OTT HydroMet KIPP & ZONEN SUV Series Quick start guide

an OTT HydroMet brand
CUV5 and SUV Series
Ultraviolet Radiometers
Operational Manual
0377201 | 01-1123

Copyright ©OTT HydroMet B.V.
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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Table of contents
1 Scope of supply 5
2 Order numbers and variant code 6
2.1 Product variants 6
2.2 Accessories and spare parts 6
2.2.1 Accessories 6
2.2.2 Cables and plugs 7
3 About this manual 8
3.1 Other applicable documents 8
3.2 General signs and symbols 8
3.3 Explanation of warnings 8
4 General safety instructions 9
4.1 Intended use 9
4.2 Potential misuse 9
4.3 Personnel qualification 9
4.4 Personnel obligations 9
4.5 Danger of burns due to hot surfaces 9
4.6 Correct handling 9
4.7 Certification 10
5 Product description 11
5.1 Design and function 11
5.2 Product overview 12
6 Transport, storage, and unpacking 13
6.1 Unpacking 13
6.2 Storage 13
7 Installation 14
7.1 Mechanical installation 14
7.1.1 Preparatory work 14
7.1.2 Required tools and aids 14
7.1.3 Installation for measurement on a horizontal plane 14
7.2 Electrical installation 16
7.2.1 Electrical connections of CUV5 radiometer 16
7.2.2 Electrical connections of SUV radiometers 16
7.2.3 Grounding radiometer 17
7.2.4 Analog voltage output 18
8 Commissioning 19

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8.1 Set up instrument 19
8.1.1 Starting the Smart Explorer Software 20
8.1.2 Establishing connections 21
8.1.3 Adjusting the communication parameters 22
8.1.4 Finding an instrument with unknown communication parameters 24
9 Operation 25
9.1 Making and saving measurements 25
9.2 Collecting data 25
10 Maintenance 26
10.1 Maintenance schedule 26
10.2 Replacing desiccant 26
11 Troubleshooting 27
11.1 Fault elimination 27
12 Repair 28
12.1 Customer support 28
13 Notes on disposing of old devices 29
14 Technical data 30
14.1 Optical and electrical data 30
14.2 Dimensions and weight 32
15 Appendix 33
15.1 UV broadband radiometers 33
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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1 Scope of supply
The following items are included with the radiometers:
– UV Radiometer
– Sun shield
– Cable and plug
– Calibration certificate
– Instruction sheet
– Fixing kit:
– 2 stainless steel screws M5x80mm
– Nuts and flat washers
– Nylon insulation ring

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2 Order numbers and variant code
2.1 Product variants
Variant Order number
CUV5 0364910
SUV5 0377900
SUV-A 0387910
SUV-B 0387920
SUV-E 0387930
2.2 Accessories and spare parts
2.2.1 Accessories
For CUV5, SUV-A, SUV-B, SUV-E
Item Order number
CVF 4 Ventilation Unit 0378910
CMF1 - Albedometer mount 0362700
CMF4 - Albedometer mount 0362703
Unventilated glare screen kit 0305722
Ventilated glare screen kit 0305725
AMPBOX 0365900
METEON Data Logger 0365910
METEON 2.0 Data Logger 0388900
LogBoxSE Data Logger 3303096
CM121B/C Shadow Ring - Unventilated 0346900
CM121B/C Shadow Ring - Ventilated 0346901
For SUV5
Item Order number
Smart Powered Hub 0382440
Smart Hub 0382445
PMU485 Smart Set Hub 0382460

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2.2.2 Cables and plugs
For CUV5
Item Order number
Waterproof 2-pin plug 2523144
10m cable, pre-wired with waterproof 2-pin plug 0362601
25m cable, pre-wired with waterproof 2-pin plug 0362603
50m cable, pre-wired with waterproof 2-pin plug 0362604
100m cable, pre-wired with waterproof 2-pin plug 0362605
For SUV5, SUV-A, SUV-B, SUV-E
Item Order number
Waterproof 8-pin plug 2523146
10m cable, pre-wired with waterproof 8-pin plug 0362621
25m cable, pre-wired with waterproof 8-pin plug 0362623
50m cable, pre-wired with waterproof 8-pin plug 0362624
100m cable, pre-wired with waterproof 8-pin plug 0362625

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3 About this manual
3.1 Other applicable documents
The following documents contain further information on installation, maintenance and calibration:
– Smart Pyranometer Communication Manual
– Smart Explorer Software Manual
3.2 General signs and symbols
The signs and symbols used in the operating manual have the following meaning:
Practical tip
iThis symbol indicates important and useful information.
Action
üPrerequisite that must be met before performing an action.
4Step 1
ðIntermediate result of an action
4Step 2
ðResult of a completed action
List
– List item, 1st level
– List item, 2nd level
3.3 Explanation of warnings
To avoid personal injury and material damage, you must observe the safety information and warnings in the
operating manual. The warnings use the following danger levels:
WARNING
WARNING
This indicates a potentially hazardous situation. If the hazardous situation is not avoided, it may result in death or
serious injuries.
CAUTION
CAUTION
This indicates a potentially hazardous situation. If the hazardous situation is not avoided, it may result in
moderately serious or minor injuries.
NOTICE
NOTE
This indicates a situation from which damage may arise. If the situation is not avoided, products may be damaged.

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4 General safety instructions
4.1 Intended use
The radiometer is used to measure and report the global ultraviolet (UV) solar irradiance.
4.2 Potential misuse
Any use of the product that does not comply with the intended use, be this intentional or negligent, is forbidden by
the manufacturer.
4Use the product only as described in the operational manual.
4.3 Personnel qualification
The equipment described in this manual must be installed, operated, maintained and repaired by qualified
personnel only.
4Obtain training from OTT HydroMet if necessary.
4.4 Personnel obligations
To avoid equipment damage and injury when handling the product, personnel are obliged to the following:
4Read the operational manual carefully before using the product for the first time.
4Pay attention to all safety information and warnings.
4If you do not understand the information and procedure explanations in this manual, stop the action and
contact the service provider for assistance.
4Wear the necessary personal protective equipment.
4.5 Danger of burns due to hot surfaces
The metal parts of the housing may get very hot when subject to a high ambient temperature (>60°C). If someone
touches the housing, these metal parts may cause burns.
4Wear protective gloves during installation and maintenance.
4.6 Correct handling
If the product is not installed, used and maintained correctly, there is a risk of injury. The manufacturer does not
accept any liability for personal injury or material damage resulting from incorrect handling.
4Install and operate the product under the technical conditions described in the operational manual.
4Do not change or convert the product in any way.
4Do not perform any repairs yourself.
4Get OTT HydroMet to examine and repair any defects.
4Ensure that the product is correctly disposed of. Do not dispose of it in household waste.

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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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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 and control
systems. In addition to the 2-wire RS-485 interface with Modbus® (RTU) protocol the SUV radiometers provide an
analog output of 0 to 1V. Digital signal processing and an integrated temperature sensor correct for the
temperature dependency of the detector sensitivity.
To achieve the required spectral and directional reponse characteristics the radiometers use a photodiode
detector, an optical filter, a diffusor and a glass or quartz dome. The instruments have built-in bubble levels and
adjustable leveling feet. Snap-on sun shields reduce solar heating of the housings. The waterproof connectors have
gold-plated contacts.
The radiometers are delivered with a waterproof plug pre-wired to a signal cable. The cable is 10m long but other
lengths are available. The instruments can also be ordered with a plug only, for the user to fit their own cable.
To prevent condensation on the inner side of the dome, the SUV radiometers have an internal desiccant that last up
to 10 years. The desiccant of the CUV5 radiometer is located in a drying cartridge and must be replaced regularly.

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5.2 Product overview
1
2
3
45
9
6
7
8
10
CUV5 radiometer
1 Sun shield 6 Connector
2 Diffusor 7 Housing
3 Glass dome 8 Adjustable leveling feet
4 Photodiode detector 9 Fixed foot
5 Bubble level 10 Drying cartridge
1
2
3
45
6
7
8
10
11
9
SUV radiometers
1 Sun shield 7 Housing
2 Diffusor 8 Adjustable leveling feet
3 Glass or quartz dome 9 Smart interface
4 Photodiode detector 10 Fixed foot
5 Bubble level 11 Internal desiccant
6 Connector

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6 Transport, storage, and unpacking
6.1 Unpacking
4Carefully remove the product from the packaging.
4Check that the delivery is complete and undamaged.
4If you find any damage or if the delivery is incomplete, then immediately contact the supplier and
manufacturer.
4Keep the original packaging for any further transportation.
6.2 Storage
4Store within specified temperature ranges.
4Store in dry area.
4Store in original box where possible.

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7 Installation
7.1 Mechanical installation
7.1.1 Preparatory work
4Check the desiccant of the CUV5 radiometer and replace the desiccant if necessary.
4If 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.
7.1.2 Required tools and aids
The following tools and aids are required:
– Allen key, 4mm
– wrench, 8mm
– open-ended wrench, 16mm or ⅝"
7.1.3 Installation for measurement on a horizontal plane
7.1.3.1 Choosing a site
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 and sunset on the longest day.
The 5degrees correspond to a minimum distance from the instrument to the obstacle of 10times the height of the
obstacle:
h
>10 x h
Minimum distance from instrument to obstacle
The minimum distance is important for measuring the direct radiation. The diffuse solar radiation is not so affected
by obstacles near the horizon. An obstacle to the field of vision that rises 5degrees over the entire azimuth range
of 360degrees reduces the diffuse radiation directed downwards by only 0.8%.
4Position the instrument in such a way that no shadows fall on it, for instance from masts.
4Avoid hot exhaust gases with a temperature of over 100°C in the proximity of the instrument. The radiation
can cause measurement deviations.
4Do not position the instrument in front of light-colored walls or any other objects that reflect the sunlight or
emit short-wave radiation.

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7.1.3.2 Mounting
65 mm
1
2
3
4
5
1 2x M5x80mm screws 4 2x flat washers
2 2x nylon insulating rings 5 2x nuts
3 2x Ø5.2mm
4To insulate the instrument against the temperature of the mounting device, place the instrument on the
adjustable foot and the two leveling feet.
4Position the instrument in such a way that the nuts are located at a distance of 2 to 3mm from the mounting
device.
4Ensure that the instrument is grounded.
4Ensure that the instrument is not in the shade.
4When installed horizontally, point the cable connector towards the nearest pole to reduce the UV exposure on
the cable.
4In order to align the instrument horizontally, rotate the leveling feet until at least half the spirit level bubble is
in the inner ring.
4Fix the instrument with the screws, ensure that the instrument retains the correct alignment.
4To prevent corrosion between the screws and the instrument housing, ensure that the nylon insulating rings
are fixed.
4Insert the connector with the cable into the instrument’s connection socket.
4Tighten the locking ring hand tight.
NOTICE!The seal may be damaged by overtightening!
4Fix the cable in such a way that the cable doesn’t move or cast a shadow on the instrument.
4Fix the sun shield.

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7.2 Electrical installation
7.2.1 Electrical connections of CUV5 radiometer
NOTICE
Damage due to power supply!
The instrument does not require power. Connecting power causes damage to the instrument.
4Do 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.
7.2.2 Electrical connections of SUV radiometers
NOTICE
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.
4Use either the analog or the digital output.
4Observe the maximum differential voltage of 70VDC between one of the two Modbus® RS-485 lines (yellow
and gray) and the power ground (black) or RS-485 common line (blue).
The SUV radiometers use an 8-wire cable and 8-pin connector.
4Connect all the required wires.
4Plug the cable into the radiometer.
4Turn the power on.
7.2.2.1 Power connection
The minimum supply voltage for SUV radiometers is 5VDC and the maximum is 30 VDC. 5-volt-power can only be
used with a short cable, maximum 10m. To ensure reliable performance, a voltage of 12VDC is recommended. For
the output of the power supply, it is recommended to protect it with a fast blowing fuse of maximum 250mA
rating.
7.2.2.2 Power consumption
Voltage (V DC) Current (mA) Power (mW)
5 10.0 50
12 4.5 55
24 2.5 60
Typical power consumption SUV for maximum analog output (1V)
– Maximum power consumption 65mW at the highest input voltage.
– Maximum input current 12.5mA at the lowest input voltage.
– Maximum inrush current 200mA.

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7.2.2.3 Connecting to computer
NOTICE
Damage due to lack of insulation!
The power supply units of portable computers such as laptops can generate large voltage peaks. This may cause
damage to the instrument’s digital interface.
4Ensure that the converter has galvanic separation between the inputs and outputs.
The instrument must be connected to a computer via an RS-485 converter with a USB port.
Red– not connected
Green – analog out +
Brown – analog out -
Yellow– Modbus® RS-485
Gray– Modbus® RS-485
Blue– Modbus® common
White– power 5 to 30 V DC
Black– power ground
RS-485 USB converter
Connection to RS-485 converter
4Ensure that the power supply is switched off.
4Connect the white wire to the black wire on the power supply unit.
4Connect the yellow, gray and blue wires to the RS-485 converter.
4Isolate and seal the red wire and any other wires when they are not in use.
4Align the indentation on the connector with the indentation on the instruments’s connection socket.
4Plug the connector into the connection socket.
4Turn the locking ring clockwise and tighten it hand tight to secure the connector.
NOTICE!The seal may be damaged by overtightening!
4Switch on the power supply.
4Switch on the computer.
iIt may take three hours for the pyranometer to reach a stable temperature. During this time, the irradiation
measurements may deviate from the final measurements.
7.2.3 Grounding radiometer
Good electrical contact to ground must be maintained to conduct away currents induced in the cable shield by
lightning or other electrostatic discharge (ESD). The fixing screws are isolated and the anodizing of the radiometer
housing and feet is non-conductive. The shield of the cable is connected to the aluminum radiometer housing
through the connector body.
4Set up the grounding via the cable shield close to the radiometer. The shield connection is the thick black wire.
4Do not ground through the radiometer mounting.

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7.2.4 Analog voltage output
CUV5 radiometer
The analog voltage output is generated directly by the photodiode detector in response to received radiation. The
individual sensitivity is used to convert the output signal in in μV to W/m2 of irradiance when recorded by a data
logger. Total UV radiation is unlikely to exceed 100W/m2 from natural sunlight and the maximum signal is unlikely
to exceed 75mV.
SUV radiometers
The analog voltage output is derived from the digital value and has a fixed range of 0–1V (1000mV). The
irradiance range that this represents is set in the Smart Interface firmware scale length and the factory settings are
appropriate for use under natural sunlight. An extended range enables use in test chambers with high-intensity UV
simulation lamps.
iThe zero (0W/m2) point is raised to allow for possible electrical offsets in the output amplifier.
Specification SUV5 SUV-A SUV-B SUV-E
Irradiance (W/m2) 0 to 400 0 to 90 0 to 9 0 to 0.9
Output (mV) 100 to 1000 100 to 1000 100 to 1000 200 to 1000
The voltage output range in W/m2 can be changed with the supplied PC software.

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8 Commissioning
8.1 Set up instrument
The Smart Explorer software allows to configure a smart sensor and to collect real-time data.
The factory default communication parameters are as follows:
– Modbus® baud rate: 19200
– Parity: even
– Data bits: 8
– Stop bits: 1
– Address: 1
4If using the software on-site, ensure that the software is already installed on the laptop.
4For detailed information about setup, monitoring, and data logging, see the Smart Explore software manual.
4Download the Smart Explorer software and the manual at the following address: www.kippzonen.com

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8.1.1 Starting the Smart Explorer Software
4Start the Smart Explorer Software:
4Click on the Setup menu and check whether the following settings are activated:
4Adjust the settings if necessary.
4Click on the Update button to save the settings.