arm - automatic river monitoring · the probe for the high turbidity (mod. at) using the method of...

Via del Seminario Maggiore, 35 - 85100 Potenza (PZ) - ItalyTel. (+39) 0971.21432 - [email protected] www.extratech.it

p.iva IT 018.762.207.63 01

ARM

Flow monitoring, suspended solids and water

quality of rivers, streams and channels

ARM is the first product of Extratech dedicated to remote monitoring of surface water and groundwater.

The combination of multiple sensors makes ARM a versatile monitoring system and extremely

configurable according to specific customer requirements.

With ARM you can handle both analog and digital sensors

and what makes this innovative system a useful garrison

and structural environmental safety, for example, you can

also check any rotations, movement or subsidence

of hydraulic infrastructures.

The measurement and monitoring kits can be fed from fixed

network to 230V or photovoltaic autonomous system (Optional)

for installation in the open field.

A modular and expandable hardware architecture makes ARM

a higher-level monitoring station with the best quality / price ratio

on the market.

ARM is controllable by the customer through a web platform and

also by smartphone through Android application. The measured

data is sent, via the integrated GPRS module, the web portal,

where the client can query the active monitoring system and

display measurements either in tabular format graph.

EXTRATECH... engineering measures


AR

M E

N V

er

1.0

0

Authorized dealer

Automatic River Monitoring

ARM




p.iva IT 018.762.207.6302

Turbidity probe for the measurement of suspended solids, available in a high or low turbidity version.

The probe for the high turbidity (mod. AT) using the method of the detection of the light reflected back by the

particles in suspension (back scattering). It is used an infrared light source so as to be independent of the

color of the sample. The light pulse, is sent through a lens in the sample, the light, reflected from the suspended

particles falls within the probe through a second lens and converted into a signal electric, according to the

concentration and the particle surface.

For measurement applications in clean water, or at least a little murky, it is recommended to use the BT version

This type of sensor uses the nephelometric method according to ISO 7027, and can be used for both

applications in the pipe and underwater. The turbidity measurement is carried out by the method of diffusion

light operated by suspended particles in the sample. A beam of light is sent into the sample through a window

transparent to the wavelength used. The proportion of light scattered with an angle of 90° from particles

suspended in the sample falls within the probe through a second optical window.

Turbidity sensor characteristics

Analogue output: 4 ... 20 mA

Digital output: RS485

Cable: 10 m (optional up to 100 m)

Dimensions: 165 mm x 60 mm (W x D)

Power supply: 9 ... 36 V DC

electrical load: 600 Ohm max 24 VDC

Degree of protection: IP 68

Temperature range: Operating -5 ... 50ºC

Maximum pressure: 1 bar at 25 ° C

Self-cleaning: compressed air (max 3 bar) opt.

mod. AT - High turbidity -

Measuring method: Back-Scattering

Measured units: FTU (Formazine Turbidity Unit)

Measuring range: 0-100, 0-1'000, 0-10'000 FTU

FTU sensitivity: 70/130%

Zero FTU: +/- 10 FTU

mod. BT - Low turbidity -

Measuring method: Nephelometric

Measured units: NTU (Nephelometric Turbidity Unit)

Measuring range: 0-40, 0-400, 0-4'000 NTU

NTU Sensitivity: 70/130%

FTU zero: +/- 0,400 NTU

rom pa

AR

M E

N V

er

1.0

0



Authorized dealer


ARM




p.iva IT 018.762.207.63 03

DR sensor (Discharge Radar ) is designed for non-contact flow measurement, with radar technology.

The measurement of the flow is obtained by the combination of distance measurement of the speed of

superficial flow, with the principle of the Doppler frequency change and the measured level through the flight

times of the emitted signal. Via the management software, with which will fit the physical characteristics of the

section of the river bed or channel, the water flow is calculated in real time.

The absence of contact of the sensors with the water, minimizes the cleaning and maintenance operations,

and at the same time you avoid the possible damage that the materials transported by the flood could bring to

submerged probes.

DR Radar sensor for measuring the level, speed and water flow

Dimensions and weight: 338 x 333 x 154 mm ; 5,4 Kg

Power supply: 3 ...30 Vdc

Consumption at 12 V : 1 mA (stand-by); 140 mA (during measurement)

Degree of protection: IP67

Temperature range: Operative -35... +60ºC

Lightning protection: Integrated

Outputs: Digital SDI-12 e RS 485

n° 3 Analogue 4...20mA

Vertical angle automatic

compensation

Resolution: +/- 0,1°

Accuracy: +/- 1°

Level sensor features

Measurement principle: Doppler effect

Principle of detection: Radar signal at 26 Ghz

Measuring range: 0,00...15,00m (35,00 m on request)

Resolution: 1 mm

Accuracy: +/- 2 mm

Angle of aperture radar: 10°

Speed sensor features

Measurement principle: Return time TOF

Principle of detection: Radar signal at 24 Ghz

Measuring range: 0,10...15,00m/s

Resolution: 1 mm/s

Accuracy: +/- 0,01 m/s; +/- 1%

Angle of aperture radar: 12°

Flow direction: + / -

Measurement duration: 5...240 s

Interval between successive

measurements: 8s...5h

Distance water: 0,50...35m

Minimum wave height: 3mm


AR

M E

N V

er

1.0

0


Authorized dealer




ARM


p.iva IT 018.762.207.63

The MP7 multiparameter probe allows you to measure up to seven parameters such as: temperature,

conductivity, pH, ORP, dissolved oxygen, level, turbidity (optional) specific ion (NH4 +, Cl- or others on

request) (optional)

The probe is suitable for numerous groundwater monitoring applications, landfills and treatment plants.

04

Technical specifications - MP7 - Multiparametric probe

Digital output: RS485 (ASCII)

Cable: 30 m

Dimension and weight: 510 mm x 70 mm (L x D), 2 kg

Power supply: 9...14 Vcc 60 mA

Housing: PVC

Maximum pressure: 35 bar

Connector: IP68

Temperature: -5...+55°C

Conducibility: 0...6 mS autorange - 0...60 mS

pH: 0...14

Redox: +/- 1100 mV

Dissolved oxygen: 0...200mmHg

0...200% air

0...20 ppm

0.20 mg/L

Level: 0...20 m or

0...350 m

Secondary parameters:

Pressure: 500...800 mmHg

Salinity: 0...60 ppm

RH: 0...100 %

Optional sensors:

Torbidity: 0...4000 NTU

Specific ions: NH4

+, Cl- or others on request

AR

M E

N V

er

1.0

0



Authorized dealer


arm - automatic river monitoring · the probe for the high turbidity (mod. at) using the method of...

Documents