<> <> Model DM8 General Vibration Type Liquid Density Meter Specifications GS 12T3A1-E nOverview In 1967, YOKOGAWA developed the Model VD6 Vibration Type Liquid Density Meter in response to user requests for an online density meter, to assist in process automation and saving labor resources and energy while further improving and stabilizing quality. This was an important development in the instrumentation field, because density is a fundamental physical quantity, the accurate measurement of which is important for almost all processes. The VD6 density meter has gone on to develop an excellent reputation as a highly stable high sensitivity meter. The Model DM8 Vibration Type Density Meter is a highly reliable, multi-function meter developed on the basis of our experience with the VD6 and which takes advanrage Converter Detector of the latest computer technology to integrate a wide range of sensor techniques. Its converter incorporates a microprocessor to directly convert frequency signals from the sensor into density values and display them and is provided with a variety of functions such as one-touch calibration, self diagnosis, digital output (RS-232C), etc. Measuring liquid temperature: –10 to 100 °CnSystem Configuration Measuring liquid pressure: 2 MPa G or less Withstandable pressure: 4.9 MPa G Model VD6SM Steam tracing: Available Sampling unit Process connection: Rc1/4 Electrical connection: G3/4 Model DM8W Mounting: JIS 50A pipe mounting Model VD6D Special cable Model DM8C Transmission Ambient temperature: –10 to 50 °C Model VD6DF Detector Max. 2 km Converter signal Weight: Approx. 12 kg Model VD6DS (2) Flameproof (Explosionproof) Detector Model VD6DF nStandard Specifications Detector construction: TIIS d2G3 or NEC Class I, Division 1, Groups C and D, Flameproof construction 1. General Specifications Process connection: Rc1/4 or 1/4NPT female (only for Measurement object: Liquid density VD6DF-uu*B/FM) Measurement principle: Vibration density measurement Electrical connection: G3/4 or 3/4NPSM female (only for Measurement range: 3 VD6DF-uu*B/FM) Density: 0.5 to 2.0 g/cm Specifications are the same as for the (1) General Temperature: –10 to 100 °C Purpose Detector except for the above construction. Distance between Detector and Converter: Up to 2 km Power supply: 90 to 132 V AC or 180 to 264 V AC, (3) Sanitary Use Detector Model VD6DS 50/60 Hz Process connection: Special joint for connection to Power consumption:20 VA JIS 6A pipe (with gasket) Wetted part materials: Added to the standard model 2. Detector Gasket: Teflon (1) General Purpose Detector Model VD6D O-Ring: Viton Detector construction: Non-explosion protection, rain- Stream tracing: Not available proof construction Specifications are the same as for the (1) General Case material: Cast Aluminium alloy Purpose Detector except for the above two items. Case coating: Epoxy rasin, baked finish Temperature detector protecting tubes are detachable. Case color: Jade green (equivalent to Munsell 7.5BG4/ 1.5) These detectors cannot be used with highly corrosive Wetted part materials: liquids and solutions likely to stick to sensors. If it is desired Base: SUS316 to be applied to solutions containing slurry or sludge, Vibrator: SUS316 or Ni (Au Blazing: BAu·4) consult with YOKOGAWA. For measuring NaOH solutions, use sensors with a nickel vibrator. Yokogawa Electric Corporation GS 12T3A1-E 2-9-32, Nakacho, Musashino-shi, Tokyo, 180-8750 Japan ©Copyright Apr. 1998 Tel.: 81-422-52-5617 Fax.: 81-422-52-6792 7th Edition Apr. 2009 2 <> <> Mounting: To panel, wall or JIS 50A pipe 3. Converter Model DM8C Air purge connector: Rc1/8, Rc1/4, or 1/4NPT female is Display: Digital display, five digits LED also optionally available Display contents: 3 Electrical connection: Five holes, 27 mm dia. Density (g/cm ) after conversion to reference Attached with four plastic waterproof plugs temperature (center temperature) 3 equivalent to JIS A15, and one plastic Density (g/cm ) at the measuring temperature waterproof plug equivalent to JIS A20. Measuring liquid temperature (°C) 3 Weight: Approx. 7.5 kg Set density value for the calibration liquid (g/cm ) (displayed on call) 4. Special Cable Model DM8W Temperature coefficient set value for the calibration Type: Six-conductor double shield cable –5 3 liquid (310 g/cm /°C) (displayed on Insulator: Polyethylene call) Sheath: Polyvinyl chloride Output signal set value (%) (displayed on call) Insulation resistance: 1000 MV/km 3 Setting for output range low limit (g/cm ) (displayed Conductor resistance: 15.31 V/km on call) Finished O.D.: 15.8 mm 3 Setting for output range high limit (g/cm ) (displayed 5. Sampling Unit Model VD6SM on call) External dimensions: Approx. 400(W) 3 400(D) 3 Reference temperature (center temperature) set 1350(H) mm value (°C) (displayed on call) Coating finish: Epoxy resin, baked gray finish (equivalent Temperature coefficient set value for the measuring –5 3 to Munsell N7) liquid (310 g/cm /°C) (displayed on Watted part materials: SUS316, Teflon (gasket for call) flowmeter, pressure gauge and strainer), Ni Fault contents display for /FN option. Output signal: Weight: Approx. 80 kg Analog output: Process conditons: 4 to 20 mA DC (load resistance 550 V or less), and Inlet temperature: 0 to 100 °C 0 to 1 V DC (load resistance 250 kV or Inlet pressure: 0 to 1 MPa or 0 to 2 MPa more), isolated output. 3 Required differential pressure: At least 100 kPa Density (g/cm ) after conversion to the reference Flow rate: 1 to 10 l/min temperature Digital ooutput: FM TI PI To RS-232C BV1 NV4 DD 3 Density (g/cm ) after conversion to the reference Inlet temperature F 3 NV1 NV2 NV3 Density (g/cm ) at the measured temperature Measured liquid temperature Calibration state Outlet Failure alarm 3 Sampling System Diagram Output signal span: 0.05 to 0.5 g/cm settable Reference temperature set range: 0 to 100 °C (in Element specitications increments or decrements of 1 °C) F: Strainer body; SUS316, Contact output on failure: One point. Contact closed on element; SUS316, Ni fo /FN option failure or power failure. Contact open when PI: Pressure gauge, 0 to 1 MPa or 0 to 2 MPa, SUS316 TI: Thermometer, 0 to 100 °C or 0 to 150 °C, SUS316 normal. FM: Flowmeter, tapered metal tube flowmeter, 1 to 10 l/ Permissible voltage: 220 V DC, 250 V AC min, SUS316 Permissible current: 2A (resistive load) BV: Ball valve, SUS316 Permissible contact power: 60 W NV: Needle valve, SUS316 Fault detecting contents: Detector failure and converter DD: Density detector failure Note: This sampling system cannot normally be Failure output: applied to food applications, if it is desired to Analog signal: Falls down to about –10 % of the output be applied to food applications, consult with signal span YOKOGAWA. Digital signal: Error message outputs Output signal hold: Holds in the CAL. or Maintenance nCharacteristics mode. (overall characteristics after combing the detector and the Settable range for temperature coefficient: 0 to 0.002 g/ 3 converter) cm /°C –4 3 Calibration procedure: One-touch calibration by strong Repeatability: 5 3 10 g/cm (for digital output) calibration liquid density (one-point 1 % of span (for analog output) 3 Linearity: ±0.5 % of span (when span is 0.2 g/cm or calibration) Ambient temperature: –10 to 55 °C less) Power supply: 90 to 132 V AC or 180 to 264 V AC, ±1 % of span (when span is more than 0.2 g/ 3 cm ) 50/60 Hz Case construction: Dust and rain proof construction Temperature characteristics: ±0.5 % of span/±10 °C Coating color: (Compensating error for changes in the measuring liquid temperature and detector Door: Equivalent to Munsell 2.8GY6.4/0.9 Case: Equivalent to Munsell 2.0GY3.1/0.5 temperature) Coating finish: Baked finish epoxy resin All Rights Reserved. Copyright © 1988, Yokogawa Electric Corporation GS 12T3A1-E 7th Edition Apr.09,2009-00 3 <> <> Flow characteristics:±0.1 % of span in the 0 to 5 l/min range 3 Pressure characteristics: ±0.0005 g/cm /±98 kPa change Viscosity error: ±0.1 % of span in the 0 to 1500 cP range nStandard Accessories Syringe (for injecting standard 1 pc. (3) Sanitary Use Detector solution or solvenet) Brush (for cleaning the detector) 1 pc. Model Suffix code Option code Description Allen wrench for terminal box 1 pc. for Detector (VD6) VD6DS Sanitary use detector Allen wrench for locking the cover 1 pc. Vibrator -S3 SUS316 O-Ring 1 bag material Silica gel 2 packs B Style B * Fuse for the converter (3A) 1 pc. for Converter (DM8C) 2. Converter nModel and Suffix Codes Model Suffix code Option code Description DM8C Converter 1 . Detector Power -A1 90 to 132V AC, 50/60Hz (1) General Purpose Detector supply -A2 180 to 264V AC, 50/60Hz C Style C Model Suffix code Option code Description * (Option) /AP1 Rc1/4 VD6D General purpose detector Air purge connector /AP2 1/4NPT female Vibrator -S3 SUS316 material -N1 Ni B Style B * 3. Special Cable (2) Flameproof Detector Model Suffix code Option code Description DM8W Special cable Model Suffix code Option code Description Cable length -Lhhhh Length (unit: m) VD6DF Flameproof detector A Style A * Vibrator -S3 SUS316 material -N1 Ni (Note) Enter the cable length in “-Lhhhh in m.” B Style B [Example] L0050 for 50 m * (Option) /FM NEC Class I,Division 1,Group L0100 for 100 m C and D, explosionproof L2000 for 2 km 4. Sampling Unit Option Description Model Suffix code code Sampling unit for Vibration type Density Meter (Note 1) VD6SM -JPT Rc1/2 -10K JIS 10K 15 RF Flange -20K JIS 20K 15 RF Flange Piping -150 ANSI Class 150 1/2 RF Flange connection -300 ANSI Class 300 1/2 RF Flange -151 JPI Class 150 1/2 RF Flange -301 JPI Class 300 1/2 RF Flange -WST 1/2 inch welding socket -PG10 1 MPa Pressure -PG20 2 MPa guage -PK10 Diaphragm type 1 MPa range -PK20 Diaphragm type 2 MPa -T100 0 to 1008C Temperature range -T150 0 to 1508C B Style B Style code * Option With steam tracing (Note 2) /ST Ni (Note 3) Material of strainer element /FN (Note 1) VD6SM Sampling unit is not including Detector. Order detector VD6D or VD6DF, separately. DM8C converter and special cable DM8W are also required for sampling system of density meter. (Note 2) If stean tracing is necessary, select the diaphragm type pressure guage. (Note 3) If measuring solution includes NaOH (%30%) , select option code /FN of Ni. All Rights Reserved. Copyright © 1988, Yokogawa Electric Corporation GS 12T3A1-E 7th Edition Apr.09,2009-00 4 <> <> nWiring Connection Detector Special cable Converter RED Closed when a failure A2 A2 N.C Alarm is detected or the BLUE A3 A3 C power fails. YELLOW • Density signal after being A4 A4 SG converted to the reference BROWN A6 A6 temperature state Digital signal RD • Density signal before GREEN A5 A5 being converted to the TD WHITE reference temperature state B4 B4 • Temperature signal GRAY + B5 B5 0 to 1V DC - Density signal after being converted to the reference + temperature state 4 to 20mA DC - G L1 L2 Power supply nExternal Dimensions 1. Detector lGeneral Purpose and Flameproof Detector Models VD6D and VD6DF 246 Unit: mm 100 192 Steam Connection Rc1/4 Sample lnlet Rc1/4 (1/4NPT for VD6DF-uu*B/FM) [116 (1/4NPT for Sample Outlet Rc1/4 [74 VD6DF-uu*B/FM) (1/4NPT for VD6DF-uu*B/FM) 50A (2-inch) Pipe (Horizontal or Vertical) Electrical Wiring Port G3/4 (3/4NPSM for VD6DF-uu*B/FM) [160 146 All Rights Reserved. Copyright © 1988, Yokogawa Electric Corporation GS 12T3A1-E 7th Edition Apr.09,2009-00 200 342 100 78 [110 58 104 153 5 <> <> lSanitary Use Detector Model VD6DS 246 Unit: mm 100 192 Gland 166 [116 Sample lnlet * Sample Output * [74 50A (2-inch) Pipe (Horizontal or Vertical) Electrical Wiring Port G3/4 [160 146 * The ends of sample inlet and outlet are connected with 6A (1/8-inch) pipe in welding. The pipe may be removed by loosing the gland. All Rights Reserved. Copyright © 1988, Yokogawa Electric Corporation GS 12T3A1-E 7th Edition Apr.09,2009-00 200 345 103 73 [110 58 104 153 6 <> <> 2. Converter Model DM8C Unit: mm Mounting bracket (applicable with any mounting Wiring port holes (5-ø27) method to panels, walls or pipes) (with rubber plugs) Mounting panel thickness Max. 12 Purge air inlet Rc1/8 Pipe mounting bracket Purge air outlet (with seal sheet) Mounting pipe (50A (2-inch) pipe) 3. Special Cable Model DM8W Density detector Density converter Unit: mm 130(from A) (from B)100 B4 B4 WHITE 60(from A) (from B) WHITE 80 B5 B5 GRAY A B GRAY (from B) 50m, 100m, or 2km 110(from A) 120 A2 A2 RED RED A3 A3 (from B) BLUE 110(from A) BLUE 110 A4 A4 60 YELLOW YELLOW (from B)100 [15.8 (from A) A5 A5 GREEN 110(from A) GREEN (from B)90 A6 A6 BROWN 60(from A) (from B)80 BROWN All Rights Reserved. Copyright © 1988, Yokogawa Electric Corporation GS 12T3A1-E 7th Edition Apr.09,2009-00 7 <> <> 4. Sampling Unit Model VD6SM Unit: mm Steam Trap 270 400 Note: Some detail of steam trace 50 tube omitted in this drawings. 4 - [15 (*1): Only for with steam trace.(option /ST) 50 holes 300 P - P view (Steam trace only) (*1) 400 For Anchor Bolts Pressure Gauge Thermometer Detector 1350 Condensate Outlet(*1) 125 150 Flowmeter Steam P P Sample (*1) Inlet Outlet Sample Inlet strainer 150 200 34 (100) Approx.407 L 100 200 L (for flange) (for welding socket) L Model and Codes Connection Type VD6SM - JPT - Puu 0 - T1 u 0 pB Rc 1/2 female 0 VD6SM - 10K - Puu 0 - T1 u 0 pB JIS 10K 15 RF Flange 100 VD6SM - 20K - Puu 0 - T1 u 0 pB JIS 20K 15 RF Flange 100 VD6SM - 150 - Puu 0 - T1 u 0 pB ANSI Class 150 1/2 RF Flange 100 VD6SM - 300 - Puu 0 - T1 u 0 pB ANSI Class 300 1/2 RF Flange 100 VD6SM - 151 - Puu 0 - T1 u 0 pB JPI Class 150 1/2 RF Flange 100 VD6SM - 301 - Puu 0 - T1 u 0 pB JPI Class 300 1/2 RF Flange 100 VD6SM - WST - Puu 0 - T1 u 0 pB 1/2 B Welding Socket 100 All Rights Reserved. Copyright © 1988, Yokogawa Electric Corporation GS 12T3A1-E 7th Edition Apr.09,2009-00 8 <> <> Inquireis sheet for the Vibration Liquid Density Meter Thank you for inqurity on our vibrationliquid density meter. Please specify your requiremets by checking the appropriate boxes and filling in the blanks with the requested information. 1. General Items Company name: Contact person: Section: Address: (Phone No. ) Plant name: Measurement location: Purpose: u Indication u Recording u Alarm u Control 2. Measurement conditions (1) Liquid temperature: to , normally [°C] (2) Liquid pressure: to , normally [kPa] (3) Liquid flowrate: to , normally [l/min] (4) Slurry or soiling components?: u Yes u No (5) Name of measured liquid: (6) Composition of measured liquid: (7) Other: 3. Installation location (1) Ambient temperature: (2) Installation location: u Outdoors u Indoors (3) Other: 4. User requirements (1) Measurement range: (2) Vibration material: u SUS316 u Ni (3) Cable length between detector and converter: m (4) Power supply: u 90 to 132 V AC u 180 to 264 V AC (5) Other: All Rights Reserved. Copyright © 1988, Yokogawa Electric Corporation GS 12T3A1-E 7th Edition Apr.09,2009-00