Order-No: S73100 - Sensor without heating
S73100H - Sensor with heating
S73000 - Bird protection
Description
The YOUNG Tipping Bucket Rain Gauge meets the speci cations of the World Meteoro-
logical Organization (WMO).
The design uses a proven tipping bucket mechanism for simple and effective rainfall
measurement. The bucket geometry and material are specially selected for maximum
water release, thereby reducing contamination and errors. Catchment area of 200 cm²
and measurement resolution of 0.1 mm meet the recommendations of the WMO. Le-
veling screws and bulls-eye level are built in for easy and precise adjustment in the
eld. Measured precipitation is discharged through a collection tube for veri cation of
total rainfall.
Model S73100H is heated for operation in cold temperatures. An unheated version,
S73100, is available for use in moderate climates. To discourage birds from perching on
the funnel rim, accessory bird wire assembly may be attached to the gauge.
Location of rain gauge
Precipitation measurement is greatly affected by location of the rain gauge. Select a
location that is naturally protected from gusts and crosswinds. Avoid a site prone to
contamination from debris such as falling leaves, dirt, etc...
Precipitation Sensor Young
Dimensional drawing Installation
The Model 52202H is fully calibrated at the factory. The movable bucket
is retained to prevent damage during shipment. On installation, the fol-
lowing procedure should be followed.
1. Loosen 3 screws that retain housing to base assembly. Carefully lift
housing free of base.
2. Remove shipping retainer from bucket. Verify that bucket tips freely.
3. Attach sensor wires and heater wires (when used) to terminals as
shown in wiring diagram.
4. Adjust leveling screws until bulls-eye level is centered.
5. Replace housing. If heated, heater wires (gray) must be attached to
terminals C & D before housing is fully engaged. Retighten screws.
Maintenance
The rain gauge should be inspected periodically. Accumulated dirt and
debris should be cleaned from funnel, screen and bucket assembly.
Electrical connections should be inspected and cleaned. Leveling screws
may be readjusted at this time. Periodic recalibration may be desirable to
ensure measurement accuracy.
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Precipitation Sensor Young
Specications
Charateristic
Desciption / Value
Collector surface 200 cm
2
Resolution 0.1 mm per tipping-bucket pulse
Accuracy 2 % up to 25 mm/hr
Measuring range max. 11 mm/min.
Measuring principle tipping-bucket
Electrical output Magnetic reed switch (N.O.), rating 24 VAC/DC, 500 mA
Ambient temperature -20 ... +50 °C (with heating)
Heating 18 W, 24 VAC
Mounting Clamp for 1” iron pipe (o.d. 1.24”) or 3 bolts on 160 mm dia. circle
Dimensions Ø 180 x 300 mm (390 mm with mounting base)
Manufacturer Young
Accessories Module M83200 or M83570
Sensor connection to Ammonit Meteo-40 data logger
Sensor Plug
Pin No.
Ammonit Cable
Wire Colour
Meteo-40
Counter
Supply
Sensor
Precipitation
Pulse output
A white
CNT, 6k8
(Switch: 5 V via 6k8 to CNT, Pull-up resistor)
B black Main Ground
Heating
C orange, orange 24 VAC/DC
D violet, violet
Cable type without heating: LiYCY 2 x 0.25 mm²
Connect the shield logger-sided to Ground (GND)
Sensor connection diagram to Ammonit Meteo-40 data logger
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