Flow Sensors

NivuGuard 2

Part No. NG2003500

Non-contact flow monitoring

Non-contact flow monitoring for polluted respectively high polluted media in full pipelines

  • Non-contact measurement
  • No transmitter required
  • Pressure and temperature independent
  • Easy retrofitting without the need for pipe works and operational interruptions
  • For use on pipes from DN50 to DN350
  • Very robust enclosure

The NivuGuard 2 sensor is for flow monitoring in full pipelines by using a specially developed Doppler method. Thanks to the clamp-on technology the sensor can be installed very quick and easy from the outside. The integral signal evaluation allows to operate the sensor without transmitter. The sensor can be set up directly by using a free software. The very robust enclosure is perfect for use in harsh ambient conditions. Due to clamp-on installation the NivuGuard 2 can be moreover used on pipelines conducting highly abrasive and aggressive media.


Featuring cost-efficient commissioning and variable areas of use the measurement system is mainly suitable particularly for retrofitting. The NivuGuard 2 can be used on pipes made of plastic, stainless steel, steel or cast iron.


Der optionally available NivuGuard Monitor serves as indication instrument and provides more signal outputs. The sensor can be set up as well by using the Monitor‘s large keypad.

 

Typical Applications

Dry run protection and flow monitoring on:

  • pump lines
  • sludge lines
  • wastewater pipelines
Common
Measurement principleDoppler method
Enclosure material:Investment casting stainless steel
ProtectionIP 67
Recommended cable4-wire, min. 0.5 mm², cable diameter 6-12 mm
Power supply18 - 28 V DC, 125 mA
Operating temperature-20° to +70°
Reproducibility± 5% typical, depending on application
Particle size>100 µ
Particle concentration>200 ppm
Pipe diameterDN 50-DN 350
Pipe wall thicknessup to 20 mm
Pipe materialmetal or plastic
Velocity range0.3 m/s to 4 m/s
Analog output1 x 4 - 20 mA, scalable
Digital output1 potential-free alarm relay
Communication/data transmissionRS485 Modbus RTU

Specifications subject to change.

NivuGuard Monitor (optional)
Power supply230 V AC + 5 % / - 10 % 50/60 Hz
ProtectionIP66
Operating temperature-20° to +50°
Analog output1 x 4 - 20 mA, scaleable
Digital output2 x relais volt free

Specifications subject to change.

Data sheet NivuGuard 2

Brochures / Data Sheets English

Non-contact flow monitoring for polluted respectively high polluted media in full pipelines

 

Software NivuGuard 2 PC

Software English

NivuGuard 2 PC is the ideal software for setup and monitoring of NivuGuard 2

Instruction Manual for the flow monitoring sensor NivuGuard 2

Instruction Manuals / Technical Information English

Non-contact flow monitoring for polluted respectively high polluted media in full pipelines

Instruction Manual NivuGuard Monitor

Instruction Manuals / Technical Information English

EU Declaration of Conformity Clamp-on ultrasonic flow guard NivuGuard 2

Certificates German English Spanish
  • NivuGuard PC Software

    NivuGuard 2 PC

    The free software is the ideal setup tool for flow monitoring with the NivuGuard 2
    The free software is the ideal setup tool for flow monitoring with the NivuGuard 2
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