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Emerson 1700, 2700 installation manual wirecable, 3.3Wiring for 4-wireremote installations

Models: 2700 1700

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3.2.14-wire cable

Wiring the Transmitter to the Sensor

3.2.14-wire cable

Micro Motion offers two types of 4-wire cable: shielded and armored. Both types contain shield drain wires.

User-supplied 4-wire cable must meet the following requirements:

•Twisted pair construction

•The gauge requirements as described in Table 2-2

•The applicable hazardous area requirements, if the core processor is installed in a hazardous area (see the approval documentation shipped with the transmitter or available on the Micro Motion web site)

3.2.29-wire cable

Micro Motion offers three types of 9-wire cable: jacketed, shielded, and armored. Refer to Micro Motion’s 9-Wire Flowmeter Cable Preparation and Installation Guide for detailed descriptions of these cable types and for assistance in selecting the appropriate cable for your installation.

3.3Wiring for 4-wire remote installations

To connect the cable, follow the steps below.

1.Prepare the cable as described in the sensor documentation.

2.Connect the cable to the core processor as described in the sensor documentation.

3.To connect the cable to the transmitter:

a.Identify the wires in the 4-wire cable. The 4-wire cable supplied by Micro Motion consists of one pair of 18 AWG (0,75 mm2) wires (red and black), which should be used for the VDC connection, and one pair of 22 AWG (0,35 mm2) wires (green and white), which should be used for the RS-485 connection.

b.Connect the four wires from the core processor to terminals 1–4 on the mating connector of the transmitter. See Figures 3-1,3-2,and 3-3.Never ground the shield, braid, or drain wire(s) at the transmitter.

Figure 3-14-wire cable between enhanced core processor and transmitter

Core processor	4-wire cable
terminals	Maximum cable length: see Table 2-2
	Maximum cable length: see Table 2-2

User-supplied or

factory-supplied cable

VDC+ (Red)

VDC– (Black)

RS-485A (white)

RS-485B (Green)

Mating connector (transmitter)

VDC+

VDC–

RS-485A

RS-485B

20	Micro Motion® Model 1700 and 2700 Transmitters

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Emerson 1700, 2700 installation manual wirecable, 3.3Wiring for 4-wireremote installations

Contents

Micro Motion Model 1700 and Model 2700 TransmittersInstallation Manual Installation ManualPage Contents Installation ManualContents Micro Motion Model 1700 and 2700 TransmittersChapter Before You Begin1.2Safety 1.1Overview1.3Flowmeter components 1.5Transmitter installation procedures 1.6Flowmeter documentationTable 1-1 Flowmeter documentation resources 1.7Micro Motion customer service Installing the Transmitter 2.2Installation architectureChapter 2.1OverviewFigure 2-1 Installation types Installing the TransmitterIntegral 4-wireremote 9-wireremote 9-wirecableTemperature limits 2.3.3Power sourceAC power requirements 2.3Determining an appropriate locationDC power requirements 2.3.5Accessibility for maintenance Installing the TransmitterWire gauge 2.3.4Maximum cable lengths2.4.1Integral installations Figure 2-2 Rotating the transmitterTo mount the transmitter 2.4.39-wireremote installations 2.5Mounting the remote core processor Figure 2-8 Remote core processor components Installing the Transmitter Installation2.6Grounding the flowmeter components architecture2.7Supplying power Figure 2-9 Wiring the transmitter power supply2.8Rotating the display Warning flap1.Power down the transmitter Installing the Transmitter Figure 2-10 Display componentsMain enclosure Sub-bezel Display module Display coverWiring the Transmitter to the Sensor Chapter3.1Overview 3.2Cable types3.2.14-wirecable 3.2.29-wirecable3.3Wiring for 4-wireremote installations Figure 3-3 Wiring to the mating connector Wiring the Transmitter to the SensorMating connector transmitter Mating connector3.4Wiring for 9-wireremote installations If using jacketed cable Figure 3-5 Cable glands Figure 3-7 Wrapping the shield drain wires Installation ManualFigure 3-8 Applying the heat shrink Figure 3-9 Folding the cloth shieldFigure 3-10 Gland body and core processor housing Core processor housing internal ground screwa.Identify the components shown in Figure If using jacketed cable Output Wiring - Model 1700/2700 Analog Transmitters4.3Output wiring ChapterFigure 4-1 Basic analog wiring + - mA output loop 820 Ω maximum loop resistanceFrequency receiving device Output voltage level is +24 VDC ± 3%Figure 4-2 HART/analog single-loopwiring Figure 4-3 RS-485 point-to-pointwiringBefore You Begin Installing the Transmitter Sensor Wiring24 VDC loop power HART-compatiblehost or controllerHART-compatible transmittersOutput Wiring - Model 1700/2700 Intrinsically Safe TransmittersChapter 5.1Overview5.3Safe area output wiring 5.3.1Safe area mA output wiringFigure 5-1 Safe area basic mA output wiring Output Wiring - Intrinsically Safe SpecificationsRmax = Vsupply - 12/0.023 5.3.2Safe area frequency/discrete output wiring SMART FAMILYHART 4-20mA HART-compatible5.4Hazardous area output wiring 5.4.1Hazardous area safety parametersTable 5-2 Safety parameters Hazardous area voltageHazardous area current Hazardous area capacitance5.4.2Hazardous area mA output wiring Figure 5-7 Hazardous area mA output wiringHazardous area Safe areaHazardous area Safe areaOutput Wiring - Model 2700 Configurable I/O Transmitters6.2Channel configuration ChapterTable 6-1 Channel configuration 6.3mA output wiringConfiguration options PowerFigure 6-2 Basic mA wiring Figure 6-3 HART/analog single-loopwiringOutput Wiring - Intrinsically Safe Output Wiring - Configurable I/O6.4Frequency output wiring Channel B, internal power - FigureChannel B, external power - Figure Channel C, internal power - FigureOutput Wiring - Intrinsically Safe SpecificationsExcessive current will damage the transmitter Counter Output voltage level is +15 VDC ± 3% + Pull-upresistor+ 3-30VDC Counter6.5Discrete output wiring Pull-upresistor or DC relay Volts 6.6Discrete input wiring Table 6-2 Input voltage ranges for external powerRange + Switch Installation ManualPLC or other deviceMicro Motion Model 1700 and 2700 Transmitters 7.2FOUNDATION fieldbus wiring Chapter7.1Overview Note Terminals 3 through 6 are not used7.3PROFIBUS-PAwiring Note Terminals 3 through 6 are not usedSpecifications Appendix AA.1 Functional specifications Power connectionA.1.2 Input/output signals Input signal from sensorCore processor connection FISCO and FNICO approval2700 transmitters Not intrinsically safe 2700 transmitters Intrinsically safe Discrete output Model 2700 only One or two frequency/pulse outputs Service port A.1.3 Digital communicationHART/Bell202 FOUNDATION fieldbus or PROFIBUS-PAtransmittersA.1.4 Power supply AC power requirementsDC power requirements Ambient temperature limitsA.2 Hazardous area classifications A.2.1 UL and CSATransmitter OutputsA.3 Performance specifications A.4 Physical specificationsA.4.1 Housing A.4.2 MountingA.4.4 Weight A.4.5 DimensionsA.4.3 Interface/display Specifications Dimensions in inchesmmMicro Motion Model 1700 and 2700 Transmitters 6 13/16Specifications Output Wiring - Intrinsically SafeSpecifications Installation ManualSpecifications Dimensions in inchesmmMicro Motion Model 1700 and 2700 Transmitters 6 13/16Specifications Output Wiring - Intrinsically SafeSpecifications Installation ManualFigure A-5 Dimensions - Remote core processor Specificationsinches Dimensions in mm Micro Motion Model 1700 and 2700 TransmittersIndex Page UL installation requirements 7 specifications Weight 65 Wiring instructions 4-wireremote9-wireremote See Output wiring transmitter to sensorMicro Motion Model 1700 and 2700 Transmitters Page 20001700 Micro Motion Inc. USAWorldwide Headquarters Micro Motion Europe