Gill MaxiMet GMX100 Precipitation Sensor

GMX100 Precipitation Sensor Description

The Gill MaxiMet GMX100 is an extremely compact, robust and lightweight solution for accurately measuring rainfall. The integrated optical rain gauge senses rainfall as it hits its surface automatically measuring the raindrops size and quantity. It then records the data from which it calculates and formats the output as if a traditional tipping bucket rain gauge in serial format.

The result is an accurate rainfall sensor that has no moving parts, requires virtually no maintenance and when linked to the WeatherFile website will automatically record data that can be viewed from any internet connected device.

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 (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

• Building and industrial controls
• Authorities
• Transport
• Coastal
• Agricultural
• Safety
• Educational
• Commercial
• Energy

Features

• Optical rain gauge
• Lightweight and compact
• Real time output
• Robust construction
• Low power consumption
• No moving parts unlike tipping bucket rain gauges
• Simple and easy to install, 1 unit fit and forget
• Extremely low maintenance
• 24 months warranty

Precipitation	Rainfall total
	Rainfall intensity
	Rainfall Y/N
	Emulated tipping bucket
	Integrated heater
	No moving parts
	0.08 mm tip Optical Rain Gauge (customer selectable)
Parameters	Precipitation mm/hr, mm/total, in/hr, in/total
	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
Precipitation	Measurement type	Optical
	Range	0 to > 300 mm/hr
	Precipitation Resolution	0.08 mm
	Repeatability	3%
	Sampling Rate	1 Hz
	Units	mm/hr, mm/total, mm/24 hr, in/hr, in/total, in/24 hr
	Heating	Yes
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 seperae optional device
Power	Power Supply	5 to 30 Vdc
	Power (Nominal) 12 Vdc	42 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	0.3 Kg
	Origin	UK

Precipitation Care & Maintenance

Users should clean the plastic dome with a soft, lint free cloth and where necessary with a non-aggressive cleaning solution ideally once a week. Where this is not possible, cleaning should be done during regularly- scheduled visits to the sensor and site. It is recommended that the rain gauge sensor should be cleanred every 3 months as a minimum.

Users can check operation of the rain gauge by performing a simple test of functionality by spraying some water using a mist nozzle similar to that used in many households for watering plants. The MaxiMet rain gauge should register incremental rain fall when sprayed with water.

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