Emerson 1700, 2700 installation manual Safe area output wiring, Safe area mA output wiring

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Output Wiring – Model 1700/2700 Intrinsically Safe Transmitters

5.3Safe area output wiring

The following notes and diagrams are designed to be used as a guide for wiring the Model 1700 or Model 2700 outputs for safe area applications.

5.3.1Safe area mA output wiring

The following 4–20 mA wiring diagrams are examples of proper basic wiring for the Model 1700 mA output or Model 2700 primary and secondary mA outputs.

Note: This diagram shows the Model 2700, which has a secondary mA output. If you are using the Model 1700, the secondary mA output does not exist.

Figure 5-1Safe area basic mA output wiring

	VDC	+	+
		+
		–
		–
Rload			–
			mA1

			+
	VDC	+	–
		+
		–	mA2
		–

Rload

Note: See Figure 5-2for voltage and resistance values.

34	Micro Motion® Model 1700 and 2700 Transmitters

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Contents Micro Motion Model 1700 Model 2700 Transmitters Page Contents Index Overview SafetyBefore You Begin Flowmeter components Transmitter installation procedures Flowmeter documentation 1Flowmeter documentation resourcesMicro Motion customer service Installing the Transmitter Installation architecture1Installation types AC power requirements Temperature limitsPower source Determining an appropriate locationDC power requirements 1Typical power cable resistances at 68 F 20 C2Maximum cable lengths Accessibility for maintenanceMaximum cable lengths Mounting the transmitterIntegral installations 2Rotating the transmitter34-wire remote Wall mount or pipe mount 3 9-wire remote installations 59-wire remote Wall mount or pipe mount6Transmitter/core processor assembly Exploded view Mounting the remote core processor7Remote core processor Wall mount or pipe mount Grounding the flowmeter components 3Grounding methods for flowmeter componentsSupplying power Rotating the displayInstalling the Transmitter 10Display components Wiring the Transmitter to the Sensor Cable typesWiring for 4-wire remote installations 1 4-wire cable2 9-wire cable 3Wiring to the mating connector Wiring for 9-wire remote installations Core processor on transmitterSubtask 1 Wire the remote core processor to the transmitter 5Cable glands 7Wrapping the shield drain wires 10Gland body and core processor housing Subtask 2 Wiring the sensor to the remote core processor 129-wire cable between sensor and core processorWiring the Transmitter to the Sensor Output terminals and output types Output Wiring Model 1700/2700 Analog TransmittersOutput wiring 1Terminals and output types1Basic analog wiring 2HART/analog single-loop wiring Smart Family Output Wiring Intrinsically Safe Safe area output wiring Safe area mA output wiring2Safe area mA output load resistance values Safe area frequency/discrete output wiring 5Safe area frequency/discrete output wiringHazardous area output wiring Hazardous area safety parametersHazardous area current 2Safety parametersHazardous area voltage Hazardous area capacitanceHazardous area mA output wiring Hazardous area frequency/discrete output wiringHazardous area Output Wiring Model 2700 Configurable I/O Transmitters Channel configuration1Channel configuration MA output wiring2Basic mA wiring Frequency output wiring 5Frequency output Terminals 3 & 4 Channel B Internal power 7Frequency output Terminals 5 & 6 Channel C Internal power Discrete output wiring 9Discrete output 1 Terminals 3 & 4 Channel B Internal power11Discrete output 2 Terminals 5 & 6 Channel C Internal power Volts Voltage Output Level High Discrete input wiring 2Input voltage ranges for external power16Discrete input Terminals 5 & 6 Channel C Internal power Micro Motion Model 1700 and 2700 Transmitters Foundation fieldbus wiring 1Connecting the fieldbus communication wiresPROFIBUS-PA wiring 2Connecting the PROFIBUS-PA communication wiresPower connection SpecificationsFunctional specifications Service port connectionFisco and Fnico approval Input/output signals Input signal from sensorCore processor connection Specifications Operating Absolute minimum = 100 Ohms for V supply 25.6 volts Specifications HART/Bell202 Service portDigital communication Foundation fieldbus or PROFIBUS-PA transmittersAmbient temperature effect Power supplyEnvironmental requirements Ambient temperature limits EMC complianceOutputs UL and CSATransmitter Atex and IECExHousing Performance specificationsPhysical specifications MountingInterface/display WeightDimensions 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 Index AtexRemote core processor with remote Index Micro Motion Model 1700 and 2700 Transmitters Page 20001700