Gill MaxiMet GMX541 Compact Weather Station

GMX541 Compact Weather Station Description

The Gill MaxiMet GMX541 combines the GMX101, GMX200 and GMX300 with the GMX100 optical rain gauge. It is ideal for measuring a full set of weather parameters in remote locations due to its low maintenance requirement.

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 Optical rain gauge supplied provides excellent performance in a low maintenance package. The Optical RG connects via a 20m cable (included).

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.

NOTE: This optical sensor provides a general Indication only of rainfall levels for use in situations where low maintenance is required. Use a tipping bucket gauge (ARG314 or Kalyx) or equivalent with a GMX MaxiMet sensor (e.g. GMX531, GMX550 and GMX551) where reference quality precipitation measurements are required.

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 sensor
    • Optical rain gauge
    • No moving parts unlike tipping bucket rain gauges
• Lightweight and compact
• Robust construction
• Low power consumption
• No moving parts
• Extremely low maintenance
• 24 months warranty

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)	0.08 mm tip Optical rain gauge (customer selectable)
	20m Cable
Parameters	Solar radiation W/m2
	Sunshine hours hrs
	Solar Noon
	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	0.01 m/s to 60 m/s
	Accuracy	± 3% to 40 m/s, ± 5% to 60 m/s
	Resolution m/s	0.01
	Starting Threshold	0.01 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°
	Starting Threshold	0.05 m/s
	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	Optical RG
	Range	0 to > 300 mm/hr
	Precipitation Resolution	0.08 mm (Customer Selectable)
	Repeatability	3%
	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	64 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 (+1.1 kg Rain Gauge inc 20m 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

Choose your sensor based on the parameters you want to measure.

GMX100

GMX101

GMX200

GMX240

GMX300

GMX301

GMX400

GMX500

GMX501

GMX531

GMX541

GMX550

GMX551

GMX600

Wind Speed

Wind Direction

Air Temperature

Humidity

Pressure

Dew Point

Wet Bulb Temperature

Precipitation (Optical Rain Gauge)

Precipitation (Tipping Rain Bucket Gauge)

Solar Radiation

Compass

Optional GPS Positioning

Side Connector for Rain Gauge

If you want to discuss a bespoke system specification or have any questions call
our technical team on +44 (0) 1590 641223 or email sales@r-p-r.co.uk