Campbell Scientific 380, 385, 380M, 385M Met One Rain Gages - Manual (Page 6)

Met One Rain Gage Models 380 and 385
2. Specifications
MODEL 380/385 RAIN GAGE
Funnel: 12 inch (30.5 cm)
Accuracy:
±
0.5% < 0.5"(1.27 cm)/hr rate
±
2.0% < 3.0"(7.62 cm)/hr rate
Resolution:
380/385
0.01 inch
Environmental Conditions:
Temperature: 0°C to +50°C
Humidity: 0 to 100%
Dimensions:
Weight: 7 pounds (3.2 kg) w/ 50 ft. signal cable
Height: 14" (35.5 cm)
Diameter: 12" (30.5 cm)
MODEL 385
Specifications same as Model 380 unless listed below.
Environmental Conditions:
Temperature: -20°C to +50°C
Humidity: 0 to 100%
Weight: 12.2 pounds (5.57 kg) w/ 50' power/signal cable
Heater Power Specification:
Voltage: 115 VAC (50/60 Hz)
Current: 5 amps maximum
Heater: 300 W Cartridge Element
The black outer jacket of the cable is Santoprene ® rubber. This
compound was chosen for its resistance to temperature extremes,
moisture, and UV degradation. However, this jacket will
support combustion in air. It is rated as slow burning when
tested according to U.L. 94 H.B. and will pass FMVSS302.
Local fire codes may preclude its use inside buildings.
NOTE
3. Installation
3.1 Siting
The rain or snow gage should be mounted in a relatively level spot which is
representative of the surrounding area. The lip of the funnel should be
horizontal and at least 30 inches above the ground. Install the snow gage high
enough to prevent burial by snow during the winter months. The ground
surface around the rain gage should be natural vegetation or gravel. The gage
should not be installed over a paved or concrete surface. Refer to Figure 3-1
for an illustration of gage installation.
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