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Seaward SS200LR Solar Irradiance Meter

Seaward
SKU: SEAWSS200LR
  • Ideal for both solar photovoltaic and solar thermal installations
  • Transmits live irradiance and temperature data wirelessly up to 150 metres
  • Compatible with Seaward PV:1525 and PV:SYNC Mobile reporting software
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Seaward SS200LR Solar Irradiance Meter

The Seaward SS200LR Solar Irradiance Meter is a robust handheld instrument made for solar photovoltaic (PV) and solar thermal professionals who need to carry out accurate and reliable on-site solar surveys. It is exclusively designed for seamless use with the Seaward PV1525 Solar PV Tester.

The SS200LR combines multiple essential measurement functions for system design, commissioning and certification, which helps installers and engineers to confidently confirm optimal installation conditions. It uses a photovoltaic reference cell to measure solar irradiance and delivers highly accurate and repeatable readings in W/m² or BTU/hr-ft².

In addition to irradiance measurement, the SS200LR comes with a built-in inclinometer to calculate the roof pitch, a compass to identify roof orientation, along with integrated thermometers to measure ambient air temperature and PV module temperature. These features make it an invaluable all-in-one survey tool that reduces the need to have multiple instruments on site.

The SS200LR introduces a wireless connectivity of up to 150 metres thanks to the Seaward PV1525 Solar PV Tester, allowing real-time transmission of irradiance, ambient, and module temperature data during electrical testing. This wireless testing adheres to IEC 62446 standards, ensuring that all required environmental data is captured alongside electrical test results. The combined dataset can then be loaded straight into SolarCert software to allow seamless report generation, system documentation and certification.

A built-in data logging function with a USB interface allows for longer-term site evaluation where users can record irradiance and temperature values at defined intervals over periods ranging from hours to days. This makes it ideal for assessing site conditions or monitoring system performance over time, with the logged data easily downloaded to a PC for further analysis. Its durable design, advanced connectivity, and enhanced functionality make it a key component of Seaward’s next-generation solar testing platform.

Solar Survey Comparison

  SS 100 SS 200R SS:200LR
IEC 62446 compliant ✓ ✓ ✓
Irradiance measurement (using solar reference cell) ✓ ✓ ✓
Compass function ✓ ✓ ✓
Roof pitch measurement ✓ ✓ ✓
Ambient temperature ✓ ✓ ✓
PV module temperature   ✓ ✓
Datalogging function   ✓ ✓
Wireless connectivity (Range)   30 m Line of sight 150 m Line of sight
Max irradiance measurement   1250 W/m² 1500 W/m²
Compatible instrument   PV150+ / PV200 / Solar Utility Pro PV1525

Key Features

  • Longer range wireless connectivity
  • Accurately measure solar irradiance as required by IEC 62446
  • Built in digital compass to measure roof orientation
  • Built in digital inclinometer to measure roof pitch
  • Thermometer capable of measuring both ambient air and PV module temperature
  • Data logging facility with USB interface for downloading results to a PC for further analysis
  • Capable of providing a comprehensive solar site survey
  • Data logging function with a USB interface for downloading to a PC (as CSV file)
  • Irradiance and temperature data recorded at user-defined intervals over several hours or days
  • Versatile display suitable for both PV and thermal system surveys
  • Exclusively designed for use with the PV tester PV:1525

What's In The Box?

  • 1 × SS:200LR Wireless Irradiance Meter
  • 2 × AA batteries
  • 1 × USB download cable
  • 1 × Solar Survey Temperature Probe
  • 1 × Quick Start Guide
  • 1 × Calibration certificate
  • 2 × Declaration (CE, UKCA)
Specification

Irradiance Measurement

  • Display range: 100 -1999 W/m2 / 30 - 633 BTU/hr-ft2
  • Measurement range: 100 - 1500W/m2 / 30 - 475 BTU/hr-ft2
  • Resolution: 1 W/m2 / 1 BTU/hr-ft2

Temperature Measurement

  • Display range:  –30 °C - +125 °C
  • Measuring range: –30 °C -  +125 °C
  • Resolution: 1°

Compass Bearing

  • Display range: 0° - 360°
  • Measuring range: 0° - 360°
  • Resolution: 1°

Inclinometer

  • Display range 0° - 90°
  • Measurement range 0° - 90°
  • Resolution: 1°

Environmental Conditions

  • Environment: Dry, without moisture condensation indoor or outdoor use
  • Operating temperature: +0 °C - +40 °C / +32 °F - +104 °F
  • Storage: –25 °C - +65 °C / –13 °F - +149 °F
  • Dry, without moisture condensation; without battery pack

Power Supply

  • Power source: 2 × AA Alkaline batteries
  • Battery life: >20,000 readings
  • Auto power down: After
    30 min of measured darkness
    15 min from switch on with no initial pairing to a PV:1525 and no button presses
    12 hours after first switch on
  • Onboard memory: 5000 datasets

Electrical Safety

  • Pollution degree: 2

Electromagnetic Compatibility (EMC)

  • Interference emission: IEC 61326-1, class A
  • Interference immunity: IEC 61326-1

Connectivity

  • Sample rate: 1 - 60 minutes (user-definable)
  • Connection to PV:1525: Wireless (range c. 150 m – line of sight); Long-Range RF
  • Frequency band(s): 433.375 MHz - 434.625 MHz
  • Transmit power range(s): 4.89 dBm ERP
  • Modulation type(s): CSS
  • Channel spacing(s): 250 kHz
  • Radio spectrum efficiency (Art. 3.2): ETSI EN 300 220-2 V3.2.1
  • Antenna type and gain: FPC antenna, 2.8 dBi peak gain

Mechanical Design

  • Weight: Approx. 0.25 kg / 0.6 lb (without batteries)
  • Dimensions: Approx. 14.8 cm × 8.0 cm × 3.3 cm / 5.8“ × 3.2“ × 1.3“
  • Protective system: Housing: IP40 as per IEC 60529
    (Protection against ingress of solid foreign objects: ≥ 1.0 mm / 0.039” Ø; protection against ingress of water: not protected)
  • Display: Custom LCD
Label Type Size Download
pdf Seaward SS200LR Solar Irradiance Meter Datasheet pdf 618.4 KB Download