User’sManualRModel DM8Vibration Type Density MeterIM 12T03A01-02EIM 12T03A01-02E3rd Edition
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< 1. GENERAL >1-1IM 12T03A01-02E1. GENERALDensity is one of the fundamental physical quantities required when the property or composition of
< 1. GENERAL >1-2IM 12T03A01-02E 1.1.2 Detector(1) General Purpose Detector Model VD6DDetector construction: Non-explosion protection, rain-pro
< 1. GENERAL >1-3IM 12T03A01-02E1.1.3 Converter Model DM8CDisplay: Digital display, fi ve digits LEDDisplay contents: Density (g/cm3) after
< 1. GENERAL >1-4IM 12T03A01-02E • Output format Measured data space space# * . * * * * _ * . * * * * _ * * * . * CRLF(Note) Data are output in
< 1. GENERAL >1-5IM 12T03A01-02ECase construction: Dust and rain proof construction Coating color: Door: Equivalent to Munsell 2.8GY6.4/
< 1. GENERAL >1-6IM 12T03A01-02E 1.2 Models and Suffi x Codes1.2.1 General Purpose DetectorModel Suffi x Code Option Code DescriptionVD6D ••••••
< 1. GENERAL >1-7IM 12T03A01-02E1.3 External Dimensions1.3.1 DetectorGeneral Purpose and Flameproof Detector Models VD6D and VD6DFUnit : mm2
< 1. GENERAL >1-8IM 12T03A01-02E Sanitary Use Detector Model VD6DSUnit : mm246100192ø11010415316634510373200G3/458ø160146ø116ø74GlandSample lnle
< 1. GENERAL >1-9IM 12T03A01-02E1.3.2 Converter Model DM8C231431 35272240183138116212±1 222275±120028834 34 34 34Wiring port holes (5-ø27)(
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< 1. GENERAL >1-10IM 12T03A01-02E 1.3.3 Special Cable Model DM8WUnit : mmA4ABGRAYYELLOWBROWNREDREDWHITEWHITEBLUEBLUEGREENGREENBROWNYELLOWGRAY13
< 1. GENERAL >1-11IM 12T03A01-02E1.4 Cautions in Handling Flameproof, Explosionproof Instruments1.4.1 Outline of Explosionproof Instrument
< 1. GENERAL >1-12IM 12T03A01-02E 1.4.3 Installation Area and Ambient ConditionsModel VD6DF density detector can be installed in hazardous area
< 2. PRINCIPLES OF OPERATION >2-1IM 12T03A01-02E2. PRINCIPLES OF OPERATION2.1 Measuring Principle2.1.1 Density DetectorModel VD6D Density D
< 2. PRINCIPLES OF OPERATION >2-2IM 12T03A01-02E 2.1.2 Density ConverterThe density converter computes the liquid density using the oscillation
< 2. PRINCIPLES OF OPERATION >2-3IM 12T03A01-02E2.2 Main Components2.2.1 Density DetectorFigure 2.2 is a schematic diagram of the density de
< 2. PRINCIPLES OF OPERATION >2-4IM 12T03A01-02E 2.2.2 Density ConverterFigure 2.3 is a block diagram of the density converter.As shown in the d
< 3. INSTALLATION, PIPING AND WIRING >3-1IM 12T03A01-02E3. INSTALLATION, PIPING AND WIRINGModel DM8 vibration type density meter consists o
< 3. INSTALLATION, PIPING AND WIRING >3-2IM 12T03A01-02E (2) Bracket MountingThis bracket is not the pipe mounting bracket. Release the four bol
< 3. INSTALLATION, PIPING AND WIRING >3-3IM 12T03A01-02E(1) Flow DiagramFigure 3.5 shows a fl ow diagram of a typical sampling equipment. Mod
iIM 12T03A01-02E<INTRODUCTION> INTRODUCTIONThis manual describes the specifi cations, installation, operation, maintenance, and trouble-shooting
< 3. INSTALLATION, PIPING AND WIRING >3-4IM 12T03A01-02E Anchor boltDrain pitConcrete baseDensity meter sampling unitFigure 3.6 Installation Ex
< 3. INSTALLATION, PIPING AND WIRING >3-5IM 12T03A01-02E(4) Removing a Packing Sheet for Transportation from the Density DetectorThe vibrato
< 3. INSTALLATION, PIPING AND WIRING >3-6IM 12T03A01-02E 3.2 Installation of Density Converter3.2.1 Installation AreaThe density converter shou
< 3. INSTALLATION, PIPING AND WIRING >3-7IM 12T03A01-02E(1) Panel MountingThe pipe mounting bracket should be removed from the converter bef
< 3. INSTALLATION, PIPING AND WIRING >3-8IM 12T03A01-02E (2) Wall MountingRemove the pipe mounting bracket from the converter before wall mounti
< 3. INSTALLATION, PIPING AND WIRING >3-9IM 12T03A01-02E(3) Pipe MountingMounting bracket is applied to the pipe of nominal size 50A (diamet
< 3. INSTALLATION, PIPING AND WIRING >3-10IM 12T03A01-02E 3.3 PipingThe vibration type density meter requires the following piping;(1) Sample l
< 3. INSTALLATION, PIPING AND WIRING >3-11IM 12T03A01-02ESampling unitSampling lineMain pipeSludge is likely to collect here.Figure 3.15 Ex
< 3. INSTALLATION, PIPING AND WIRING >3-12IM 12T03A01-02E Sampling lineHeat insulating materialTrace pipeFigure 3.17 Steam Tracer PipeSampling
< 3. INSTALLATION, PIPING AND WIRING >3-13IM 12T03A01-02E3.4 WiringThe vibration type density meter requires the following wirings:(1) Wirin
iiIM 12T03A01-02E <INTRODUCTION> For the safe use of this equipment Safety, Protection, and Modifi cation of the Product• In order to protect
< 3. INSTALLATION, PIPING AND WIRING >3-14IM 12T03A01-02E Figure 3.21 shows terminal arrangement of the density detector.A2 A3 A5 B4A4 A6 B5Term
< 3. INSTALLATION, PIPING AND WIRING >3-15IM 12T03A01-02E Figure 3.23 Wiring to Density Detector Terminals Figure 3.24 Spanner for Open
< 3. INSTALLATION, PIPING AND WIRING >3-16IM 12T03A01-02E 3.4.2 Wiring for Analog Output SignalOutput signal of 4 to 20 mA DC output (load resi
< 4. OPERATION >4-1IM 12T03A01-02E4. OPERATION4.1 Component Names and Function4.1.1 Density DetectorVibrator assemblyCoverTerminal box cove
< 4. OPERATION >4-2IM 12T03A01-02E 4.1.2 Density ConverterData Display: Function No. and data are displayed.Function No. display Data displayFro
< 4. OPERATION >4-3IM 12T03A01-02E4.2 Operation4.2.1 Operation ModeOperation of the Model DM8 vibration type density meter ruled by the mode
< 4. OPERATION >4-4IM 12T03A01-02E Digital signal (Note 1)Measuring mode (DSPL)Measuring mode (DSPL)Maintenance mode (1)(MAINT)Maintenance mode
< 4. OPERATION >4-5IM 12T03A01-02EFunction No. ‘7’: Sets density of calibration solution 2 Density data (g/cm3) for the 2nd calibration (ca
< 4. OPERATION >4-6IM 12T03A01-02E Function No. ‘7.’: Sets high limit of the output range Sets a high limit density value (g/cm3) of an analog
< 4. OPERATION >4-7IM 12T03A01-02E4.3 Preparation for Measurement4.3.1 Check for PipingCheck the following points.(1) Is the pressure dif
iiiIM 12T03A01-02E<INTRODUCTION> Symbol MarksThroughout this user’s manual, you will fi nd several different types of symbols are used to identi
< 4. OPERATION >4-8IM 12T03A01-02E (5) Fully open “BV1” and “NV4” and half open “NV1” in the sampling unit. Close ‘drain’ valve opened in (3).
< 4. OPERATION >4-9IM 12T03A01-02E4.3.6 Pressure CompensationPressure compensation means to compensate the shift generated by measurement un
< 4. OPERATION >4-10IM 12T03A01-02E The one-point calibration is equal to that omitting the 2nd calibration two-point calibration, so, the two-p
< 4. OPERATION >4-11IM 12T03A01-02E(Note 2) The density value after calibration doesn’t always coincide with the density of the standard sol
< 4. OPERATION >4-12IM 12T03A01-02E 4.5 Operation4.5.1 Operation ProcedureStart the density measuring system, and monitor operating conditions f
< 5. MAINTENANCE >5-1IM 12T03A01-02E5. MAINTENANCE5.1 Daily Inspection/Maintenance5.1.1 Cleaning the Vibrator in the DetectorDirt particles
< 5. MAINTENANCE >5-2IM 12T03A01-02E 5.2 TroubleshootingExperiences are required for repair of the vibration type density meter; after parts are
< 5. MAINTENANCE >5-3IM 12T03A01-02EF0502.aiCheck point123456789Measuring instrument Measuring conditions Normal value12 V±10 %200 V±10 %5.8
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CustomerMaintenanceParts ListAll Rights Reserved, Copyright © 1987, Yokogawa Electric Corporation.Subject to change without notice.Model VD6D, VD6DF,
ivIM 12T03A01-02E <INTRODUCTION> After-sales Warranty Do not modify the product. During the warranty period, for repair under warranty consul
2CMPL 12T3E1-01E5th Edition : Apr. 2009Item Part No. Qty Description1 K9000PQ 1 Accessories Assembly2 L9827AR 1 Brush3 K9000NB 1 Injector4 L9827AE 1 A
CustomerMaintenanceParts ListAll Rights Reserved, Copyright © 1987, Yokogawa Electric Corporation.Subject to change without notice.Model DM8CDensity C
2CMPL 12T3H1-01E6th Edition : Mar. 2012Item Part No. Qty Description1 B1003JZ 1 Cable Gland2 L9811FP 4 Cable Gland3 K9141TV 1 Fuse (250 V, 3 A)4 G9612
iIM 12T03A01-02ERevision Information Title : Model DM8 Vibration Type Density Meter Manual No. : IM 12T03A01-02EJun. 2012/3rd Edition Page layou
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vIM 12T03A01-02E<CONTENTS>Model DM8Vibration Type Density MeterCONTENTSIM 12T03A01-02E 3rd Edition INTRODUCTION ...
viIM 12T03A01-02E <CONTENTS>2.2.2 Density Converter ...... 2-43. INSTAL
viiIM 12T03A01-02E<CONTENTS>5.1 Daily Inspection/Maintenance .................. 5-15.1.1
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