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Reference Manual
00809-0100-4001, Rev JA
Section 2: Installation
November 2012
Installation
2.12 Liquid level measurement
Differential pressure transmitters used for liquid level applications measure hydrostatic pressure
head. Liquid level and specific gravity of a liquid are factors in determining pressure head. This
pressure is equal to the liquid height above the tap multiplied by the specific gravity of the
liquid. Pressure head is independent of volume or vessel shape.
Test
(Plugged)
Test
(Plugged)
Equalize
(closed)
Process
Isolate
(closed)
Isolate
(open)
H
L
2. Open the equalize valve on
the high pressure (upstream)
side of the transmitter.
Process
Equalize
(open)
Drain
Vent
(closed)
3. Open the equalize valve on
the low pressure
(downstream) side of the
transmitter. The manifold is
now in the proper
configuration for zeroing the
transmitter.
Test (Plugged)
Test
(Plugged)
Equalize
(open)
Process
Isolate
(closed)
Isolate
(open)
H
L
Process
Equalize
(open)
Drain
Vent
(closed)
Test
(Plugged)
Test
(Plugged)
Equalize
(closed)
Process
Isolate
(closed)
Isolate
(open)
H
L
4. After zeroing the transmitter,
close the equalize valve on
the low pressure
(downstream) side of the
transmitter.
Process
Equalize
(open)
Drain
Vent
(closed)
- Protocol 1
- Rosemount 3051 Pressure 3
- Transmitter 3
- Title Page 4
- Contents 5
- 3Section 3: Configuration 6
- 5Section 5: Troubleshooting 7
- Reference Manual 10
- Table of Contents 10
- Section 1 Introduction 11
- 1.3 Models covered 12
- 1.4 Transmitter overview 13
- Section 2 Installation 15
- 2.3 General considerations 16
- 2.4 Mechanical considerations 17
- 2.8 Installation procedures 20
- Flange bolts 21
- Bolt installation 23
- 2.8.2 Impulse piping 24
- Mounting requirements 25
- 2.8.3 Process connections 26
- O-rings: 27
- 2.8.5 Housing rotation 28
- 2.8.6 LCD display 29
- Security (write protect) 30
- TRANSMITTER SECURITY 31
- JUMPER POSITIONS 31
- 2.9 Electrical considerations 32
- 2.9.2 Wiring 33
- Section 2: Installation 34
- Installation 34
- Power supply for 4-20 mA HART 35
- 2.9.4 Grounding 37
- Signal wiring 38
- Transmitter case 38
- External Ground 39
- Assembly 39
- Figure 2-24. Manifolds 40
- 2.11.4 Manifold operation 41
- 2.12 Liquid level measurement 44
- 2.12.1 Open vessels 45
- 2.12.2 Closed vessels 45
- Dry leg condition 46
- Wet leg condition 46
- Bubbler system in open vessel 46
- Figure 2-26. Wet leg example 47
- Section 3 Configuration 49
- 3.3 Commissioning 50
- 3.3.2 Wiring diagrams 51
- 3.5 Field communicator 52
- Section 3: Configuration 54
- Configuration 54
- 3.8 Check output 60
- 3.8.1 Process variables 61
- 3.8.2 Sensor temperature 61
- 3.9 Basic setup 62
- 3.9.3 Rerange 63
- Field communicator 65
- AMS device manager 65
- 3.9.4 Damping 67
- 3.10 LCD display 68
- 3.11 Detailed setup 71
- 3.12 Diagnostics and service 72
- 3.13 Advanced functions 74
- 3.13.2 Burst mode 77
- 3.14 Multidrop communication 78
- 4.1 Overview 81
- 4.2 Safety messages 81
- 4.3 Calibration overview 82
- TPE = = 0.117% of span 85
- TPE = = 0.105% of span 86
- 4.4 Analog output trim 87
- AMS Device Manager 89
- 4.5 Sensor trim 91
- 4.5.2 Zero trim 92
- 4.5.3 Sensor trim 93
- Zero effect 95
- Span effect 95
- Operation and maintenance 98
- Section 5 Troubleshooting 99
- 5.2.1 Warnings ( ) 100
- Section 5: Troubleshooting 101
- Troubleshooting 101
- Symptom Corrective actions 101
- 5.3 Diagnostic messages 102
- Operation 103
- Span Fail 104
- Local Dsbld 104
- Write Protect 104
- Message Description 105
- 5.4 Disassembly procedures 107
- 5.4.1 Remove from service 108
- 5.4.2 Remove terminal block 109
- 5.5 Reassembly procedures 110
- 00809-0100-4001, Rev JA 111
- November 2012 111
- A.1.2 Reference accuracy 114
- A.1.3 Total performance 114
- A.1.4 Long term stability 115
- A.1.5 Dynamic performance 115
- A.1.9 Vibration effect 116
- A.1.10 Power supply effect 117
- A.2 Functional specifications 118
- A.2.3 Service 120
- A.2.4 4–20 mA (Output Code A) 120
- fieldbus Parameters 121
- Minimum Load Impedance 123
- Indication 123
- Overpressure Limits 123
- A.2.13 Static Pressure Limit 124
- A.2.14 Burst Pressure Limits 124
- A.2.15 Failure Mode Alarm 124
- A.2.16 Temperature Limits 125
- A.3 Physical specifications 126
- A.3.3 Process-Wetted Parts 127
- A.3.5 Non-Wetted Parts 128
- A.3.6 Shipping Weights 129
- A.4 Dimensional Drawings 130
- 3051C Coplanar Flange 131
- Appendix A: Reference Data 132
- 3051T Dimensional Drawings 135
- Pipe Mounting Panel Mounting 136
- 3051L Dimensional Drawings 137
- A.5 Ordering Information 141
- (3051C with Option Code S1)) 146
- OUNDATION fieldbus Protocol ★ 149
- Axxxx Specials •• •• 165
- A.6 Options 166
- Shipping weights 169
- A.7 Spare parts 174
- OUNDATION or PROFIBUS PA) 177
- Mounting brackets Part number 182
- B.1 Overview 185
- B.2 Safety messages 185
- B.2.1 Warnings 186
- FM Approvals 187
- CSA international 187
- European certifications 188
- Japanese certifications 189
- IECEx certifications 189
- Inmetro certifications 190
- China certifications 191
- B.6 Approval drawings 194
- Product certifications 195
- Index-207 217
- Index-208 218
- Index-209 219
- Index-210 220
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