Kipp&Zonen UVS-E-T User Manual

Instruction Manual

UV Radiometers

UVS series

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 Holland
P.O. Box 507 2600 AM Delft Holland
Phone [phone]
Fax [phone]
Email [e-mail]
Web www.kippzonen.com

Kipp & Zonen reserve the right to make changes to the
specifications without prior notice.

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 in correct use of the product.
User made modifications can affect the validity of the CE
declaration.

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.

WARRANTY AND LIABILITY

©

COPYRIGHT

2007 KIPP & ZONEN

Manual version: 0712

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DECLARATION OF CONFORMITY

According to EC guideline

89/336/EEC 73/23/EEC

We Kipp & Zonen B.V.

Of Delftechpark 36

2628 XH Delft
The Netherlands

Declare under our sole responsibility that the products
Types: UVS-A-T, UVS-B-T, UVS-E-T, UVS-AB-T, UVS-AE-T

Name: UV Radiometer
To which this declaration relates is in conformity with the

following standards
Imissions EN 50082-1 Group standard

Emissions EN 50081-1 Group standard
EN 55022

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 2
DECLARATION OF CONFORMITY 3
TABLE OF CONTENTS 4

1. GENERAL INFORMATION 5

1.1 INTRODUCTION 5
2 TECHNICAL DATA 7
3 INSTALLATION 8

3.1 PIN CONNECTIONS OF ALL UV VERSIONS 9
4 CALIBRATION AND UVIATOR SOFTWARE 12

4.1 UV RADIOMETER CALIBRATION AND CORRECTION
METHOD 13

4.1.1 CALIBRATION STEP A: 14
DETERMINATION OF THE RADIOMETRIC 14
CALIBRATION FACTOR 14

4.1.2 CALIBRATION STEP B: 16
DETERMINATION OF THE CONVERSION 16
FACTOR TABLE 16

4.2 ADJUSTMENT STEP: 17
UVIATOR CORRECTION METHOD 17
5 MAINTENANCE AND RECALIBRATION 19
6 PART NUMBERS, OPTIONS AND SPARES 20
APPENDIX I: 21
ERYTHEMAL ACTION SPECTRUM ACCORDING TO CIE

1987 (DIN 5050) 21

APPENDIX II: 22
CONVERSION OF OUTPUT VOLTAGE FOR INTERNAL

TEMPERATURE 22

APPENDIX III: RECALIBRATION SERVICE 23

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1. GENERAL INFORMATION

1.1 INTRODUCTION

The radiometers of the UVS Series (UVS-A-T, UVS-B­T, UVS-E-T, UV-S-AB-T and UVS-AE-T) are designed
for precise measurements of atmospheric ultraviolet
radiation in three different spectral ranges. All models
measure global UV radiation, i.e. the sum of direct
solar radiation and the radiation which has been
scattered by particles or molecules in the air. The
angular response follows the cosine of the zenith angle
as with an ideal Lambertian surface.

The internal filter optics, detector and electronic
preamplifier of the UVS Series are thermo-electrically
controlled at a temperature of +25°C, independent of
the external temperature. This eliminates variations of
the spectral sensitivity caused by changing ambient
temperatures. In order to allow monitoring of the
internal temperature, an analog voltage output is avai­lable, generated by an independent control circuit.

The spectral sensitivity of the UVS-E-T corresponds to
that of the human skin with regard to the Erythemal
Action Spectrum ISO 17166:1999 / CIE S 007/E-1998.
This is the response required by the United Nations,
World Health Organisation and World Meteorological
Organisation for measurement of radiation according to
the Global Solar UV Index (UVI). The analog output
voltage is a direct measure of the erythemally active
UV irradiance in W/m
expressed in UV Index by multiplying with the constant

2

/W.

40 m
The UVS-A-T and UVS-B-T radiometers allow precise

measurements of atmospheric UV-A and UV-B
irradiance. The analog output voltage is proportional to
the irradiances in W/m

2

. This irradiance can also be

2

.

5

The dual band radiometers UVS-AB-T and UVS-AE-T
have two separate outputs, one for the UV-A band
irradiance and one for UV-B band irradiance (UV-S­AB-T), or one for UV-A and one for the Erythemally
Active UV irradiance (UVS-AE-T). The spectral and
angular characteristics correspond to those of the
respective single band radiometers.

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2 TECHNICAL DATA

Optical

Type Single band Dual band

UVS-A-T UVS-B-T UVS-E-T UVS-AB/AE-T

UV irradiance
measured

Nominal
spectral
response

Response at
> 400 nm

Cosine
response

Electrical

Nominal output
0 - 3 Volt

Output of
internal

Operating
temperature

Power supply 7-18 VDC, 8 W

Mechanical

Materials
Connector Binder 712 Series, 8 pole

Height
Diameter

Weight < 1 kg

UV-A UV-B

315-400

nm

< 2.5% between 0°and 70° solar zenith angle

0 – 90

W/m

- 40 °C to + 50 °C, reduced specification

Housing: protected aluminium, polyester coated

280-

315 nm

2

0 – 6

W/m2

2.5 V ~ 25 °C (see Appendix II)

- 25 °C to + 50 °C, full specification

Dome: UV-grade quartz

Erythemally

Active UV-E

ISO

17166:1999

/ CIE S

007/E-1998

< 0.1% of output

0 – 0.6

W/m2

145 mm
122 mm

UV-A + UV-B
UV-A + UV-E

See individual

radiometers

See individual

radiometers

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3 INSTALLATION

When installing the radiometer you must consider:

1. The radiometer should be installed as high as
possible to minimize obscuration by trees, buildings,
etc. This includes the obscuration of the indirect,
scattered radiation coming from the whole upper
hemisphere. A large portion of the received UV
radiation does not reach the radiometer directly
from the sun, but is scattered by molecules and
particles. Ideally the view should be clear to the
horizon in all directions.

2. The radiometer should be carefully levelled in the
horizontal plane. Use the built-in spirit level to find
the correct position.

3. The installation of the radiometer must ensure
natural ventilation to reduce heating of the housing
caused by solar radiation and electrical power
dissipation. If the housing becomes too hot,
damage may occur.

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