The GMX400 has an integrated optical rain gauge that automatically senses water hitting its outside surface and provides measurements based on the size and number of drops. Algorithms interpret this data and simulate the output of a tipping bucket rain gauge in a serial format. The optical rain gauge has no moving parts associated with tipping bucket gauges.
Features
Overview
A combined temperature, humidity, pressure instrument and precipitation instrument mounted inside three double louvered, naturally aspirated radiation shields with no moving parts. The results are high performance across each measurement over long periods of time.
Technical
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 0.01
Accuracy ± 2% @ 20°C (10%-90% RH)
Sampling Rate 1 Hz
Units % Rh, g/m3, g/Kg
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
Resolution 0.1 hPa
Accuracy ± 0.5 hPa @ 25°C
Sampling Rate 1 Hz
Units hPa, bar, mmHg, inHg
PRECIPITATION
Measurement type Optical
Range 0-150 mm/hr
Precipitation Resolution 0.2 mm
Accuracy 0.02
Sampling Rate 1 Hz
Units mm/hr, mm/total, mm/24 hr, in/hr, in/total, in/24 hr
Heating yes
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 compliant YES
Weight 0.7 Kg
POWER
Power Supply 5 to 30 Vdc
Power (Nominal) 12 Vdc
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 separate optional device
Documents