Class B pyranometer SR100-A1

analogvoltage outputfor solar energy test applications

Overview
The analog ISO 9060 spectrally flat Class B pyranometer SR100-A1 is designed for reliable measurement of hemispherical solar radiation. It delivers a millivolt-range analog output for irradiance monitoring, includes an internal Pt100 for instrument-body temperature monitoring and is optimized for low power consumption and replacement of legacy mV-output sensors. The instrument features industrial-level surge immunity and is supplied with a dome protector (DP01).

Key features

• Spectrally flat Class B (ISO 9060:2018)
• Meets IEC 61724-1 Class B system requirements
• Analog voltage output (mV range) for irradiance measurement
• Nominal sensitivity: 10 × 10⁻⁶ V/(W/m²)
• Internal Pt100 DIN Class A temperature sensor (instrument body)
• Surge immunity: level 2, test level 1 kV
• Dome protector included (model DP01)
• Passive design: very low power consumption (no internal heater)
• Optional spring-loaded leveling (with or without tube mount)

Specifications
Measurand: hemispherical solar radiation
Analog output: voltage (mV range)
Sensitivity (nominal): 10 × 10⁻⁶ V/(W/m²)
ISO 9060:2018 classification: spectrally flat Class B
Compliance: IEC 61724-1:2021 Class B system
Temperature sensor: Pt100 DIN Class A (instrument body)
Zero offset (a): < 5 W/m²
Surge immunity: level 2, test level 1 kV
Dome protector: included (DP01)
Available cable lengths: 3, 5, 10 or 20 m
Leveling: optional spring-loaded leveling, with/without tube mount
Input quantity: instrument body temperature
Temperature response (uncorrected): < ±2 % (−10 to +40 °C)
Calibration certificate: included (content limited per ISO/IEC 17025, section 7.8.1.3)
Calibration uncertainty: < 1.8 % (k = 2)
Calibration traceability: to WRR
Individual tests: temperature response and directional response reports included (directional to 95°)
Heating: no internal heater (passive instrument)

Applications and usage notes

• PV system performance monitoring and meteorological networks — suitable for sites requiring IEC 61724-1 Class B monitoring
• Direct replacement for legacy spectrally flat Class B millivolt-output pyranometers (e.g., SR15-A1)
• Environments where minimal power consumption is required (passive analog sensor)
• Specified for industrial outdoor installations with attention to surge and electrical immunity

Technical characteristics

• Model: SR100-A1
• Classification: ISO 9060:2018 spectrally flat Class B
• Compliance: IEC 61724-1:2021 Class B system
• Nominal sensitivity: 10 × 10⁻⁶ V/(W/m²)
• Analog output: voltage in mV range
• Zero offset (a): < 5 W/m²
• Temperature sensor: internal Pt100 DIN Class A (instrument body)
• Temperature response: < ±2 % (−10 to +40 °C) uncorrected
• Calibration: certificate included; uncertainty < 1.8 % (k=2); traceable to WRR
• Directional response: individual instrument report included to 95°
• Surge immunity: level 2, test level 1 kV
• Dome protector: included (DP01)
• Available cable lengths: 3, 5, 10 or 20 m
• Leveling: optional spring-loaded leveling (with/without tube mount)
• Heating: no (passive instrument)
• Typical accessories: mounting fixtures, leveling mounts and insulation disk