Emerson FB1200 Handbuch für den Austausch von Feldgeräten - Seite 6

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FB1100/FB1200 Flow Computer End Cap Field Replacement Guide

D301814X012

November 2020

Replacing the End Caps

UL Listed End Cap Field Installed Accessory Kit for Use in Class I, Division 1, Groups C, and D; and

Class I, Division 2, Groups A, B, C, and D



WARNING

EXPLOSION HAZARD –When replacing end caps, inspect the housing threads for damage. If

housing threads are damaged such that you cannot properly seal the end caps, you cannot

operate the flow computer in a hazardous area. You must return the flow computer to Emerson

for repair or replacement.

Front End Cap (unscrewed)

Flow Computer End Cap with Window Field Installed Accessory Kit Part No. 399122-01-0 and

Flow Computer End Cap without Window Pack Field Installed Accessory Kit Part No.

399123016-KIT for Use with UL Listed Class I, Division 1, Groups C, and D; and Class I,

Division 2, Groups A, B, C, and D Model Series FB1100 and FB1200.

Grasp the end cap (front or rear).

When replacing the end cap, carefully align the end cap threads with the threads of the

enclosure and replace the front end cap.

Important

When replacing the rear end cap, ensure wires connecting to the terminal plate do not get

crimped or caught between the end cap threads and the enclosure.

Screw the end cap clockwise (eight full turns) until it is tightly sealed to the enclosure. End

caps must have at least 8 full threads engaged upon reassembly.

Note

If you need more leverage, place a long screwdriver or other appropriate tool across the two

notches in the end cap to act as a pry bar.

If applicable, tighten the retaining clamp using the screw and washer onto the end cap using

a 3mm hexagonal wrench. When tightening, torque to 10 to 12 in-lbs (1.1 to 1.4 N-m).

Rear End Cap (unscrewed)