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Summary of Contents for Baratron 221B

Page 1: ...anual Mr s lnstruction stx SHATTUCK ROAD ANDOVER I ASSACHUSETTS 01810 538 975 2350 800 227 8766 FAX 508 97s 0093 1 1 5 9 6 1 P 1 A F t A H F t s 5 q MKSBorqfrop Type221 B Differentiol Pressure Gouge...

Page 2: ...l Information 3 Introduction 3 HowThisManual isOrganized 4 Customer Support 4 Chapter Two Installation 5 HowToUnpack theType221Unit 5 Unpacking Checklist 5 Setup 6 Chapter Three Overview 7 Transducer...

Page 3: ...l Single andDouble MetalFemrle Compression Finings 6 Figure 2 Mounting TheType221Transducer 6 Figure 3 Type221Block Diagram 8 Figure4 Type221Schematic DrawingC105024 9 Figure 5 Type221Outline Drawing...

Page 4: ...ousmaterialsareused usersmust takeresponsibilityto observethe proper safety precautions completelypurgethe instrumentwhennecessary andensurethatthematerialused is compatiblewith sealingmaterials PURGE...

Page 5: ...llow contaminants of anykind to entertheunit beforeor duringuse Contamination suchasdust dirt lint glasschips andmetalchipsmay permanently damagetheunit Definitionsof WARNING CAUTION andNOTE messages...

Page 6: ...tronics signalconditioningmeasuring circuits andsoforth iscontained in a flange mounted aluminumboxon theopposite endof thetransducer cable An electrical connector with a mateis providedto makeall inp...

Page 7: ...stomer Support Standard maintenance andrepairservices areavailableat all of our regionalMKS Calibration andServiceCenters listedon thebackcover In addition MKS accepts theinstruments of other manufact...

Page 8: ...he insideof thebackcoverof this manualfor a list of MKS CalibrationandServiceCenters Unpacking Checklist Caution Only qualified individuals should perform the installation and any user adjustments The...

Page 9: ...um fittings asshown in Thesefittings are commonly tightenedincorrectly causingdamageto the pressuresensor SingleFerrule DoubleFerrule Figurel SingleandDoubleMetalFemrlecompression Fittings The transdu...

Page 10: ...Rl2 to drive thebridgetransformerand thedemodulationinput The oscillatorproducesa high purity sinewavewhich is amplitudestabilizedby Q2 This FET amplifiercontrolsthegainof the amplifierU3 Q2 in turn i...

Page 11: ...eform Theoutputfrom thiscomparator is fed via C 12 andC 13 ro thegares of Q3 ande4 These switches alternately groundtheendsof T2 providinga recrifiedsignalro rheDC amplifier OutputDCAmplifier Thefinal...

Page 12: ...a d J J f rr r Y t a s s t g ri J J aD z v l t t I N5 l i4 5 i i s l r i I i l c a 1 i F t i i i i r f l a R R I r I i t i x quq lSi 3 i z ffiii J r S oi r s F Figure4 Typ 22t Schematic DrawingC 1050...

Page 13: ...l r r l l q l a l I l I tr e r 1 v 1 9 d Q o i 3 F EaB l e 9 old tr f 5 I I I e d i r I 1l tr o t z a z l l J J t l z o _ r o a I u l T f Zl v 5 l l 2 2 t z l 1i z t I i r 1 r l 9 t il I uj 2E o u lr...

Page 14: ...6 Cablesfor the200 SeriesTransducers Braided shielded cablesarerequiredto meetCE Mark specifications To orderbraidedshielded cables addan S afterthecabletype designation For example to orderanstandard...

Page 15: ...ltInput 6 l5 Volt Input 7 DC OutputSignal 8 Chassis Ground 9 DC Common I0 throughl4 NC Tablel Connector Pinout Theexternal powersupplymustbecapable of supplying 15Volts TVc at30 mA minimum Nt rise and...

Page 16: ...t thegauge or at the front panelif an MKS suppliedPDR or PDR Cis used until theoutputis 0 0Volts Thesameprocedure is used to adjustthe zeroat any time thereafter Gaugeswith full scalevaluesbelowatmosp...

Page 17: ...CEMarkcompliance 3 5 I I Components 3 Connector 13 Customer support 4 E Electronics 3 T ESDprecautions 5 External powersupply 5 I l 13 G Grounding 13 M Manualorganization 4 Messages definitions of 2 M...

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