Jauge de précipitation

Jauge de précipitation


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370-380 Series all-metal precipitation gauges measure rain and/or snow in all environments using a tipping bucket mechanism. The economical tipping bucket design allows accurate, repeatable measurements, requiring no regular maintenance. Each model in the 370-380 Series is optimized to meet particular site and sampling requirements and exceeds EPA specifications.
 

Features
  • Self-emptying, dual chambered tipping bucket
  • Jeweled bearings reduce wear and friction
  • Funnel screen system prevents debris from clogging gauge
  • Stainless steel, Teflon coated bucket
  • Corrosion resistant materials throughout
  • Bubble level & adjustable feet assure proper mounting
  • Optional heating elements for frozen conditions

 

Operation
When a precise amount of precipitation is collected in one side of the bucket, gravity tips the assembly and activates a reed switch. A momentary electrical contact closure is provided for each increment of rainfall. The sample is discharged through the base of the gauge.

The optional heating elements are thermostatically controlled to melt snow and ice and avoid evaporative loss.

 

Specifications
Precipitation Gauge
Model NumberFunnel DiameterStandard CalibrationOptional Calibration
3708 inch (20.3 cm)0.01 in0.2 or 0.25 mm
3728 inch (20.3 cm)0.5 mmN/A
38012 inch (30.5 cm)0.01 in0.2 or 0.25 mm
38212 inch (30.5 cm)0.1 mmN/A
Precipitation & Snow Gauges
Model NumberFunnel DiameterStandard CalibrationOptional CalibrationPower Requirement
3758 inch (20.3 cm)0.01 in0.2 or 0.25 mm115 VAC,
315 watts
3768 inch (20.3 cm)0.01 in0.2 or 0.25 mm220 VAC,
315 watts
3778 inch (20.3 cm)0.5 mmN/A115 VAC,
315 watts
3798 inch (20.3 cm)0.5 mmN/A220 VAC,
315 watts
38512 inch (30.5 cm)0.01 in0.2 or 0.25 mm115 VAC,
315 watts
38612 inch (30.5 cm)0.01 in0.2 or 0.25 mm220 VAC,
315 watts
38712 inch (30.5 cm)0.1 mmN/A115 VAC,
315 watts
38912 inch (30.5 cm)0.1 mmN/A220 VAC,
315 watts
Heaters
Funnel240 watts, composite with built-in thermostat
Base75 watts, composite with built-in thermostat
Thermostat Set Point
Funnel and base heater 40°F (4.4°C)

 

Specifications
Common Specifications to All 370-380 Series Gauges
Operating Temperature-58°F to 122°F (-50°C to +50°C)
Accuracy±0.5% at 0.5´´/hr, ±1´´- 3´´/hr
SwitchReed switch rated at 10 mA, 28 VDC (maximum)
Physical Characteristics
Height8 inch18 in (46 cm)
12 inch20.5 in (52 cm)
Weight
(not including cabling)
8 inch Precipitation6 lbs (2.7 kg)
12 inch Precipitation7.5 lbs (3.4 kg)
8 inch Precipitation/Snow6.5 lbs (3 kg)
12 inch Precipitation/Snow11.5 lbs (5.2 kg)
FinishWhite gloss textured powder coat and clear anodized aluminum
Accessories
PN 820440Wind Screen
The improved Alter-design screen is constructed of 32 free-swinging leaves, greatly improving the accuracy of the catchment by reducing local turbulence.
Cable (for Models 375-389)
PN 1566Signal Cable Assembly; specify length in feet or meters
PN 2517Power Cable Assembly; specify length in feet or meters
Ordering Information
Specify model number, calibration factor, cable length(s),and accessories
Specifications are subject to change at any time.