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CUV5 and SUV Series Ultraviolet Radiometers

CUV5 and SUV Series Ultraviolet Radiometers

Product catalog summary

Scope of Supply
The package includes a UV Radiometer, sun shield, cable and plug, calibration certificate, instruction sheet, and a fixing kit with screws, nuts, washers, and an insulation ring.

Order Numbers and Variants
Product variants include CUV5, SUV5, SUV-A, SUV-B, and SUV-E, each with specific order numbers. Accessories and spare parts are available, such as ventilation units, mounts, glare screen kits, data loggers, and shadow rings.

About this Manual
This manual provides installation, maintenance, and calibration information, using symbols to indicate tips, actions, and warnings, with different levels of danger indicated by WARNING, CAUTION, and NOTICE.

General Safety Instructions
The radiometer is designed for measuring global UV solar irradiance. Misuse is prohibited, and only qualified personnel should handle the equipment, following safety instructions to avoid burns and ensure correct handling. The product is certified under CE, FCC, and IC regulations.

Product Description
The CUV5 and SUV radiometers measure UV solar irradiance with models for specific UV bands. They feature digital signal processing, temperature correction, and various outputs, with a design that includes a photodiode detector, optical filter, diffusor, and dome, along with built-in leveling features and sun shields.

Transport, Storage, and Unpacking
Carefully unpack the product, check for completeness and damage, and store it in a dry area within specified temperature ranges.

Installation
Mechanical installation requires specific tools and site selection to avoid obstructions and heat sources. Electrical installation involves connecting cables without power supply for CUV5 and ensuring proper connections for SUV radiometers to avoid damage from power or ground loops.

Commissioning and Operation
Setup involves using Smart Explorer Software to establish connections and adjust parameters. Measurements can be made and saved, and data collected.

Maintenance
A maintenance schedule is provided, including desiccant replacement for CUV5 radiometers.

Troubleshooting and Repair
Guidance is provided for fault elimination and customer support for repairs.

Disposal
Notes on proper disposal of old devices are included.

Technical Data
Specifications include optical and electrical data, dimensions, and weight.

Appendix
Additional information on UV broadband radiometers, spectral response, indoor measurement, and directional response impact is provided.

Connection and Setup Procedures
To connect the device, plug the connector into the socket and secure it by turning the locking ring clockwise. Avoid overtightening to prevent seal damage. Power on the supply and computer. Note that the pyranometer may take up to three hours to stabilize.

Grounding Radiometer
Ensure good electrical contact to ground via the cable shield to prevent electrostatic discharge. Do not ground through the radiometer mounting.

Analog Voltage Output
CUV5 radiometer outputs analog voltage directly from the photodiode detector. SUV radiometers derive analog output from digital values with a fixed range of 0-1 V. The voltage output range can be adjusted using PC software.

Commissioning
Use Smart Explorer software to configure sensors and collect data. Default communication parameters include a Modbus baud rate of 19200, even parity, 8 data bits, and 1 stop bit. Adjust settings as necessary and save them.

Operation
Connect the instrument to a data storage device to save measurements. Optimal data collection involves sampling every second and storing minute averages.

Maintenance
Regular cleaning and checks are necessary. Clean the dome twice a week and check the instrument monthly. Replace desiccant as needed.

Troubleshooting
For signal issues, check cable connections, power supply, and Modbus address. Ensure no obstacles block solar radiation and maintain cleanliness.

Repair and Disposal
Repairs should be conducted by OTT HydroMet personnel. Dispose of old devices according to local regulations.

Technical Data
Specifications include spectral range, measurement range, response time, and power consumption. The instruments are designed for outdoor use but can be used indoors with appropriate calibration.

Appendix
CUV5 and SUV radiometers are broadband radiometers with specific spectral responses. Calibration is crucial to minimize spectral errors.

Introduction
The document discusses the G 173 atmospheric spectrum at airmass 1.5, focusing on the response of various instruments to UV radiation. It highlights the spectral response of instruments like SUV5 and CUV5, and the impact of environmental conditions on measurements.

Instrument Response and Calibration
The SUV5 instrument primarily responds to wavelengths between 300 nm and 380 nm, with 'Total-UV' defined as radiation between 280 nm and 400 nm. Calibration ensures the detector output represents UV amounts according to an ideal response. The document explains the concept of 'enclosed radiation,' which is the product of the instrument's response and irradiance level at each wavelength.

Sensitivity and Spectral Errors
The sensitivity of an instrument is the ratio between the ideal and actual enclosed radiation. This ratio can change with varying atmospheric conditions, leading to spectral errors. The SUV-E instrument uses a spectrally-weighted response to measure the Global Solar UV Index (UVI), minimizing spectral mismatch during calibration.

Measurement Errors
Typical spectral errors due to changes in solar zenith angles and total ozone columns are provided. Errors also occur when measuring indoor light sources with UV radiometers calibrated for solar radiation, due to differences in emission spectra. The document lists typical errors for different lamp types.

Directional Response
Global Horizontal Irradiance (GHI) is affected by the sun's position, requiring radiometers to have a good directional response. CUV5 and SUV radiometers use photodiodes and optical filters, but require a diffuser to accept radiation from a wide angle. The document explains the concept of directional error and its impact on measurements.

Conclusion
The document concludes by emphasizing the importance of understanding and minimizing errors in UV radiation measurements, particularly in varying environmental conditions.

Catalog excerpts

CUV5 and SUV Series Ultraviolet Radiometers-1

HKIPP&A zoiueixi - an OTT HydroMet brand - CUV5 and SUV Series Ultraviolet Radiometers Operational Manual

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CUV5 and SUV Series Ultraviolet Radiometers-2

OTT HydroMet B.V. Delftechpark 36 2628 XH Delft The Netherlands +31 15 2755 210 [email protected] www.otthydromet.com All rights reserved. All content is the intellectual property of OTT HydroMet. Reprinting, duplication and translation (even as excerpts) are only permitted with the prior written consent of OTT HydroMet. Subject to technical change.

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CUV5 and SUV Series Ultraviolet Radiometers-3

2 Order numbers and variant code_ 6 2.2 Accessories and spare parts_ 6 3 About this manual_ 8 3.1 Other applicable documents_ 8 3.2 General signs and symbols_ 8 4 General safety instructions_ 9 4.5 Danger of burns due to hot surfaces_ 9 6 Transport, storage, and unpacking_ 13 7.1.2 Required tools and aids_ 14 7.1.3 Installation for measurement on a horizontal plane_ 14 7.2.1 Electrical connections of CUV5 radiometer_ 16 7.2.2 Electrical connections of SUV radiometers_ 16 7.2.4 Analog voltage output_ 18

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CUV5 and SUV Series Ultraviolet Radiometers-4

8.1.1 Starting the Smart Explorer Software_ 20 8.1.3 Adjusting the communication parameters_ 22 8.1.4 Finding an instrument with unknown communication parameters_ 24 9.1 Making and saving measurements_ 25 13 Notes on disposing of old devices_ 29 14.1 Optical and electrical data_ 30 15.2 Instrument spectral response and ideal UV response_ 33 15.3 Indoor measurement with lamps_ 36 15.4 Directional response and its impact on UV measurement_ 36

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CUV5 and SUV Series Ultraviolet Radiometers-5

The following items are included with the radiometers: - Calibration certificate - Instruction sheet - 2 stainless steel screws M5 x 80 mm - Nuts and flat washers - Nylon insulation ring

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CUV5 and SUV Series Ultraviolet Radiometers-8

The following documents contain further information on installation, maintenance and calibration: - Smart Pyranometer Communication Manual - Smart Explorer Software Manual The signs and symbols used in the operating manual have the following meaning: i This symbol indicates important and useful information. ■/ Prerequisite that must be met before performing an action. o Intermediate result of an action o Result of a completed action - List item, 1st level - List item, 2nd level To avoid personal injury and material damage, you must observe the safety information and warnings in the operating...

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CUV5 and SUV Series Ultraviolet Radiometers-9

The radiometer is used to measure and report the global ultraviolet (UV) solar irradiance. Any use of the product that does not comply with the intended use, be this intentional or negligent, is forbidden by the manufacturer. ► Use the product only as described in the operational manual. The equipment described in this manual must be installed, operated, maintained and repaired by qualified personnel only. ► Obtain training from OTT HydroMet if necessary. To avoid equipment damage and injury when handling the product, personnel are obliged to the following: ► Read the operational manual carefully...

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CUV5 and SUV Series Ultraviolet Radiometers-10

4.7 Certification CE (EU) The equipment meets the essential requirements of EMC Directive 2014/30/EU. FCC (US) FCC Part 15, Class "B" Limits This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operation. IC (CA) Canadian Radio Interference-Causing Equipment Regulation, ICES-003, "Class B" This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations....

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CUV5 and SUV Series Ultraviolet Radiometers-11

5 Product description 5.1 Design and function CUV5 and SUV radiometers are designed and calibrated to measure global ultraviolet (UV) solar irradiance. There are models for the specific UV bands and they provide measurements in units of W/m2: – CUV5 and SUV5 cover the total UV range. – SUV-A covers the UVA band. – SUV-B covers the UVB band. – SUV-E measures with the standard "Erythemal" response of human skin. The CUV5 radiometer has a low-level analog output signal directly from the detector. SUV radiometers feature internal digital signal processing and outputs for industrial data acquistion...

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CUV5 and SUV Series Ultraviolet Radiometers-12

8 Adjustable leveling feet 3 Glass or quartz dome 8 Adjustable leveling feet

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CUV5 and SUV Series Ultraviolet Radiometers-13

► Carefully remove the product from the packaging. ► Check that the delivery is complete and undamaged. ► If you find any damage or if the delivery is incomplete, then immediately contact the supplier and manufacturer. ► Keep the original packaging for any further transportation. ► Store within specified temperature ranges. ► Store in original box where possible.

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CUV5 and SUV Series Ultraviolet Radiometers-14

► Check the desiccant of the CUV5 radiometer and replace the desiccant if necessary. ► If using the digital output of the SUV radiometer, set the Modbus® address before visiting the site. Otherwise a computer and RS-485 / USB converter is required during installation. The following tools and aids are required: There should be no obstructions to the field of vision above the instrument's sensor element. If this is not possible, the location of the instrument must be chosen to ensure that obstacles do not rise by more than 5 degrees above the azimuth range between sunrise after the shortest night...

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CUV5 and SUV Series Ultraviolet Radiometers-15

2x flat washers 2x nuts 2 2x nylon insulating rings ► To insulate the instrument against the temperature of the mounting device, place the instrument on the adjustable foot and the two leveling feet. ► Position the instrument in such a way that the nuts are located at a distance of 2 to 3 mm from the mounting device. ► Ensure that the instrument is grounded. ► Ensure that the instrument is not in the shade. ► When installed horizontally, point the cable connector towards the nearest pole to reduce the UV exposure on the cable. ► In order to align the instrument horizontally, rotate the leveling...

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CUV5 and SUV Series Ultraviolet Radiometers-16

Damage due to power supply! The instrument does not require power. Connecting power causes damage to the instrument. ► Do not connect the instrument to power supply. The CUV5 radiometer has a 2-wire cable and 2-pin connector. The maximum recommended cable length is 100 m of good quality shielded 2-core signal cable. Damage due to power or ground loops! Connecting the RS-485 to a grounded circuit and the analog output to a floating circuit can cause ground loops. This may cause differential voltages that will damage the instrument. ► Use either the analog or the digital output. ► Observe the maximum...

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CUV5 and SUV Series Ultraviolet Radiometers

CUV5 and SUV Series Ultraviolet Radiometers

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