Petrol 212 Installation and operating instructions

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Doc. n° F/6-469E Rev.10 (PED-ATEX-MID)
POSITIVE
DISPLACEMENT
FLOWMETERS
MOD.
212 - 612 - 114
INSTALLATION OPERATION AND MAINTENANCE
PETROL INSTRUMENTS S.r.l. - 04011 APRILIA (LT) - ITALY

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INSTALLATION OPERATION AND MAINTENANCE MANUAL
ED. 03
REV. 10
P.O. No. _____________
Mod. _____________
Ser. No. _____________
C. _____________
 2001 Pe rol Ins rumen s S.r.l. - Via della Tecnica, 5 - 04011 Aprilia - La ina
I is forbidden any reproduc ion of his documen , even par ial, wi hou a previous wri en approval by Pe rol Ins rumen s
S.r.l.
Pe rol Ins rumen s S.r.l. has he righ o make all he necessary changes o his documen s wi hou any advance no ice.

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Sect. Description Pag.
1. eneral 4
2. Construction 5
3. Special Conditions
(MID Measuring System) 6
4. Disposal
(MID Measuring System) 7
5. Applicable Standards
(MID Measuring System) 9
6. Limits of use,
Special Conditions and Atex Marking 10
7. Installation Instruction 11
8. Start-up and Operating Instructions 12
9. Failures Analysis 13
10. Inspection Procedures 14
11. Inner Housing Ass’y Maintenance 15
12. Spare Parts 17
13. Storage 18
14. Troubleshooting table 19
15. Drawings 21
A. Spare Parts List 24

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1
eneral
"PETROL" PD flowme ers are ins rumen s capable of measuring he volume of
flowing liquids wi h a s andard accuracy of ± 0,5% of reading for general purposes
and of ± 0,15% of reading for fiscal ransac ions.
“PETROL” PD flowme ers have been employed since many years by differen
indus ries (such as ship-building, s eel making, power genera ion plan s, refineries
and depo s, chemical, pharmaceu ical, ex ile indus ries e c.) of many coun ries
and have always sa isfied he users for heir good performances and dependable
service during he years.
This manual has been prepared for people responsible of heir ins alla ion and, a
he same ime, for people responsible of heir main enance and service.
This documen includes specific aspec s of ins alla ion, use and main enance aimed
a mi iga ing he risk of explosion associa ed wi h use in hazardous areas.
Personnel involved in ins alla ion, es ing and main enance mus possess he
qualifica ions required by Annexes F of EN 60079-14: 2014 and EN 60079-17: 2014.
The equipmen supplied already has he me allic con inui y of all i s par s. Once i
reaches i s des ina ion, he equipmen mus be connec ed o he pro ec ion sys em
by connec ing he equipmen 's grounding conduc or o he ins alla ion si e's ground
sys em. I is he responsibili y of he final ins aller o verify he correc equipo en ial
connec ion wi h he dispersan sys em of he ins alla ion si e
INVOLVED PERSONNEL ARE KINDLY REQUESTED TO READ CAREFULLY THE
PRESCRIPTIONS CONTAINED IN THIS MANUAL, MAINLY THOSE RELEVANT TO
PD FLOWMETERS INSTALLATION BEFORE THEIR START-UP.

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Construction
PD flowme ers are mainly composed of he measuring uni assembly and of he
reading uni (see dwg.1).
The reading uni , available in differen models, is ha required for he specific
applica ion.
The measuring uni assembly is composed of hree main sub-assemblies, namely:
•The ou er housing;
•The inner housing assembly;
•The coupling assembly.
The ou er housing is he par ha wi hs ands he liquid pressure and i s
cons ruc ion is in accordance o maximum expec ed pressure of flowing liquid.
The inner housing assembly is he par ha accura ely measures he volume of
flowing liquid hrough he revolu ions of he ro ors (“roo s” ype mechanism).
The coupling assembly is he par hrough which he number of ro ors revolu ions
is ransmi ed o he reading uni where are displayed he volumes me ered.

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Special Conditions
(MID Measuring System)
The measuring sys em has been evalua ed o he 2014/32/UE direc ive, and found
o be sui able for measuring liquids o her han wa er wi h an accuracy class of 0,3
according o he Annex VII of direc ive.
The me er and accessories mus remain full of produc a all imes. Ups ream lines
mus remain full o preven air from en ering he measuring sys em componen s.
If ups ream or inle lines are cons ruc ed in a manner which allows reverse flow,
foo valves or back checks mus be ins alled.
To ensure proper me er and accessory ins alla ion, adhere o he following:
Flush he en ire piping sys em prior o componen ins alla ion o rid he sys em of
all debris. Use a liquid compa ible wi h he cons ruc ion of he Pe rol Ins rumen s
componen s.

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Disposal
(MID Measuring System)
The measuremen sys em is sui able for measuremen s of liquids o her han wa er
having he charac eris ics and environmen al condi ions shown on he pla e of he
measuring sys em.
Me rological seals guaran ee he measuremen sys em from he volun ary or
involun ary al era ion of he correc func ioning and calibra ion condi ions. The seals
mus no be removed. Removal can be carried ou by he manufac urer and/or
personnel of Surveillance Bodies.
The pla e of he measuremen sys em con ains he following informa ion:
II 2G
This equipmen has been evalua ed o he Equipmen
For Po en ially Explosive A mospheres Direc ive,
2014/34/EU, and found o be sui able for use in surface
(no mines) loca ions where a high level of pro ec ion is
provided agains flammable gases, vapours, or liquids
which may exis during normal opera ion.
This equipmen has been evalua ed o he 2014/32/UE
direc ive, Annex VII and found o be sui able for
measuring liquids o her han wa er by a No ified Body
iden ified wi h number 0476.
FLUID The in ended process fluid.
FLOW MIN./MAX. The minimum flow range for which he me er is
designed o opera e.
PS MIN./MAX. The minimum and maximum working pressure o which
he equipmen should be subjec ed on a normal basis.
MMQ
Weigh s & Measures field indica ing he minimum
measured quan i y. This is he smalles volume ha can
be accura ely delivered.
VISC. MIN./MAX. The minimum and maximum viscosi y of fluid o which
he accuracy is guaran eed.
FLOW MAX. The maximum flow range for which he me er is
designed o opera e.
TEMP. MIN./MAX. Maximum empera ure for Weigh s & Measure purpose.
0476
MX
X

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ACCURACY Weigh s & Measures field for ca egory of approval.
DENS. MIN./MAX. The minimum and maximum densi y of fluid o which
he accuracy is guaran eed.
ENV.
MECH./EM./HUM. CL.
Environmen al condi ions class for mechanical, EMC and
humidi y which he me er is designed o opera e and he
accuracy is guaran eed.
PED. CAT.
This equipmen has been evalua ed o he Pressure
Equipmen Direc ive 2014/68/EU and found o be
sui able for he ca egory no ed wi h regards o volume-
pressure limi a ions found wi hin he equipmen i self.
The measuremen sys em mus be used according o he ins ruc ions and
condi ions con ained in his manual. Inspec ion, main enance and repair opera ions
mus be performed following he ins ruc ions given in his manual by qualified
personnel o guaran ee he me rological conformi y of he measuremen sys em.

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Applicable Standards
(MID Measuring System)
Direc ive 2014/32/EU - Harmoniza ion of he laws of he Member S a es rela ing o
he making available on he marke of measuring ins rumen s
Direc ive 2014/34/EU - Equipmen For Po en ially Explosive A mospheres Direc ive
Direc ive 2014/68/EU - Pressure Equipmen Direc ive
Direc ive 2014/30/EU — EMC Direc ive
OIML R117-1 - Dynamic measuring sys ems for liquids o her han wa er

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Limits of use,
Special Conditions and Atex Marking
The PD Flowme ers mus be used only and exclusively wi hin he limi s shown on
he name pla e, so only and exclusively for ype of liquid, flow ra e, empera ure,
max pressure and viscosi y specified on he namepla e (dwg. 1 ). IT IS NECESSARY
TO CAREFULLY CHECK THE DATA ON THE NAMEPLATE BEFORE STARTING
THE METER.
SPECIAL CONDITIONS FOR A SAFE USE
1. i is forbidden o use he equipmen wi h an emp y pipe
2. he ins aller/user mus ensure ha he ins alla ion posi ion is respec ed as
declared by he manufac urer for he equipmen for which a specific posi ion is
envisaged
ATEX/CE MARKING on he PD flowme ers:
II 2G Exh IIC T6 … T3 X
II -/2D
: I ’s he symbol of EC marking and i represen s ha he equipmen is
complian wi h 2014/34/UE direc ive. An EC declara ion of conformi y is included in
he documen a ion
: I ’s he symbol of Ex, and i represen s ha he equipmen is according o IEC
60079, and he ATEX guideline
II: I ’s in ended as Group II, elec rical equipmen for use wi h an explosive gas
a mosphere o her han mines suscep ible o firedamp.
2G: I iden ifies he equipmen ca egory; 2G is sui able for use in zone 1 in
presence of explosive gas and vapours inside he equipmen bu , ou side, i is no
sui able for a ex zones
2D: I iden ifies he equipmen ca egory; 2D is sui bale for use in zone 21 and 22 in
presence of dus
Exh: I iden ifies he pro ec ion for mechanical cons ruc ion
IIC: I ’s a subdivision of Group II, i iden ifies he na ure of explosive gas
a mosphere. In his case he ypical gas is hydrogen.
T6 … T3 I indica es he range of he maximum surface empera ure, which shall
be be ween 85 °C and 200 °C
Ambien Tempera ure is: -20°C ≤ Tamb. ≤ +40°C