Emerson 2700 Hazardous area mA output wiring, Hazardous area frequency/discrete output wiring

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Output Wiring – Model 1700/2700 Intrinsically Safe Transmitters

5.4.2Hazardous area mA output wiring

Figure 5-7provides an example of basic hazardous area wiring for the Model 1700 transmitter’s mA output or the Model 2700 transmitter’s primary mA output.

Figure 5-7Hazardous area mA output wiring

Output Wiring – Intrinsically

Hazardous area

Safe area
	Vin
Rbarrier
	Vout
4-20 mA	Rload
	Ground

Note: Rbarrier and Rload should be added together to determine the proper Vin. Refer to Figure 5-2.

Safe

Output Wiring – Configurable I/O Output

5.4.3Hazardous area frequency/discrete output wiring

The following frequency/discrete output wiring diagrams are examples of proper hazardous area wiring for the Model 1700 transmitter’s frequency output or the Model 2700 transmitter’s frequency/discrete output:

•The diagram in Figure 5-8utilizes a galvanic isolator that has an internal 1000 Ω resistor used for sensing current:

-ON > 2.1 mA

-OFF < 1.2 mA

•The diagram in Figure 5-9utilizes a barrier with external load resistance.

Wiring – Fieldbus/PROFIBUS

Specifications

Installation Manual

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Contents Micro Motion Model 1700 Model 2700 Transmitters Page Contents Index Before You Begin SafetyOverview Flowmeter components Flowmeter documentation 1Flowmeter documentation resources Transmitter installation proceduresMicro Motion customer service Installation architecture Installing the Transmitter1Installation types Determining an appropriate location Temperature limitsPower source AC power requirements1Typical power cable resistances at 68 F 20 C DC power requirementsMounting the transmitter Accessibility for maintenanceMaximum cable lengths 2Maximum cable lengths2Rotating the transmitter Integral installations34-wire remote Wall mount or pipe mount 59-wire remote Wall mount or pipe mount 3 9-wire remote installationsMounting the remote core processor 6Transmitter/core processor assembly Exploded view7Remote core processor Wall mount or pipe mount 3Grounding methods for flowmeter components Grounding the flowmeter componentsRotating the display Supplying powerInstalling the Transmitter 10Display components Cable types Wiring the Transmitter to the Sensor2 9-wire cable 1 4-wire cableWiring for 4-wire remote installations 3Wiring to the mating connector Core processor on transmitter Wiring for 9-wire remote installationsSubtask 1 Wire the remote core processor to the transmitter 5Cable glands 7Wrapping the shield drain wires 10Gland body and core processor housing 129-wire cable between sensor and core processor Subtask 2 Wiring the sensor to the remote core processorWiring the Transmitter to the Sensor 1Terminals and output types Output Wiring Model 1700/2700 Analog TransmittersOutput wiring Output terminals and output types1Basic analog wiring 2HART/analog single-loop wiring Smart Family Output Wiring Intrinsically Safe Safe area mA output wiring Safe area output wiring2Safe area mA output load resistance values 5Safe area frequency/discrete output wiring Safe area frequency/discrete output wiringHazardous area safety parameters Hazardous area output wiringHazardous area capacitance 2Safety parametersHazardous area voltage Hazardous area currentHazardous area frequency/discrete output wiring Hazardous area mA output wiringHazardous area Channel configuration Output Wiring Model 2700 Configurable I/O TransmittersMA output wiring 1Channel configuration2Basic mA wiring Frequency output wiring 5Frequency output Terminals 3 & 4 Channel B Internal power 7Frequency output Terminals 5 & 6 Channel C Internal power 9Discrete output 1 Terminals 3 & 4 Channel B Internal power Discrete output wiring11Discrete output 2 Terminals 5 & 6 Channel C Internal power Volts Voltage Output Level High 2Input voltage ranges for external power Discrete input wiring16Discrete input Terminals 5 & 6 Channel C Internal power Micro Motion Model 1700 and 2700 Transmitters 1Connecting the fieldbus communication wires Foundation fieldbus wiring2Connecting the PROFIBUS-PA communication wires PROFIBUS-PA wiringService port connection SpecificationsFunctional specifications Power connectionCore processor connection Input/output signals Input signal from sensorFisco and Fnico approval Specifications Operating Absolute minimum = 100 Ohms for V supply 25.6 volts Specifications Foundation fieldbus or PROFIBUS-PA transmitters Service portDigital communication HART/Bell202EMC compliance Power supplyEnvironmental requirements Ambient temperature limits Ambient temperature effectAtex and IECEx UL and CSATransmitter OutputsMounting Performance specificationsPhysical specifications HousingDimensions WeightInterface/display Dimensions in inchesmm Inches Dimensions in mm Or M20 × 11/16 160 13/16 139 ″-14 NPT 158 182 × Ø3/8 13/16 148 15/16 × 1/2″-14 NPT Figure A-5Dimensions Remote core processor Atex IndexRemote core processor with remote Index Micro Motion Model 1700 and 2700 Transmitters Page 20001700