Emerson Process Management T-SERIES Wiring, Core processor to a 4-wire remote transmitter

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Wiring

Step 4 Wiring

Hazardous area installations

If you are installing the sensor in a hazardous location, verify that the hazardous classification information printed on the sensor tag matches the environment in which the sensor will be installed.

Failure to comply with the requirements for intrinsic safety in a hazardous area could result in an explosion. Make sure the hazardous area specified on the sensor approval tag is suitable for the environment in which the sensor will be installed.

Improperly sealed housings can expose electronics to moisture, which can cause measurement error or flowmeter failure. Inspect and grease all gaskets and O-rings. Fully close and tighten all housing covers and conduit openings.

Installation options

The sensor has one of the following configurations:

•An integrally mounted Model 1700/2700 transmitter. No wiring is required between the sensor and the transmitter. Skip to Grounding on page 14.

•A core processor to a 4-wire remote transmitter (requires 4-wire cable); see Core processor to a 4-wire remote transmitter on page 10.

•A core processor to a remote host (requires 4-wire cable); refer to the Micro Motion MVD™ Direct Connect™ Flowmeter Installation Manual.

•A junction box to a 9-wire remote transmitter or remote core processor (requires 9-wire cable); see Junction box to a 9-wire remote transmitter or remote core processor on page 13.

Core processor to a 4-wire remote transmitter

Follow the steps below to connect the 4-wire cable between the core processor and the transmitter.

1.Use one of the following methods to shield the wiring from the core processor to the transmitter:

•If you are installing unshielded wiring in continuous metallic conduit that provides 360° termination shielding for the enclosed wiring, go to page 12 (step 6 of the wiring procedure).

•If you are installing a user-supplied cable gland with shielded cable or armored cable, terminate the shields in the cable gland. Terminate both the armored braid and the shield drain wires in the cable gland. Never connect the drain wires to the internal ground screw of the core processor. Go to page 12 (step 6 of the wiring procedure).

•If you are installing a Micro Motion-supplied cable gland at the core processor housing:

-Prepare the cable and apply shielded heat shrink as described below. The shielded heat shrink provides a shield termination suitable for use in the gland when using cable whose shield consists of foil and not a braid. Proceed to step 2 of the wiring procedure, below.

-With armored cable, where the shield consists of braid, prepare the cable as described below, but do not apply heat shrink. Proceed to step 2 of the wiring procedure, below.

2.Remove the cover from the core processor housing.

3.Slide the gland nut and the clamping insert over the cable.

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Contents Micro Motion Series Sensor Page Customer service TroubleshootingSpecifications Before You BeginEuropean installations Installation optionsDefinitions Purge plugsSeries sensor with core processor Hazardous area installations Determining a LocationFull flow tubes Environmental limitsSeries sensor ambient and process temperature limits UL and CSA ambient temperature limitsMaximum wiring distances Maximum cable lengthsPipe run ValvesOrienting the Sensor Self-draining applicationsHygienic applications Eccentric reducer Flow direction arrowMounting the Sensor Mounting a T-Series sensorWiring Core processor to a 4-wire remote transmitterWrapping the shield drain wires Applying the heat shrink Connecting the wires at the core processor Case purging procedure GroundingPurge Fittings Removing a purge plugTime required to purge T-Series sensor cases Purge rate Time Sensor modelReturn Policy New and unused equipmentUsed equipment Page 20002172
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