Manuals / Emerson / Home Audio / Satellite Radio

Emerson IFT9701 4Typical HART network wiring, Note For optimum HART communication, make

Models: IFT9701

1 90

Download 90 pages 24.24 Kb

Page 31

Figure 4-4 Typical HART network wiring

Power Supply and Output Wiring continued

4.4.2Milliamp output connected to Bell 202 multidrop network

Devices in a Bell 202 multidrop network communicate by sending and receiving signals to and from one another. HART protocol supports up to 15 transmitters in a Bell 202 multidrop network.

Other Rosemount SMART FAMILY transmitters can also participate in a HART-compatible network.

•A Bell 202 multidrop network uses twisted-pair wire, and allows only digital communication.

•A HART Communicator or other HART-compatible control system can communicate with any device in the network over the same 2-wire pair.

Using multiple transmitters in a HART-compatible network requires assigning a unique address other than 0 to each transmitter. Assigning an address other than 0 to the transmitter causes the primary mA output to remain at a constant 4 mA level.

Figure 4-4 shows how to connect wiring for a HART-compatible network.

•The maximum number depends upon the type of transmitters, the method of installation, and other external factors.

•The primary mA output must produce a 4–20 mA current for the Bell 202 physical layer. The Bell 202 layer will work when the primary mA output is at or above 2 mA output.

•SMART FAMILY devices require a minimum loop resistance of 250 ohms. Loop resistance must not exceed 600 ohms.

Connect the mA outputs from each transmitter together so they terminate at a common load resistor, with at least 250 ohms impedance, installed in series.

Figure 4-4 Typical HART network wiring

Before You Begin

Getting Started

HART comm

tool

250ohm load

RFT9739

field-mount

PV+	PV−
17	18

RFT9739

rack-mount

	PV+		PV−
	CN2−		CN2−
	Z30		D30

SMART	SMART
FAMILY	FAMILY
device	device

DC source required for other HART 4–20mA passive transmitters

24

DC

Mounting the Remote Transmitter

4–20 mA

IFT9701

Note: For optimum HART communication, make

4–20 mA sure the output loop is single-point-grounded to an instrument grade ground.

IFT9701

Power Supply and Output Wiring

Model IFT9701 Transmitter Instruction Manual

23

Image 31

Emerson IFT9701 instruction manual 4Typical HART network wiring, Note For optimum HART communication, make

Contents

P/N 3100572, Rev. E March Micro MotionModel IFT9701 Transmitter with Optional Display Micro MotionTMPage Model IFT9701 Transmitter with Optional Display Micro MotionPage Contents Contents continued Chapter 8 TroubleshootingChapter 6 Configuration with a HART Communicator Chapter 7 Configuration with ProLink II SoftwarePage Page 1.1About this manual ChapterBefore You Begin 1.2SafetyBefore You Begin continued 1.3European installations1.4Definitions 1.5Flowmeter componentsFigure 1-2Remotely mounted IFT9701 transmitter Field wiringSensor wiring Power Supply and Output WiringPage 2.1.1Hazardous area Getting Started2.1Safety, reliability, accessibility ChapterFigure 2-1Location of approvals tag 2.1.3Temperature, humidity, and vibration2.1.2Orientation and mounting Explosion hazard Power Supply and Output Wiring2.1.4Visibility of tags 2.2Transmitters approved for ATEX ZoneFigure 2-2Compartment tags and lockout device 2.3Jumper settingsOptional settings 2.3.2Fault output levelsFigure 2-3Jumper location and settings Default settings1.Screw the cover back onto the housing 3.2Choosing the proper location Remotely Mounting the TransmitterChapter 3.1OverviewRemotely Mounting the Transmitter continued Circuit board compartment 3.4.1Cable types 3.4Connecting the transmitter to the sensorFigure 3-4Jacketed cable Installation requirements Table 3-1Temperature ranges for jacket materialLow operating temperature limit High operating temperature limit3.4.3Guidelines for cable gland 3.4.4Wiring connections to sensorInstall drip legs in cable or conduit 3.4.2Guidelines for conduitTable 3-3Sensor terminal designations Wire colorPower Supply and Output Wiring Figure 3-7Cable connections to sensorsRemotely Mounting the Transmitter continued Sensor wiring terminals Sensor wiring compartment4.1Overview Power Supply and Output Wiring4.2Wiring guidelines ChapterFigure 4-1Power supply wiring terminals 4.3Connect power supply wiringPower Supply and Output Wiring continued Power Supply and Output Wiring continued Table 4-1Wire guidelines for DC power supply4.4Connect output wiring Figure 4-2Output wiring terminalsFigure 4-3Milliamp output performance 4.4.1Milliamp outputNote For optimum HART communication, make Figure 4-4Typical HART network wiringFigure 4-5HART Communicator connections 4.4.4Pulse output Pulse counter with pull-upto internal power Input 2Do not connect shields at this end Page Chapter Flowmeter Startup5.2Customer service 5.3Startup procedures5.4.3Startup mode 5.4.1Diagnostic LED5.4Initialization 5.4.2Optional displayFigure 5-1Location of LED, zero button, and LCD 5.5.1Zeroing procedure5.5Flowmeter zeroing 5.5.2Diagnosing zero failure Flowmeter Startup continued Configuration with CommunicatorConfiguration with ProLink Troubleshooting 5.7Process measurementPage 6.1Configuration overview Configuration with a HART CommunicatorChapter 6.2.1HART tag 6.2Configuration parameters6.2.2Measurement units a. Whenever the display below appears, press F4 OK 6.2.4Damping 6.2.3Flow cutoff6.2.5 Flow direction 6.2.7Pulse output scaling 6.2.6Range values for milliamp output6.3.1Auto zero 6.3Calibration proceduresDiagnosing zeroing failure 6.3.2Flow calibration procedureTo calculate the flow calibration factor 6.4Characterization 7.1Configuration overview Configuration with ProLink II SoftwareChapter Figure 7-1Configuration window - Device panel 7.2Configuration parameters7.2.1HART tag 7.2.2Process variable measurement Figure 7-2Configuration window - Flow panelThe pulse output goes to 0 Hz Page 7.2.3Output configuration 7.3Calibration procedures Figure 7-4Configuration window - Frequency panel7.3.1Auto zero To perform the auto zero procedure Figure 7-5Flow Calibration dialog box 7.3.2Flow calibration procedureDiagnosing zeroing failure Figure 7-6Totalizer Control window 7.4Characterization Configuration with ProLink II Software continued Figure 7-7Configuration window - Density panel8.3.1Diagnostic LED Troubleshooting8.1Customer service 8.3Transmitter diagnostic toolsTable 8-1Normal conditions indicated by LED 8.3.3Fault outputsTroubleshooting continued 8.3.2Optional LCDTable 8-2Conditions indicated by optional LCD 8.4Power supply8.5Wiring Figure 8-2Power supply connections8.6Over range and sensor failure conditions Table 8-3Sensor terminal designations8.7Slug flow 8.8Transmitter failure 8.9Digital diagnostic messagesPage A.2 Functional specifications IFT9701 SpecificationsAppendix A A.1 Performance specificationsA.2.2 Local display optional A.2.6 Fault indicationA.2.7 Output testing Current source A.2.8 Power supply options 85 to 250 VACSee Process fluid vs. ambient temperature, below A.3 Environmental limits A.3.1 TemperatureSee Process fluid vs. ambient temperature, below A.3.2 Process fluid temperature limitsA.3.4 Vibration limits IFT9701 Specifications continuedA.3.3 Humidity limits 5 to 95% non-condensingA.8 Hazardous area classifications A.6 Ambient temperature effect on milliamp outputA.7 Shipping weight A.5 Environmental effectsPage HART Menu Trees Appendix BHART Communicator Menu Trees SpecificationsOnline Menu HART Communicator Menu Trees continuedSee previous page Appendix C Installing the Optional DisplayBack of Retaining clip display Installing the Optional Display continuedD.2 New and unused equipment Appendix DReturn Policy D.1 General guidelinesPage Index Page Page Page Page Worldwide Headquarters 3100572Micro MotionTM Micro Motion Inc. USA