Emerson 8712E manual Installation, Flanged Sensors, Gaskets, Flange Bolts

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Quick Installation Guide

00825-0100-4664, Rev BB January 2013

Rosemount 8712 / 8700 Series

STEP 4: INSTALLATION

Flanged Sensors

Gaskets

The sensor requires a gasket at each of its connections to adjacent devices or piping. The gasket material selected must be compatible with the process fluid and operating conditions. Metallic or spiral-wound gaskets can damage the liner. Gaskets are required on each side of a grounding ring. All other applications (including sensors with lining protectors or a grounding electrode) require only one gasket on each end connection.

Figure 6. Flanged gasket placement

Flange Bolts

NOTE

Do not bolt one side at a time. Tighten each side simultaneously. Example:

1.Snug left

2.Snug right

3.Tighten left

4.Tighten right

Do not snug and tighten the upstream side and then snug and tighten the downstream side. Failure to alternate between the upstream and downstream flanges when tightening bolts may result in liner damage.

Suggested torque values by sensor line size and liner type are listed in Table 1 for ASME B16.5 (ANSI) and Table 2 for DIN flanges. Consult the factory if the flange rating of the sensor is not listed. Tighten flange bolts on the upstream side of the sensor in the incremental sequence shown in Figure 7, to 20% of the suggested torque values. Repeat the process on the downstream side of the sensor. For sensors with more or less flange bolts, tighten the bolts in a similar crosswise sequence. Repeat this entire tightening sequence at 40%, 60%, 80%, and 100% of the suggested torque values or until the leak between the process and sensor flanges stop.

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Contents Quick Installation Guide Private Limited Management Asia PacificMechanical Considerations PRE-INSTALLATION109 Dimensions are in inches millimeters12.02 305Identify Options and Configurations Installation ProceduresHardware Jumpers/Switches Environmental ConsiderationsElectrical Considerations HandlingUpstream/Downstream Piping MountingFlow Direction Sensor OrientationFlow Flanged Sensors InstallationGaskets Flange BoltsSize Class CodePound-feet PTFE/ETFE liner PN10 Size NewtonNewton Code Meter Polyurethane, Linatex, Adiprene and Neoprene Liners Size Wafer Sensors AlignmentNominal Sensor Size Rosemount Alignment Spacer Table Line Size Dash No Sanitary Sensors Alignment and BoltingPound-feet Newton-meter Process Grounding Options Type of Pipe GroundingLining StrapsGrounding with Grounding Electrode Power Outputs WiringCoil Drive and Electrode Cables Power Outputs Conduit Ports and ConnectionsRemote Mount Cable Requirements and Preparation Transmitter to Sensor WiringTransmitter Terminal Sensor Terminal Wire Gauge Wire Color Wiring the Transmitter to the SensorDescription Part NumberRemote Mount Wiring Diagrams Internal Power Source Connect the 4-20 mA Analog SignalExternal Power Source Cabling considerationsSupply Wire Requirements Powering the TransmitterInstallation Category Disconnects8712E Power Supply AC Ground or DC Ground Transmitter Power CableFuse Basic Setup Local Operator Interface Basic SetupFunction Fast Keys Process Variables PV ReviewApproved Manufacturing Locations Product CertificationsEuropean Directive Information International CertificatesSpecial Conditions for Safe Use European Certifications N1 Atex Type nInternational Certifications N7 IECEx Type nSensor Approval Information Meter Size Inches Maximum Ambient Temperature Rosemount 8705 and 8711 SensorsMaximum Process EC Declaration of Conformity Schedule
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