Item Description

The Gill MaxiMet GMX100 is an extremely compact, robust and lightweight solution for accurately measuring precipitation. 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 extremely accurate precipitation 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: The Optical Sensor provides a General Indication only of rainfall levels for use in situations where low maintenance is required. Use a tipping bucket or equivalent with a MaxiMet (e.g. GMX531, GMX550 and GMX551) where reference quality precipitation measurements are required.

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