Item Description

The Gill MaxiMet GMX531 combines the GMX101, GMX200 and GMX300 with a Kalyx tipping bucket rain gauge. It isideal for measuring a full set of weather parameters, including precipitation in extreme heavy tropical downpour locations.

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. Additionally a Kalyx tipping bucket rain gauge with a 20m cable provides the ultimate in precipitation measurement.

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.

The result is a complete state of the art weathering monitoring solution widely used for applications such as agriculture, health & safety, transport, education and energy.

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)
0.2mm tip Kaylx rain gauge
20m Cable

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.

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

Case Studies

Our following Case Studies give an overview of how this product applies to different sectors.
Please click on the title below to read the full case study.

	Agriculture
	Aviation
	Construction
	Education
	Emergency Services
	Environmental Monitoring (with SpaceLogger Data Loggers)
	Environmental Monitoring (with Wind Systems)
	Health & Safety Monitoring
	Marine, Ships & Harbours
	Outdoor Sports
	Research
	Tower Cranes
	Transport Safety
	Weather