NuFlo Barton 202E - SECTION 3 - MAINTENANCE AND CALIBRATION; Differential Pressure Pen Calibration


3%#4)/.-!).4%.!.#%!.$#!,)"2!4)/.
2EQUIRED4OOLS
4OOL
0URPOSE
INCH/PEN%ND7RENCH 0USHROD"ELLOWS#UP#ONNECTION
-ODIlED"OX/PEN%ND
INCH7RENCH +ICKOFF3PRING,OCK.UT
4ORQUE7RENCHFTLBS 0RESSURE(OUSING"OLTS
3CREWDRIVER "RACKET3CREWS
-AINTENANCE
'ENERALLY"ARTONRECORDERSREQUIRENOMAINTENANCEOTHERTHANREPLACEMENTOF
THECHARTREPLENISHMENTOFTHEINKWINDINGOFTHESPRINGWOUNDCHARTDRIVES
ANDOCCASIONALCALIBRATION)NADDITIONTHEOPERATORSHOULDPERIODICALLYCHECK
THEDOORSEALFORWEARANDTHEPRESSURElTTINGSFORTIGHTNESS
$IFFERENTIAL0RESSURE0EN#ALIBRATION2EFERTOPAGE
4OCALIBRATETHE$0PEN
  -AKESURECHARTPLATEISONSAMEPLANEANDmUSHWITHHUBmANGE4HECHART
MUSTBEmATWITHTHEHUBLOCKED!LSOMAKESURETHEPENSANDPENARMS
ARECORRECTLYCONNECTEDANDTHATTHEYDONOTINTERFEREWITHONEANOTHER
  7ITHACHARTLOCKEDINTOPLACEMOVETHEPENFROMZEROTOFULLSPANAND
BACKTOENSURETHATTHEPENTRAVELSALONGTHETIMELINE)FADJUSTMENTSARE
NEEDEDLOOSENTHETWOPENMOUNTSCREWSADJUSTTHEPENMOUNTPOSITION
UNTILTHEPENFOLLOWSTHETIMELINETHENTIGHTENTHEPENMOUNTSCREWS
  $ISCONNECTTHEDIFFERENTIALPRESSUREDRIVELINKFROMTHERANGEARM-OVE
BOTHDIFFERENTIALANDSTATICPRESSUREPENSTOFULLSPAN!DJUSTTHESTATICPEN
SOTHATPENSAREAPPROXIMATELYMINUTESAPARTBYADJUSTINGTHESTATIC
PENARMMOUNTINGLOCATIONONTHEPENARMSHAFTASSEMBLY-OVEBOTHPENS
TOTHEINDICATINGPOSITION%NSURETHATTHEPENSDONTINTERFEREWITH
ONEANOTHER!DJUSTSTATICPENSASNECESSARYDONOTALTERTHEDIFFERENTIAL
PRESSUREPENONCEITHASBEENADJUSTEDTOTHETIMELINE
  !SSURETHATTHEREISENOUGHPENPRESSUREAGAINSTTHECHARTTOPRODUCEA
CONTINUOUSLINE)FNECESSARYADJUSTTHEPENPRESSUREBYBENDINGTHEARM
INTHEREQUIREDDIRECTION
  5NLOCKTHEmOWRECORDERHUBCLIP2EMOVETHECHARTANDCHARTPLATE
.OTE0REPAREACALIBRATIONCHARTBYCUTTINGACHARTINTOTHEWEDGESHAPE
ANDGLUINGITTOAPIECEOFSIMILARLYSHAPEDCARDBOARDOFSTIFFENER4HISALLOWS
CALIBRATIONOFTHEPENSANDPERMITSACCESSTOTHEmOWRECORDERMECHANISM
WHENLINKAGEADJUSTMENTSARENECESSARY
  -OUNTACALIBRATIONCHARTONTOTHEmOWRECORDERHUB,OCKTHECHARTIN
PLACE-OVEOVERRANGESTOPSOUTOFPLAY
.OTICE6ERIFYTHATALLLINKAGEISFREE!DJUSTRANGEARMANDDRIVEARM
ATPRECISELYTHESAMEDISTANCEBACKOFTHECASE!DJUSTTHELEVERARMAND
PENZEROADJUSTSCREWSTOTHEIRMIDPOINTSALLMIDSCALELINKAGEANGLES
MUSTBEMEASURED