Emerson 4500 manual Grounding, Installing the LCD Meter

Page 16

Rosemount 4500

Reference Manual

00809-0100-4027, Rev AA December 2005

Grounding

Transmitter Case

INSTALLING THE LCD METER

Figure 2-6. Optional LCD Display

Always ground the transmitter case in accordance with national and local electrical codes. The most effective transmitter case grounding method is a direct connection to earth ground with minimal impedance. Methods for grounding the transmitter case include:

Internal Ground Connection: The Internal Ground Connection screw

is inside the electronics housing. The screw is identified by a ground symbol ( ), and is standard on all 4500 transmitters.

Transmitters ordered with the LCD display will be shipped with the display installed. Installing the display on an existing 4500 transmitter requires a small instrument screwdriver and the display kit.

The optional LCD display can be rotated in 90-degree increments.

Use the following procedure to install the LCD display:

1.IF the transmitter is installed in a loop, THEN secure the loop and disconnect power.

2.Remove the transmitter cover.

3.Engage the four-pin connector from the LCD display into the four-pin receptacle. Tighten screws to secure the LCD.

Note the following LCD temperature limits:

Ambient

32 to 140 °F (0 to 60 °C)

Storage

–22 to 185 °F (–30 to 85 °C)

4500/4500_29_AA.EPS

2-8

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Contents Reference Manual Page Rosemount 4500 Hygienic Pressure Transmitter Page Table of Contents Operation Maintenance SectionUsing this Manual Section IntroductionService Support Section Installation Overview Safety MessagesGeneral ConsiderationsEnvironmental Hart Installation Flowchart Installation Procedures Mount the TransmitterSet Switches LCD Switches LOI SwitchesConfigure Alarm Direction AMSConnect Wiring and Power Up Hart Terminal BlocksInstalling the LCD Meter GroundingSection Configuration Setting the Loop to Manual Commissioning on the Bench with HartWiring Diagrams Hart Communicator Menu TreeFast Key Sequence Function Hart Fast Key SequenceReview Configuration Data Check Output Sensor TemperatureProcess Variables Set Process Variable Units Basic SetupRerange Fast Keys 3, 1 Damping LCD DisplayDetailed Setup Failure Mode Alarm and SaturationAlarm and Saturation Level Configuration Alarm and Saturation Levels for Burst Mode Alarm and Saturation Values for Multidrop ModeAlarm Level Verification Process Alerts Scaled Variable Configuration Rosemount Re-mapping Diagnostics Service Sensor Temperature UnitTransmitter Test Loop Test Saving, Recalling, Cloning Configuration Data Advanced Functions for Hart ProtocolRosemount Burst Mode Multidrop Communication Communicating with a Multidropped Transmitter Changing a Transmitter AddressPolling a Multidropped Transmitter Operation and Maintenance Overview Calibration for Hart ProtocolCalibration Overview Transmitter Data Flow with Calibration Options Calculate total probable error TPE Determining Calibration FrequencyChoosing a Trim Procedure Sensor Trim Zero Trim Full TrimRecall Factory Trim Recall Factory Trim- Sensor Trim Recall Factory Trim- Analog Output Analog Output Trim Digital-to-Analog TrimDigital-to-Analog Trim Using Other Scale Diagnostic Messages Fail ModuleNonpv Limit Stuck KEY Troubleshooting Symptom Corrective Actions Performance Specifications SpecificationsAppendix a Reference Data Functional Specifications 00809-0100-4027, Rev AA December Range and Sensor LimitsRosemount Physical Specifications Dimensional Drawings 11/2 inch Tri-Clamp ModuleInch Tri-Clamp Module Fractional Line Fitting Module Ordering Information Code Process Connection StyleAppendix B Product Certificates Hazardous Locations Certifications North American CertificationsRosemount Rosemount Index Index-2 Page ¢00809-0100-4027 ¤