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How it works
MS-21SH
Pyrgeometers
Research-grade pyrgeometer with WISG traceable calibration
Research-grade, accurate, and robust, the MS-21SH measures longwave downwelling radiation and longwave net radiation in a wide spectral band and delivers superior stability independent of the sensors’ operating temperature.
MS-21SH
Designed to raise the bar, the MS-21SH Pyrgeometer is research-grade, accurate, robust and delivers superior stability independent of the sensors’ operating temperature. Based on a new design concept and built for consistency, the MS-21SH minimises temperature differences and suppresses window heating errors.
Whatever the conditions, the MS-21SH measures longwave downwelling radiation and longwave net radiation in a wide spectral band without needing a sun tracker with a shading device or shadow ring. It features a silicon meniscus dome with solar blind interference filter and hard carbon coating, a new thermal coupling design, onboard temperature compensating electronics, and a unique aluminium alloy sun shield.
With a 5-year Warranty, World Infrared Standard Group (WISG) traceable calibration, and PT-100/4W IEC60751 Class A Industrial platinum resistance thermometers and temperature sensors; the MS-21SH achieves the highest standards for quality, accuracy, and reliability.
The MS-21SH built on that achievement with the addition of Modbus 485 RTU and SDI-12 digital outputs for improved compatibility with data loggers and SCADA systems; also introducing new internal diagnostic systems, now standard to all S-Series sensors, offering visibility over internal temperature, humidity, tilt, and roll angle; helping to ensure optimum performance without the need for regular physical checks.
These features, along with a new low power consumption integrated solid-state window heater make the MS-21SH one of the best value sensors available; ideal for hard to reach locations, and monitoring networks with restricted access.
Based on EKO’s universal sensor design, the MS-21SH is robust, weather-proofed and compatible with the MV-01 Ventilator & Heater perfect for for continuous outdoor measurement, whatever the conditions.
Each unit comes with a 5-year warranty and World Infrared Standard Group (WISG) traceable calibration assuring top-quality performance and reliability for every application.
Key Features:
- NEW improved thermal design, outstanding low window heating
- Smart Sensor, Modbus 485, SDI-12 output
- WISG Traceability Excellent Stability
- 4.5µm – 42µm flat spectral response
- Integrated solid stated dome heating
- EKO Universal Sensor Design
- 5-year Warranty & EKO Quality Guarantee
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Frequently Paired Together
| ISO 9060:2018 | |
|---|---|
| Response time 95% | <0.5 Sec |
| Zero offset A – Thermal Radiation (200W/m²) | |
| Zero offset B – Temperature change (5K/hr) | |
| Zero offset C – Total zero off-set | |
| Non-stability (change/year) | |
| Non-linearity (100 to 1000W/m²) | |
| Directional Response (at 1000W/m² | 0 to 80°) | |
| Spectral Error | |
| Temperature response (-20°C to 50°C) | |
| Tilt Response (0-90° | 1000W/m²) | |
| Additional Signal Processing Error | < 1 W/m² |
| Technical Specifications : | |
| Wavelength Range | 285 to 3000 nm |
| Irradiance range (W/m²) | |
| Signal Output | |
| Sensor Diagnostic | |
| Operating temperature | |
| Supply voltage | |
| Power Consumption | |
| Ingress protection | IP67 |
| Calibration traceability / uncertainty | |
| Standard Cable Length | |
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