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Emerson Rosemount 3100 Series Reference Manual

Emerson Rosemount 3100 Series
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iii
Reference Manual
00809-0100-4840, Rev CB
Contents
February 2015
Contents
Contents
1Section 1: Introduction
1.1 Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Manual overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.3 Service support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.4 Product recycling/disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2Section 2: Transmitter Overview
2.1 The Rosemount 3101, 3102, and 3105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1.1 Theory of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.2 Components of the transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 System architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3Section 3: Installation
3.1 Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Considerations before installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2.1 Safety considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.2.2 Environmental considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.3 Mechanical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3.1 Mounting considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3.2 Consider liquid surface conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3.3 Consider in-tank effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3.4 Mounting the transmitter above the liquid surface . . . . . . . . . . . . . . . . . 12
3.3.5 Open channel flow installations (the 3102/3105) . . . . . . . . . . . . . . . . . . 14
3.4 Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.4.1 Connecting the cable(s) to the transmitter. . . . . . . . . . . . . . . . . . . . . . . . 16
3.4.2 Connecting the cable wires to the Rosemount 3101 . . . . . . . . . . . . . . . 17
3.4.3 Connecting the cable wires to the Rosemount 3102 . . . . . . . . . . . . . . . 18
3.4.4 Connecting the cable wires to the Rosemount 3105 . . . . . . . . . . . . . . . 19
3.4.5 Remote temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.4.6 Wiring to allow HART communications . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.4.7 Lightning / surge protection and other loop devices. . . . . . . . . . . . . . . . 21

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Emerson Rosemount 3100 Series Specifications

General IconGeneral
BrandEmerson
ModelRosemount 3100 Series
CategoryTransmitter
LanguageEnglish

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