Level Sensors

i-Series Sensors

Part No. NMi

Intelligent sensors for level measurement

Ultrasonic sensors with integrated transmitter for measurement of distance, level, empty space or volumes. Suitable for harsh ambient conditions.

  • Sensor as independent, comfortable level measurement
  • Pre-programmed measurement range steps of 3, 6, 10 and 15 m
  • Ideally suitable for battery operation through quick measurement times
  • Resistant to humidity, aggressive environments and heavy temperature fluctuations
  • IP68 protection
  • Can be directly connected to PLC
  • Saves time and space, no transmitter installation needed
  • DATEM - digital echo processing with automatic false echo avoidance
  • Ex-approval according to ATEX for Zone 1; optional for Zone 0
  • Easy wiring directly to terminal unit in Ex-areas (no Zener barrier required)

i-Series level sensors can be used to measure distance, level, empty space or volumes of liquids in any application where highly accurate level measurements are required.

The level sensors are designed for use in poor ambient conditions. Soiling as well as wear and tear is avoided thanks to non-contacting measurement.

Since transmitter and sensor share the same fully encapsulated enclosure the unit can be easily installed with low space requirements. Extensive programming works are not needed through pre-programmed measurement range steps. The sensors can be directly connected to any PLC, NIVUS GPRS data logger and all systems processing measurement values featuring an active mA-input.

The level sensors utilise a particular energy-efficient sensor concept. Thanks to minimum startup times and measuring cycles it is possible to obtain very long lifetimes with independent and self-sufficient battery-powered data loggers.

False echoes can be avoided manually if required by using a free PC software. Additionally all parameters relevant for adjustment of the measurement range can be optimised and documented.

The i-Series level sensors can be easily integrated into existing process conducting systems. 

The standardised output of readings allows direct connection to a PLC without the need for additional programming works. 

 

Typical applications

  • Wastewater: stormwater overflow tanks and storage sewers, clarifiers, pump stations, screening plants, flow measurements, tank volume measurements, container monitoring, irrigation facilities
  • Drinking water: tank level measurements, water treatment, sweater desalination plants, level measurements
  • Flood protection: stormwater retention tanks, level measurements with remote data transmission, surface water bodies
  • Power generation: cooling water circuits, hydropower plants
Common
Power supply10-28 V DC
Enclosure material:Valox 357 PBT PVDF (optional)
Process connection1" BSP/NPT Standard
ProtectionIP 68 (5 Bar)
Ex-ApprovalII 2 GD Ex m IIC T4 or II 1 GD Ex ia IIC T4
Outputs4 - 20 mA (3,8 - 22 mA, 2-wire) HART® (for programming via NIVUS software)
FunctionsLevel, distance, empty space, volume and linearisation using 16 breakpoints
ConfigurationPC software for parameter setting, echo evaluation, linearisation and false echo avoidance
Cable lengths5, 10, 20, 30, 50 oder 100 m; futher lengths on request
Echo processingAutomatic and self-learning echo suppression
Startup time4 sec. typical

Specifications subject to change.

Optionen
Coating of transmitter surfacePTFE soft foam for dusty bulk solids (for P 06, P 10 and P 15)
Flood protection headFor generation of echo loss and alarm output in case of flood. No dirt on the sensor face in case of flood (for all types without front thread)
Flange typefor all type of flanges DIN DN50 / DN 80 / DN100 / DN150 / DN200, ANSI 2 " / 3" / 4" /6" / 8" /
Enclosure material:PVDF for aggressive media, max. 70°C (for i-6, i- 10 and i-15)
Front ThreadFront thread 1.5" for i-3 and i-6 front thread 2" for i-10

Specifications subject to change.

Sensor Type i-3
Measurement range0,125 m - 3 m
Transmit frequency125 KHz
Operating temperature- 40 °C to + 80°C
Beam angle<10°
Measurement uncertainty +/- 0,25 % from the current measurement range
Resolution2 mm

Specifications subject to change.

Sensor Type i-6
Measurement range0,3 m - 6 m
Transmit frequency75 KHz
Measurement uncertainty +/- 0,25 % from the current measurement range
Operating temperaturefrom - 40 °C to + 80 °C
Beam angle<10°
Resolution2 mm

Specifications subject to change.

Sensor Type i-10
Measurement range0,3 m - 10 m
Transmit frequency50 KHz
Operating temperaturefrom - 40 °C to + 80 °C
Beam angle<10°
Measurement uncertainty +/- 0,25 % from the current measurement range
Resolution2 mm

Specifications subject to change.

Sensor Type i-15
Measurement range0,5 m - 15 m
Transmit frequency41 KHz
Operating temperaturefrom -40 °C to +80 ° C
Beam angle<10°
Measurement uncertainty +/- 0,25 % from the current measurement range
Resolution2 mm

Specifications subject to change.

Brochure i-Series

Brochures / Data Sheets English

i-Series - Intelligent Level Sensors with integrated Transmitter

Instruction Manual i-Series

Instruction Manuals / Technical Information English

Instruction Manual for i-Series intelligent Sensors

Technical Information USB HART-Modem

Instruction Manuals / Technical Information English

Connections of HART-Modem to i-Serie Sensors

EU Declaration of Conformity Ultrasonic Sensors i-Series

Certificates German English

Ultraschallsensoren i-Serie

EU Declaration of Conformity Ex Ultrasonic Sensors i-Series

Certificates German English

Ex Ultraschallsensoren i-Serie

 

Tender Specification "i-sensors"

Texts for Tender Specification English
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Discharge Measurement

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Discharge measurement and GPRS  transmission

measurement and transmission

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Flow Measurement in Cooling Water Tap

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Mine Water Flow Measurement

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  • Deckenhalterung für einen Füllstandssensor. Für Sensoren der P- und i-Serie mit 1“ Gewinde.

    Ultrasonic Sensor Accessories

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  • Overvoltage protection enclosure

    BSG 12, 32, 42 and BSG 20 Ex - for DataPro, SonicPro, EnerPro and IsoPro surge arrestors
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