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Universal Precipitation Gauge: Series 5-780/5915
RECORDING AND TRANSMITTING
BUILT-IN RECORDER
RUGGED, ALL-WEATHER DESIGN
HIGH ACCURACY
OVERFLOW PROTECTION
CORROSION RESISTANT CONSTRUCTION
UNATTENDED RECORDING UP TO 35 DAYS
POTENTIOMETRIC OUTPUT FOR DATA LOGGING OR REMOTE RECORDING
Specifications | Ordering Information
The Universal recording & transmitting precipitation gauge converts the weight of collected precipitation into the equivalent depth of accumulated water in conventional units of inches or millimeters. An 8-inch (20.3cm) diameter, knife-edge orifice collects all forms of precipitation. Rain travels through a funnel into the galvanized weighing bucket. The funnel is removed during the winter season to collect snow. When sub-freezing temperatures are expected, anti-freeze is added to the bucket.
A dual traverse system is used to record the accumulated precipitation on a rotating chart. Half of the gauge capacity is recorded by the upward traverse of the pen, which is dampened by a dash pot, and the other half is recorded by the downward traverse. This dual traverse system permits extended gauge capacity without sacrificing chart resolution. Gauge capacity of 12 inches (300 mm) is standard, but other gauge capacities also available.
Potentiometric output is available for the purpose of transmitting data. A precision gear train produces a resistance change proportional to the amount of rainfall received.
Specifications
Capacity.........up to 20"(500mm), depending on model
Accuracy........0.5% of full scale
Orifice Diameter....8.00"(20.3 cm)
Recording Output
NWS Spec. 450.2201,2203
Sensitivity......0.1% of full scale
Chart Accuracy...14 min/week
Transmitting Output
Sensitivity......0.2% of full scale
Potentiometer Resistance.....25K ohms
Full Scale Resistance..21K ohms
Potentiometer Current........5.0mA max.
Gauge finish.....Aluminum Lacquer
Size............14" Dia. x 35.5" H (35.6 x 90 cm)
Weight..........25lbs.(11.3kg)
Shipping Weight..36lbs.(16.3kg)
Ordering Information
| Range |
Record only |
Transmit only |
Record & Transmit |
4.8"DT |
5-780-4.8 |
5915-4.8 |
5915R-4.8 |
12"DT |
5-780 |
5915-12 |
5915R-12 |
20"DT |
5-780-20 |
5915-20 |
5915R-20 |
300mmDT |
5-780-4.8 |
5915-300 |
5915R-300 |
500mmDT |
5-780-500 |
5915-500 |
5915R-500 |
When ordering, specify spring wound or electric (battery powered) chart drive, and select a set of charts from the chart table.
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| Chart Sets Available |
Chart Period
Hrs/Rev |
Gauge Range |
4.8" DT |
12" DT |
300mm DT |
20" DT |
500mm DT |
6 |
5-4048B |
5-4041-B |
15660 |
|
|
12 |
|
5/4042-B |
|
|
|
24 |
5-4049-B |
5-4047-B |
5-4047-MM |
|
|
48 |
|
5-4044-B |
|
|
|
96 |
|
5-4045 |
|
|
|
168 |
|
|
|
5-4068 |
16212 |
192 |
5-4050-B |
5-4046-B |
5-4046-MM |
|
|
861* |
|
15668 |
15620 |
15669 |
16217 |
100 Charts/Set Except Where Indicated
*25 Charts/Set with 861 Hours, For Use With Electric Chart Drive Only |
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![[img of universal rain gauge]](../_media/client/photos/precipitation/univ.gif)
![[img of universal rain gauge with the cover removed]](../_media/client/photos/precipitation/univbw.gif)