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Converting a Threaded NPT Connection to a

Flange Connection

Supplement to Fisher

L2, L2e, and L2sj Level Controller

Instruction Manuals

This supplement contains information for converting L2, L2e, and L2sj level controller threaded NPT connections to

flange type connections.

Refer to the Maintenance section of the appropriate instruction manual for instructions on removing the sensor from

the controller, and disassembly of the sensor connector.

See figures 1, 2, and 3 for conversion and weld end details.

Note

Modification of the L2, L2e, or L2sj sensor to a flanged connection limits the pressure rating to the flange rating.

Refer to tables 1 and 3.

Ensure flanges are marked with the appropriate pressure rating.

Flange Orientation

Orient the controller so that the case is level. See figure 4 for the proper sensor orientation for flange welding.

WARNING

To maintain code/standard compliance, weld fabrication must meet the requirements of ASME Section IX. Failures to meet

these requirement could result in personal injury and/or property damage.

WARNING

To maintain compliance with NACE MR0175, weld fabrication must meet the requirements of NACE MR0175, paragraph 5.3.

Failure to meet these requirements could result in personal injury and/or property damage.

Instruction Manual Supplement

D103277X012

L2, L2e, and L2sj Controller

April 2013

1 2 3 4 5 6 7 8 9 10

Résumé du contenu

Page 1 - Flange Connection

www.Fisher.comConverting a Threaded NPT Connection to aFlange ConnectionSupplement to Fisherr L2, L2e, and L2sj Level ControllerInstruction ManualsThi

Page 2

Instruction Manual SupplementD103277X012L2, L2e, and L2sj ControllerApril 201310Emerson Process Management Marshalltown, Iowa 50158 USASorocaba, 18087

Page 3

Instruction Manual SupplementD103277X012L2, L2e, and L2sj ControllerApril 20132Figure 1. Typical Sensor Connection10C2006-ACUT HERE TO REMOVE THREADPR

Page 4 - Related Documents

Instruction Manual SupplementD103277X012L2, L2e, L2sj ControllerApril 20133Figure 3. Sensor Connections (Inches)NOTE:SEE FIGURE 1 FOR A TYPICAL SENSOR

Page 5

Instruction Manual SupplementD103277X012L2, L2e, and L2sj ControllerApril 20134Installation1. Install a suitable flange gasket.2. Insert the displac

Page 6

Instruction Manual SupplementD103277X012L2, L2e, L2sj ControllerApril 20135 Figure 5. Fisher L2 Liquid Level Controller, NPS 2X2 Flange Dimensions (al

Page 7

Instruction Manual SupplementD103277X012L2, L2e, and L2sj ControllerApril 20136Figure 6. Fisher L2 Liquid Level Controller, NPS 2X4 Flange Dimensions

Page 8

Instruction Manual SupplementD103277X012L2, L2e, L2sj ControllerApril 20137 Figure 7. Fisher L2e Electric Level Controller, NPS 2X2 Flange Dimensions

Page 9

Instruction Manual SupplementD103277X012L2, L2e, and L2sj ControllerApril 20138Figure 8. Fisher L2e Electric Level Controller, NPS 2X4 Flange Dimensio

Page 10 - Instruction Manual Supplement

Instruction Manual SupplementD103277X012L2, L2e, L2sj ControllerApril 20139Figure 9. Fisher L2sj Liquid Level Controller, NPS 2X4 Flange Dimensions (a