Kipp & Zonen CVF4 User manual

CVF4 Ventilation Unit
Instruction Manual
Revision March 2014

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Instruction Manual - CVF4

WARRANTY ANDASSISTANCE
This equipment is warranted by CAMPBELL SCIENTIFIC (CANADA) CORP. ("CSC") to
be free from defects in materials and workmanship under normal use and service for
twenty-four (24) months from date of shipment unless specified otherwise. *****
Batteries are not warranted. ***** CSC's obligation under this warranty is limited to
repairing or replacing (at CSC's option) defective products. The customer shall assume
all costs of
removing, reinstalling, and shipping defective products to CSC. CSC will
return such products by surface carrier prepaid. This warranty shall not apply to any
CSC products which have been subjected to modification, misuse, neglect, accidents of
nature, or shipping damage. This warranty is in lieu of all other warranties, expressed or
implied, including warranties of merchantability or fitness for a particular purpose. CSC
is not
liable for special, indirect, incidental, or consequential damages.
Products may not be returned without prior authorization. To obtain a Return
Merchandise Authorization (RMA), contact CAMPBELL SCIENTIFIC (CANADA) CORP.,
at [phone]. An RMA number will be issued in order to facilitate Repair Personnel
in identifying an instrument upon arrival. Please write this number clearly on the outside
of the shipping container. Include description of symptoms and all pertinent details.
CAMPBELL SCIENTIFIC (CANADA) CORP. does not accept collect calls.
Non-warranty products returned for repair should be accompanied by a purchase order to
cover repair costs.

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Instruction Manual - CVF4
Dear customer, thank you for purchasing a Kipp & Zonen product. It is essential that you read this manual completely for a full
understanding of the proper and safe installation, use, maintenance and operation of your new CVF4 Ventilation Unit.
We understand that no instruction manual is perfect, so should you have any comments regarding this manual we will be
pleased to receive them at:
Kipp & Zonen B.V.
Delftechpark 36, 2628 XH Delft, - or
P.O. Box 507, 2600 AM Delft,
The Netherlands
T: [phone]
F: [phone]
[e-mail]
www.kippzonen.com
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 incurred, arising from the incorrect
use of the product.
Modifications made by the user may affect the instrument performance, void the warranty, or affect the validity of the CE
declaration or other approvals and compliances to applicable International Standards.
Copyright © 2014 Kipp & Zonen B.V.
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 authorisation by Kipp & Zonen.
Kipp & Zonen reserves the right to make changes to this manual, brochures, specifications and other product documentation
without prior notice.
Manual document number: V1403
Publication date: 1st March 2014
Important User Information

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Instruction Manual - CVF4

Instruction Manual - CVF4
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We Kipp & Zonen B.V.
Delftechpark 36, 2628 XH Delft
P.O. Box 507, 2600 AM Delft
The Netherlands
Declare under our sole responsibility that the products:
Models CVF4
Type Ventilation Unit
to which this declaration relates are in conformity with European Harmonised Standards as published in:
Official Journal of the EC, Issue: 89/336/EEC 73/23/EEC
The compliance of the product has been based on:
Emissions EN 61326-1:2000
Immunity EN 61326-1:2000
Safety EN 61010-1:2001
Radio part NA
following the provisions of the directives (if applicable):
EMC-directive 2004/108/EC
Electrical safety 2005/65/EC
Following the provisions of the directive.
Delft, 1st March 2014
B.A.H. Dieterink
President
Kipp & Zonen B.V.
Declaration of Conformity

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Instruction Manual - CVF4

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Table of Contents
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Important User Information
Declaration of Conformity
Table of Contents
1 Introduction
1.1 CVF4 top side
1.2 CVF4 bottom side
2 Installation
2.1 Included with the product
2.2 Tools required
2.3 Preparation
2.4 Installation procedure
2.5 Electrical connections
3 Accessories
3.1 Spare CVF4 filters
3.2 Power supply
3.2.1 CVP 1
3.2.2 CVP 2
3.3 CMF4 Mounting Fixture
3.4 CMB 1 Mounting Bracket
3.5 Adapter for use of the CVF4 in the CM 121C shadow ring
4 Maintenance
5 Specification
5.1 Optical and electrical
5.2 Dimensions and weight
6 Trouble shooting
7 Customer support
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Using this table
Click on any item in the table of contents to be taken directly to the relevant page.
Click on the Kipp & Zonen logo at the bottom of any page to be taken back to the table of contents.

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Instruction Manual - CVF4

Instruction Manual - CVF4
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This manual will show you how to install, use and maintain the CVF4 Ventilation Unit. The CVF4 is meant for ventilating solar
radiation sensors with the purpose to keep the mounted radiometer window or dome clean from dew, precipitation and
pollution. It can be used outdoors under all-weather conditions. The CVF4 has a built in heater to keep the air just above
ambient temperature.
Both the World Meteorological Organisation (WMO) and the Baseline Surface Radiation Network (BSRN) guidelines advise using
a ventilator to optimise the performance of radiometers in general.
The use of the CVF4 will:
- Increases the maintenance interval.
- Increase the accuracy of the measured data (cleaner dome / window)
- Reduce the zero offset of the radiometer.
The CVF4 is meant for all CM, CMP, SMP, CG, CGR and CUV radiometers. However with the CMP 3 and SMP3 and CGR 3 the
ventilation effect will be less due to the larger opening around the dome. The CVF4 is meant to run continuously. The heater can
either be switched on permanently for cold regions or be switched by a data logger or clock to remove dew in the morning and
be switched off afterwards. In that case the heater is operated from a 2 hours before sunrise to an hour after sunrise. This saves
power in situations where power is limited such as PV operated sites.
This manual, together with the instruction sheet, give information related to installation, maintenance, product specifications
and trouble shooting of the CVF4.
If any questions should remain, please feel free to contact your Kipp & Zonen dealer or e-mail: inf[email protected].
For information about other Kipp & Zonen products or to check for any update of this manual, go to www.kippzonen.com.
1. Introduction

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Instruction Manual - CVF4
1.1 CVF4 top side
Ventilator
Heater
Mounting holes CMP 3, SMP3 and CGR 3
Mounting holes all other instruments
Connector
Cover nut
Slit for radiometer cable
1.2 CVF4 bottom side
Filter cover
Connector box
Mounting feet for SOLYS 2 / Feet for stabilisation
Feet for stabilisation / Mounting feet for 2AP
Mounting holes for mounting feet on CM 121C shadow ring adapter
Cover nut
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Instruction Manual - CVF4
The CVF4 consists of:
- Base plate with ventilator, heater and connector
- Replaceable filter plus cover
- Top cover
2.1 Included with the product
The following items are included with the CVF4 ventilation unit:
Ventilation Unit
Cable, pre-wired with 4 pins connector or connector only for customer cable
Fixing kit with screws, washers and Allan key
Instruction sheet
Pack of 5 spare ventilation fan inlet filters
Product Documentation CD
For optional accessories see chapter 3.
2.2 Tools required
If the CVF4 is mounted with the supplied screws only the supplied Allan key is required. Make sure there is space to fasten the
screw under the bottom of the plate. To fasten the radiometers other Allan keys or screwdrivers may be necessary.
2.3 Preparation
Like for any radiometer with 360° field of view, make sure there are no obstructions that are higher than ten times their distance
when selecting a location for the CVF4.
2. Installation
h>10 x h
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1356

Ø 7 mm (2x)
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Instruction Manual - CVF4
2.4 Installation procedure
First the CVF4 is screwed flat on its mounting plate. In case the CVF4 is mounted on a solar tracker, the tracker has to be levelled first.
On our sun trackers the CVF4 is positioned such that the fan sticks out over the edge of the plate. This ensures the air inlet is
never blocked (see picture of the CVF4 on the SOLYS 2 Sun Tracker on the next page). The locations of the CVF4 mounting holes
on the SOLYS 2 top mounting plate are shown below.
When using your own mounting plate, make sure the CVF4 is mounted in the same way with the fan sticking out. The CVF4
mounting holes size and distances are indicated in the drawing below.
The CVF4 is mounted with the supplied 4 washers and 2 screws through mounting plates from 4 to 8 mm thick. The other 2 feet
are for stability but do not need screws.
CVF4 mounting holes

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Instruction Manual - CVF4
Then the radiometer is mounted in the CVF4 and levelled with its own levelling feet. Afterwards the radiometer mounting screws
and shoulder washers are fitted (not secured yet).
In case the CVF4 is mounted on a solar tracker, finish the alignment of the tracker first before securing the radiometer screws
because tracker (and radiometer) levelling might need re-adjustment.
After all mounting screws have been secured the cables of the CVF4 and the radiometer can be connected. The radiometer cable
goes (down) through the slit in the CVF4 base plate.
Finally the CVF4 cover can be put on and the two cover nuts can be fastened.
Make sure the cover is horizontal (check equal space around the radiometer dome) and the two cover nuts are fastened hand tight.
SOLYS 2 with top mounting plate and 3 x CVF4 SOLYS 2 with small top mounting plate with CVF4

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Instruction Manual - CVF4
2.5 Electrical connections
The CVF4 has a 4 wire cable for connecting the 12 VDC to the ventilator and heater. The ground is common for the ventilator,
heater and the tacho output.
The tacho output (Ut in diagram below, pin 4, yellow wire) provides a 5 Volt signal that gives two pulses per revolution. It can
be connected to a data logger to (remotely) check proper operation of the CVF4. The tacho output uses the same power supply
ground (pin 3, green wire).
The nominal speed is 4400 rpm, resulting in 8800 pulses per minute which equals 146 Hz on the tacho output.
Changes often indicate pollution of the filter (higher frequency), or mechanical problems with ventilator (lower frequency).
If sufficient power is available it is advised to use the heater in combination with the ventilator even in warm climates. The
heater will prevent deposition of dew in the morning.
VENTILATION UNIT CONNECTION
ANSCHLUSS • RACCORDEMENT • CONEXIÓN
Ground
Erde
Terre
Tierra
Red + Ventilator
Rot • Rouge • Rojo + Ventilator
+ Ventilateur
+ Ventilador
Wire
Kabel
Fil
Cable
Function
Funktion
Fonction
Función
Yellow
Gelb • Jaune • Amarillo
Connect with
Anschluss an
Relier à
Conectar con
Housing
Gehäuse
Boîte
Cubierta
Shield
Abschirmung
Protection
Malla
1
4
Green
Grün • Vert • Verde
3
Blue + Heater
Blau • Bleu • Azul + Heizung
+ Chauffage
+ Calentador
+12 VDC @ 0.5 A
5 V tacho output
+12 VDC @ 0.4 A
+ Hi
2
Power supply 12 VDC ground, tacho ground
Spannungsversorgung
Alimentation
Fuente de alimentación
Erde
Terre
Tierra
* Connect to ground if radiometer not grounded
Mit Erde verbinden, wenn das Radiometer nicht geerdet ist
Reliez à la terre si le radiomètre n'est pas connecté
Conectar a tierra si el radiómetro no lo está
VENTILATOR
1
2
3
4
R1
R2
R2
+12 Volt
0 Volt
R1 Ut

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Instruction Manual - CVF4
3. Accessories
3.1 Spare CVF4 filters
Article number 2682047
Set of 5 spare ventilation fan inlet filters.
3.2 Power supply
Two optional 12 VDC power supplies are available for outdoor (CVP 1) and indoor (CVP 2) use.
3.2.1 CVP 1
Article number 0357700
The CVP 1 is a waterproof (IP 65) power supply for outdoor use with 12 VDC @ 3.5 A output.
The input is wide range 100 to 240 VAC, 50 or 60 Hz.
3.2.2 CVP 2
Article number 0349401
This is a 12 VDC, 2.5 A power supply for indoor use with a wide VAC input range of 110 to 230 VAC, 50 or 60 Hz. It comes with
universal mains power plugs for Europe, UK, USA and Australia.
The DC output cable from the power supply unit are stripped and tinned wires, marked with a red sleeve on the + wire.

CMF4
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Instruction Manual - CVF4
3.3 CMF4 Mounting Fixture
Article number 0362703
The CMF4 consists of a mounting plate plus rod. It can be used for one CVF4, looking up or 2 CVF4’s where one is looking down.
This allows for highly accurate albedo or net-radiation measurements with 2 ventilated radiometers.
3.4 CMB 1 Mounting Bracket
Article number 0369701
To mount the CMF4 to a mast or wall the CMB 1 mounting bracket can be used.

Remove CVF4 feet (4x) and
remount two feet in these counterbore holes
CVF4
CVF Adapter
M6 x 10 cap screw (2x)
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Instruction Manual - CVF4
3.5 Adapter for use of the CVF4 in the CM 121C shadow ring
Relocation of 2 of the CVF4 mounting feet to fit it on the CM 121C shadow ring
The blue adapter part is included with the CM 121C.
CM 121B (Article number 0346900) is not supplied with, nor aligned for the CVF4 adapter (Article number 0346700)
CM 121C (Article number 0346901) is aligned for and supplied with the CVF4 adapter

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Instruction Manual - CVF4

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Instruction Manual - CVF4
Regular inspection of the CVF4 is advised. Depending on the location (air pollution) this can be monthly or yearly. When on site
for inspection of other instruments it is advised to check the CVF4 filter.
At the same time radiometer levelling and desiccant can be checked. For access to the desiccant the 2 mounting nuts have to be
loosened and the top cover taken off.
When replacing the cover, make sure it is placed correctly. This can best be done by checking the opening around the radiometer,
this should be evenly spaced.
Tip: When the tacho output is logged with the radiometer data, the performance of the ventilator can be remotely checked.
Refer to radiometer instruction sheet for maintenance instructions.
Regularly inspect the fan inlet by unclipping the cover.
For optimal air flow, make sure the diagonal line on the cover is in line with the ventilator part (see above drawing).
The filter cover clicks back on the ventilator.
Clean or replace filter every 6 months.
The interval strongly depends on the location and pollution of the air. Discolouration or pollution of the plastic cover will not
affect the proper operation of the radiometer. (the radiometer can not ‘see’ the CVF4 cover). Cleaning of the cover can be
done with water and a brush or cloth.
4. Maintenance
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