The smart interface not only provides versatile outputs, the integrated temperature sensor and digital polynomial functions also provide individual correction for the temperature sensitivity of the detector from -40 °C to +80 °C. The standardised output makes it easy to interchange instruments for recalibration.

SHP1 pyrheliometers have extremely low power consumption so that internal heating does not affect the detector performance. They operate from a wide range of supply voltages, making them ideal for power-critical applications, and the power input is protected against reversed polarity.

Two versions are available, SHP1-V has an analogue output of 0-1 V, SHP1-A is 4-20 mA. Both have a 2-wire RS-485 serial interface with Modbus® RTU protocol that provides a range of instrument status and configuration information, with user-selectable options.

The analogue outputs allow easy connection to virtually any data logger without the need for sensitive mV inputs. Modbus® interfaces directly to PLC and SCADA systems, industrial networks and controllers. A recalibrated instrument keeps the same analogue and digital measurement ranges, saving time by eliminating re-scaling of data collection equipment.

Kipp & Zonen SmartExplorer Windows software for instrument configuration, data display and data logging is available at no charge.

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Specific parts of the UV spectrum such as UVA, UVB or UVE / UV Index cannot be derived from the SUV5 measurements. For measurement of these individual parameters our specific SUV models are required. 

SUV5 has a RS-485 interface with Modbus® RTU communication protocol and an amplified analog signal output. It can operate from 5 to 30 VDC and takes little power. The calibrated sensitivity is stored in the SUV memory so that the digital data is directly in W/m² and the analog output range is standardized.  SUV’s can be interchanged and no changes have to be made in the data logger or data acquisition system after recalibration. 

Use our free SmartExplorer Windows software for display of data , data logging, to a PC and for changing Modbus® address and communication settings. 

SUV5 is compatible with the same accessories as our SMP range of pyranometers.

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The CNR4 net radiometer consists of a pyranometer pair, one facing upward, the other facing downward, and a pyrgeometer pair in a similar configuration. The pyranometer pair measures the short-wave radiation. And the pyrgeometer pair measures long-wave radiation. The upper long-wave detector of CNR4 has a meniscus dome. This ensures that water droplets role off easily and improves the field of view to nearly 180°, compared with a 150° for a flat window. All 4 sensors are integrated directly into the instrument body, instead of separate modules mounted onto the housing. But are each calibrated individually for optimal accuracy.

Two temperature sensors, a Pt-100 and Thermistor, are integrated for compatibility with every data logger. The temperature sensor is used to provide information to correct the infrared readings for the temperature of the instrument housing. Care has been taken to place the long-wave sensors close to each other and close to the temperature sensors. This assures that the temperatures of the measurement surfaces are the same and accurately known. Which improves the quality of the long-wave measurements.

The design is very light in weight and has an integrated sun shield that reduces thermal effects on both long-wave and short-wave measurements. The cables are yellow with waterproof connectors as used with all our new radiometers. The mounting rod can be unscrewed for transport.

An optional CNF4 ventilation unit with heater is designed as an extension of the sunshield and can be fitted new to the CNR4 or retro-fitted later. This unit is compact and provides efficient air-flow over the domes and windows to minimize the formation of dew and reduce the frequency of cleaning. The integrated heater can be used to melt frost.

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The DustIQ is unique because it does not require routine cleaning and mechanical maintenance, it is easily mounted directly in between framed PV modules on fixed and tracked sites, and is cleaned only when the modules are cleaned.

Module cleaning is most economically viable when the revenue losses and performance penalties caused by soiling exceed the operational costs of monitoring and cleaning. DustIQ provides the information for solar energy plant management systems so that you can decide exactly when and where to clean. The cost-effective price of the DustIQ makes it feasible to install a network of DustIQ units to monitor the variation in soiling over across an entire PV plant.

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With the optional top mounting plate and shading assembly SOLYS2 can be configured as a complete solar monitoring station with up to three ventilated Kipp & Zonen radiometers. A large range of mounting kits is available for direct solar radiation instruments.

An advance over conventional sun trackers is the integrated GPS receiver to automatically configure location and time data upon installation. SOLYS2 does not require a computer and software for setup. Leveling is easily checked using the integrated bubble level on top.

The rugged and distinctive cast aluminum housing has an integrated tripod stand with leveling feet, azimuth adjustment and provision for tie-down bolts. A side plate with zenith adjustment and mountings for a Kipp & Zonen CHP1 pyrheliometer is included.

SOLYS2 does not suffer from internal clock drift because the time is regularly updated by the GPS receiver. If the tracker is correctly leveled and aligned, and mounted on a solid and stable support, it will continue to point accurately. An optional sun sensor is available for active tracking, to correct for motion in a support affected by changing environmental conditions.

SOLYS2 can operate from AC or 24 VDC power, both inputs are available as standard. The operating temperature range from – 20 °C to + 50 °C on DC power can be extended to -40 °C on AC power using the standard internal heater.

SOLYS2 brings to the sun tracker market distinctive design, innovative features, performance, quality and unprecedented ease of use – all at a surprisingly affordable price.

The design of the SOLYS2 sun tracker is based on Kipp & Zonen open source software.

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High payload for multiple and / or heavy instruments

The high precision gear drive system requires no regular maintenance and is much more powerful than the belt drive system of the SOLYS2. The maximum payload is increased to 80 kg and the torque is raised to 60 Nm, allowing SOLYS Gear Drive to carry multiple and/or heavy instruments and other loads. The integrated GPS receiver automatically configures location and very accurate time information upon installation.

Smart software for real-time status information

The included user interface software allows remote monitoring and logging of the tracker status, sun zenith and azimuth angles, GPS time and date and more. The software can also be used to set the communication parameters such as fixed or manual IP address and baud rate. The integrated Web Interface can be used to visualise (get and set) operational parameters, download history log files or upload new firmware when available.

What you need to build a solar monitoring station

To build your solar radiation measurement station the SOLYS Gear Drive is the base to hold an array of instruments to monitor solar and sky radiation. The shading assembly and other mounting accessories from the SOLYS2 can all be fitted. For operation in extremely cold regions an insulated cold weather cover is available that allows use in temperatures down to -50°C and with wind speeds up to 20m/s. For very hot climates a sun shield can be fitted, extending the upper temperature range to +60°C.

SOLYS Gear Drive has the mountings for pyrheliometer already fitted and includes the sun sensor for active tracking. However, it does not include a tripod stand. It can be used with the cast aluminum SOLYS Tripod Floor Stand but, for use in extreme conditions and with high loads, the Heavy Duty Tripod Floor Stand is recommended.

SOLYS Gear Drive has been tested and protected against the highest levels of ESD, EMC and surge disturbances that might be experienced.

The SOLYS Gear Drive sun tracker with high precision reduction gear combines the highest payload, the widest temperature range and most advanced communication with smart software for real-time status information.

Sun Tracker Comparison

OTT HydroMet offers three different models under its trusted brand Kipp & Zonen. The RaZON+, the SOLYS2, and the SOLYS Gear Drive. Read how to choose the right sun tracker model  on the OTT HydroMet Blog.

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The SMP22 has internal desiccant that will last for at least 10 years. This minimises maintenance significantly.

The interval for dome cleaning can be extended, and the quality of measurements maximized, by fitting SMP22 with the CVF4 ventilation unit.

The SMP22 has a digital interface, amplified analogue output, improved response time and individual  temperature corrected measurement data. The SMP22 is supplied with individual measured cosine response data. The wide and low power supply range from 5 to 30 VDC makes integration in meteorological and solar energy stations easy. The SMP22 is extreme robust and comes with 5 years warranty.

Thanks to standardized output and connections of every SMP22, exchanging instruments for recalibration is easy. 

SmartExplorer Windows software for data logging, display of data and Modbus® address setting is provided as standard.

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From the individually measured temperature response, a specific polynomial correction function is calculated for SMP10. This is loaded into the pyranometer memory and results in a very low change in sensitivity with instrument temperature: Within ± 2% over the range from -40°C to +70°C, compared to the calibration temperature of +22°C.

The interval for dome cleaning can be extended, and the quality of measurements maximized, by fitting SMP10 with the CVF4 ventilation unit.

The SMP10 has Modbus® interface, amplified analogue output, improved response time and temperature corrected measurement data. The wide and low power supply range from 5 to 30 VDC makes integration in meteorological and solar energy stations easy. The SMP10 is protected against over voltage, reversed polarity and short circuiting.

Thanks to the standardized output and connections of every SMP10, exchanging instruments for recalibration is easy.

SmartExplorer Windows software for data logging, display of data and Modbus® address setting is provided as standard.

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With a non-stability change of <0.5% over five years and a 5-year calibration interval, it delivers unmatched durability.
(To be compliant with IEC61724-1 Class A system requirements, recalibration is required every 2-years from date of installation.) 

Designed for spectral flatness, the SMP12 provides consistently precise measurements in any environment.

Features:

• ISO 9060:2018 and IEC 61724-1:2021 Class A compliant
• Solid-state dome heating for dew and frost prevention.
• Multi-axis tilt sensor to enable remote monitoring of the pyranometer mounting and orientation.
• Internal humidity and temperature monitoring to provide confidence in the integrity of the instruments internal functionality.
• Best-in-class surge protection conforms to EN 61000-6-2 Industrial standard
• Maintenance-free operation – no moving parts that can wear out
• Easy system integration – RS-485 and Modbus® RTU compatible

The new SMP12 is fast response spectrally flat Class A pyranometer that combines solid-state dome heating, with no moving parts, and best-in-class surge protection to maximize accuracy and minimize maintenance.

The SMP12 combines proven sensor and diffuser technology from the RaZON+ PH1 and PR1 radiometers with an enhanced version of the Smart interface and the low maintenance of the SMP10.

The SMP12 has an internal drying cartridge that will last for at least 10 years if the housing is unopened. This reduces maintenance significantly. 

The SMP12 has a 2-wire RS-485 Modbus® RTU interface but, unlike the other SMP models, it does not have an analog output. The characteristics of the thermopile detector provide a fast response time of less than half a second. The wide power supply range from 10 to 30 VDC makes integration into solar energy plant performance monitoring stations easy. SMP12 has class-leading electrical protection in the form of 2-stage surge and reverse polarity protection on the power input and 3-stage surge protection on the RS-485 data lines.

Like all SMP series pyranometers, the calibrated sensitivity is stored in memory and can be accessed via the Modbus® interface and the measured irradiance value is output via Modbus® in W/m². This makes it easy and simple to interchange different instruments when recalibration or repair is required.

SmartExplorer Windows software provides: data logging on a PC, displaying of data, changing Modbus® communication settings, configuring of the Modbus® addresses – and more.

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