Maintenance Troubleshooting, Overview

00809-0100-4514, Rev BA January 2008

Section 5 Maintenance and

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-1

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-2

Test Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-2

Board Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-2

Sensing Module Checkout . . . . . . . . . . . . . . . . . . . . . . . . . page 5-3

Disassembly Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-4

Reassembly Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-6

Post Assembly Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-9




	Use only the procedures and new parts specifically referenced in this manual to
	ensure specification performance and certification compliance. Unauthorized
	procedures or parts can render the instrument dangerous to life, limb, or property.

OVERVIEW	This section outlines a technique for checking out the components, a method
	for disassembly and reassembly, and a troubleshooting guide.

	NOTE
	Maintenance of traceability of any replacement parts is the responsibility of
	the user (see “Important Notice” on page 6-11and Important Notice at the
	beginning of this manual preceding the Table of Contents).

	The Rosemount 1154 has no moving parts and requires a minimum of
	scheduled maintenance. Calibration procedures for range adjustment are
	outlined in Section 3: Calibration. A calibration check should be conducted
	after inadvertent exposure to overpressure, unless your plant considers this
	factor separately in the plant error analysis.
	Test terminals are available for in-process checks. For further checks, the
	transmitter can be divided into three active physical components: the sensing
	module, the amplifier board, and the calibration board.
	An exploded view of the transmitter is provided in Figure 5-2 on page 5-5.In
	the following procedures, numbers in parentheses refer to item numbers in the
	exploded view.