Hukseflux has launched “industrial-grade” solar radiation monitoring. The SR100-D1 all-digital Class B pyranometer is designed to measure solar radiation with the highest accuracy and dependability possible.
- Created for IEC 61724-1 Class B compliant PV system performance monitoring
- Integrated surge protection that can be upgraded to 4 kV with an optional SPD01 Surge Protection Device
- Compliant with IEC 61326-1 "Industrial equipment"—rated for Industrial Electromagnetic Environments
- The ability of system designers to adhere to local safety regulations
- Integration costs minimized
- Global calibration support for the lowest total cost of ownership
- RS-485 isolation: Galvanic isolation that ensures reliability and flexibility in system design
Specifications
Source: Hukseflux Thermal Sensors B.V.
. |
. |
Measurand |
hemispherical solar radiation |
ISO 9060:2018 classification |
spectrally flat Class B pyranometer |
IEC 61724-1:2021 compliance |
meets Class B PV monitoring system requirements |
Dome protector |
included (model DP01) |
Instrument diagnostics |
internal humidity |
Calibration certificate |
included (content limited according to ISO/IEC 17025, section 7.8.1.3) |
Standard cable length (not included) |
3 m |
EMC and Surge immunity * |
: |
Equipment classification |
Industrial Equipment |
Surge Immunity |
Level 2, test level 1 kV |
with optional SPD01 |
Level 4, test level 4 kV |
Electrical Safety in the workplace |
: |
Safety compliance |
EU Low Voltage Directive (2014/35/EU) / USA National Electric Code (NFPA70) |
Earthing terminal |
included on instrument |
Digital communication |
: |
Communication protocol |
Modbus RTU |
RS-485 isolation voltage |
1.5 kV |
Hardware interface |
2-wire RS-485 |
* at standard cable length of 3 m
** @ 24 VDC
Options
Hukseflux provides a range of accessories compatible with the SR100-D1, including electrical and mounting hardware options:
- SPD01 Surge Protection Device: For 1 to 3 instruments, suitable for cables longer than 3 m and enhancing Surge Protection to level 4
- TLM01 Tube Leveling Mount: Includes a set of bolts for secure mounting
- PID01 Pyranometer Isolation Disc: Electrically insulates the instrument from the mounting platform, spring-loaded for easy leveling
- LM01 Spring-Loaded Leveling Mount: A practical mount for effortless installation, leveling, and instrument exchange on flat surfaces
- DP01 Dome Protector: Set of 5 pieces
- Calibration Certificate: Includes customer name and contact information
- AMF03 Albedometer Fixture
- PMF01 and PFM02 Mounting Fixtures
Description
SR100-D1: Affordable Industrial-Grade Pyranometer
![SR100-D1 Pyranometer - For Solar Radiation Monitoring](https://d10lvax23vl53t.cloudfront.net/images/equipments/EquipmentImage_2659_17204217839055214.jpg)
Image Credit: Hukseflux Thermal Sensors B.V.
Although the SR100-D1 may look like its predecessor SR15-D1, it is essentially a brand-new sensor. Hukseflux enhanced the SR15-D1 pyranometer's measuring capabilities and designed the SR100-D1 pyranometer specifically for weather stations and PV system performance monitoring systems.
Measurement reliability is significantly increased by SR100-D1's compliance with industrial-grade immunity, emission, electrical, environmental, and safety requirements for use in these outdoor and industrial environments. Extended functionality and diagnostics further improve operation ease.
PV System Performance Monitoring: IEC 61724-1 Class B Compliant
![SR100-D1 Pyranometer - For Solar Radiation Monitoring](https://d10lvax23vl53t.cloudfront.net/images/equipments/EquipmentImage_2659_172042179237011.jpg)
Image Credit: Hukseflux Thermal Sensors B.V.
The SR100-D1 meets IEC requirements for "Class B" PV system performance monitoring. The SR300-D1 pyranometer, on the other hand, is a good option if the user needs one that works in all climates and locations.
Immunity to High Voltages and Currents–Surges
![SR100-D1 Pyranometer - For Solar Radiation Monitoring](https://d10lvax23vl53t.cloudfront.net/images/equipments/EquipmentImage_2659_17204218021302253.jpg)
Image Credit: Hukseflux Thermal Sensors B.V.
The SR100-D1 pyranometer was tested and classified according to IEC 61326-1 and IEC 61000-6-2 for use in Industrial Environments. When building a measuring system, pyranometer users may achieve multiple immunity levels.
The optional SPD01 surge protection device can achieve up to 4 kV of immunity. A single SPD01 can safeguard a maximum of three pyranometers. A third-party SPD with similar specifications may be used instead.
For a particular installation, the following general system components must be present to achieve the necessary level of immunity:
- Added to the built-in on-board sensor protection, this system includes an external surge protection
- A lightning protection system
- An earthing and grounding network
RS-485 Isolation
The industrial pyranometers' RS-485 interface is electrically isolated from both the internal electronics and the instrument body, with each isolation barrier rated at 1.5 kV. This design ensures reliable operation, enhances system design flexibility, and reduces integration costs for all industrial pyranometers.
Electrical Safety in the Workplace
![SR100-D1 Pyranometer - For Solar Radiation Monitoring](https://d10lvax23vl53t.cloudfront.net/images/equipments/EquipmentImage_2659_17204218070354413.jpg)
Image Credit: Hukseflux Thermal Sensors B.V.
A photovoltaic power plant presents a potentially dangerous work environment. The SR100-D1 has a specific earthing terminal that connects to a protective earth to abide by safety regulations. The pyranometer must be correctly earthed via this terminal, even if isolated from the mounting platform. System designers can adhere to safety regulations using SR100-D1. These are frequently based on US and EU electrical safety regulations like:
- National Electrical Code (NEC) NFPA 70
- EN-50110, Operation of Electrical Installations
Comparison Between SR300-D1, SR200-D1, and SR100-D1
![SR100-D1 Pyranometer - For Solar Radiation Monitoring](https://d10lvax23vl53t.cloudfront.net/images/equipments/EquipmentImage_2659_1720421811604904.jpg)
Image Credit: Hukseflux Thermal Sensors B.V.
Table 1. SR300-D1, SR200-D1 and SR100-D1: main specifications compared. Source: Hukseflux Thermal Sensors B.V.
Instrument Specifications
|
SR300-D1 |
SR200-D1 |
SR100-D1 |
ISO 9060:2018 classification |
spectrally flat class A |
spectrally flat class
A |
spectrally flat class B |
IEC 61724-1:2021 compliance
for solar irradiance measurement |
meets Class A
PV monitoring system requirements
for all locations and climatic conditions
|
meets Class A
PV monitoring
system
requirements
for locations where dew and frost are expected for < 2 % of annual GHI hours
|
meets Class B
PV monitoring system requirements
for all locations and climatic conditions
|
Dew and frost mitigation |
heating included |
- |
- |
IEC 61724-1:2021 compliance
for single axis tracker and pyranometer tilt angle measurement |
meets Class A
PV monitoring system requirements |
- |
- |
Tilt measurement |
Tilt measurement included |
- |
- |
Manufacturer’s estimate of achievable measurement accuracy for daily sums, following ASTM G213 uncertainty evaluation* |
2.3 % |
2.4 % |
4.6 % |
On-site diagnostics |
|
|
|
power and communication
status LED |
● |
- |
- |
Remote diagnostics alerts |
|
|
|
instrument leakage |
● |
- |
- |
heating malfunction |
● |
- |
- |
change of tilt and rotation |
● |
- |
- |
Remote diagnostics measurements |
|
|
|
Internal humidity |
● |
● |
● |
Internal pressure |
● |
- |
- |
Instrument tilt and rotation |
● |
- |
- |
* in summer at mid-latitudes, instruments used under rated operating conditions, expanded measurement uncertainties k = 2
Table 2. SR300-D1, SR200-D1, and SR100-D1 test certificates supplied with the instruments. Source: Hukseflux Thermal Sensors B.V.
Certificates and Reports
|
SR300-D1 |
SR200-D1 |
SR100-D1 |
product certificate
confirming verification of specifications and classification |
● |
● |
● |
calibration certificate |
● |
● |
● |
temperature response test of individual instrument |
● |
● |
- |
directional response test of individual instrument for 0 to 95 °
angle of incidence |
● |
● |
- |
accelerometer test of individual instrument
(0 to 180 ° tilt, -30 to +50 °C) |
● |
- |
- |
Application of This Instrument
![SR100-D1 Pyranometer - For Solar Radiation Monitoring](https://d10lvax23vl53t.cloudfront.net/images/equipments/EquipmentImage_2659_17204218228749199.jpg)
Image Credit: Hukseflux Thermal Sensors B.V.
Suggested Use
- Scientific meteorological observations
- PV system performance monitoring
Areas of Application
- Solar energy/PV system performance monitoring
- Meteorology/surface energy flux measurement