Rosemount 3100 Operating Manual
Rosemount 3101, 3102, and 3105
Ultrasonic Liquid Level Transmitters
Reference Manual
00809-0100-4840, Rev CB
February 2015
Reference Manual
00809-0100-4840, Rev CB
Rosemount 3101, 3102, and 3105
Ultrasonic Liquid Level Transmitters
Title Page
February 2015
Read this manual before working with the product. For personal and system
safety, and for optimum product performance, make sure you thoroughly
understand the contents before installing, using, or maintaining this
product.
Within the United States, Rosemount Inc. has two toll-free assistance
numbers.
Customer Central: 1-800-999-9307(7:00 a.m. to 7:00 p.m. CST)
Technical support, quoting, and order-related questions.
North American Response Center:
Equipment service needs.
1-800-654-7768 (24 hours a day – Includes Canada)
For equipment service or support needs outside the United States, contact
your local Rosemount representative.
The products described in this document are NOT designed for
nuclear-qualified applications.
Using non-nuclear qualified products in applications that require
nuclear-qualified hardware or products may cause inaccurate readings.
For information on Rosemount nuclear-qualified products, contact your
local Rosemount Sales Representative.
This device complies with part 15 of the FCC rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
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Title Page
February 2015
Reference Manual
00809-0100-4840, Rev CB
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Reference Manual
00809-0100-4840, Rev CB
Contents
1Section 1: Introduction
2Section 2: Transmitter Overview
Contents
February 2015
1.1 Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Manual overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.3 Service support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.4 Product recycling/disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
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
Contents
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4Section 4: Starting up
4.1 Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.2 Programming the Rosemount 3101, 3102, and 3105 Transmitters. . . . . . . . . . 24
4.2.1 Integral display and buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.2.2 What happens when powering up the transmitter . . . . . . . . . . . . . . . . . 25
4.2.3 Considerations before starting the programming . . . . . . . . . . . . . . . . . . 25
4.3 Programming the 3101 using the integral display and buttons . . . . . . . . . . . . . 26
4.3.1 Display units (on the 3101) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.3.2 First measurements (on the 3101) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.3.3 Setting the bottom reference (on the 3101) . . . . . . . . . . . . . . . . . . . . . . 28
4.3.4 Setting 4 mA and 20 mA levels (on the 3101). . . . . . . . . . . . . . . . . . . . . . 28
4.3.5 Setting the output damping (on the 3101). . . . . . . . . . . . . . . . . . . . . . . . 30
4.3.6 Selecting the Lost Echo action (on the 3101) . . . . . . . . . . . . . . . . . . . . . . 31
4.3.7 Setting 4 mA and 20 mA levels using ranging (on the 3101) . . . . . . . . . 32
4.3.8 Learn about echoes from false targets (on the 3101) . . . . . . . . . . . . . . . 33
4.3.9 Do final checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.3.10 What happens when a power failure occurs . . . . . . . . . . . . . . . . . . . . . . . 34
4.4 Programming the 3102 and 3105 using the integral display and buttons . . . . 35
4.4.1 Overview of programming the 3102 or the 3105 . . . . . . . . . . . . . . . . . . 35
4.4.2 Selecting the duty (on the 3102/3105) . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.4.3 Selecting the units of measurement (on the 3102/3105) . . . . . . . . . . . 36
4.4.4 Setting the correct bottom reference (on the 3102/3105) . . . . . . . . . . 38
4.4.5 Selecting a profile (on the 3102/3105) . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.4.6 Power factor for the flow law (on the 3102/3105). . . . . . . . . . . . . . . . . . 43
4.4.7 Setting the scaling factor (on the 3102/3105) . . . . . . . . . . . . . . . . . . . . . 44
4.4.8 Maximum level entry (on the 3102/3105). . . . . . . . . . . . . . . . . . . . . . . . . 45
4.4.9 Maximum flow entry (on the 3102/3105) . . . . . . . . . . . . . . . . . . . . . . . . . 46
4.4.10 Maximum contents (volume) entry (on the 3102/3105) . . . . . . . . . . . . 47
4.4.11 Setting the 4 mA point (on the 3102/3105) . . . . . . . . . . . . . . . . . . . . . . . 48
4.4.12 Setting the 20 mA point (on the 3102/3105) . . . . . . . . . . . . . . . . . . . . . . 49
4.4.13 Setting the output damping (on the 3102/3105) . . . . . . . . . . . . . . . . . . 50
4.4.14 Selecting the Lost Echo action (on the 3102/3105). . . . . . . . . . . . . . . . . 51
4.4.15 Setting the relay on and off points (on the 3102). . . . . . . . . . . . . . . . . . . 52
4.4.16 Setting the 4 and 20 mA levels using ranging (on the 3102/3105) . . . 54
4.4.17 Do final checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4.4.18 What happens when a power failure occurs . . . . . . . . . . . . . . . . . . . . . . . 55
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5Section 5: Service and Troubleshooting
Contents
February 2015
5.1 Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
5.2 Servicing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.3 Diagnostics for the 3101. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.3.1 General troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.3.2 Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.4 Diagnostics for the 3102 and the 3105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
5.4.1 General troubleshooting (on the 3102/3105) . . . . . . . . . . . . . . . . . . . . . 59
5.4.2 Fault and alarms (on the 3102/3105). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
5.4.3 Diagnostic data (on the 3102/3105) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.4.4 Loop test (on the 3102/3105) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
5.5 Engineering menu for the 3102 and 3105. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5.5.1 Accessing the engineering menu (on the 3102/3105) . . . . . . . . . . . . . . 62
5.5.2 Setting the threshold (on the 3102/3105) . . . . . . . . . . . . . . . . . . . . . . . . 63
5.5.3 Setting lost echo time (on the 3102/3105). . . . . . . . . . . . . . . . . . . . . . . . 64
5.5.4 Setting the dead band (on the 3102/3105) . . . . . . . . . . . . . . . . . . . . . . . 65
5.5.5 Setting the frequency (on the 3102/3105) . . . . . . . . . . . . . . . . . . . . . . . . 66
5.5.6 Setting the pulse repetition frequency (on the 3102/3105) . . . . . . . . . 67
5.5.7 Setting valid echo count (on the 3102/3105). . . . . . . . . . . . . . . . . . . . . . 68
5.5.8 Setting spike rejection (on the 3102/3105) . . . . . . . . . . . . . . . . . . . . . . . 69
5.5.9 Learn about echoes from false targets (on the 3102/3105). . . . . . . . . . 69
5.5.10 Setting the ambient temperature (on the 3102/3105) . . . . . . . . . . . . . 71
5.5.11 Temperature calibration (on the 3102/3105). . . . . . . . . . . . . . . . . . . . . . 72
5.5.12 Loading factory default values (on the 3102/3105) . . . . . . . . . . . . . . . . 73
5.5.13 Changing the base units (on the 3102/3105). . . . . . . . . . . . . . . . . . . . . . 74
5.6 False echoes under certain ambient operating conditions
(on the 3102/3105) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
AAppendix A: Reference Data
A.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
A.1.1 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
A.1.2 Measuring performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
A.1.3 Display and configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
A.1.4 Electrical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Contents
A.1.5 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
A.1.6 Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
A.1.7 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
A.1.8 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
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A.1.9 Temperature and pressure ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
A.1.10 Load limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
A.2 Dimension drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
A.3 Ordering information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
A.3.1 Rosemount 3101 ordering information. . . . . . . . . . . . . . . . . . . . . . . . . . . 87
A.3.2 Rosemount 3102 ordering information. . . . . . . . . . . . . . . . . . . . . . . . . . . 88
A.3.3 The Rosemount 3105 level transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
A.4 Spare parts and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
A.4.1 Spare parts and accessories for the 3101/3102/3105. . . . . . . . . . . . . . . 90
BAppendix B: Product Certifications
B.1 Manufacturing location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
B.2 European Union directive information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
B.3 Non-hazardous location certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
B.3.1 American and Canadian certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
B.4 Hazardous locations certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
B.4.1 American and Canadian certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
B.4.2 European certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
B.4.3 International certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
B.5 Approval drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
CAppendix C: Integrated Display Menus
C.1 Menus on the 3101 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
C.2 Menus on the 3102 and the 3105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
DAppendix D: Rosemount 3490 Series Menus
D.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
D.2 Menus and parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
EAppendix E: Field Communicator Menus
E.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
E.2 Menus and parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
FAppendix F: Programming the 3102 and 3105 using HART
F. 1 Overview of programming the 3102 and 3105 . . . . . . . . . . . . . . . . . . . . . . . . . . 117
F. 1. 1 Using a Rosemount 3490 Series Control Unit. . . . . . . . . . . . . . . . . . . . . 117
F. 1. 2 Using a Field Communicator or AMS Device Manager . . . . . . . . . . . . . 117
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F. 2 Command parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
F. 2. 1 Base units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
F. 2. 2 Set as empty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
F. 2. 3 Present depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
F. 2. 4 Learn false echo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
F. 2. 5 Auto tank map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
F. 2. 6 Simulation of PV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
F. 2. 7 Restart device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
F. 2. 8 Load defaults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
F. 2. 9 Simulate current output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
F.2.10 Trim 4 mA / trim 20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
F. 3 Configuration parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
F. 3. 1 Message (P000) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
F. 3. 2 Tag (P001) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
F. 3. 3 Descriptor (P002). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
F. 3. 4 Final assembly number (P004). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
F. 3. 5 Serial number (P005). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
F. 3. 6 Bottom reference (P010) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
F. 3. 7 Upper blanking (P023) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
F. 3. 8 Lower blanking (P063) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
F. 3. 9 Distance offset (P060). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
F.3.10 Level offset (P069) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
F.3.11 Tank shape / non-linear profile (P011) . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
F.3.12 Contents (volume) measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
F.3.13 Flow measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
F.3.14 Primary variable units (P012) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
F.3.15 Scale factor / k-factor (P013) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
F.3.16 Profile height / power factor (P014) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
F.3.17 Profile points 1 to 10 (P030 to P039) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
F.3.18 Upper range value (P015). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
F.3.19 Lower range value (P016) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
F.3.20 Damping (P020) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
F.3.21 Relay 1 mode (P070) on the Rosemount 3102. . . . . . . . . . . . . . . . . . . . 163
F.3.22 RL1 PV on point (P071) on the Rosemount 3102 . . . . . . . . . . . . . . . . . . 165
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F.3.23 RL1 PV off point (P072) on the Rosemount 3102. . . . . . . . . . . . . . . . . . 166
F.3.24 Relay 2 mode (P073) on the Rosemount 3102. . . . . . . . . . . . . . . . . . . . 167
F.3.25 RL2 PV on point (P074) on the Rosemount 3102 . . . . . . . . . . . . . . . . . . 168
F.3.26 RL2 PV off point (P075) on the Rosemount 3102. . . . . . . . . . . . . . . . . . 169
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F.3.27 Lost echo delay (P021) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
F.3.28 Lost echo action (P022). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
F.3.29 Speed of sound (P024) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
F.3.30 Temperature (P025) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
F.3.31 Set threshold (P026) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
F.3.32 Transmit power control (P040) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
F.3.33 Pulse repeat (P041) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
F.3.34 Echoes needed (P042). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
F.3.35 Threshold 1 time (P043) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
F.3.36 Threshold 1 size (P048). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
F.3.37 Target pulses (P044) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
F.3.38 Target frequency (P045). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
F.3.39 Spike rejection (P049) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
F.3.40 False echo data (P081 to P088) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
F.3.41 Clear false echoes (P089) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
F.3.42 Transducer material (P970) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
F.3.43 Poll address (D951) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
F.3.44 Maximum temperature (P046) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
F.3.45 Minimum temperature (P047) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
F.3.46 Date (P003) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
F. 4 Monitoring and diagnostic parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
F. 4. 1 Process value / primary variable (PV) (D900) . . . . . . . . . . . . . . . . . . . . . 193
F. 4. 2 Level / Secondary Variable (SV) (D901) . . . . . . . . . . . . . . . . . . . . . . . . . . 194
F. 4. 3 Distance / tertiary variable (TV) (D902) . . . . . . . . . . . . . . . . . . . . . . . . . . 195
F. 4. 4 Temperature / fourth variable (FV) (D903) . . . . . . . . . . . . . . . . . . . . . . . 196
F. 4. 5 % of current output (D905) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
F. 4. 6 Current output (D906) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
F. 4. 7 Distance (D910) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
F. 4. 8 Echo size (D911). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
F. 4. 9 Echo success (D912) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
F.4.10 Target echoes (D913) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
F.4.11 Speed of sound (D914) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
F.4.12 Temperature for SoS calculation (D915) . . . . . . . . . . . . . . . . . . . . . . . . . 204
F.4.13 Frequency (D916) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
viii
F.4.14 Threshold in use (D917) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
F.4.15 Pulses in use (D918). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
F.4.16 Transmit power (D919). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
F.4.17 Model code (D949) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
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February 2015
F.4.18 Hardware rev. (D952) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
F.4.19 Software revision (D953) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
F.4.20 Manufacturer (D960). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
F.4.21 Unique device ID (D961). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
F.4.22 HART revision (D962) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
F.4.23 Transmitter specific command revision (D963). . . . . . . . . . . . . . . . . . . 215
F.4.24 Preambles (D964) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
F.4.25 Transmitter flags (D965). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
F.4.26 Primary variable trend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
F.4.27 Temperature Trend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
F.4.28 Distance and Echo Size Trend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
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00809-0100-4840, Rev CB
Section 1 Introduction
1.1 Safety messages
Procedures and instructions in this section may require special precautions to ensure the safety
of the personnel performing the operation. Information that raises potential safety issues is
indicated by a warning symbol ( ). Refer to the following safety messages before performing
an operation preceded by this symbol.
Failure to follow these installation guidelines could result in death or serious injury.
Make sure only qualified personnel perform the installation.
Use the equipment only as specified in this manual. Failure to do so may impair the
protection provided by the equipment.
Explosions could result in death or serious injury.
Verify that the operating environment of the transmitter is consistent with the
appropriate hazardous locations certifications.
Before connecting a HART
sure the instruments in the loop are installed in accordance with intrinsically safe or
non-incendive field wiring practices.
Electrical shock could cause death or serious injury.
Use extreme caution when making contact with the leads and terminals.
®
-based communicator in an explosive atmosphere, make
Section 1: Introduction
February 2015
Any substitution of non-recognized parts may jeopardize safety. Repair, e.g. substitution of
components etc., may also jeopardize safety and is under no circumstances allowed.
1.2 Manual overview
This manual provides installation, configuration and maintenance information for the
Rosemount 3101, 3102, and 3105 Ultrasonic Liquid Level Transmitters.
Section 2: Transmitter Overview
Section 3: Installation
Section 4: Starting up
Section 5: Service and Troubleshooting
Appendix A: Reference Data
Appendix B: Product Certifications
Introduction
1
Section 1: Introduction
February 2015
Appendix C: Integrated Display Menus
Appendix D: Rosemount 3490 Series Menus
Appendix E: Field Communicator Menus
Appendix F: Programming the 3102 and 3105 using HART
1.3 Service support
To expedite the return process outside of the United States, contact the nearest Emerson
Process Management representative.
Within the United States, call the Emerson Process Management Instrument and Valves
Response Center using the 1 800 654 7768 toll-free number. This center, available 24 hours a
day, will assist you with any needed information or materials.
The center will ask for product model and serial numbers, and will provide a Return Material
Authorization (RMA) number. The center will also ask for the process material to which the
product was last exposed.
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Individuals who handle products exposed to a hazardous substance can avoid injury if they
are informed of, and understand, the hazard. If the product being returned was exposed to
a hazardous substance as defined by OSHA, a copy of the required Material Safety Data
Sheet (MSDS) for each hazardous substance identified must be included with the returned
goods.
1.4 Product recycling/disposal
Recycling of equipment and packaging should be taken into consideration. The product and
packaging should be disposed of in accordance with local and national legislation.
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Section 2: Transmitter Overview
Section 2 Transmitter Overview
The Rosemount 3101, 3102, and 3105 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3
Components of the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4
System architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6
2.1 The Rosemount 3101, 3102, and 3105
The 3101, 3102, and 3105 are 4–20 mA loop-powered level transmitters designed for
continuous liquid level measurements in tanks or open channel flows.
The transmitters can be connected directly to a plant control system, or used with a Rosemount
3490 Series Control Unit for programmable control functionality. The Rosemount 3105 may be
mounted in a hazardous area if powered from a protected power supply.
February 2015
Figure 2-1. Typical Application using a Rosemount 3100 Series Transmitter
A. Rosemount 3100 Series Transmitter E. Pump
B. Rosemount 3490 Series Control Unit F. Transmitter Bottom Reference
C. 4–20 mA Signal G. 4–20 mA and HART Signal
D. Relay
Note
HART is available on the Rosemount 3102 and Rosemount 3105.
Transmitter Overview
3
Section 2: Transmitter Overview
February 2015
2.1.1 Theory of operation
The Rosemount 3101, 3102, and 3105 transmitters are designed to be mounted above a liquid
and use ultrasonic pulses to continuously measure the distance to the liquid surface.
The microprocessor-controlled electronics calculate the distance to the liquid level from the
time delay between the transmitting and receiving of the signals.
When programmed with the bottom reference of the application, usually the tank bottom
(Figure 2.2), the transmitter calculates the liquid depth (level) and outputs the level as a
4–20 mA signal (and a digital HART
The 3101 calculates the level only and then outputs the result as a 4–20 mA signal.
The 3102 and 3105 can calculate level, contents (volume), or open channel flow, and then
output the result as a 4–20 mA signal and a digital HART signal.
A LCD screen inside the enclosure displays the selected measurement. Programming is achieved
using integral buttons inside the enclosure (all models), or by remote communication using
HART (on the 3102 and the 3105 only).
®
signal on the 3102 and 3105).
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2.2 Components of the transmitter
The Rosemount 3101, 3102, and 3105 transmitters have a housing containing advanced
electronics for signal processing, and terminals for connecting the external power supply.
The electronics produces an ultrasonic signal from the transmitter face.
A comprehensive specification for the Rosemount 3101, 3102, and 3105 is in the section
“Specifications” on page 77.
4
Transm itter Over view
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Aluminum Housing
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00809-0100-4840, Rev CB
Figure 2-2. The 3101, 3102, and 3105 Components
Section 2: Transmitter Overview
February 2015
A. Electronics Housing
B. 2-in. Mounting Thread
C. Transmitter Face
1
/2–14 NPT Conduit Threads (1/2–14 NPT to M20 x 1.5 adaptors are available when ordering. See page 90)
D.
E. Housing Cover (opened by un-doing three screws)
F. M20 x 1.5 Conduit Threads (supplied with one IP66/67 nylon compression cable gland and one M20 plug)
Transmitter Overview
5
Section 2: Transmitter Overview
3490
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7
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9
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Model type:
B
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2.3 System architecture
The Rosemount 3101, 3102, and 3105 are two-wire 24 Vdc loop-powered transmitters and can
be connected to a direct current (dc) power source using two-core, shielded cable.
On The Rosemount 3101, the output is a 4–20 mA analog signal.
On The Rosemount 3102 and Rosemount 3105, the output can be a 4–20 mA analog signal and
a digital HART signal.
Note
It is possible to use the multi-drop function with the HART protocol (Figure 2-3). In this case,
communication is restricted to digital since the current is fixed to 4 mA
Each transmitter can be configured locally using the push-buttons (3101) or
membrane-buttons (3102/3105) which are revealed after removing the housing cover.
The 3102 and 3105 transmitters can be easily configured remotely by using a Rosemount 3490
Series Control Unit. Alternatively, a Field Communicator, or a PC with AMS Suite: Intelligent
Device Manager software can be used to configure each transmitter.
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A comprehensive specification for the Rosemount 3101, 3102, and 3105 is in the section
“Specifications” on page 77.
Figure 2-3. System Architecture
A. Rosemount 3102 or 3105 Transmitter
B. Two Relay Outputs from Transmitter (Rosemount 3102 only)
C. Remote Temperature Sensor (Optional Accessory for Rosemount 3102 and Rosemount 3105 Transmitters)
D. 751 Display
E. 4–20 mA signal / HART communications
F. Co nt rol Sys te m
G. Rosemount 3490 Series Control Unit
H. HART Modem
I. Field Communicator
J. AMS Suite: Intelligent Device Manager
6
Transm itter Over view
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Section 3 Installation
Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 7
Considerations before installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 8
Mechanical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10
Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 16
3.1 Safety messages
Procedures and instructions in this section may require special precautions to ensure the safety
of the personnel performing the operation. Information that raises potential safety issues is
indicated by a warning symbol ( ). Refer to the following safety messages before performing
an operation preceded by this symbol.
Section 3: Installation
February 2015
Explosions could result in death or serious injury.
Verify that the operating environment of the transmitter is consistent with the
appropriate hazardous locations certifications.
Before connecting a HART
®
-based communicator in an explosive atmosphere, make
sure the instruments in the loop are installed in accordance with intrinsically safe or
non-incendive field wiring practices.
Do not remove the housing cover in explosive atmospheres when the circuit is alive.
Failure to follow safe installation and servicing guidelines could result in death or
serious injury.
Make sure only qualified personnel perform the installation.
Use the equipment only as specified in this manual. Failure to do so may impair the
protection provided by the equipment.
Do not perform any service other than those contained in this manual unless you are
qualified.
Process leaks could result in death or serious injury.
Make sure that the transmitter is handled carefully.
High voltage that may be present on leads could cause electrical shock.
Avoid contact with leads and terminals
Make sure the main power to the transmitter is off and the lines to any other external
power source are disconnected or not powered while wiring.
Installation
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Section 3: Installation
February 2015
3.2 Considerations before installation
The Rosemount 3100 Series may be used for level and volume measurement in open- or closedtanks, or open channel flow measurement.
The glass-filled nylon housing version of the transmitter must be installed in a location where it
is protected from ultraviolet radiation to prevent long term degradation of the plastics used
e.g. shrouded from direct sunlight.
It is important to correctly position the transmitter for reliable ultrasonic level measurement.
For maximum accuracy and stability of the level measurement reading, the transmitter should
be shrouded from direct sunlight and radiated heat.
The transmitter may be site-tuned to deal with most application conditions, but it is
recommended that the following guidelines be adopted where relevant.
Note
The Rosemount 3100 Series is designed to be mounted in a non-metallic fitting or flange.
The use of metallic fittings/flanges is not recommended.
Please see “Spare parts and accessories for the 3101/3102/3105” on page 90.
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3.2.1 Safety considerations
Installation must be carried out by suitably trained personnel in accordance with the
applicable code of practice.
If the equipment is likely to come into contact with aggressive substances, it is the
responsibility of the user to take suitable precautions that prevent it from being
adversely affected, thus ensuring that the type of protection is not compromised.
Aggressive substances are acidic liquids or gases that may attack metals or solvents that
may affect polymeric materials.
Suitable precautions are regular checks as part of routine inspections, or establishing,
from the material's datasheet, that it is resistant to specific chemicals.
The equipment must only be cleaned with a damp cloth; do not use solvents.
The equipment is not intended to be repaired by the user and is to be replaced by an
equivalent certified unit. Repairs should only be carried out by the manufacturer or
approved repairer.
The transmitter is Double Insulated, and therefore Protective Earthing is not required.
However, the cable shield/screen should be connected to a suitable ground (earth) at
one end only (see “Connecting the cable(s) to the transmitter” on page 16).
Note that if the equipment is used in a manner not specified by the manufacturer, the
protection afforded by the equipment may be impaired.
To ensure electro-magnetic compatibility in any European member state, it should not
be installed in a residential area.
Note
It is not advisable to mount the transmitter in close proximity to a source of electrical noise such
as a variable-speed drive or other high-powered electrical device.
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3.2.2 Environmental considerations
The Rosemount 3105 Transmitter is Intrinsically Safe (IS) approved for hazardous area
installations.
The Rosemount 3101, 3102, and 3105 Transmitters are designed for open- or closed-
tank installation. They are weatherproof and protected against the ingress of dust.
Avoid installing the transmitters near heat sources.
Figure 3-1. Environmental Considerations
Section 3: Installation
February 2015
Installation
9
Section 3: Installation
February 2015
3.3 Mechanical installation
3.3.1 Mounting considerations
Mount the transmitter above the liquid using the 2-in. thread provided, but no closer
than 12 in. (0,3 m) to the surface. The transmitter does not detect any liquid surface
closer than 12 in. (0,3 m) to the transmitter face. (See “Mounting the transmitter above
the liquid surface” on page 12).
Optional flanges and bracket kits are available to help mounting
(see “Spare parts and accessories for the 3101/3102/3105” on page 90).
The transmitter should be mounted vertically to ensure a good echo from the liquid
surface. The transmitter beam half angle is 6 degrees (see Figure 3-2 on page 11).
Obstructions in the tank, or well, may generate echoes which can be confused with the
real liquid surface echo. Obstructions within the beam angle generate strong false
echoes. Wherever possible, the transmitter should be positioned to avoid false echoes.
To avoid detecting unwanted objects in the tank or well, it is advisable to maintain a
distance sideways of at least 1.3 in. from the center line of the transmitter for ever y foot
(11 cm per meter) range to the obstruction (see Figure 3-2 on page 11).
No false echoes are generated if the transmitter is located near the side of the tank or
well, and the wall is smooth and free of protrusions. However, there will still be a
reduction in the echo size. It is recommended that the transmitter be mounted no
closer than 12 in. (0,3 m) to the wall to avoid a large reduction in the echo size.
If the transmitter is mounted in an enclosed tank with a domed top, avoid mounting
the transmitter in the center of the tank roof because this could act as a parabolic
reflector and create unwanted echoes.
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Avoid applications where heavy condensation could form on the transmitter face.
If the transmitter is mounted in a stand-off or nozzle, the transmitter face should
protrude at least 0.2 in. (5 mm) into the tank. If this is not possible, see “Mounting the
transmitter above the liquid surface” on page 12).
If the transmitter is used in environments where direct sunlight can cause high
temperatures on exposed surfaces, a sun-shade is recommended.
Check that the maximum liquid level will not enter the 12-in. (0,3 m) blanking zone of
the transmitter.
3.3.2 Consider liquid surface conditions
Foaming liquids can reduce the size of the returned echo because foam is a poor
ultrasonic reflector.
Mount an ultrasonic transmitter over an area of clear liquid, such as near the inlet to a
tank or well. In extreme conditions, or where this is not possible, the transmitter may
be mounted in a vented stilling tube provided that the inside measurement of the
stilling tube is at least 4 in. (100 mm) and is smooth and free from joints or protrusions.
It is important that the bottom of the stilling tube stays covered to prevent the ingress
of foam.
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Avoid mounting the transmitter directly over any inlet stream.
Liquid surface turbulence is not normally a problem unless it is excessive. The effects of
turbulence are minor, but excessive turbulence can be dealt with by fine-tuning the
transmitter on site, if necessary.
3.3.3 Consider in-tank effects
Stirrers or agitators can cause a vortex. Mount the transmitter off-center of any vortex
to maximize the return echo.
If stirrer blades become uncovered, they create echoes as they pass through the
ultrasonic beam. The transmitter can learn to ignore these false echoes (see page 69 or
page 122).
In tanks with rounded or conical bottoms, mount the transmitter off-center. If needed,
a perforated reflector plate can be installed on the tank bottom directly under the
transmitter center line to ensure a satisfactory return echo.
Avoid detecting pump casings, as the liquid falls away, by not mounting the transmitter
directly above pumps. If this is not possible, fine-tuning of the transmitter on-site may
be required.
Section 3: Installation
February 2015
Figure 3-2. Tank Installation Considerations
A. Transmitter is Mounted Vertically (Maximum Deviation of 3°)
B. Use Non-metallic Fitting or Flange
C. 6° Beam Half Angle
D. 1.3 in./ft. (11 cm/m). Minimum of 12 in. (0,3 m)
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Section 3: Installation
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February 2015
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3.3.4 Mounting the transmitter above the liquid surface
A 2-in. thread is provided to mount the transmitter. The thread form is either 2-in. BSPT or NPT,
and is clearly marked on the hexagon of the transmitter body.
To help installation, flange accessories and bracket kits are available from Emerson Process
Management. The accessory flanges supplied are manufactured from PVC and are a full face
design. Care must be taken when installing to raised face mating flanges on the tank or vessel to
prevent distortion of the PVC flange by over-tightening the bolts. See “Spare parts and
accessories for the 3101/3102/3105” on page 90 for ordering information.
Note
The Rosemount 3101, 3102, and 3105 Transmitters are designed to be mounted in a
non-metallic fitting or flange. The use of metallic fittings/flanges is not recommended
Bracket mounting
The bracket kit contains a stainless steel angle bracket and PVC threaded disc, which may be
used to mount the transmitter on a support over the liquid surface.
The bracket and disc dimensions are in Figure A-5 on page 86. The combined weight of bracket
and disc is 16 oz (0,5 kg). For transmitter weight, see “Specifications” on page 77.
Installation instructions
1. Attach bracket to the disc using the three screws provided.
2. Attach the assembled bracket and disc to a rigid support over the liquid surface.
The bracket may be bolted to a suitable crossmember (structural section of steel).
Ensure the transmitter is perpendicular to the surface to maximize the return echo size.
3. Use PTFE tape on the screw thread of the transmitter (Figure 3-4 on page 13).
4. Insert the transmitter into the disc.
5. Tighten to a torque of 1.5 ft-lb (2 N-m) using the transmitter’s hexagon.
Do not use the transmitter housing to tighten.
Figure 3-3. Bracket Kit Mounting
12
A. Stainless Steel Bracket
B. No. 4X 13 Long Self Tap Screw (3 Positions) Carbon Steel (Zinc Plated)
C. PVC Disc
Installation
Reference Manual
PTFE
L
D
Tighten to a torque of 1.5 lbf.ft
(2 Nm) using the hexagon. Do
not use the housing to tighten
Use non-metallic
fitting / flange
00809-0100-4840, Rev CB
Installing in a tank with a nozzle or stand-off
Installation instructions
1. Use PTFE tape on the screw thread of the transmitter (Figure 3-4 on page 13).
2. If the tank has a flanged nozzle or stand-off:
Section 3: Installation
February 2015
a. Attach the transmitter to a non-metal instrument flange using the threaded
connection. Tighten to a torque of 1.5 lb-ft (2 N-m) using the transmitter’s hexagon.
b. The instrument (accessory) flanges supplied by Emerson Process Management are
manufactured from PVC and are a full face design. Care must be taken when installing
to a raised face mating flange on the tank or vessel to prevent distortion of the PVC
flange by over-tightening the bolts.
c. Ensure the gasket is sitting correctly on the nozzle/tank flange.
d. Lower the assembled transmitter and instrument flange onto the tank flange, and
secure with appropriate bolting to a suitable torque for the flanges.
If mating to a raised face flange (RF) on the tank nozzle or stand-off, tighten to a
maximum torque of 10 lb-ft (13.6 N-m).
3. If the tank has a threaded nozzle or stand-off:
a. Attach the transmitter to the nozzle/stand-off using the threaded connection.
b. Tighten to a torque of 1.5 lb-ft (2 N-m) using the transmitter’s hexagon.
Note
If the transmitter face does not protrude into the vessel, note the dimensions in Tab l e 3 -1 for
Figure 3-4, and always ensure that the nozzle/vessel weld is smooth and free from internal weld
beads or other projections.
Figure 3-4. Mounting the Transmitter using a Nozzle/Stand-off
Installation
Table 3-1. Nozzle diameter size (D) and maximum length (L)
Nozzle Diameter Size (D) Maximum Nozzle Length (L)
DN50 (2 in.) 4 in. (100 mm)
DN80 (3 in.) 6.3 in. (160 mm)
DN100 (4 in.) 6.3 in. (160 mm)
DN125 (5 in.) 11.8 in. (300 mm)
13
Section 3: Installation
A
B
C
D
A
B
C
February 2015
00809-0100-4840, Rev CB
3.3.5 Open channel flow installations (the 3102/3105)
There are normally two distinct parts to an open channel flow measurement system; the
primary element (flow structure) and the secondary element (Head measurement instrumentation). For accurate open channel flow measurement, both parts of the system must be
correctly installed. This section explains the important parts of installing the transmitter
(secondary element). The flow structure (primary element) installation can be referenced in the
British (BS3680) or ISO International standards.
Positioning of the transmitter is critical, and should be the correct distance upstream from the
flow structure as stated in the relevant standard for your country. For example, in the ISO
standards, the distance should be four to five times the maximum height of the water (Hmax)
for a thin plate weir, or three to four times Hmax for a flume. For optimum accuracy, position the
transmitter’s front face at a height equal to the sum of the maximum flow depth plus the
transmitter deadband of 12.2 in. (300 mm) plus an extra 2 in. (50 mm).
Figure 3-5. Choosing the Height Position above a Flow
Reference Manual
A. Transmitter Front Face
B. Hmax
C. Transmitter Bottom Reference = Hmax + 12.2 in. (300 mm) + 2 in. (50 mm)
It is important that the bottom reference of the transmitter should be related to the datum of
the primary measuring device (see Figure 3-6).
Figure 3-6. Transmitter Bottom Reference for a Flume or Weir
A. Transmitter Bottom Reference C. Approach Channel
B. Primary Element (e.g. Flume, Weir) Invert D. Flow
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Installation
Reference Manual
A
B
00809-0100-4840, Rev CB
When setting the bottom reference on a ‘V’ notch weir, it is important the true invert is used and
not the meniscus level (Figure 3-7).
Figure 3-7. Bottom reference of a ‘V’-notch weir
Section 3: Installation
February 2015
A. Transmitter Bottom Reference (i.e. True Invert)
B. Meniscus Level
Note
The transmitter should be free from a situation where it is likely to 'drown' (refer to relevant
Standard for further information)
The Rosemount 3102 and Rosemount 3105 have the option of a Remote Temperature Sensor
(RTS) for temperature compensation (see page 21). The temperature sensor should be
mounted in a location where it can get an accurate air temperature measurement and is
protected from sunlight. (See Quick Installation Guide 00825-0100-4842 for further RTS
installation information)
If the flow structure permits, mount the transmitter within the flow channel or chamber.
Shroud the transmitter from direct sunlight for maximum accuracy and stability
Installation
15
Section 3: Installation
February 2015
3.4 Electrical installation
3.4.1 Connecting the cable(s) to the transmitter
The Rosemount 3100 Series is a two-wire loop-powered transmitter accepting power supplies
as follows:
The 3101: 12 to 30 Vdc
The 3102: 12 to 40 Vdc
The 3105: 12 to 40 Vdc (non-hazardous), 12 to 30 Vdc (hazardous).
Note
To comply with the CSA approval requirements, the 3101 and the 3102 must be powered from a
Rosemount 3490 Series Control Unit or a class 2 separate extra-low voltage (SELV) source
Other devices may reset if connecting the transmitter to a multi-drop system while the loop is
powered. De-energize the loop to avoid devices being reset
Each transmitter is supplied with two cable entries. A suitable conduit system or cable gland
must be used to maintain the weather-proof rating and hazardous area protection. Any unused
entry must be sealed with a suitably rated blanking plug.
Reference Manual
00809-0100-4840, Rev CB
A two-core, shielded/screened cable is required for external power supply and output signal
connections. The cable is not supplied.
Connect the cable(s) to the transmitter
1. Make sure that the power supply is disconnected.
2. Undo the three cover screws and then lift the transmitter housing cover.
The cover on the metal housing can rest on the hinge. Place an object under the cover
to avoid the transmitter toppling over.
3. Pass the cable through the cable gland/conduit.
4. Connect the cable wires:
a. For The Rosemount 3101, connect wires according to the section
“Connecting the cable wires to the Rosemount 3101” on page 17.
b. For The Rosemount 3102, connect wires according to the section
“Connecting the cable wires to the Rosemount 3102” on page 18.
c. For The Rosemount 3105, connect wires according to the section
“Connecting the cable wires to the Rosemount 3105” on page 19.
5. Connect the cable shield/screen to a suitable ground (earth) at one end only.
6. Replace the cover, tighten the cable gland, and connect the power supply.
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Installation
Reference Manual
E
C
12 to 30 Vdc
0 Vdc
B
A
D
00809-0100-4840, Rev CB
Section 3: Installation
What to do after completing the cabling
To maintain the weather-proof rating and hazardous area protection of the transmitter, ensure
all cable glands, blanking plugs, and seals are in good condition.
Check that the cover seal is in good condition, and not twisted or misaligned in the seal location
groove. When replacing the cover, tighten the three cover screws evenly to exert uniform
pressure on the cover seal.
3.4.2 Connecting the cable wires to the Rosemount 3101
The Rosemount 3101 is not intrinsically safe, and is for use in non-hazardous (ordinary location)
installations only.
Wire the transmitter as shown in Figure 3-8.
Important
Make sure that the power supply is off when connecting the transmitter
February 2015
Table 3-2. Terminal Connections on the Rosemount 3101
Connections
Ter min al 1 24 Vdc
Ter min al 2 0 Vdc
Earth Screen Connect the cable shield/screen to ground (earth) in the control room
Figure 3-8. Wiring Diagram for the Rosemount 3101
Installation
A. Maximum cable length is 9750 ft. (3000 m)
B. Connect the cable shield/screen to ground (earth) in the control room
C. Cable thickness: Ø0.15 to 0.31 in. (Ø4 to 8 mm)
D. Twisted-pair, screened wires. Minimum size: 0.22 mm2 (24 SWG / 23 AWG); Maximum: 1.5 mm2 (16 SWG / 18 AWG)
E. Minimum of 12 Vdc is required at the transmitter for it to operate
17
Section 3: Installation
E
CD
0 Vdc
12 to 40 Vdc
B
A
February 2015
Reference Manual
00809-0100-4840, Rev CB
3.4.3 Connecting the cable wires to the Rosemount 3102
The Rosemount 3102 is not intrinsically safe, and is for use in non-hazardous (Ordinary Location)
installations only.
Wire the transmitter as shown in Figure 3-9. If HART digital communications is required, see
also “Wiring to allow HART communications” on page 21.
Important
Make sure the power supply is off when connecting the transmitter
Table 3-3. Terminal Connections on the Rosemount 3102
Connections
Ter min al 1 24 Vdc
Ter min al 2 0 Vdc
Ter min al 3 RL1 (SPST) - see “Relays” on page 19
Ter min al 4 RL1 (SPST) - see “Relays” on page 19
Ter min al 5 RL2 (SPST) - see “Relays” on page 19
Ter min al 6 RL2 (SPST) - see “Relays” on page 19
Ter min al 7 Remote temperature sensor (if used) - see “Remote temperature sensor” on page 21
Ter min al 8 Remote temperature sensor (if used) - see “Remote temperature sensor” on page 21
Earth Screen Connect the cable shield/screen to ground (earth) in the control room
Figure 3-9. Wiring Diagram for the Rosemount 3102
A. Maximum cable length is 9750 ft. (3000 m)
B. Connect the cable shield/screen to ground (earth) in the control room
C. Cable thickness: Ø0.15 to 0.31 in. (Ø4 to 8 mm)
D. Twisted-pair, screened wires. Minimum size: 0.22 mm2 (24 SWG / 23 AWG); Maximum: 1.5 mm2 (16 SWG / 18 AWG)
E. Minimum of 12 Vdc is required at the transmitter for it to operate
18
Installation
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