Instruction Manual

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A2-1

IM 01R04B04-00E-E 8th edition March 01, 2011 -00

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The contents of this appendix are cited from exida.com safety manual on the Rotamass 3 series Coriolis Mass

Flow and Density meter specically observed for the safety transmitter purpose. When using the Rotamass 3

for Safety Instrumented Systems (SIS) application, the instructions and procedures in this section must be

strictly followed in order to preserve the transmitter for that safety level.

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This document provides an overview of the user responsibilities for installation and operation of the

Yokogawa ROTAMASS 3 Series Coriolis Mass Flow and Density Meter in order to maintain the designed

safety level. Items that will be addressed are proof testing, repair and replacement of the owmeter, reliability

data, lifetime, environmental and application limits, and parameter settings.

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This owmeter is intended for use as a mass ow, uid density and uid temperature measurement

component in a Safety Instrumented System. It has two 4-20 mA analog outputs, two passive pulse outputs/

status outputs and one status input. The owmeter may be used with the two 4 – 20 mA outputs to feed

signals to a logic solver that is part of the safety instrumented function (SIF) as shown in Figure A2-1. The

fault annunciation mechanism is an out of range analog current. In order to take credit for the automatic

diagnostics in the owmeter, this annunciation mechanism must be connected.



WARNING