ISPRA Istituto Superiore per la Ricerca e la Protezione Ambientale

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26,400,778 VISITS SINCE 5/1/2011  1 CONNECTED USERS

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National Tidegauge Network

General information

Networks

Tidegauge

Anomalus waves

Levelling

Stations

Ancona

Anzio

Bari

Cagliari

Carloforte

Catania

Civitavecchia

Crotone

Gaeta

Genova

Ginostra

Imperia

La Spezia

Lampedusa

Livorno

Marina di Campo

Messina

Napoli

Ortona

Otranto

Palermo

Palinuro

Ponza

Porto Empedocle

Porto Torres

Ravenna

Reggio Calabria

Salerno

San Benedetto del Tronto

Sciacca

Strombolicchio

Taranto

Tremiti

Trieste

Valona

Venezia

Vieste

Stations comparison

Sensors

Air temp. & rh% transducer

Barometric sensor

Hydrometric staff

Level pressure

Multi parameter probe

Radar level transducer

Ultrasonic tidegauge

Water level sensor

Water temperature transducer

Wind direction transducer

Wind speed transducer

Data/analysis archive

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ULTRASONIC TIDEGAUGE - SIAP+MICROS ID0710

The ID0710 sensor exploits a ceramic transducer. It emits ultrasonic pulses towards a surface and senses returning echoes; the on-board electronics performs distance calculation computing time intervals between emission and reception of pulses. To avoid spikes, the recorded value is the arithmetic mean of a programmable number of consecutive samples. This heavy-duty sensor, featuring IP65 protection, is ideally suited for marine environment. It is easily programmable, and many functions may be fine-tuned in order to compensate and correct environmental disturbances by means of 27 different parameters independently settable through 4 buttons and a 4 digits display.

Main parameters are:
Distance calibration (it is possible to force the measure for matching a reference value for instance by comparison with staff gauge)
Range setting within 0.5¸15 meters
Number of pulses per acquisition, to adjust power emission to environmental conditions and measured distance
Out of Range Span: maximum variation of measured value between two consecutive acquisitions (1¸20)
Out of Range Samples: number of measures outside the above defined range after which measure is accepted (0¸200)
Number of samples over which the arithmetic mean is calculated giving the recorded measure (1¸200)
Offset: value (positive or negative) to be added to measures
Zero zone: is the range (0.5 m ¸ full scale) ignored by the sensor; very useful when obstacles stand between the sensor and the surface to be measured.
Fine tuning of the relation between measure range (meters) and electric output (mA).

This sensor is installed in each station to verify the right functioning of the new installed sensors (radar level transducer and shaft encoder water level sensor).

Technical data

Working principle: ultrasonic│
Transducer: ceramic│
Range: Programmable, up to 15 m
Electric Output: 4 ¸ 20 mA
Repeatability: + 0,5 cm
Sensitivity: 0,1 cm
Systematic error: max 0,1 cm
Non linearity: negligible
Compensation: Temperature, with internal thermometer
Overall precision: 0,1 % of specified full scale
Time constant: 0,1 sec.
Working frequency: 42 kHz
Number of samples: programmable from 1 to 20 per second
Dead zone: programmable 0,5 m - f.s.
Beam aperture: 9░ (from vertical axis)
N░ of individually: programmable parameters: 27
Display: 4 digits at 7 segment led
Supply voltage: 11 ¸ 30 VDC
Power cons: 67 mA (standby); 175 mA
Operating Temperature: -30 ¸ +70 ░C
Dimension: 220x230 mm
Weight: 2 kg

ULTRASONIC TIDEGAUGE

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