Class A pyranometer SR200-A1

voltage outputanalogspectrally flat

Product overview
The analog ISO 9060 spectrally flat Class A pyranometer SR200-A1 measures hemispherical solar radiation with high accuracy and low power consumption. It provides millivolt-range analog output for legacy systems and applications requiring minimal power. Internal temperature-sensor options are available for instrument-body logging and post-acquisition temperature compensation.

Key features

• Spectrally flat ISO 9060:2018 Class A pyranometer
• Analog (mV-range) output — suitable as replacement for legacy millivolt instruments
• Nominal sensitivity: 10 x 10⁻⁶ V/(W/m²)
• Zero offset (a): < 5 W/m²
• Temperature-sensor options: Pt100 DIN Class A (T1) or 10 kΩ thermistor at 25 °C (T2)
• Temperature-compensated irradiance with very low residual temperature dependence (< ±0.4 % with correction)
• Passive design for minimal power draw
• Industrial surge immunity: Level 2 (test level 1 kV)
• Dome protector included (model DP01)
• Cable lengths available: 3, 5, 10 or 20 m
• Optional spring-loaded leveling and tube mount options
• Calibration certificate included; uncertainty < 1.8 % (k = 2)
• Calibration traceable to WRR; individual temperature and directional response test reports supplied

Technical table
Measurand: hemispherical solar radiation (W/m²)
Analog output: voltage (mV range)
Sensitivity (nominal): 10 x 10⁻⁶ V/(W/m²)
ISO 9060:2018 classification: spectrally flat Class A
Compliance: IEC 61724-1:2021 Class A system
Temperature sensor: T1 = Pt100 DIN Class A; T2 = 10 kΩ thermistor (25 °C)
Surge immunity: Level 2, test level 1 kV
Dome protector: included (DP01)

Additional specifications

• Zero offset (a): < 5 W/m²
• Cable lengths: 3 / 5 / 10 / 20 m
• Leveling: optional spring-loaded leveling, with or without tube mount
• Input quantity: instrument body temperature (internal measurement available)
• Temperature response: < ±1 % (-10 to +40 °C) uncorrected; < ±0.4 % (-30 to +50 °C) with correction
• Calibration uncertainty: < 1.8 % (k = 2)
• Calibration traceability: WRR; individual instrument test reports included
• Heating: none (passive)
• Earthing terminal: included (electrical safety)

Applications

• PV system performance monitoring — compliant with IEC 61724-1 Class A system requirements
• Meteorological stations and solar energy research requiring spectrally flat Class A response
• Replacement of legacy mV-output Class A pyranometers (e.g., SR20 and similar models)
• Industrial environments requiring improved surge immunity and earthing provisions

Notes
Internal instrument-body temperature measurement (Pt100 or 10 kΩ thermistor) supports post-acquisition temperature compensation to reduce temperature dependence of irradiance readings. The passive design minimizes power draw. Accessories (leveling mounts, mounting fixtures, dome protector) are available. Each instrument is supplied with calibration documentation and individual test reports for temperature and directional response.

Technical specifications

• Model: SR200-A1
• Measurand: hemispherical solar radiation (W/m²)
• Analog output: voltage (mV range)
• Sensitivity (nominal): 10 x 10⁻⁶ V/(W/m²)
• Zero offset (a): < 5 W/m²
• ISO 9060:2018 classification: spectrally flat Class A
• Compliance: IEC 61724-1:2021 Class A system
• Temperature sensor options: Pt100 DIN Class A (T1) or 10 kΩ thermistor (T2)
• Temperature response: < ±0.4 % with temperature correction
• Calibration uncertainty: < 1.8 % (k = 2)
• Calibration traceability: WRR
• Surge immunity: Level 2 (test level 1 kV)
• Dome protector: included (DP01)
• Cable lengths: 3 / 5 / 10 / 20 m
• Leveling: optional spring-loaded leveling; optional tube mount
• Earthing terminal: included (electrical safety)