Metering - Pulse


Low frequency modular pulse emitters

The Pulsar pulse emitters are at the core of the modular concept developed by Sappel over 10 years ago. They can be clipped onto all the meters of the Sappel modular range in a few seconds to turn them into communicating meters. The new generation of Pulsar uses a Hall sensor and is available in two versions : standard 3-wire version which takes account of backflow and 4-wire version for determining the flow volume in both directions. Pulsar offers a number of alarms against magnetic tampering, unauthorised unclipping of module and cable cut. Pulsar is powered by a lithium cell with a life of about 15 years and can be connected to remote reading system or Cursa consumption analysis system.

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Modular pulse emitters

The Izar Pulse i pulse emitters are central to the new modular inductive concept developed by Sappel. In a matter of seconds, they can be clipped onto all the meters of the Sappel (Ti) modular range, making them “ communicative ”. The new Izar® Pulse i generation comprises a sensor operating on the inductive principle. It is available in 2 versions: a standard 3-wire version capable of taking account of backflows and a 4-wire version that determines the volumes flowing in both directions. Izar® Pulse i also features alarms for unclipping, magnetic and cable cut-off tampering. Izar® Pulse i is powered by a lithium battery with a lifetime of approximately 15 years. It may be connected to remote-reading or consumption-analysis systems. Izar® Pulse i is also available in a divider version. Izar® Pulse i features a new clamping ring for completely secure mounting (sealable cam).

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Remote reading, distance configuration

The pulse emitters of the product range WP-WS/MFD can be fitted on all the WP-WS/MFD type Woltman meters. Each meter is set to receive a pulse emitter, at a plant or on site, without removing it from there.
Sappel proposes two types of emitters:

  • the receiver Reed 2 threads consists of one switch with flexible plates which emits o signal of low frequency, free of potential. After it gets fitted on the register, it gets activated by one or more magnets that are situated on a cogged wheel. It permits the report of the index.
  • the receiver Opto consists of an emitter which sends a beam of light on a reflecting disc. It exists in two versions:
    • a version 3 threads which emits open collective type high frequency signals (NPN).
    • a version 2 threads which emits Namur type signal.

The receiver Opto emits high frequency signals permitting for example the display of the flow. It needs electrical supply.

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