Emerson Micro Motion Fork Viscosity Meters - Manual

1.2 Best practices The following information can help you get the most from your meter. • Handle the meter with care. Follow local practices for lifting or moving the meter. • Perform a Known Density Verification (KDV) check of the meter prior to installingthe meter in your system. • For the PFA-coa...

Power cable recommendations for explosion-proof/flameproof meters Minimum wire gauge (AWG per feet) Figure 1-1: 300 600 900 1200 1500 1800 2100 2400 2700 3000 Distance of Installation (f t) 21.6V24V 14 15 16 17 18 19 20 21 22 23 24 25 26 AWG Maximum Minimum Wire Gauge Minimum wire area (mm 2 per met...

1.4 Other installation considerations A variety of external factors exist that affect the ability of the meter to operatesuccessfully. To ensure that your system works correctly, consider the effects of thesefactors when designing your installation. 1.4.1 Calibration boundaries Important Micro Motio...

Region of measurement boundary or sensitivity Figure 1-3: B A C ST ATUS SCROLL SELECT A. Long axis B. Short axis C. Sensitive, or effective, region When installing the meter, if part of this effective region or volume is interfered withbecause of the pipework or fittings a boundary effect exists (se...

Example of pipeline installation (with boundary effect) Figure 1-4: A ST ATUS SCROLL SELECT A. Pipe walls interrupt effective region of meter sensitivity 1.4.2 Flow rate considerations You must maintain flow rates and velocities to be relatively constant within the limitsspecified for the meter. The...

• Maintain a back pressure on the system sufficient to prevent gas break out. • Maintain flow velocity at the sensor within the specified limits. 1.4.4 Solids measurement considerations Consider the following to avoid issues related to solids contamination: • Avoid sudden changes of the fluid veloci...

Standard installation types: short-stem meters Table 1-1: Installation type: Free stream T-Piece Flow-throughchamber Meter placement Meter tines areinserted directly intothe main fluid flow.The meter must alwaysbe installedhorizontally and withthe tines oriented toallow flow through orbetween the ga...

Power supply wiring terminals Figure 1-5: A A. 24 VDC 4. Perform a Known Density Verification (KDV) check. The Known Density Verification procedure is used to verify that the meter's currentoperation matches the factory calibration. If the meter passes the test, then it hasnot drifted or changed sin...

2 Mounting Topics covered in this chapter: • Mount in free-stream application (flanged fitting) • Mount in free-stream application (weldolet fitting) • Mount with a T-piece (flanged fitting) • Mount with a flow-through chamber • Mount in an open tank (long-stem meter) • Mount in a closed tank (long-...

Free-stream (flanged fitting) meter installation Figure 2-1: B A STA TUS SCROLL SELECT Plan view of a vertical pipe installation A. 4-inch pipe for horizontal installations; 6-inch (152 mm) pipe for vertical installationsB. Size the recess mount so that the meter tines are inserted fully into the li...

Note - Flow velocity at the pipe wall and fluid viscosity must be within the limits shown to ensurethat the fluid within the pocket is refreshed in a timely manner. This installation will notrespond as rapidly as the free-stream installation to step changes in viscosity. - The thermal mass of the fl...

2.4 Mount with a flow-through chamber Flow-through chambers are manufactured by Micro Motion, and are available with eitherweld-prepared ends or with flange or compression fittings for connection into the processpipelines. They are available with 1- inch NB, 2-inch NB, or 3-inch NB inlet and outlet ...

Flow-through chamber meter installation Figure 2-4: A A. Optional temperature port Note • This flow-through chamber is a direct-insertion type chamber that does not have a thermowell anduses a ¾ -inch Swagelok connection. • The three compression fittings on the flow pockets ( ½ -inch drain, ¾ -inch ...

Meter placement (immersed in fluid) Figure 2-7: 4. Confirm the meter tines are placed away from objects and disturbed flow. Meter placement (distance from objects and disturbed flow) Figure 2-8: A A A. 200 mm 5. If flow exists, confirm the meter tines are aligned so that the flow is directed towards...

Meter placement (flow direction through tine gap) Figure 2-9: 6. Confirm the meter tines are kept away from deposit buildup. Meter placement (away from deposit buildup) Figure 2-10: 2.6 Mount in a closed tank (long-stem meter) 1. Attach the long-stem meter using the fitted flange attachment (shipped...

Meter placement (immersed in fluid) Figure 2-14: 5. Confirm the meter placement has allowed for the flexing of the tank lid to preventthe meter from being pushed towards a tank wall or into the path of disturbed flow. Meter placement (allowance for tank lid flexing) Figure 2-15: A A A. 200 mm 6. Con...

Meter placement (away from deposit buildup) Figure 2-18: 2.7 Attach the PFA ring and circlip You attach the PFA ring (and circlip) around the boss on the underside of the meter flangeto center the meter tines within a 2-inch Schedule 40 or 80 pipe. The circlip holds the ringin place. Note If you are...

Attaching a PFA ring and circlip Figure 2-19: B A C A. Circlip (not provided with self-locking PFA rings)B. PFA ringC. PFA ring and circlip attached 2.8 Rotate the electronics on the meter (optional) You can rotate the transmitter on the meter up to 90°.1. Using a 4 mm hex key, loosen the cap screw ...

2.9 Rotate the display on the transmitter (optional) The display on the transmitter electronics module can be rotated 90° or 180° from theoriginal position. Display components Figure 2-21: B C D A D E A. Transmitter housing B. Sub-bezel C. Display module D. Display screws E. Display cover Procedure ...

3 Wiring Topics covered in this chapter: • Available output terminals and wiring requirements • Explosion-proof/flameproof or non-hazardous output wiring • Processor wiring for remote-mount 2700 FOUNDATION fieldbus ™ option • Wiring to external devices (HART multidrop) • Wiring to signal converters ...

3.2 Explosion-proof/flameproof or non-hazardous output wiring 3.2.1 Wire the Analog outputs version in an explosion-proof/ flameproof or non-hazardous area CAUTION! Meter installation and wiring should be performed by suitably trained personnel only inaccordance with the applicable code of practice....

Wiring the Analog outputs version Figure 3-1: mA1+ HART RS-485 PWR mA2 A A B RS-485 A RS-485 B C D B B A A A A. 24 VDCB. R load (250 Ω resistance) C. HART-compatible host or controller; and/or signal deviceD. Signal device Note For operating the milliamp outputs with a 24V supply, a maximum total lo...

Wiring the Discrete output version Figure 3-2: mA1+ HART RS-485 PWR DO A A B RS-485 A RS-485 B C E D B A A A A. 24 VDCB. R load (250 Ω resistance) C. HART-compatible host or controller; and/or signal deviceD. R load (500 Ω resistance recommended) E. Discrete input device Note • For operating the mil...

• Metal cable glands should be used where the cables enter the meter amplifier box. Unused cableports should be fitted with metal blanking plugs. 3.3 Processor wiring for remote-mount 2700 FOUNDATION fieldbus ™ option 3.3.1 RS-485 entity parameters for the remote-mount 2700 FOUNDATION fieldbus ™ opt...

RS-485 output and cable entity parameters (continued) Table 3-2: Maximum external inductance (L o ) 260 µH Maximum external inductance/resistance ratio(L o /R o ) 124.4 µH/ Ω 3.3.2 Prepare the 4-wire cable Important For user-supplied cable glands, the gland must be capable of terminating the drain w...

4-wire cable preparation Figure 3-3: Cable layout Run conduit to sensor Metal conduit Wrap the drain wires twice around the shield and cut off the excess drain wires. Micro Motion cable gland Pass the wires through the gland. Terminate the drain wires inside the gland. Cable glands Remove the core p...

4-wire cable shielding Figure 3-4: Assemble the Gland1. Fold the shield or braid back over the clamping insert and 1/8 inch (3 mm) past the O-ring. 2. Install the gland body into the conduit opening on the core processor housing.3. Insert the wires through gland body and tighten the gland nut onto t...

• Twisted pair construction. • Applicable hazardous area requirements, if the core processor is installed in ahazardous area. • Wire gauge appropriate for the cable length between the core processor and thetransmitter. • Wire gauge of 22 AWG or larger, with a maximum cable length of 1000 feet. 3.3.3...

3.4 Wiring to external devices (HART multidrop) You can wire up to three external HART devices with the meter. The following informationprovides wiring diagrams for making those connections in safe and hazardousenvironments. Wiring Installation Manual 39

3.5.1 Wire to a signal converter/flow computer in an explosion-proof/flameproof or non-hazardous area Wiring to a signal converter/flow computer in an explosion-proof/ flameproof or non-hazardous area Figure 3-7: mA1+ HART RS-485 PWR TPS A A B 24 VDC RS-485 A RS-485 B A B A. Active HART host B. Acti...

4 Grounding The meter must be grounded according to the standards that are applicable at the site.The customer is responsible for knowing and complying with all applicable standards. Prerequisites Micro Motion suggests the following guides for grounding practices: • In Europe, EN 60079-14 is applica...