same spectral and angular
characteristics. This makes the process of recalibration very easy.
CSD 1 has no moving parts and low power consumption.
The following chapters will explain the various aspects of using CSD 1.
1.1 USING THE CSD 1
Using CSD 1 is easy. Figure 1.1 shows the dimensions. The unit must be
installed, using the mounting hole in the instrument arm. The sunny/not
sunny switched output for sunshine duration must be connected to a
recorder with a voltage input. If desired the continuous output of the
estimated direct radiation can be connected to another voltage recorder.
If the instrument is covered by dew, frost or snow, the measurement can be
improved by switching on the built-in heater.

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Typically the unit will run without attendance. Paragraphs 1.2 to 1.6 expand
upon the above.
CSD 1 should be regularly maintained and if possible be re-calibrated once
every year in order to check the instrument stability. These items are
addressed in 1.7 and 1.8.
More about the optical theory can be found in 1.9.
Figure 1.1 Dimensions of CSD 1