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Craind Impianti KDN Installation, Operation And Maintenance Manual

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INSTALLATION, OPERATION
AND MAINTENANCE MANUAL
OF METERS.
KDN

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Summary of Contents for Craind Impianti KDN

  • Page 1 INSTALLATION, OPERATION AND MAINTENANCE MANUAL OF METERS.

  • Page 2: Installation

    INTRODUCTION A semi positive displacement nutantic disc flow transducer type KDN is situated in the liquid line, which detects the transfer of very small volumes of liquid. A magnetically operated switch converts the disc movement into pulses which are transferred along twin screened wire to remote electronic counting/control devices.
  • Page 3 Pag.1 Installation.  As the meter are not bi-directional respected direction arrows and the meter may be fitted directly in to the system.  Excessive tightening of the reed switch securing screws should be guarded against at all times.  Meters should not be fitted into systems which are subjected to any form of excessive hydraulic shock, or damage to the meter internals may result.

  • Page 4: Maintenance

    Pag.2 MAINTENANCE Dismantling. The meter has been designed to require the minimum of maintenance. However, genera! planned maintenance is recommended and the following procedures may be adopted maintenance purposes:  Isolate the meter from its source of supply and if possible drain it.

  • Page 5: Meter Dimensions

    particles have passed through the measuring chamber. Any mild signs of scouring may be polished out with meta! polish and soft cloth. Chamber displaying heavy signs of wear should be replaced and the cause of scouring ascertained and a suitable strainer fitted up-stream of the meter before re- installation of the meter in the pipework system.
  • Page 6 Pag.4 DIMENSIONS WEIGHT METER (mm) (KK) MODELLO/ME KDN 0 '/i" - W' KDN 0 1" KDN 0 1 W' KDN 0 2" KDN 0 3" MSI 316 MODEL FLOW RATE PULSES Min Mai T ma: P ma: °C cc x imp KDN 1"...
  • Page 7 KDN 3" 3.500 35.000 Pag.5 The number of omitted pulses is the and it refers to water. DISCS MATERIALS : PTFE- MSI 316 O.R MATERIALS VITON - FIFE - EPDM – NTIRILE EXPLODED VIEW OF METER PARTS...
  • Page 8 Pag.6...

  • Page 9: Associated Equipment

    0,1 mm in diameter. For further information do not exitate to contact our Technical Department in CRAIND IMPIANTI Valves Remotely controlled valves, when fitted, should be of the fast closing type to minimize the effect of over-run at the end of a batch delivery.
  • Page 10 Pumps Use pumps free from pulsation (volumetric types). Positive displacement pumps Inherently produce pulsations which can cause measurement errors. Air Separation If there is danger of en trained air being present in the liquid then a suitable de-aeration device must be installed upstream of the meter otherwise air will be measured as liquid.

  • Page 11: Fault Finding

    ATTENTION:• It is very dangerous to empty the meter by using air, nitrogen or steam. If it is necessary be very careful during the operation. emptying will inevitably damage the meter. FAULT FINDING If the metering system is not functioning correctly: ...
  • Page 12 4)caused by a rotating disc. If al! the previously mentioned checks prove satisfactory then the meter must be removed from the fine and dismantled and inspected as detailed in maintenance sections.  Possible causes of imperfect operation ore: I) A fractured disc or balls allowing the passing of unmetered fluid.
  • Page 13 A T E X : AD D I C T I S T R U C T I O N S AN D I N F O R M AT I O N This addict istructions and informations completate the istruction’s manual and the standard’s service.
  • Page 14 II 2 GD c T4 X 2- THE DATAS THAT YOU MUST CONTROL DURING THE OPERATION DANGER EXPLOSION! The observance of the instruction contained in this chapter can be produce severe damages to the people, or it can be cause the death! This instructions don’t prescind from an appropriate utilization of the equipment and from the istructions on the generic instruction’s manual.
  • Page 15 A T E X : AD D I C T I S T R U C T I O N S AN D I N F O R M AT I O N Note 1: refer to the individual instructions for the other accessory united to the meter.

  • Page 16: New Series

    REPLACEMENT REED KDN OLD SERIES NEW SERIES Pag.14...

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