HYDREKA - Model HydrINS 2 -Electromagnetic Insertion Flowmeter

HydrINS® 2 can be used throughout the water distribution network:

• Metering at reservoirs, treatment works
• Pumping stations, water pipes
• Zoning and DMA
• Night flow monitoring and meter testing

In accordance with Faraday`s law, a voltage is induced in a conductor that is moved through a magnetic field. In the electromagnetic principle of flow measurement, the flowing and electrically conductive fluid represents the moving conductor and the magnetic field is generated by a coil within the sensor. The induced voltage is measured on a pair of electrodes on the sensor. The sensor is placed on the centre line of the pipeline, or at the 1 /8 diameter point depending on the particular installation. Moving the sensor also enables velocity profiling to be carried out to verify the flow profile.

Description:
The HydrlNS 2 insertion flowmeter consists of:

• The electromagnetic sensor
  The sensor contains the electromagnetic coil and stainless steel electrodes. All materials in contact with the water are approved for use in drinking water. The sensor assembly is securely fixed to the stem, but can be replaced should damage occur during installation or handling.
• Integral processing electronics (transmitter)
  All flow processing electronics are contained within the IP68 housing fixed to the top of the stem. HydrlNS 2 uses advanced processing techniques which enable a wide variety of samplng regimes to be set to suit a wide variety of applications. The electronics carries out self-checking of signal h accordance with OIML R49 Type P (Permanent) requirements, so that users can be confident that the instrument is working correctly. HydrlNS 2.1 has a wide, bi-directjonal measurement range from 2 cm/s to 5 m/s (0.066 ft/s to 16.40 ft/s) and its accuracy of ± 2mm/s at flows up to 10 cm/s enables precise minimum night flow monitoring (MINJF).
• Gland assembly and stem
  Every unit comes with gland assembly, pressure measurement port reinforced stem with an anti-ejection chain, locking nut and insertion point damp to ensure correct and safe installation in pressurised water networks
  Communication, pulse outputs and optional external power input is via a single watertight military specification connector.
• Optional display and external power supplies
  The HydriNS2canafeobesijppied with a large LCD display unit gluing instant readouts of all measurements The display unit has three versions Power is by internal long life Ithium batteries (up to 10 years), or alternatively via external DC power. They have alarm and pulse outputs, and also a two 4-20 mA outputs option There is also a telemetry unit inducing data logger and quad-band modem for data transfer via SMS or GPRS.

Installation:
The HydrlNS 2 is a robust watertight and compact fl owmeter. The integral transmitter enables multiple telemetry options or simple totalizer. Available in different lengths to suit pipe diameter from 100 mm to over 2000 mm (032 ft to over 6.56 ft). It is equally well deployed for permanent or portable applications inserted through standard under pressure taping with no interruption to supply (1»NPT- optional). The flowmeter HydrlNS is used by inserting the electromagnetic sensor at the centre line or 1 /8. The insertion stem length is validated by a preliminary measurement of the pipe Internal diameter by using the diameter gauge. Push ft" t connector at the tip of the probe enables pressure measurement