Download Barton 202E Differential Pressure Recorder

MODEL 202E
DIFFERENTIAL PRESSURE RECORDERS
User Manual
Part No. 9A-10060, Rev. 01
January 2008
CONTENTS
Section 1 - Introduction........................................................... Pressure Elements/Chart Drive Tables................................... Section 2 - Installation/Calibration Check.................................. Section 3 - Maintenance and Calibration................................... Section 4 - Troubleshooting...................................................... Section 5 - Installation Drawings............................................... Section 6 - Parts/Drawing List................................................. Specifications (DPU/Instrument)............................................... Page 1
Page 5/6
Page 7
Page 13
Page 26
Page 28
Page 34
Page 39
SECTION 1 - INTRODUCTION
General
The Barton Model 202E single DP Flow Recorders measure and record system
operation parameters, including gas and liquid flow rate, liquid level in a vessel,
and other system variables that can be measured by differential pressure and
static pressure methods.
Main Components
Differential Pressure Unit
The Barton Model 199 Differential Pressure Unit (DPU) actuates the recorders.
The DPU is a dual bellows assembly enclosed within pressure housings. The bellows are liquid filled and withstand overranges equal to the working pressure of
the housing without calibration change. Movement of the bellows is transmitted
through a torque tube from the DPU to the recording mechanism. The torque
tube is hermetically sealed to eliminate friction and leakage; it does not require
lubrication.
SAFETY
Before installing this instrument, become familiar with the installation instructions in
Section 2. WARNING notes that appear on the following pages of this manual should
be reviewed before proceeding: 8, 20, 21, 22, and 25.
WARNING notes indicate the presence of a hazard which can cause severe personal injury, death, or
substantial property damage if warning is ignored.
CAUTION notes indicate the presence of a hazard which can cause moderate personal injury or property
damage if warning is ignored.
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7.
8.
9.
14
Apply 50% differential pressure to the high-pressure side. Arrange the
differential pressure linkage as shown on page 12. Set a 90° angle between the
drive arm and link. By varying the length of the link, set a 90° angle between
the range arm and link. Slip the range arm to 50% on the chart.
Remove pressure. The pen should indicate zero. If the pen deviates less than
10% from zero in either direction, perform fine adjustment by using the pen
zero adjust screw (refer to page 12) and proceed to step 8.b. If the pen deviates
more than 10% from zero, make adjustments as follows:
a. Rotate pen arm and shaft by gripping the range arm and forcing (or
slipping) the pen until it indicates zero. The pen arm and shaft should
rotate at the range arm pivot point without loosening the range arm lock
screw.
b. Apply 100% pressure. Make the necessary adjustment by turning the
range arm adjust screw counterclockwise if the pen is slightly underranged
and clockwise if the pen is slightly overranged. Repeat zero and 100%
adjustments until calibration at these points is achieved.
c. Apply 50% pressure. The pen should be on the 50% chart line.
If the pen is low, lengthen the linkage to make a correction 40 times as
great in the low direction. Adjust the pen to 50% as in step 8.a. (refer to
page 12).
If the pen is high, shorten the linkage to make a correction 40 times as
great in the high direction. Adjust the pen to 50% as in step 8.a. Assure all
linkage screws are retightened.
Repeat step 8 until calibration of all three points (0, 50, and 100% indication)
is achieved. To assure accuracy, a nine-point calibration check (1, 24, 50, 74,
and 100% ascending and descending) must be run.
#HECKTHEPENSTOASSURETHATTHEYHAVECORRECTPENPRESSUREASPREVIOUSLY
DESCRIBED)FNECESSARYSTRAIGHTENTHEPENSBYSLIDINGTHEMBETWEENTWO
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&OROR0EN&LOW2ECORDERS
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&OR0EN&LOW2ECORDERS
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MUCHTORQUEISAPPLIEDTOTHELOCKSCREW
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THEPREVIOUSSECTION#!,)"2!4)/./&$)&&%2%.4)!,02%3352%
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SHOWNONPAGEWITHTHEDIFFERENTIALSETAT
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APPLYDIFFERENTIALANDSETTHECOUNTERWEIGHTATTHEOCLOCK
POSITION
4HEADDITIONOFTHECOUNTERWEIGHTCAUSESAZEROOFFSETBUTHAS
LITTLEEFFECTONSPAN2ESETZEROCHECKSPANANDADJUSTASNECESSARY
!FTERADDITIONOFTHEDIECASTCOUNTERWEIGHTORIENTTOOCLOCKPOSITION
ATDIFFERENTIALASSHOWNONPAGE2ESETZEROANDCHECKSPAN
!DJUSTASNECESSARYFORPROPERCALIBRATION
300EN-ECHANISM
3TATIC0RESSURE0EN#ALIBRATION2EFERTOPAGE
4OCALIBRATETHESTATICPRESSUREPENANDASSOCIATEDLINKAGEPROCEEDASFOLLOWS
!DJUSTTHESTATICRANGEARMANDDRIVEARMATPRECISELYTHESAMEDISTANCE
FROMTHEBACKOFTHECASE
0LACESTATICDRIVELINKINTHEFOURTHHOLEFROMTHEPENSHAFTOFTHERANGEARM
!DJUSTSTATICPRESSURELINKAGETOFORM—ANGLESBETWEENTHEDRIVELINKSEE
ABOVEILLUSTRATIONANDPIVOTPOINTSOFTHEASSOCIATEDLINKAGEASFOLLOWS
A !PPLYSTATICPRESSURECENTERTHUMBNUTONTHEDRIVEARMAND
ARRANGESTATICLINKAGEASSHOWNONPAGE
B 3ETA—ANGLEBETWEENDRIVEARMLINK4IGHTENCLAMPBLOCKSCREW
C 6ARYTHELENGTHOFLINKTOGETA—ANGLEBETWEENRANGEARMANDLINK
D 3LIPTHERANGEARMONPENSHAFTTOONCHART
.OTICEˆ6ERIFYTHATALLLINKAGEISFREE!DJUSTRANGEARMANDDRIVEARM
ATPRECISELYTHESAMEDISTANCEBACKOFTHECASE!DJUSTTHELEVERARMAND
PENZEROADJUSTSCREWSTOTHEIRMIDPOINTSALL—MIDSCALELINKAGEANGLES
MUSTBEMEASURED
2ELEASEPRESSUREANDRESETTHEPENTOZEROINDICATIONUSINGPENZEROADJUST
SCREWFORlNEADJUSTMENTORLESS&ORMAJORADJUSTMENTSMORETHAN
LOOSENRANGEARMLOCKSCREWANDSLIPTHEPENTOZEROONCHARTAND
RETIGHTENLOCKSCREW
.OTEˆ)TMAYBENECESSARYTORAISEORLOWERTHEPIVOTPOINTOFTHEDRIVE
LINKONTHERANGEARMASINSTEP)FCOUNTERCLOCKWISEMOVEMENTOFTHUMB
NUTSTEPDOESNOTINCREASESPANSUFlCIENTLYMOVETHEPIVOTPINUPTO
NEXTPIVOTHOLEIFCLOCKWISEMOVEMENTOFTHETHUMBNUTDOESNOTDECREASE
SPANSUFlCIENTLYMOVEPIVOTPINDOWNTOTHENEXTPIVOTHOLE
!PPLYPRESSUREANDOBSERVETHEPEN-AKETHENECESSARYADJUSTMENTS
BYTURNINGTHEDRIVEARMTHUMBNUTCOUNTERCLOCKWISEIFTHEPENISSLIGHTLY
UNDERRANGEDANDCLOCKWISEIFTHEPENISSLIGHTLYOVERRANGED2EPEATZERO
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&ORGED !LLOY 3TEEL (0 (EAD
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Ò OF FULL SCALE WAPPROPRIATE LINKAGE
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-AXIMUM .ON,INEARITY
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39
2EPEATABILITY
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OR WC MBAR= )NTERMEDIATE DIFFERENTIAL PRESSURE RANGES AVAILABLE FROM WC TO PSI MBAR TO BAR
/THER SIZES AND TYPES OF CONNECTIONS WELDING STUBS -3 !.$ ETC AVAILABLE UPON REQUEST 3TANDARD PRESSURE CONNECTIONS ARE TOP AND BOTTOM .04 2ANGE SPRINGS ARE NOT INTERCHANGEABLE BETWEEN THE DIFFERENT SIZE BELLOWS THE INCONEL BELLOWS OR THE
WC MBAR RANGE #AN BE SPECIFIED TO MEET .!#% -2 2EVISED g -ETRIC CONVERSIONS ARE APPROXIMATE /UTLINE
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$053PECIlCATIONS
Instrument Specifications
Case....................................... Die-cast aluminum, black epoxy resin paint,
waterproof and weather resistant; hinged door;
neoprene gasket seal
DP Accuracy:
0-20” w.c. to 0-349” w.c.......... ±0.5% of full scale
0-350” w.c. to 0-75 psi............ ±0.75% of full scale
SP Accuracy............................ ±1.0% of full scale
48
49
50
51
Product Warranty
A. Warranty
Cameron International Corporation ("Cameron") warrants that at the time of shipment, the products manufactured by Cameron and sold hereunder will be free from
defects in material and workmanship, and will conform to the specifications furnished
by or approved by Cameron.
B. Warranty Adjustment
(1) If any defect within this warranty appears, Buyer shall notify Cameron immediately.
(2) Cameron agrees to repair or furnish a replacement for, but not install, any product which within one (1) year from the date of shipment by Cameron shall, upon
test and examination by Cameron, prove defective within the above warranty.
(3) No product will be accepted for return or replacement without the written
authorization of Cameron. Upon such authorization, and in accordance with
instructions by Cameron, the product will be returned shipping charges prepaid
by Buyer. Replacements made under this warranty will be shipped prepaid.
C. Exclusions from Warranty
(1) THE FOREGOING WARRANTY IS IN LIEU OF AND EXCLUDES ALL OTHER
EXPRESSED OR IMPLIED WARRANTIES OF MERCHANTABILITY, OR FITNESS
FOR
A PARTICULAR PURPOSE, OR OTHERWISE.
(2) Components manufactured by any supplier other than Cameron shall bear only
the warranty made by the manufacturer of that product, and Cameron assumes no
responsibility for the performance or reliability of the unit as a whole.
(3) "In no event shall Cameron be liable for indirect, incidental, or consequential damages nor shall the liability of Cameron arising in connection with any products sold
hereunder (whether such liability arises from a claim based on contract, warranty, tort,
or otherwise) exceed the actual amount paid by Buyer to Cameron for the products
delivered hereunder."
(4) The warranty does not extend to any product manufactured by Cameron which has
been subjected to misuse, neglect, accident, improper installation or to use in violation
of instructions furnished by Cameron.
(5) The warranty does not extend to or apply to any unit which has been repaired or
altered at any place other than at Cameron's factory or service locations by persons
not expressly approved by Cameron.
Product Brand
Barton® is a registered trademark of Cameron International Corporation
("Cameron").
MEASUREMENT SYSTEMS
Formerly: NuFlo Measurement Systems • Barton Instrument Systems • Caldon, Inc.
HOUSTON
HEAD OFFICE
ASIA
PACIFIC
281.582.9500
+603.2287.1039
[email protected]
NORTH
AMERICA
EUROPE,
MIDDLE EAST
& AFRICA
1.800.654.3760
[email protected]
+44.1243.826741
[email protected]
USA • CANADA • UK • SCOTLAND • CHINA • UAE
A L G E R I A • M A L A Y S I A • S I N G A P O R E • www.c-a-m.com/flo