EKO Instruments
EKO Instruments MS-40 Pyranometer
The MS-40 is an ISO 9060:2018 Class C pyranometer, and the most cost-effective irradiance sensor for agro-meteorological networks and professional small-scale PV sites where solar radiation is taken seriously.
Overview
The MS-40 is an ISO 9060:2018 Class C pyranometer based on EKO's universal sensor platform. It is the most cost-effective irradiance sensor to measure Solar irradiance across the entire solar spectrum and is designed for agro-meteorological networks and professional small scale PV sites.
Featuring an analog (mV) output, every MS and S-Series Pyranometer, including the MS-40, is compatible with the optional MV-01 ventilator & heater and albedo mounting kit and is manufactured with strict quality controls and performance standards.
EKO provides a unique calibration compliant with the international standards defined by ISO 17025 and IEC 9847.
The sensor also has a two year recommended recalibration interval and no requirement to change the desiccant.
Key Features
- Spectrally flat
- Analog output
- ISO 17025 certified calibration
- Optional MV-01 Ventilator & Heater
Comparison
Comparison of EKO Instruments Pyranometers
| MS-40 | MS-40S | MS-60 | MS-80 | MS-80S | MS-80SH | ML-01 SI | |
| ISO 9060:2018 | Class C | Class C | Class B | Class A | Class A | Class A | Class C |
| Response Time 95% | < 18 Sec | < 18 Sec | < 18 Sec | < 0.5 Sec | < 0.5 Sec | < 0.5 Sec | < 1 msec |
| Wavelength Range | 285 - 3000 nm | 400 to 1100 nm | |||||
| Directional response (at 1000W/m² | 0 to 80°) | ± 20 W/m² | ± 20 W/m² | ± 18 W/m² | ± 10 W/m² | ± 10 W/m² | ± 10 W/m² | < 10 W/m² |
| Signal Output | N/A | Modbus 485 RTU / 4-20mA / 0-1V | N/A | ±10µV/W/m² | Modbus 485 RTU / 4-20mA / 0-1V | Modbus 485 RTU / SDI-12 | Analog (mV) |
| Ingress protection | IP67 | Equivalent to IP67 (IEC60529, JIS C0920) | |||||
| Power Consumption | 0W | <0.2W (Digital), <0.7W(Analog) | N/A | 0W | <0.2W (Digital), <0.7W(Analog) | < 1.4 W | N/A |
| Pyranometer Type | Thermopile Pyranometer | Si-Pyranometer | |||||
| IEC 61724-1:2021 | IEC Class C | IEC Class C | - | IEC Class A | - | IEC Class A | IEC Class C |
Downloads
| ms-40-product-sheet | Downloadms-40-product-sheet |
|---|
Related Products

EKO Instruments
EKO Instruments MS-80SH Pyranometer
With integrated high-efficiency dome heating, the MS-80SH is the new standout choice for value, accuracy, speed, reliability and IEC 61724-1:2021 Class A…
Learn More
EKO Instruments
STR-21G Sun Tracker
A single-arm, 2-axis sun tracker with an easy, fully automated setup procedure and low power consumption, the STR-21G is built to deliver unparalleled…
Learn More
EKO Instruments
STR-22G Sun Tracker
From sunrise to sunset the compact STR-22G guarantees accurate tracking and pointing of the attached solar sensors, automatically adjusting to the sun’s…
Learn More
EKO Instruments
STR-32G Sun Tracker
The heavy-duty double-arm STR-32G Sun Tracker is the same size as other STR series sun trackers, but can tackle higher torque and x4 the load without…
Learn More