SR100-D1 - Industrial Pyranometer for Radiation Monitoring

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.

* 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

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

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

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

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

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

* 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

Application of This Instrument

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