Rosemount 3051C Operating Manual

Reference Manual

00809-0100-4001, Rev KA

May 2017

Rosemount™ 3051 Pressure Transmitter

with HART® Protocol

Reference Manual	Contents
00809-0100-4001, Rev KA	May 2017

Contents

Section 1: Introduction

1.1 Using this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Models covered. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.3 Product recycling/ disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Section 2: Configuration

2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.3.1 Setting the loop to manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.3.2 Wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.4 Configuration data review. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.5 Field Communicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.5.1 Field Communicator user interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.6 Field Communicator menu trees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.7 Traditional Fast Key sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.8 Check output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.8.1 Process variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.8.2 Sensor temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.9 Basic setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.9.1 Set process variable units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.9.2 Set output (transfer function). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.9.3 Rerange. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.9.4 Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 2.10 LCD display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2.10.1 LCD display configuration for 4–20 mA HART only. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2.10.2 Custom display configuration 4–20 mA HART only . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 2.11 Detailed setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2.11.1 Failure mode alarm and saturation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2.11.2 Alarm and saturation levels for burst mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2.11.3 Alarm and saturation values for multidrop mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2.11.4 Alarm level verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2.12 Diagnostics and service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2.12.1 Loop test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2.13 Advanced functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 2.13.1 Saving, recalling, and cloning configuration data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

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2.13.2 Burst mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 2.14 Multidrop communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 2.15 Changing a transmitter address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 2.15.1 Communicating with a multidropped transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 2.15.2 Polling a multidropped transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Section 3: Installation

3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3.2 Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3.3 General considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 3.4 Mechanical considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 3.5 Draft range considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.6 Environmental considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.7 HART installation flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.8 Installation procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3.8.1 Mount the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 3.8.2 Impulse piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 3.8.3 Process connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 3.8.4 Inline process connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.8.5 Housing rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3.8.6 LCD display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 3.8.7 Configure security and alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3.9 Electrical considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 3.9.1 Conduit installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 3.9.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 3.9.3 Transient protection terminal block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 3.9.4 Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

3.10 Hazardous locations certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 3.11 Rosemount 305, 306, and 304 Manifolds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 3.11.1 Rosemount 305 Integral Manifold installation procedure. . . . . . . . . . . . . . . . . . . . . . . 52 3.11.2 Rosemount 306 Integral Manifold installation procedure. . . . . . . . . . . . . . . . . . . . . . . 53 3.11.3 Rosemount 304 Conventional Manifold installation procedure. . . . . . . . . . . . . . . . . . 53 3.11.4 Manifold operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 3.12 Liquid level measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 3.12.1 Open vessels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 3.12.2 Closed vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

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Section 4: Operation and Maintenance

4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 4.2 Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 4.3 Calibration overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 4.3.1 Determining calibration frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 4.3.2 Selecting a trim procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 4.4 Analog output trim. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 4.4.1 Digital-to-Analog trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 4.4.2 Digital-to-Analog trim using other scale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 4.4.3 Recall factory trim—analog output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 4.5 Sensor trim. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 4.5.1 Sensor trim overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 4.5.2 Zero trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 4.5.3 Sensor trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 4.5.4 Recall factory trim—sensor trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 4.5.5 Line pressure effect (range 2 and 3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 4.5.6 Compensating for line pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Section 5: Troubleshooting

5.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 5.2 Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 5.3 Diagnostic messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 5.4 Disassembly procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 5.4.1 Remove from service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 5.4.2 Remove terminal block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 5.4.3 Remove the electronics board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 5.4.4 Remove the sensor module from the electronics housing . . . . . . . . . . . . . . . . . . . . . . 85 5.5 Reassembly procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 5.5.1 Attach the electronics board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 5.5.2 Install the terminal block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 5.5.3 Reassemble the Rosemount 3051C process flange . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Appendix A: Specifications and Reference Data

A.1 Performance specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 A.1.1 Conformance to specification (±3s [Sigma]) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 A.1.2 Reference accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 A.1.3 Total performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 A.1.4 Long term stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

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A.1.5 Dynamic performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 A.1.6 Line pressure effect per 1000 psi (6,9 MPa) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 A.1.7 Ambient temperature effect per 50 °F (28 °C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 A.1.8 Mounting position effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 A.1.9 Vibration effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 A.1.10 Power supply effect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

A.1.11 Electromagnetic

compatibility (EMC)92

A.1.12 Transient protection (option code T1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 A.2 Functional specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 A.2.1 Range and sensor limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 A.2.2 Zero and span adjustment requirements (HART and Low Power) . . . . . . . . . . . . . . . . 94 A.2.3 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 A.2.4 4–20 mA (output code A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 A.2.5 Foundation Fieldbus (output code F) and PROFIBUS® (output code W). . . . . . . . . . . 94 A.2.6 Foundation Fieldbus function block execution times. . . . . . . . . . . . . . . . . . . . . . . . . . . 95 A.2.7 Foundation Fieldbus parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 A.2.8 Standard function blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 A.2.9 Backup Link Active Scheduler (LAS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 A.2.10 Advanced control function block suite (option code A01) . . . . . . . . . . . . . . . . . . . . . . 95 A.2.11 Foundation Fieldbus Diagnostics Suite (option code D01) . . . . . . . . . . . . . . . . . . . . . . 96 A.2.12 Low Power (output code M) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 A.2.13 Static pressure limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 A.2.14 Burst pressure limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 A.2.15 Failure mode alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 A.2.16 Temperature limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 A.3 Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 A.3.1 Electrical connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 A.3.2 Process connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 A.3.3 Process-wetted parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 A.3.4 Rosemount 3051L process wetted parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 A.3.5 Non-wetted parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 A.3.6 Shipping weights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 A.4 Dimensional drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 A.5 Ordering information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 A.6 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 A.7 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Contents

Reference Manual	Contents
00809-0100-4001, Rev KA	May 2017

Appendix B: Product Certifications

B.1 European directive information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 B.2 Ordinary location certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 B.3 North America . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 B.4 Europe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146 B.5 International . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 B.6 Brazil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149 B.7 China . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 B.8 Japan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 B.9 Technical Regulations Customs Union (EAC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 B.10 Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 B.11 Conduit plugs and adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 B.12 Additional Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 B.13 Approval drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

B.13.1 Factory mutual 03031-1019 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 B.13.2 Canadian standards association (CSA) 03031-1024 . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Contents

vii

Contents	Reference Manual
May 2017	00809-0100-4001, Rev KA

viii

Contents

Reference Manual	Title Page
00809-0100-4001, Rev KA	May 2017

Rosemount™ 3051 Pressure Transmitter

NOTICE

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.

For technical assistance, contacts are listed below:

Customer Central

Technical support, quoting, and order-related questions.

United States - 1-800-999-9307 (7:00 am to 7:00 pm CST)

Asia Pacific65 777 8211

Europe/ Middle East/ Africa - 49 (8153) 9390

North American Response Center

Equipment service needs.

1-800-654-7768 (24 hours—includes Canada)

Outside of these areas, contact your local Emerson™ 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 Emerson Sales

Representative.

Title Page

Title Page				Reference Manual
May 2017				00809-0100-4001, Rev KA

Explosions could result in death or serious injury.

Installation of this transmitter in an explosive environment must be in accordance with the appropriate local, national, and international standards, codes, and practices. Review the approvals section of this manual for any restrictions associated with a safe installation.

Before connecting a Field Communicator in an explosive atmosphere, ensure the instruments in the loop are installed in accordance with intrinsically safe or non-incendive field wiring practices.

In an explosion-proof/flameproof installation, do not remove the transmitter covers when power is applied to the unit.

Process leaks may cause harm or result in death.

 Install and tighten process connectors before applying pressure.

Electrical shock can result in death or serious injury.

Avoid contact with the leads and terminals. High voltage that may be present on leads can cause electrical shock.

x	Title Page

Reference Manual	Introduction
00809-0100-4001, Rev HA	May 2017

Section 1	Introduction

1.1Using this manual

The sections in this manual provide information on installing, operating, and maintaining the Rosemount™ 3051 Pressure Transmitter. The sections are organized as follows:

Section 2: Configuration contains mechanical and electrical installation instructions, and field upgrade options.

Section 3: Installation provides instruction on commissioning and operating Rosemount 3051 transmitters. Information on software functions, configuration parameters, and online variables is also included.

Section 4: Operation and Maintenance contains operation and maintenance techniques.

Section 5: Troubleshooting provides troubleshooting techniques for the most common operating problems.

Appendix A: Specifications and Reference Data supplies reference and specification data, as well as ordering information.

Appendix B: Product Certifications contains intrinsic safety approval information, European ATEX directive information, and approval drawings.

1.2Models covered

The following transmitters are covered by this manual:

Rosemount 3051C Coplanar™ pressure Transmitter

Rosemount 3051CD Differential Pressure Transmitter

–Measures differential pressure up to 2000 psi (137,9 bar).

Rosemount 3051CG Gage Pressure Transmitter

–Measures gage pressure up to 2000 psi (137,9 bar).

Rosemount 3051CA Absolute Pressure Transmitter

–Measures absolute pressure up to 4000 psia (275,8 bar).

Rosemount 3051T In-Line pressure Transmitter

Rosemount 3051T Gage and Absolute Pressure Transmitter

– Measures gage pressure up to 10000 psi (689,5 bar).

Rosemount 3051L Liquid Level Transmitter

–Provides precise level and specific gravity measurements up to 300 psi (20,7 bar) for a wide variety of tank configurations.

Note

For transmitters with FOUNDATION™ Fieldbus, see Rosemount 3051 Reference Manual.

For transmitters with PROFIBUS® PA, see Rosemount 3051 Reference Manual.

Introduction

Introduction	Reference Manual
May 2017	00809-0100-4001, Rev HA

1.3Product recycling/ disposal

Recycling of equipment and packaging should be taken into consideration and disposed of in accordance with local and national legislation/regulations.

2	Introduction

Reference Manual		Configuration
00809-0100-4001, Rev KA		May 2017

Section 2		Configuration

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	page 3
Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	page 3
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	page 4
Configuration data review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	page 6
Field Communicator menu trees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	page 8
Traditional Fast Key sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	page 12
Check output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	page 14
Basic setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	page 15
LCD display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	page 21
Detailed setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	page 23
Diagnostics and service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	page 24
Advanced functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	page 26
Multidrop communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	page 29

2.1Overview

This section contains information on commissioning and tasks that should be performed on the bench prior to installation.

Field Communicator and AMS Device Manager instructions are given to perform configuration functions. For convenience, Field Communicator Fast Key sequences are labeled “Fast Keys” for each software function below the appropriate headings.

2.2Safety messages

Procedures and instructions in this section may require special precautions to ensure the safety of the personnel performing the operations. 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.

Configuration

Configuration			Reference Manual
May 2017			00809-0100-4001, Rev KA

Explosions could result in death or serious injury.

Before connecting a Field Communicator in an explosive atmosphere, ensure the instruments in the loop are installed in accordance with intrinsically safe or non-incendive field wiring practices.

In an explosion-proof/flameproof installation, do not remove the transmitter covers when power is applied to the unit.

Process leaks may cause harm or result in death.

 Install and tighten process connectors before applying pressure.

Electrical shock can result in death or serious injury.

Avoid contact with the leads and terminals. High voltage that may be present on leads can cause electrical shock.

2.3Commissioning

Commissioning consists of testing the transmitter and verifying transmitter configuration data. The Rosemount™ 3051 Pressure Transmitters can be commissioned either before or after installation. Commissioning the transmitter on the bench before installation using a Field Communicator or AMS Device Manager ensures that all transmitter components are in working order.

To commission on the bench, required equipment includes a power supply, a milliamp meter, and a Field Communicator or AMS Device Manager. Wire equipment as shown in Figure 2-1 and Figure 2-2. To ensure successful communication, a resistance of at least

250 ohms must be present between the Field Communicator loop connection and the power supply. Connect the Field Communicator leads to the terminals labeled “COMM” on the terminal block.

Set all transmitter hardware adjustments during commissioning to avoid exposing the transmitter electronics to the plant environment after installation.

When using a Field Communicator, any configuration changes made must be sent to the transmitter by using the Send key. AMS Device Manager configuration changes are implemented when the Apply button is clicked.

2.3.1Setting the loop to manual

Whenever sending or requesting data that would disrupt the loop or change the output of the transmitter, set the process application loop to manual. The Field Communicator or AMS Device Manager will prompt you to set the loop to manual when necessary. Acknowledging this prompt does not set the loop to manual. The prompt is only a reminder; set the loop to manual as a

separate operation.

2.3.2Wiring diagrams

Connect the equipment as shown in Figure 2-1 for 4–20 mA HART® or Figure 2-2 for 1-5 Vdc HART Low Power. To ensure successful communication, a resistance of at least 250 ohms must be present between the Field Communicator loop connection and the power supply. The Field Communicator or AMS Device Manager may be connected at “COMM” on the transmitter terminal block or across the load resistor.

4	Configuration

Reference Manual		Configuration
00809-0100-4001, Rev KA		May 2017

Connecting across the “TEST” terminals will prevent successful communication for 4–20 mA HART output.

Turn on the Field Communicator by pressing the ON/OFF key or log into AMS Device Manager. The Field Communicator or AMS Device Manager will search for a HART-compatible device and indicate when the connection is made. If the Field Communicator or AMS Device Manager fail to connect, it indicates that no device was found. If this occurs, refer to Section 5: Troubleshooting.

Figure 2-1. Wiring (4–20 mA)

A.Current meter

B.RL≥ 250Ω

C.24 Vds supply

Figure 2-2. Wiring (Low-Power)

A B

A.Voltmeter

B.6 - 14 Vdc supply

Configuration

Configuration	Reference Manual
May 2017	00809-0100-4001, Rev KA

2.4Configuration data review

Note

Information and procedures in this section that make use of Field Communicator Fast Key sequences and AMS Device Manager assume that the transmitter and communication equipment are connected, powered, and operating correctly.

The following is a list of factory default configurations. These can be reviewed by using the Field Communicator or AMS Device Manager.

Field Communicator

Traditional 4–20 mA Fast Keys	1, 5

Traditional 1–5 Vdc Fast Keys	1, 5

Device Dashboard Fast Keys	1, 7

Enter the Fast Key sequence to view the configuration data.

Transmitter model	Type

Tag	Range

Date	Descriptor

Message	Minimum and maximum sensor limits

Minimum span	Units

4 and 20 mA points	Output (linear or sq. root)

Damping	Alarm setting (high, low)

Security setting (on, off)	Local zero/span keys (enabled, disabled)

Integral display	Sensor fill

Isolator material	Flange (type, material)

O-ring material	Drain/Vent

Remote seal (type, fill fluid, isolator material, number)	Transmitter S/N

Address	Sensor S/N

AMS Device Manager

Right click on the device and select Configuration Properties from the menu. Select the tabs to review the transmitter configuration data.

6	Configuration

Reference Manual		Configuration
00809-0100-4001, Rev KA		May 2017

2.5Field Communicator

(Version 1.8)

2.5.1Field Communicator user interface

Figure 2-3. Traditional Interface

The corresponding menu trees can be viewed on page 8 and page 9.

The Fast Key sequence can be viewed on page 12.

Figure 2-4. Device Dashboard

The corresponding menu trees can be viewed on page 10 through page 12.

The Fast Key sequence can be viewed on page 14.

Configuration

Configuration	Reference Manual
May 2017	00809-0100-4001, Rev KA

2.6Field Communicator menu trees

Figure 2-5. Rosemount 3051 Traditional HART Menu Tree For 4-20 Ma HART Output

8	Configuration

Reference Manual		Configuration
00809-0100-4001, Rev KA		May 2017


Figure 2-6. Rosemount 3051 Traditional HART Menu Tree for 1-5 Vdc Low Power

Configuration

Configuration	Reference Manual
May 2017	00809-0100-4001, Rev KA

Figure 2-7. Overview

Home
Home		Overview
1	Overview	Overview
		1	Device Status

2	Configure
2	Configure	2	Comm Status
3	Service Tools	2	Comm Status
3	Service Tools	3	Pressure
		3	Pressure
		4	Analog Output
		4	Analog Output
		5	Pressure URV
		6	Pressure LRV
		7	Device Information
		7	Device Information

Identification

1 Tag

2 Model

3 Transmitter S/N

4 Date

5 Descriptor

6 Message

Device Information

1Identification

2HART

3Materials of Construction

4RS Materials of Construction

5 Analog Alarm

6 Security HART

1 Universal Revision

2 Field Device Revision

3 Hardware Revision

4 Software Revision

Materials of Construction

1 Sensor Config

2 Sensor Range

3 Upper Sensor Limits

4 Lower Sensor Limits

5 Isolator Material

6 Fill Fluid

7 Process Connection

8 Process Connection Matl

9 O-ring Material

Drain/Vent Material

RS Materials of Construction

1 Number of Remote Seals

2 RS Seal

3 RS Fill Fluid

4 RS Isolator Material

Analog Alarm

1 Alarm Direction

2 High Alarm

3 High Saturation

4 Low Saturation

5 Low Alarm

Security

1 Write Protect Status

2 Local Zero/Span

10	Configuration

Reference Manual

Configuration

00809-0100-4001, Rev KA

May 2017

Figure 2-8. Configure

Tag, Message, Descriptor, Date, Pressure Units,

Temperature Units, Damping, URV, LRV

Home

Configure

Guided Setup

Process Variables

1 Overview

1 Guided Setup

1 Basic Setup

1 Pressure Units

2 Configure

2 Manual Setup

2 Zero

2 Damping

3 Service Tools

3 Configure Display

3 Transfer Function

4 Temperature Unit

5 Pressure

6 Sensor Temperature

Analog Output

1 Upper Range Value

2 Lower Range Value

3 Analog Output

4 Percent of Range

5 Upper Sensor Limits

Manual Setup

6 Lower Sensor Limits

1 Process Variables

7 Minimum Span

2 Analog Output

8 Range by Applying Pressure

3 Display

4 HART

5 Security

6 Device Information

Display

1 Display Option

2 Decimal Places

3 Upper Range Value

4 Lower Range Value

5 Transfer Function

6 Units

Burst Option

HART

% range/current

1 Burst Mode

Process Vars/current

2 Burst Option

Process Variables

3 Polling Address

Security

1 Write Protect Status

2 Local Zero/Span

Identification

1 Tag

Device Information

2 Model

1 Identification

3 Transmitter S/N

2 Flange

4 Date

3 Remote Seal

5 Descriptor

6 Message

Flange

1 Process Connection

2 Process Conn matl

3 O-ring Material

4 Drain/Vent Material

Remote Seal

1 Number of Remote Seals

2 RS Seal

3 RS Fill Fluid

4 RS Isolator Material

Configuration

Reference Manual

May 2017

00809-0100-4001, Rev KA

Figure 2-9. Service Tools

Home

Service Tools

Alerts

Overview

1 Alerts

1 Refresh Alerts

Configure

2 Variables

Variables

Service Tools

3 Trends

Variable Summary

Only Active Alerts show up here

4 Maintenance

Pressure

5 Simulate

3 Analog Output

Sensor Temperature

Trends
Trends
1	Pressure	Trend Graph
2	Sensor Temperature	Trend Graph
2	Sensor Temperature

Maintenance
Maintenance
1 Pressure Calibration	Pressure Calibration
1 Pressure Calibration	Pressure Calibration
2 Analog Calibration	1	Upper
3 Recall Factory Calibration	2	Lower
	3	Zero
	4	Upper Cal Pt
	5	Lower Cal Pt
	6	Upper Sensor Limits
Simulate	7	Lower Sensor Limits
Simulate	7	Lower Sensor Limits
1 Loop Test
1 Loop Test

2.7Traditional Fast Key sequence

A check ( ) indicates the basic configuration parameters. At minimum, these parameters should be verified as part of the configuration and startup procedure.

Table 2-1. Traditional Fast Key Sequence

Function	4–20 mA HART	1–5 Vdc HART low power

Alarm and Saturation Levels	1, 4, 2, 7	N/A
Analog Output Alarm Type	1, 4, 3, 2, 4	1, 4, 3, 2, 4
Burst Mode Control	1, 4, 3, 3, 3	1, 4, 3, 3, 3
Burst Operation	1, 4, 3, 3, 4	1, 4, 3, 3, 4
Custom Meter Configuration	1, 3, 7, 2	N/A
Custom Meter Value	1, 4, 3, 4, 3	N/A
Damping	1, 3, 6	1, 3, 6
Date	1, 3, 4, 1	1, 3, 4, 1
Descriptor	1, 3, 4, 2	1, 3, 4, 2

12	Configuration

Reference Manual					Configuration
00809-0100-4001, Rev KA						May 2017

	Table 2-1. Traditional Fast Key Sequence

		Function	4–20 mA HART		1–5 Vdc HART low power

		Digital To Analog Trim (4-20 mA Output)	1, 2, 3, 2, 1		1, 2, 3, 2, 1
		Disable Local Span/Zero Adjustment	1, 4, 4, 1, 7		1, 4, 4, 1, 7
		Field Device Information	1, 4, 4, 1		1, 4, 4, 1
		Full Trim	1, 2, 3, 3		1, 2, 3, 3
		Keypad Input – Rerange	1, 2, 3, 1, 1		1, 2, 3, 1, 1
		Local Zero and Span Control	1, 4, 4, 1, 7		1, 4, 4, 1, 7
		Loop Test	1, 2,	2	1, 2,	2
		Lower Sensor Trim	1, 2, 3, 3, 2		1, 2, 3, 3, 2
		Message	1, 3, 4, 3		1, 3, 4, 3
		Meter Options	1, 4, 3, 4		N/A
		Number of Requested Preambles	1, 4, 3, 3, 2		1, 4, 3, 3, 2
		Poll Address	1, 4, 3, 3, 1		1, 4, 3, 3, 1
		Poll a Multidropped Transmitter	Left Arrow, 4, 1, 1		Left Arrow, 4, 1, 1
		Range Values	1, 3, 3		1, 3, 3
		Rerange	1, 2, 3, 1		1, 2, 3, 1
		Scaled D/A Trim (4–20 mA Output)	1, 2, 3, 2, 2		1, 2, 3, 2, 2
		Self Test (Transmitter)	1, 2, 1, 1		1, 2, 1, 1
		Sensor Info	1, 4, 4, 2		1, 4, 4, 2
		Sensor Temperature	1, 1, 4		1, 1, 4
		Sensor Trim Points	1, 2, 3, 3, 4		1, 2, 3, 3, 4
		Status	1, 2, 1, 2		1, 2, 1, 2
		Tag	1, 3, 1		1, 3, 1
		Transfer Function (Setting Output Type)	1, 3, 5		1, 3, 5
		Transmitter Security (Write Protect)	1, 3, 4, 4		1, 3, 4, 4
		Trim Analog Output	1, 2, 3, 2		1, 2, 3, 2
		Units (Process Variable)	1, 3, 2		1, 3, 2
		Upper Sensor Trim	1, 2, 3, 3, 3		1, 2, 3, 3, 3
		Zero Trim	1, 2, 3, 3, 1		1, 2, 3, 3, 1

Configuration

Configuration			Reference Manual
May 2017		00809-0100-4001, Rev KA

	Table 2-2. Device Dashboard Fast Key Sequence

	Function	4–20 mA HART

	Alarm and saturation levels	1, 7,	5
	Analog output alarm type	1, 7,	5
	Burst mode control	2, 2, 4, 1
	Burst option	2, 2, 4, 2
	Custom display configuration	2, 2,	3
	Damping	2, 2, 1, 2
	Date	2, 2, 6, 1, 4
	Descriptor	2, 2, 6, 1, 5
	Digital to analog trim (4 - 20 mA output)	3, 4, 2
	Disable zero and span adjustment	2, 2, 5, 2
	Field device information	2, 2, 6
	Loop test	3, 5, 1
	Lower sensor trim	3, 4, 1, 2
	Message	2, 2, 6, 1, 6
	Poll address	2, 2, 4, 3
	Range values	1, 5
	Rerange with keypad	1, 5
	Scaled D/A trim (4–20 mA output)	3, 4, 2
	Sensor temperature/trend	3, 3, 2
	Tag	2, 2, 6, 1, 1
	Transfer function	2, 2, 1, 3
	Transmitter security (write protect)	2, 2, 5, 1
	Units	2, 2, 1, 1
	Upper sensor trim	3, 4, 1, 1
	Zero trim	3, 4, 1, 3

2.8Check output

Before performing other transmitter on-line operations, review the digital output parameters to ensure that the transmitter is operating properly and is configured to the appropriate process variables.

14	Configuration

Reference Manual		Configuration
00809-0100-4001, Rev KA		May 2017

2.8.1Process variables

The process variables for the Rosemount 3051 provide transmitter output, and are continuously updated. The pressure reading in both engineering units and percent of range will continue to track with pressures outside of the defined range from the lower to the upper range limit of the sensor module.

Field Communicator

Traditional 4–20 mA Fast Keys	1, 1

Traditional 1–5 Vdc Fast Keys	1, 1

Device Dashboard Fast Keys	3, 2

The process variable menu displays the following process variables:

Pressure

Percent of range

Analog output

AMS Device Manager

Right click on the device and select Process Variables... from the menu.The Process Variable screen displays the following process variables:

Pressure

Percent of range

Analog output

2.8.2Sensor temperature

The Rosemount 3051 contains a temperature sensor near the pressure sensor in the sensor module. When reading this temperature, keep in mind the sensor is not a process temperature reading.

Field Communicator

Traditional 4–20 mA Fast Keys	1, 1, 4

Traditional 1–5 Vdc Fast Keys	1, 1, 4

Device Dashboard Fast Keys	3, 2, 4

Enter the Fast Key sequence “Sensor Temperature” to view the sensor temperature reading.

AMS Device Manager

Right click on the device and select Process Variables... from the menu. Snsr Temp is the sensor temperature reading.

2.9Basic setup

2.9.1Set process variable units

The PV Unit command sets the process variable units to allow you to monitor your process using the appropriate units of measure.

Configuration

Configuration	Reference Manual
May 2017	00809-0100-4001, Rev KA

Field Communicator

Traditional 4–20 mA Fast Keys	1, 3, 2

Traditional 1–5 Vdc Fast Keys	1, 3, 2

Device Dashboard Fast Keys	2, 2, 1, 1

Enter the Fast Key sequence “Set Process Variable Units.” Select from the following engineering units:

	inH2O		bar		torr
	inHg		mbar		atm
	ftH2O		g/cm2	 inH2O at 4 °C
	mmH2O		kg/cm2	 mmH2O at 4 °C
	mmHg		Pa
	psi		kPa

AMS Device Manager

Right click on the device and select Configure from the menu. In the Basic Setup tab, select Unit from the drop down menu to select units.

2.9.2Set output (transfer function)

The Rosemount 3051 has two output settings: linear and square root. Activate the square root output option to make analog output proportional to flow. As input approaches zero, the Rosemount 3051 automatically switches to linear output in order to ensure a more smooth, stable output near zero (see Figure 2-10).

For 4–20 mA HART output, the slope of the curve is unity (y = x) from 0 to 0.6 percent of the ranged pressure input. This allows accurate calibration near zero. Greater slopes would cause large changes in output (for small changes at input). From 0.6 to 0.8 percent, curve slope equals 42 (y = 42x) to achieve continuous transition from linear to square root at the transition point.

Field Communicator

Traditional 4–20 mA Fast Keys	1, 3, 5

Traditional 1–5 Vdc Fast Keys	1, 3, 5

Device Dashboard Fast Keys	2, 2, 1, 3

AMS Device Manager

1.Riht click on the device and select Configure from the menu.

2.In the Basic Setup tab, use Xfer fnctn drop down menu to select output, click Apply.

3.After carefully reading the warning provided, select yes.

16	Configuration

Reference Manual		Configuration
00809-0100-4001, Rev KA		May 2017


	Figure 2-10. 4-20 mA HART Square Root Output Transition Point

Full Scale

Output

Flow (%)

Sq. Root Curve

(mA dc)

Transition Point

Slope=42

Slope=1

Sq. Root

Curve

Transition Point

Linear Section

Note

For a flow turndown of greater than 10:1 it is not recommended to perform a square root extraction in the transmitter. Instead, perform the square root extraction in the system.

2.9.3Rerange

The Range Values command sets each of the lower and upper range analog values (4 and 20 mA points and 1 and 5 Vdc points) to a pressure. The lower range point represents 0 percent of range and the upper range point represents 100 percent of range. In practice, the transmitter range values may be changed as often as necessary to reflect changing process requirements. For a complete listing of range & sensor limits, refer to “Range and sensor limits” on page 93.

Note

Transmitters are shipped from Emerson™ fully calibrated per request or by the factory default of full scale (zero to upper range limit).

Note

Regardless of the range points, the Rosemount 3051 will measure and report all readings within the digital limits of the sensor. For example, if the 4 and 20 mA points are set to 0 and 10 inH2O, and the transmitter detects a pressure of 25 inH2O, it digitally outputs the 25 inH2O reading and a 250% of range reading.

Select from one of the methods below to rerange the transmitter. Each method is unique; examine all options closely before deciding which method works best for your process.

Rerange with a Field Communicator or AMS Device Manager only.

Rerange with a pressure input source and a Field Communicator or AMS Device Manager.

Rerange with a pressure input source and the local zero and span buttons (option D4).

Configuration

Configuration	Reference Manual
May 2017	00809-0100-4001, Rev KA

Note

If the transmitter security switch is ON, adjustments to the zero and span will not be able to be made. Refer to “Configure security and alarm” on page 44 for security information.

Rerange with a Field Communicator or AMS Device Manager only.

The easiest and most popular way to rerange is to use the Field Communicator only. This method changes the range values of the analog 4 and 20 mA points (1 and 5 Vdc points) independently without a pressure input. This means that when you change either the 4 or 20 mA setting, you also change the span.

An example for the 4–20 mA HART output:

If the transmitter is ranged so that

4 mA = 0 inH2O, and

20 mA = 100 inH2O,

and you change the 4 mA setting to 50 inH2O using the communicator only, the new settings are:

4 mA = 50 inH2O, and

20 mA = 100 inH2O.

Note that the span was also changed from 100 inH2O to 50 inH2O, while the 20 mA setpoint remained at 100 inH2O.

To obtain reverse output, simply set the 4 mA point at a greater numerical value than the 20 mA point. Using the above example, setting the 4 mA point at 100 inH2O and the 20 mA point at

0 inH2O will result in reverse output.

Field Communicator

Traditional 4-20 mA Fast Keys	1, 2, 3, 1

Traditional 1-5 Vdc Fast Keys	1, 2, 3, 1

Device Dashboard Fast Keys	2, 2, 2, 1

From the HOME screen, enter the Fast Key sequence “Rerange with a Communicator Only.”

AMS Device Manager

Right click on the device and select Configure from the menu. In the Basic Setup tab, locate the Analog Output box and perform the following procedure:

1.Enter the lower range value (LRV) and the upper range value (URV) in the fields provided. Select

Apply.

2.After carefully reading the warning provided, select yes.

Rerange with a pressure input source and a Field Communicator or AMS Device Manager

Reranging using the Field Communicator and applied pressure is a way of reranging the transmitter when specific 4 and 20 mA points (1 and 5 Vdc points) are not calculated.

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Reference Manual		Configuration
00809-0100-4001, Rev KA		May 2017

Note

The span is maintained when the 4 mA point (1 Vdc point) is set. The span changes when the 20 mA point (5 Vdc point) is set. If the lower range point is set to a value that causes the upper range point to exceed the sensor limit, the upper range point is automatically set to the sensor limit, and the span is adjusted accordingly.

Field Communicator

Traditional 4–20 mA Fast Keys	1, 2, 3, 1, 2

Traditional 1–5 Vdc Fast Keys	1, 2, 3, 1, 2

Device Dashboard Fast Keys	2, 2, 2, 8

From the HOME screen, enter the Fast Key sequence Rerange with a pressure input source and a Field Communicator or AMS Device Manager .

AMS Device Manager

1.Right click on the device, select Calibrate, then Apply values from the menu.

2.Select Next after the control loop is set to manual.

3.From the Apply Values menu, follow the on-line instructions to configure lower and upper range values.

4.Select Exit to leave the Apply Values screen.

5.Select Next to acknowledge the loop can be returned to automatic control.

6.Select Finish to acknowledge the method is complete.

Rerange with a pressure input source and the local zero and span buttons (option D4)

Reranging using the local zero and span adjustments (see Figure 2-11 on page 20) and a pressure source is a way of reranging the transmitter when specific 4 and 20 mA (1 and 5 Vdc) points are not known and a communicator is not available.

Note

When you set the 4 mA (1 Vdc) point the span is maintained; when you set the 20 mA (5 Vdc) point the span changes. If you set the lower range point to a value that causes the upper range point to exceed the sensor limit, the upper range point is automatically set to the sensor limit, and the span is adjusted accordingly.

To rerange the transmitter using the span and zero buttons, perform the following procedure:

1.Loosen the screw holding the certifications label on the top of the transmitter housing. Slide the label to expose the zero and span buttons. See Figure 2-11.

2.Apply the desired 4 mA (1 Vdc) pressure value to the transmitter. Push and hold the zero adjustment button for at least two seconds but no longer than 10 seconds.

3.Apply the desired 20 mA (5 Vdc) pressure value to the transmitter. Push and hold the span adjustment button for at least two seconds but no longer than 10 seconds.

Configuration

Configuration	Reference Manual
May 2017	00809-0100-4001, Rev KA

Figure 2-11. Zero and Span Button

A. Span and zero adjustment buttons

Note

2.9.4Damping

The “Damp” command introduces a delay in the micro-processing which increases the response time of the transmitter; smoothing variations in output readings caused by rapid input changes. Determine the appropriate damping setting based on the necessary response time, signal stability, and other requirements of the loop dynamics within your system. The default damping value is 0.4 seconds and it can be set to any of ten pre-configured damping values between 0 and 25.6 seconds. See list below.

	0.00 second		0.05 second		0.10 second
	0.20 second		0.40 second		0.80 second
	1.60 seconds		3.20 seconds		6.40 seconds
	12.8 seconds		25.6 seconds

The current damping value can be determined by executing the Field Communicator Fast Keys or going to Configure in AMS Device Manager.

Field Communicator

Traditional 4–20 mA Fast Keys	1, 3, 6

Traditional 1–5 Vdc Fast Keys	1, 3, 6

Device Dashboard Fast Keys	2, 2, 1, 2

AMS Device Manager

1.Right click on the device and select Configure from the menu.

2.In the Basic Setup tab, enter the damping value in the Damp field, select Apply.

3.After carefully reading the warning provided, select yes.

20	Configuration

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