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Kipp & Zonen CVF4 Instruction Manual

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Instruction Manual
CVF4 Ventilation Unit

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Summary of Contents for Kipp & Zonen CVF4

  • Page 1 Instruction Manual CVF4 Ventilation Unit...

  • Page 3: Important User Information

    Dear customer, thank you for purchasing a Kipp & Zonen instrument. 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.

  • Page 5: Declaration Of Conformity

    P.O. Box 507, 2600 AM Delft The Netherlands declares under our sole responsibility that the product CVF4 Ventilation Unit to which this declaration relates, is in conformity with European Harmonised Standards as published in the Official Journal of the EC, based on the following standard...

  • Page 7: Table Of Contents

    3.2.1 CVP1 ......................................................................3.2.2 CVP2 ......................................................................CMF4 Mounting Fixture ........................................................... CMB1 Mounting Bracket ........................................................... Adapter for use of the CVF4 in the CM121C shadow ring ........................................Maintenance ................................................................Specification ................................................................Optical and electrical ............................................................Dimensions and weight ............................................................. Trouble shooting ..............................................................

  • Page 9: Introduction

    The CVF4 is meant for all CM, CMP, SMP, CG, CGR and CUV radiometers. However with the CMP3 and SMP3 and CGR3 the ventilation e ect 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 o afterwards.

  • Page 10: Cvf4 Top Side

    1.1 CVF4 top side Ventilator Heater Mounting holes CMP3, SMP3 and CGR3 Mounting holes all other instruments Connector Cover nut Slit for radiometer 1.2 CVF4 bottom side Filter cover Connector box Mounting feet for SOLYS2 / Feet for stabilisation Feet for stabilisation / Mounting feet for 2AP...

  • Page 11: Installation

    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.

  • Page 12: Installation Procedure

    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 SOLYS2 Sun Tracker on the next page).
  • Page 13 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.

  • Page 14: Electrical Connections

    Ground 1/2 and +12 VDC 1/2 are separated but may be connected The CVF4 has an optional 8-wire cable for connecting the 12 VDC to the ventilator and heater. The ground is common for the ventilator, heater and the tacho output.

  • Page 15: Accessories

    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 (CVP1) and indoor (CVP2) use. 3.2.1 CVP1 Article number 0357700 The CVP1 is a waterproof (IP 65) power supply for outdoor use with 12 VDC @ 3.5 A output.

  • Page 16: Cmf4 Mounting Fixture

    CMF4 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.

  • Page 17: Adapter For Use Of The Cvf4 In The Cm121C Shadow Ring

    Relocation of 2 of the CVF4 mounting feet to fit it on the CM121C shadow ring The blue adapter part is included with the CM121C. CM121B (Article number 0346900) is not supplied with, nor aligned for the CVF4 adapter (Article number 0346700) CM121C (Article number 0346901) is aligned for and supplied with the CVF4 adapter...

  • Page 19: Maintenance

    4. Maintenance 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 o .

  • Page 21: Specification

    5. Specification Kipp & Zonen reserves the right to make changes to specifications and other product documentation without prior notice. 5.1 Optical and electrical Specifications Compatible instruments CMP6, CMP10, CMP11, SMP11, CMP21, CMP22, CGR4, CUV 5 CMP3, SMP3 and CGR3 with reduced specifications Older type single radiometers: CM, CG and CUV will also fit Compliance with standards ISO/TR 9901, BSRN operations manual...

  • Page 23: Trouble Shooting

    6. Trouble shooting Malfunction Cause Check Ventilator and heater do not work Power failure Check 12 VDC and/or mains voltage Ventilator does not work Mechanical obstruction Clean filter and/or remove obstruction Ventilator does not work Electrical failure Check fan impedance ~30 Ω Heater does not work Resistor defective Measure power resistors:...

  • Page 25: Customer Support

    7. Customer support If you require any support for your Kipp & Zonen product please contact your local representative in the first instance. The information can be found in the ‘Contact’ section of our website at www.kippzonen.com . Alternatively, you can contact us directly at www.kippzonen.com/support Please include the following information: •...
  • Page 26 Our customer support remains at your disposal for any maintenance or repair, calibration, supplies and spares. Für Servicearbeiten und Kalibrierung, Verbrauchsmaterial und Ersatzteile steht Ihnen unsere Customer Support Abteilung zur Verfügung. Notre service 'Support Clientèle' reste à votre entière disposition pour tout problème de maintenance, réparation ou d'étalonnage ainsi que pour les accessoires et pièces de rechange.

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