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Level Sensors
i-Series Sensors
Part No. NMiIntelligent sensors for level measurement
Ultrasonic sensors with integrated transmitter for measurement of distance, level, empty space or volumes. Suitable for harsh ambient conditions.
Description
- 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
Technical Data
| Common | |
|---|---|
| Power supply | 10-28 V DC |
| Enclosure material: | Valox 357 PBT PVDF (optional) |
| Process connection | 1" BSP/NPT Standard |
| Protection | IP 68 (5 Bar) |
| Ex-Approval | II 2 GD Ex m IIC T4 or II 1 GD Ex ia IIC T4 |
| Outputs | 4 - 20 mA (3,8 - 22 mA, 2-wire) HART® (for programming via NIVUS software) |
| Functions | Level, distance, empty space, volume and linearisation using 16 breakpoints |
| Configuration | PC software for parameter setting, echo evaluation, linearisation and false echo avoidance |
| Cable lengths | 5, 10, 20, 30, 50 oder 100 m; futher lengths on request |
| Echo processing | Automatic and self-learning echo suppression |
| Startup time | 4 sec. typical |
Specifications subject to change.
| Optionen | |
|---|---|
| Coating of transmitter surface | PTFE soft foam for dusty bulk solids (for P 06, P 10 and P 15) |
| Flood protection head | For 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 type | for 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 Thread | Front thread 1.5" for i-3 and i-6 front thread 2" for i-10 |
Specifications subject to change.
| Sensor Type i-3 | |
|---|---|
| Measurement range | 0,125 m - 3 m |
| Transmit frequency | 125 KHz |
| Operating temperature | - 40 °C to + 80°C |
| Beam angle | <10° |
| Measurement uncertainty | 2 mm |
| Resolution | 1 mm |
Specifications subject to change.
| Sensor Type i-6 | |
|---|---|
| Measurement range | 0,3 m - 6 m |
| Transmit frequency | 75 KHz |
| Measurement uncertainty | 4 mm |
| Resolution | 2 mm |
| Beam angle | <10° |
Specifications subject to change.
Downloads
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
Applications
Channel Dry Weather Flume
Throttle Monitoring via GPRS
Discharge Measurement
Discharge Measurement with GPRS Transmission
Flow Measurement in large WWTP Intake Area
Flow Measurement in Service Reservoir
Flow Measurement on Flood Polder
Cooling Water Tap
Mine Water Flow Measurement
Contactless Flow Measurement on Fish Ladder
Accessories