GMX551 Compact Weather Station Description
The Gill MaxiMet GMX551 combines the GMX101, GMX200 and GMX300 with the addition of a side connector to add any rain gauge, the measurements are included in the data string of the sensor.
Three double-louvered naturally aspirated radiation shields deliver long term highly accurate weather data. Parameters measured include temperature, relative humidity, barometric pressure, absolute humidity, air density and wet bulb temperature.
The thermal sensor protected by a single glass dome records the quantity of light per metre calculating solar radiation (W/m2), sunshine hours, twilight, sunrise, sunset, position of sun, solar noon and angle of tilt.
The solid state ultrasonic sensor provides extremely accurate wind speed and direction measurements. An electronic compass comes as standard which delivers apparent wind, WMO wind averages and gust data.
The optional GPS adds the benefit of a true wind measurement, height above sea level, latitude and longitude, and simplifies installation by automatically finding north.
Richard Paul Russell Ltd. can connect the sensor to the WeatherFile.com website where data can be viewed using any internet connected device and downloaded for detailed analysis in a .CSV file format.
Applications
• Solar panel performance
• Building and industrial controls
• Authorities
• Transport
• Coastal
• Agricultural
• Safety
• Educational
• Commercial
• Energy
Features
• Temperature, humidity and pressure sensor
• Naturally aspirated
• UV stable radiation shield
• Dust and precipitation protected
• Solar radiation sensor/pyranometer
• Measures light in watts per metre2
• Records sunshine hours
• Complies with ISO 9060 and WMO guidelines
• Wind sensor
• Wind speed & direction
• Apparent wind
• WMO wind averages, gusts
• Built in compass
• GPS *Optional provides true wind, latitude, longitude and height above sea level
• Precipitation
• Side connector to add any rain gauge (Kalyx or ARG314 recommended)
• Lightweight and compact
• Robust construction
• Low power consumption
• No moving parts
• Extremely low maintenance
• 24 months warranty
Specifications
| Temp, Humidity & Pressure |
Air Pressure / Temperature |
| Relative / Absolute humidity |
| Naturally aspirated UV stable radiation shield |
| Protection against wind-blown precipitation/dust |
| Solar Radiation |
Complies with ISO 9060 & WMO Guidelines |
| Output in watts per metre2
|
| 180° hemispherical field of view |
| Records sunshine hours |
| Integrated Hukseflux LP02 pyranometer |
| Glass dome |
| Wind |
Wind speed & direction |
| Apparent and true wind (with GPS) |
| WMO wind averages and gust |
| Compass |
| GPS (Option) |
Height above sea level m |
| Sunrise/sunset |
| Position of the sun |
| Twilight |
| Solar Noon |
| MSL pressure |
| Precipitation (Input) |
integrated side connector to add any tipping rain bucket gauge (Kalyx or ARG314 recommended) |
| Parameters |
Solar radiation W/m2
|
| Sunshine hours hrs |
| Temperature °C / °F / °K |
| Relative humidity % Rh |
| Barometric pressure hPa, mbar, mm Hg, In Hg |
| Wet bulb temperature °C / °F / °K |
| Absolute humidity g/m3
|
| Air density kg/m3 |
| Precipitation mm/hr, mm/total, in/hr, in/total |
| Wind speed m/s, hm/hr, mph, kts, ft/min |
| Wind direction ° |
| Wind chill °C / °F / °K |
| True/apparent wind |
| Angle of Tilt |
| Outputs RS232, 422, 485 (ASCII), SDI-12, NMEA, MODBUS, Analogue (option) |
| Wind Speed |
Range |
0.1 m/s to 60 m/s |
| Accuracy |
± 3% to 40 m/s,
± 5% to 60 m/s |
| Resolution m/s |
0.01 |
| Starting Speed |
0.1 m/s |
| Sampling Rate |
1 Hz |
| Units |
m/s, km/hr, mph, kts, ft/min |
| Wind Direction |
Range |
0-359° |
| Accuracy |
± 3% to 40 m/s,
± 5% to 60 m/s |
| Resolution |
1° |
| Sampling Rate |
1 Hz |
| Units |
Degrees |
| Temperature |
Range |
-40°C to +70 °C |
| Resolution |
0.1 |
| Accuracy |
± 0.3°C @ 20°C |
| Sampling Rate |
1 Hz |
| Units |
°C, °F, °K |
| Humidity |
Range |
0-100% |
| Resolution |
1% |
| Accuracy |
± 2% @ 20°C (10%-90% RH) |
| Sampling Rate |
1 Hz |
| Units |
% Rh, g/m3
|
| Dew Point |
Range |
-40°C to +70°C |
| Resolution |
0.1 |
| Accuracy |
± 0.3°C @ 20°C |
| Units |
°C, °F, °K |
| Sampling Rate |
1 Hz |
| Pressure |
Range |
300 to 1100 hpa |
| Resolution |
0.1 hPa |
| Accuracy |
± 0.5 hPa @ 25°C |
| Sampling Rate |
1 Hz |
| Units |
hPa, mbar, mmHg, inHg |
| Precipitation |
Measurement type |
TBRG (Kalyx) |
| Range |
0-1000 mm/hr |
| Precipitation Resolution |
0.2 mm |
| Accuracy |
2% |
| Sampling Rate |
1 Hz |
| Units |
mm/hr, mm/total, in/hr, in/total |
| Heating |
n/a |
| Output |
Contact closure via 20m cable to GMX |
| Global Solar Radiation |
Wavelength Sensitivity |
300 to 3000 nm |
| Output Range |
0 to 1600 W/m2
|
| Resolution |
1 W/m2
|
| DIN Standard |
ISO 9060 Second Class |
| Sampling Rate |
1 Hz |
| Units |
W/m2
|
| Outputs |
Output rate |
1/s, 1/min, 1/hr |
| Digital Comms Modes |
Serial RS232, RS422, RS485, SDI-12, NMEA, MODBUS, ASCII |
| Analogue Outputs |
Available via seperate optional device |
| Power |
Power Supply |
5 to 30 Vdc |
| Power (Nominal) 12 Vdc |
25 mA continuous high mode 0.7 mA eco-power mode (1 hour polled) |
| Environmental Conditions |
IP Rating |
66 |
| Operational Temperature Range |
-40°C to +70°C |
| EMC Standard |
BS EN 61326 : 2013
FCC CFR47 parts 15.109 |
| CE Marking |
Yes |
| RoHS compilant |
Yes |
| Weight |
0.8 Kg (+1.2 kg Rain Gauge inc Cable) |
| Origin |
UK |
Precipitation Care & Maintenance
NOTE: the temperature, humidity and barometer sensors are located internally and are not maintainable or replaceable by a user. Consideration should be given to checking the pressure readings against a standard every 12 months and maintaining the temperature and humidity sensor every 12-24 months. If required you can return the MaxiMet to Richard Paul Russell Ltd to check the barometer calibration, please contact us at sales@r-p-r.co.uk for more details.
Documentation
Brochures
User Manual
Data Sheet
