1 INTRODUCTION HD2015 is a reliable and sturdy bucket rain gauge, entirely constructed of corrosion resistant materials in order to guarantee its durability. To ensure accurate measure- ments even with low temperature climatic conditions or during and after precipitations of snow, a version with heating system, automatically activated around +4 °C has been developed to prevent snow deposits and ice formations.
2 TECHNICAL CHARACTERISTICS HD2015R HD2015 12 Vdc or 24 Vdc ± 10% / 50 W Power supply (to be specified when ordering) Type of output contact NC contact (opens during tipping) Resolution 0.1 – 0.2 or 0.5 mm/tip to be specified at the time of placing the order Accuracy +2.5…-2.5% in the interval 0…100 mm/h (version with 0.2 mm @ 50 mm/h nominal resolution)
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Rainfall rate (mm/h) Fig. 1 – Normalized resolution (0.2 mm @ 50 mm/h) as a function of the rainfall rate Rainfall rate (mm/h) Fig. 2 – Normalized resolution (0.5 mm @ 50 mm/h) as a function of the rainfall rate To correct the measurement depending on the rainfall rate, it is necessary to log, in addition to the number of pulses, also the instants at which the pulses occur.
3 INSTALLATION The rain gauge is supplied already calibrated at 0.1 - 0.2 or 0.5 mm of rain per tip of the bucket: the calibration value is shown on the instrument label. The instrument must be installed in an open area, away from buildings, trees, etc., ensuring that the space above is free from objects which may obstruct the rain meas- urements and placed in an easily accessible position for periodical cleaning of the fil- ter.
Fig. 3 – Electrical connections (version with heating system) 3.2 T IPPING BUCKET The tipping bucket is locked for the transport of the rain gauge. To unlock the bucket, remove the holders as shown in fig.4. For the For the transport operating mode...
Fig. 5 – Adjustment of the tipping bucket 3.3 I NSTALLATION MODES Æ 189.5 Æ 160 BIRD DISSUADER FASTENING KNOB OF THE CASING BASE WATER DRAIN FASTENING AND LEVEL ADJUSTING SCREWS HD2015.5K COLLAR TO FASTEN DATA LOGGER THE DATALOGGER TO HD2013-DB THE SUPPORT STAFF HD2003.77/40...
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M6x25 8.5 mm 208 mm (x3) Fig. 7 – Ground installation HD2015 V1.2...
4 MAINTENANCE Verify filters cleanliness periodically; check that there is no debris, leaves, dirt or any- thing else that might obstruct the flowing of water. Check that the tipping bucket con- tains no deposits of dirt, sand or any other obstruction. If necessary, the surfaces can be cleaned with non aggressive detergent.
INSTRUMENT STORAGE Instrument storage conditions: • Temperature: -30...+70 °C. • Humidity: less than 90 %RH no condensation. • In storage, avoid places where: • humidity is high; • the instrument is exposed to direct sun radiation; • the instrument is exposed to a high temperature source; •...
ORDERING CODES HD2015 Tipping bucket rain gauge, area 200 cm , for temperatures from 0 °C to +70 °C. Resolution to be specified upon request at the time of placing the order: 0.1 – 0.2 or 0.5 mm. Output contact normally closed.
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G U A R A N T E E TERMS OF GUARANTEE All DELTA OHM instruments are subject to accurate testing, and are guaranteed for 24 months from the date of purchase. DELTA OHM will repair or replace free of charge the parts that, within the warranty period, shall be deemed non efficient according to its own judgement.
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GHM GROUP – Delta OHM | Delta Ohm S.r.l. a socio unico Via Marconi 5 | 35030 Caselle di Selvazzano | Padova | ITALY Phone +39 049 8977150 | Fax +39 049 635596 www.deltaohm.com | info@deltaohm.com The quality level of our instruments is the result of the constant development of the product. This may produce some differences between the information written in this manual and the instrument you have purchased.
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GHM GROUP – Delta OHM | Delta Ohm S.r.l. a socio unico Via Marconi 5 | 35030 Caselle di Selvazzano | Padova | ITALY Phone +39 049 8977150 | Fax +39 049 635596 www.deltaohm.com | info@deltaohm.com V1.2 01/04/2020...
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