Kipp&Zonen CFR User Manual

CFR

Calibration Facility

Instruction Manual

1

IMPORTANT USER INFORMATION

Reading this entire manual is recommended for full understanding of
the use of this product.

Should you have any comments on this manual we will be pleased to
receive them at:

Kipp & Zonen B.V.
Delftechpark 36, 2628 XH Delft, The Netherlands
or P.O. Box 507, 2600 AM Delft, The Netherlands

T : [phone]
F : [phone]
E : [e-mail]
W : www.kippzonen.com

Kipp & Zonen reserves 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 used, rising from the faulty and incorrect use of the product.
User made modifications can affect the validity of the CE declaration.

COPYRIGHT© 2006 KIPP & ZONEN

All rights are 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.

2

Manual version: 0107

3

Declaration of Conformity

According to EC guideline 89/336/EEC

We Kipp & Zonen B.V.

Delftechpark 36
2628 XH Delft

Declare under our sole responsibility that the product

Type: CFR (version 230 VAC / 50Hz)
Name: Calibration Facility for Radiometers

To which this declaration relates is in conformity with the following
standard

Safety standard IEC 1010-1

Following the provisions of the directive.

B.A.H. Dieterink

President

KIPP & ZONEN B.V.

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Table of contents

IMPORTANT USER INFORMATION ............................................................................................................. 1

Declaration of Conformity ............................................................................................................................... 3

Table of contents ............................................................................................................................................ 4

1 Introduction .......................................................................................................................................... 5

2 Installation and operation ..................................................................................................................... 6

2.1 Delivery ................................................................................................................................................ 6

2.2 Installation ............................................................................................................................................ 7

2.2.1 Environmental conditions ................................................................................................................. 7

2.2.2 Mechanical and electrical set-up ...................................................................................................... 7

2.3 Maintenance ...................................................................................................................................... 10

2.3.1 Lamp .............................................................................................................................................. 10

2.3.2 Maintenance and recalibration of the reference pyranometer ........................................................ 10

2.3.3 Spare Parts Specification ............................................................................................................... 12

3 Calibration operation .......................................................................................................................... 13

3.1 Description of the procedure .............................................................................................................. 13

3.2 Description of the procedure step-by-step ......................................................................................... 15

3.3 Calibration uncertainty ....................................................................................................................... 16

3.3.1 Instability of the lamp output power ................................................................................................ 16

3.3.2 Pyranometer offsets ....................................................................................................................... 16

3.3.3 Voltmeter offset .............................................................................................................................. 17

3.3.4 Tilting of the pyranometers ............................................................................................................. 17

3.3.5 Differences in sensor height and geometry .................................................................................... 17

3.3.6 Calibration repeatability and overall uncertainty ............................................................................. 17

3.4 Calibration Form ................................................................................................................................ 18

4 Principle components and specifications of the facility ...................................................................... 19

4.1 Table .................................................................................................................................................. 19

4.2 Turntable ............................................................................................................................................ 19

4.3 Shading mechanism .......................................................................................................................... 20

4.4 Lamp mounting pillar ......................................................................................................................... 20

4.5 Lamp housing .................................................................................................................................... 20

4.5.1 115VAC/60 Hz Calibration Facility ................................................................................................. 20

4.5.2 230VAC/50 Hz Calibration Facility ................................................................................................. 20

4.6 Lamp bulb .......................................................................................................................................... 20

4.7 Voltage Stabilization .......................................................................................................................... 21

4.8 Voltmeter ........................................................................................................................................... 21

4.9 Switch and clamps ............................................................................................................................. 21

4.10 Reference pyranometer .................................................................................................................. 21

4.11 Mountings for other radiometers .................................................................................................... 22

4.12 Stopwatch ...................................................................................................................................... 22

5 Frequently asked questions ............................................................................................................... 23

Appendix I: Calibration Form for pyranometers .......................................................................................... 24

Appendix II: Pyranometer Classification According to WMO Guide 1996 ................................................... 25

Appendix III: List of World and Regional Radiation Centres ......................................................................... 26

Appendix IV:Recalibration service ................................................................................................................ 27

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1 Introduction

Dear customer, thank you for purchasing a Kipp & Zonen product. Please read this manual for a full
understanding of the use of your Calibration Facility.

The CFR Calibration Facility for Radiometers is designed for the calibration of pyranometers by comparison
to a reference pyranometer. As such, it offers a simple and traceable solution for quality control of the
stability of pyranometers used in a network.The procedure described complies with Annex A.3 to the
international standard ISO 9847 "Calibration of Field Pyranometers by Comparison to a Reference
Pyranometer". Annex A.3 is titled "Calibration Devices Using Artificial Sources".

This manual contains information related to the installation, operation, maintenance and calibration of both
the 230 VAC / 50 Hz and 115 VAC / 60 Hz versions of the CFR.

If any questions should remain, please feel free to contact your Kipp & Zonen dealer or e-mail

[e-mail]

For information about other Kipp & Zonen products or to check for any update of this manual, go to

www.kippzonen.com

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2 Installation and operation

2.1 Delivery

Check the contents of the shipment for completeness (see below) and note whether any damage has
occurred during transport. If there is damage, a claim should be filed with the carrier immediately. In this
case, or if the contents are incomplete, your dealer should be notified in order to facilitate the repair or
replacement of the product.

Contents of delivery:

• Table (including voltage stabilization for 230 VAC / 50Hz version), turntable, shading mechanism

• Lamp with power supply cable

• One spare bulb

• Lamp mounting pillar

• High accuracy voltmeter

• Accessories (stopwatch, cables, tools for installation)

• Manual (2 copies)

• Optional: reference pyranometer(s) with calibration certificate(s)

• Optional: mountings for other Kipp & Zonen radiometers

• Optional: mountings for pyranometers produced by other manufacturers.

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2.2 Installation

2.2.1 Environmental conditions

To perform accurate calibrations the calibration facility should preferably be installed in a separate room
with temperature controlled and ventilated environment and without spurious light reflections coming from
walls and other objects (ideally a dark-room). Kipp & Zonen reference pyranometers are calibrated at
approximately + 20 ºC, therefore it is strongly recommended to maintain similar environmental conditions.

2.2.2 Mechanical and electrical set-up

The calibration facility must be built up in the following order. The step-by-step procedure is illustrated in
the figures below.

Step 1 Mount the lamp pillar on the table and tightly secure it with the 4 countersunk bolts. The limit cam
should be visible at the front side of the lamp pillar.

figure 1 Calibration table with lamp pillar

Step 2 Slide the lamp mounting bracket over the lamp pillar and place the white clamping disk inside the
bracket.

figure 2 Lamp mounting bracket slid over the lamp pillar

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Step 3 Remove the mains plug from the lamp housing power cable (if fitted) and pass the cable through
the lamp mounting pillar and cable gland.

figure 3 Lamp cable passed trough the lamp pillar

Step 4 Electrical connection of the lamp to the voltage stabilizer

115 VAC / 60 Hz Calibration Facility

The 115 VAC / 60Hz version of the CFR has all the electronic components for powering the bulb integrated
into the lamp housing. Re-fit the plug and connect directly to a suitable mains outlet socket. Connect the
voltmeter power cable to a suitable mains outlet socket.

230 VAC / 50 Hz Calibration Facility

Connect the lamp power cable to the voltage stabilization unit, as shown in figure 4. Fit the metal cover
and connect the voltage stabilizer and voltmeter power cables to suitable mains outlet sockets.

figure 4 Cable wires connected to the voltage stabilizer terminals

Warning: To prevent electric shock during installation, all electrical devices
must be disconnected from the mains power.

Label

Function

Cable

Wire color

1 in

Neutral

Mains

Blue

2 in

Phase 230 VAC

Mains

Brown

Protective Earth

Mains

Yellow/Green

Earth

Table

Yellow/Green

3 out

Neutral / Earth

Lamp

Blue and
Yellow/Green

4 out

Phase 230 VAC

Lamp

Brown

5 out

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