Item Description

The Gill MaxiMet GMX301 combines the GMX300 and GMX101 into a single unit, is extremely compact, robust and lightweight, enabling accurate measurement of a wide range of weather parameters and solar radiation.

Three double-louvered naturally aspirated radiation shields deliver long term highly accurate data. Parameters measured include temperature, relative humidity, barometric pressure, absolute humidity, air density and wet bulb temperature.

A 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 result is an extremely durable and cost effective weather station widely used for applications such as solar panel management, agriculture, health & safety, transport, education, energy and building controls. Richard Paul Russell Ltd. can connect the sensor to the WeatherFile website where data can be viewed using any internet connected device and downloaded for detailed analysis in a CSV file format.

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

Parameters
Solar radiation w/m2
Sunshine hours hrs
Solar Noon 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
Angle of Tilt
Outputs RS232, 422, 485 (ASCII), SDI-12, NMEA, MODBUS, Analogue (option)

GPS (Manual)
Height above sea level m
Sunrise/sunset
Position of the sun
Twilight
Solar Noon
MSL pressure

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

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	5.5 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	0.6 Kg
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.

User Manual
	MaxiMet User Manual - Issue 4

Data Sheet
	MaxiMet GMX 100
	MaxiMet GMX 101
	MaxiMet GMX 200
	MaxiMet GMX 300
	MaxiMet GMX 301
	MaxiMet GMX 400
	MaxiMet GMX 500
	MaxiMet GMX 501
	MaxiMet GMX 531
	MaxiMet GMX 541
	MaxiMet GMX 550
	MaxiMet GMX 551
	MaxiMet GMX 600
	MaxiMet GMX 700