Handbook
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INSTALLATION, OPERATION AND MAINTENANCE MANUAL OF METERS CRAIND IMPIANTI s.r.t. Via Sandro Pertini 25/27 - 26019 Vailate (CR

INTRODUCTION A semi positive displacement rotary piston flow transducer type KPO is situated in the liquid line, which detects the transfer of very small volumes of liquid. A magnetically operated switch converts the piston movement irato impulses which are transferred along Mn screened wire to remote electronic counting/control devices. Location of Meter. It is recommended that the meter be fitted irato a vertical section of the pipe run wherever possible. With the meter fitted irato horizontal pipe, it is possible that errors in registration can be caused by the settling of the piston due...

6. REED swc can . . _ . „ „ in . _ provided. ■ Excessive tightening of the reed switch securing screws should be guarded against at all times. • Meters should not be fitted systems which are subj ected to any excessive hydraulic shock, or damage to the meter internals may result. Electrical Connections. Electrical connections between the meter and the indicating of control instrument shall be made using screened cable. The reed switch assembly is provided with a short length of flying lead. The reed switch is encapsulated in hermetically epoxy resin. The switch withstand temperature up...

• Invert the meter and repeat. • Remove barrier plate from the slot in the body. Having completely dismantled meter al/ components may be thoroughly washed in warm soapy water. On no account should abrasive materials be used to clean the meter parts as meter accuracy relies upon the maintenance of controlled clearances. Inspection and Assembly • Inspect the barrier plate for wear, which if present will manifest it self in the form of "waisting or hollowing of the barrier surface. Any reduction in barrier thickness will permit the passage of un measuring liquid. If in doubt a new barrier...

OPERATION Commissioning immediately after installation or after long periods of shut down the meter must be slowly purged of air. This is most effectively achieved by allowing the liquid to be metered !o flow through the meter at a slowly increasing rate until the maximum through put is achieved The inter is now ready to be put fin to service and will accurately in measure all liquid passing through it, provided it is not operate outside the limits. CRAIND IMPIANTI s.r.l. j/i^androPertin^S^T^Ml^ailat^C^ Tot 02.54621131. o, - rax 02 5450303 www.csatno rt • E-mat crancfriciainaji

TYPICAL ACCURA CY CURVE © CRAIND IMPIANTI s.r.l. Via Sandro Pertini 25/27 - 26019 Vailate (CR

8) Reed Switch Pag.6 © CRAIND IMPIANTI s.r.l. j/i^androPertin^S^^MigVailat^C^ Tol 02.5462113 r. a, - Fax 02 5450303 www.CfOlndLit - £ ma4: crand>iiciainciit

fl- Spare parts It is recommende that the following parts be held in stock as spares: N. piston N. 1 Reed switch N.2 roller (only for 2" and 3"meters) N.1 barrier plate N.2 'O"rings seal ASSOCIATED EQUIPMENT Filters In order to guard against seizure of the meter working parts, due to the ingress of oversized particles too large to be swept through the meter, it is recommended that filter be fitted up-stream of the meter to filter out particles in excess of 0,1 mm in diameter. For further infomation do not exitate to contact our Technical Department in CRAIND IMPIANTI Valves Remotely...

The body components (s.s. version) are manufactured from AISI 316 stainless steel and are ready dismantled for maintenance and cleaning. Due to the hygienic design and self-flushing action, the mete, lends itself to in-line steam sterilization. As a result the CRAIND IMPIANTI KPO meter is used in a wide renge of applications in the brewing, distilling, food ,drinks and pharmaceutical industries. CLEANING IN SITE When a system is to be cleaned in place, sterilized or purged without removal of the meter from the line, it is advisable to provi de the meter with a by-pass to prevent...

e ATTENTION:* It is very dangerous to empty the mete, by using air, nitrogen or steam. If it !s necessary be very careful during the operation. Moment emptying will inevitably damage the piston TECHNICAL CARATTERISTCHS AND MATERIALS emitted pulses number is theoretical and it refers to water PISTONS MATERIALS: PTFE - PVC -ALLUMINIO - PIK MOD. " O.R MATERIALS:VITON - Pl I-E - EPDM -NITRILE SENSOR TYPE following types of sensor are available • REED • HALL EFFECT • HALL EFFECT Pag.9 CRAIND IMPIANTI s.r.l. j/i^androPertin^S^T^Ml^ailat^C^ To! 02.5462113 r. o, - Fax 02.5450303 www.c:alna ft -...

FIG.1 The piston is over the inlet port, the inflowing liquid has entered the incide wall of the piston and is causing it to start its semi-rotary movement, sliding down the division piece, displacing the neutral liquid which becomes the out owing liquid as it is expelled through the outlet port. FIG.2 Shows the above operation taking place with the inflowing liquid both inside and outside the piston FIG.3 Shows the inflowing liquid on the inlet ride of the chamber with the neutral liquid on the incide of the piston and with the out owing liquid passing to the outlet port. FIG.4 Shows the...

Check the operation of the reed switch by: Remove the reed switch assembly from the meter and connect a battery ohm meter. Pass a normal magnet across of the reed switch and if the resistance changes from at least I mega ohm to less than I ohm due to the movement of the magnet, the reed switch is operative. ■ To check that the piston is rotating whilst liquid is flowing: 1) Hold an ordinary magnetic compass near the reed switch recess in the meter body. If the needle oscillates wildly the piston is moving. 2) A visual ( check can be made on the quantity of liquid flowing through the system...

ATEX: ADDICT ISTRUCTIONS AND IN FORMATION This addict istructions and informations completate the istruction’s manual and the standard’s service. 1- What operating features have Your equipment? 1.1 - Marking and esplications. All of Yours equipment have this label CRAIND IMPIANTI s.r.l. j/i^androPertin^S^T^Ml^ailat^C^ tut 02.54621131. a, - Fax 02.5450303