Rosemount 2051L, 2051C Operating Manual
00809-0100-4107, Rev CA
Rosemount™ 2051 Pressure Transmitter
with HART® Revision 5 and 7 Selectable Protocol
Reference Manual
July 2017
Reference Manual
NOTICE
00809-0100-4107, Rev CA
Rosemount™ 2051 Pressure Transmitter
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 Pacific- 65 777 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.
Title Page
July 2017
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.
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Reference Manual
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Reference Manual
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Contents
1Section 1: Introduction
1.1 Using this manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Models covered . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 HART installation flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Transmitter overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Service support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.6 Product recycling/disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
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1.2.1 Rosemount 2051C Coplanar Pressure Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2.2 Rosemount 2051T in-line Pressure Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2.3 Rosemount 2051L Level Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2.4 Rosemount 2051CF Series Flowmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2Section 2: Configuration
2.1 Configuration overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Safety messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 System readiness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.1 Confirm correct Device Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 Configuration basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4.1 Configuring on the bench . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4.2 Configuration tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4.3 Setting the loop to manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.5 Verify configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.5.1 Verifying configuration with Field Communicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.5.2 Verifying configuration with AMS Device Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.5.3 Verifying configuration with LOI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2.5.4 Verifying process variables configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.6 Basic setup of the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.6.1 Setting pressure units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.6.2 Setting transmitter output (transfer function) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.6.3 Rerange the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Content s
2.6.4 Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.7 Configuring the LCD display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.8 Detailed transmitter setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.8.1 Configuring alarm and saturation levels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.8.2 Configuring Scaled Variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
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2.8.3 Re-mapping device variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.9 Performing transmitter tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.9.1 Verifying alarm level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.9.2 Performing an analog loop test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.9.3 Simulate device variables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.10 Configuring burst mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.11 Establishing multidrop communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.11.1 Changing a transmitter address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.11.2 Communicating with a multidropped transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3Section 3: Hardware Installation
3.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.2 Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.3 Installation considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.3.1 Mechanical considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.3.2 Environmental considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.4 Installation procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.4.1 Mount the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.4.2 Impulse piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.4.3 Process connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.4.4 In-line process connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.5 Rosemount 305, 306, and 304 Manifolds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
3.5.1 Rosemount 305 Integral Manifold installation procedure. . . . . . . . . . . . . . . . . . . . . . . . . . 39
3.5.2 Rosemount 306 Integral Manifold installation procedure. . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.5.3 Rosemount 304 Conventional Manifold installation procedure. . . . . . . . . . . . . . . . . . . . . 40
3.5.4 Manifold operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.6 Liquid level measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
3.6.1 Open vessels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
3.6.2 Closed vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4Section 4: Electrical Installation
4.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.2 Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.3 Local Operating Interface (LOI)/LCD display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.3.1 Rotating LOI/LCD display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4.4 Configure security and simulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4.4.1 Security switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4.4.2 HART Lock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
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4.5 Setting transmitter alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4.6 Electrical considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
5Section 5: Operation and Maintenance
5.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
5.2 Safety messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
5.3 Recommended calibration tasks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5.4 Calibration overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
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4.4.3 Configuration button lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4.4.4 LOI password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
4.6.1 Conduit installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4.6.2 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
4.6.3 Wiring the transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4.6.4 Grounding the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
5.4.1 Determining necessary sensor trims. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5.4.2 Determining calibration frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
5.4.3 Compensating for span line pressure effects (range 4 and range 5). . . . . . . . . . . . . . . . . . 65
5.5 Trim the pressure signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
5.5.1 Sensor trim overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
5.5.2 Perform a sensor trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
5.5.3 Recall factory trim–sensor trim. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
5.6 Trim the analog output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
5.6.1 Performing digital-to-analog trim (4—20 mA/1—5 V output trim). . . . . . . . . . . . . . . . . . . . 70
5.6.2 Performing digital-to-analog trim (4—20mA/1—5 V output trim) using other scale. . . . . 71
5.6.3 Recalling factory trim–analog output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
5.7 Switching HART Revision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
5.7.1 Switching HART Revision with generic menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
5.7.2 Switching HART Revision with Field Communicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
5.7.3 Switching HART Revision with AMS Device Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
5.7.4 Switching HART Revision with LOI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
6Section 6: Troubleshooting
Content s
6.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
6.2 Safety messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
6.3 Diagnostic messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
6.3.1 Diagnostic message: Failed - fix now . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
6.3.2 Diagnostic message: Maintenance - fix soon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
6.3.3 Diagnostic message: Advisory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
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6.4 Disassembly procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
6.4.1 Removing from service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
6.4.2 Removing terminal block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
6.4.3 Removing the electronics board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
6.4.4 Removing sensor module from the electronics housing . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
6.5 Reassembly procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
6.5.1 Attaching electronics board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
6.5.2 Installing terminal block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
6.5.3 Reassembling the Rosemount 2051C Process Flange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
6.5.4 Installing drain/vent valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
7Section 7: Safety Instrumented Systems Requirements
7.1 Safety Instrumented Systems (SIS) Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
7.1.1 Rosemount 2051 safety certified identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
7.1.2 Installation in SIS applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
7.1.3 Configuring in SIS applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
7.1.4 Rosemount 2051 SIS operation and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
7.1.5 Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
AAppendix A: Specifications and Reference Data
A.1 Performance specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
A.1.1 Conformance to specification (±3s [Sigma]) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
A.1.2 Reference accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
A.1.3 Flow performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
A.1.4 Dynamic performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
A.2 Functional specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
A.2.1 Range and sensor limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
A.2.2 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
A.2.3 4—20 mA (output code A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
A.2.4 HART 1—5 Vdc low power (output code M) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
A.2.5 Overpressure limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
A.2.6 Static pressure limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
A.2.7 Burst pressure limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
A.2.8 Failure mode alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
A.2.9 Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
A.2.10 Humidity limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
A.2.11 Volumetric displacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
A.2.12 Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
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A.3 Physical specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
A.4 Dimensional drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
A.5 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113
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July 2017
A.3.1 Material selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
A.3.2 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
A.3.3 Process connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
A.3.4 Rosemount 2051C process wetted parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
A.3.5 Rosemount 2051L Process wetted parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
A.3.6 Non-wetted parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
A.3.7 Shipping weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
A.5.1 Rosemount 2051C Coplanar Pressure Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113
A.5.2 Rosemount 2051T In-Line Pressure Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120
A.5.3 Rosemount 2051CF Flowmeter Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
A.5.4 Rosemount 2051L Level Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137
A.6 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142
A.7 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
BAppendix B: Product Certifications
B.1 European Directive Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149
B.2 Ordinary Location Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149
B.3 North America . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149
B.4 Europe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150
B.5 International . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151
B.6 Brazil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153
B.7 China . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153
B.8 Japan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .155
B.9 Technical Regulations Customs Union (EAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .155
B.9.1 Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
B.10 Additional Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .155
B.11 Approval drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157
CAppendix C: Field Communicator Menu Trees and Fast Keys
Content s
C.1 Field Communicator menu trees. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .179
C.2 Field Communicator Fast Keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .184
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July 2017
Reference Manual
00809-0100-4107, Rev CA
DAppendix D: Local Operator Interface
D.1 LOI Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
D.2 LOI Menu Tree - Extended Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
D.3 Number entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
D.4 Text entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Contents
Reference Manual
00809-0100-4107, Rev CA
Section 1 Introduction
1.1 Using this manual
The sections in this manual provide information on installing, operating, and maintaining the
Rosemount
Section 2: Configuration provides instruction on commissioning and operating Rosemount 2051.
Information on software functions, configuration parameters, and online variables is also included.
Section 3: Hardware Installation contains mechanical installation instructions, and field upgrade
options.
Section 4: Electrical Installation contains electrical installation instructions, and field upgrade options.
Section 5: Operation and Maintenance provides detailed information on calibrating and changing
HART
Section 6: Troubleshooting provides troubleshooting techniques for the most common operating
proble
™
2051Pressure Transmitter. The sections are organized as follows:
®
Revisions.
ms.
Introduction
July 2017
Section 7: Safety Instrumented Systems Requirements provides identification, installation,
c
onfiguration, operation and maintenance, and inspection information for Safety Instrumented
Systems.
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.
Appendix C: Field Communicator Menu Trees and Fast Keys provides full menu trees and abbreviated
F
ast Key sequences for commissioning tasks.
Appendix D: Local Operator Interface provides detailed LOI menu trees.
Introduction
1
Introduction
July 2017
1.2 Models covered
The following Rosemount 2051 are covered by this manual:
1.2.1 Rosemount 2051C Coplanar Pressure Transmitter
Measures differential and gage pressure up to 2000 psi (137,9 bar).
1.2.2 Rosemount 2051T in-line Pressure Transmitter
Measures gage/absolute pressure up to 10000 psi (689,5 bar).
1.2.3 Rosemount 2051L Level Transmitter
Measures level and specific gravity up to 300 psi (20,7 bar).
1.2.4 Rosemount 2051CF Series Flowmeter
Measures flow in line sizes from
1
/2-in. (15 mm) to 96-in. (2400 mm).
Reference Manual
00809-0100-4107, Rev CA
Note
For Rosemount 2051 with F
F
OUNDATION Fieldbus Protocol Reference Manual. For Rosemount 2051 with PROFIBUS
Rosemount 2051 Pressure Transmitter with PROFIBUS PA Protocol Reference Manual.
OUNDATION
™
Fieldbus, see Rosemount 2051 Pressure Transmitter with
®
PA, see
2
Introduction
Reference Manual
START HERE
Bench
calibration?
Field Install
No
Set Units
(page 13)
Set Range Points
(page 15)
Select Linear
Output
(page 13)
Set Damping
(page 17)
Ver ify
Apply Pressure
Yes
Within
specifications?
Yes
No
Refer to
Section 5:
Operation and
Maintenance
Configure
Security and
Alarm
(page 50)
Mount Transmitter
(page 30)
Wire Transmitter
(page 55)
Power Transmitter
(page 54)
Tri m the
Tra ns mi tt er
(page 66)
Done
Review Transmitter
Configuration
(page 11)
Confirm
Tra ns mi tt er
Configuration
(page 11)
Configure for
Pressure
Configure Scaled
Var iable
(page 22)
Set Scaled
Variable to PV
(page 22)
Configure for Level Configure for Flow
Configure Scaled
Var iable
(page 22)
Set Scaled
Variable to PV
(page 22)
Check Process
Connection
(page 37)
00809-0100-4107, Rev CA
1.3 HART installation flowchart
Figure 1-1. HART Installation Flowchart
Introduction
July 2017
Introduction
3
Introduction
July 2017
1.4 Transmitter overview
The Rosemount 2051C Coplanar™ design is offered for Differential Pressure (DP) and Gage Pressure (GP)
measurements. The Rosemount 2051C utilizes capacitance sensor technology for DP and GP
measurements. The Rosemount 2051T utilizes piezoresistive sensor technology for AP and GP
measurements.
The major components of the Rosemount 2051 are the sensor module and the electronics housing. The
sensor module contains the oil filled sensor system (isolating diaphragms, oil fill system, and sensor) and
the sensor electronics. The sensor electronics are installed within the sensor module and include a
temperature sensor, a memory module, and the analog to digital signal converter (A/D converter). The
electrical signals from the sensor module are transmitted to the output electronics in the electronics
housing. The electronics housing contains the output electronics board, the optional external
configuration buttons, and the terminal block. The basic block diagram of the Rosemount 2051CD is
illustrated in Figure 1-3 on page 5.
For the Rosemount 2051, pressure is applied to the isolating diaphragm(s). The oil deflects the sensor
which then changes its capacitance or voltage signal. This signal is then changed to a digital signal by the
Signal Processing. The microprocessor then takes the signals from the Signal Processing and calculates
the correct output of the transmitter. This signal is then sent to the D/A converter, which converts the
signal back to the analog signal, then superimposes the HART signal on the 4—20 mA output.
Reference Manual
00809-0100-4107, Rev CA
An optional LCD can be ordered that connects directly to the interface board which maintains direct
access to the signal terminals. The display indicates output and abbreviated diagnostic messages. A glass
display cover is provided. For 4—20 mA HART output, the LCD Display features a two-line display. The first
line displays the actual measured value, the second line of six characters displays the engineering units.
The LCD can also display diagnostic messages.
Note
LCD Display utilizes a 5 x 6 character display and can display output and diagnostic messages. The LOI
Display uses an 8 x 6 character display and can display output, diagnostic messages, and LOI menu
screens. The LOI Display comes with two buttons mounted on the front of the display board. See below
figure.
Figure 1-2. LOI/LCD Display
LCD Display LOI Display
4
Introduction
Reference Manual
ABC
D
Signal Processing
Tem p.
Sensor
Sensor Module
Memory
Microprocessor
• Sensor linearization
• Rerange
• Damping
• Diagnostics
• Engineering units
• Communication
Digital-to
Analog Signal
Conversion
Digital
Communication
Memory
• Configuration
00809-0100-4107, Rev CA
Figure 1-3. Block Diagram of Operation
Introduction
July 2017
1.5 Service support
A. Sensor module
B. Electronics board
C. 4—20 mA signal to control system
D. Field Communicator
Within the United States, call the Emerson Instrument and Valve Response Center using the
1-800-654-RSMT (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.
For inquiries outside of the United States, contact the nearest Emerson representative for RMA
instructions.
To expedite the return process outside of the United States, contact the nearest Emerson representative.
Individuals who handle products exposed to a hazardous substance can avoid injury if they are
informed of and understand the hazard. The product being returned will require a copy of the
required Material Safety Data Sheet (MSDS) for each substance must be included with the returned
goods.
Emerson Instrument and Valve Response Center representatives will explain the additional information
and procedures necessary to return goods exposed to hazardous substances.
Introduction
5
Introduction
July 2017
1.6 Product recycling/disposal
Recycling of equipment and packaging should be taken into consideration and disposed of in accordance
with local and national legislation/regulations.
Reference Manual
00809-0100-4107, Rev CA
6
Introduction
Reference Manual
00809-0100-4107, Rev CA
Section 2 Configuration
Configuration overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 7
Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 7
System readiness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 8
Configuration basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9
Verify configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 11
Basic setup of the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 13
Configuring the LCD display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 18
Detailed transmitter setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 19
Performing transmitter tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 24
Configuring burst mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 25
Establishing multidrop communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 26
Configuration
July 2017
2.1 Configuration overview
This section contains information on commissioning and tasks that should be performed on the bench
prior to installation, as well as tasks performed after installation as described in “Performing transmitter
tests” on page 24.
Field Communicator, AMS
perform configuration functions. For convenience, Field Communicator Fast Key sequences are labeled
“Fast Keys,” and abbreviated LOI menus are provided for each function below.
Full Field Communicator menu trees and Fast Key sequences are available in Appendix C: Field
Communicator Menu Trees and Fast Keys. LOI menu trees are available in Appendix D: Local Operator
Interface.
™
Device Manager, and Local Operator Interface (LOI) instructions are given to
2.2 Safety 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.
Config uration
7
Configuration
July 2017
Reference Manual
00809-0100-4107, Rev CA
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 the
Rosemount
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.
™
2051 reference manual for any restrictions associated with a safe installation.
2.3 System readiness
If using HART
such systems prior to commissioning and installation. Not all systems are capable of communicating
with HART Revision 7 devices.
For instructions on how to change the HART revision of your transmitter, see “Switching HART
Revision” on page 72.
2.3.1 Confirm correct Device Driver
1. Verify the latest Device Driver (DD/DTM™) is loaded on your systems to ensure proper
communications.
2. Reference Emerson.com
3. In the browse by member dropdown menu, select Rosemount business unit of Emerson
4. Select desired Product
a. Within Ta b le 2 - 1 , use the HART Universal Revision and Device Revision numbers to find the
correct Device Driver
Table 2-1. Rosemount 2051 Device Revisions and Files
Software
release date
August 2012 1.0.0 01
January 1998 N/A 178 5 3
1. NAMUR Soft ware Revision is located on the hardware tag of the device
2. HART Soft ware Revision can be read using a HART capable configuration tool.
3. Device Driver file names use Device and DD Revision, e.g. 10_01. HART Protocol is designed to enable legacy device driver revisions to
continue to communicate with new HART devices. To access new functionality, the new Device Driver must be downloaded. It is
recommended to download new Device Driver files to ensure full functionality.
8
®
based control or asset management systems, confirm the HART Protocol capability of
or FieldCommGroup.org for the latest DD.
Identify device Find Device Driver
NAMUR
software
revision
(1)
HART
software
revision
(2)
HART
universal
revision
Device
revision
7 10
5 9
instructions
Reference
(3)
Rosemount 2051
Reference Manual
Rosemount 2051
Reference Manual
Review
manual
™
.
Review
functionality
Changes to
software
(4)
N/A
Configuration
Reference Manual
A
B
00809-0100-4107, Rev CA
4. HART Revision 5 and 7 Selec table, Safety Certified, Local Operator Interface, Scaled Variable, Configurable Alarms,
Expanded Engineering Units.
2.4 Configuration basics
Set all transmitter hardware adjustments during commissioning to avoid exposing the transmitter
electronics to the plant environment after installation.
The Rosemount 2051 can be configured either before or after installation. Configuring the transmitter
on the bench using either a Field Communicator, AMS Device Manager, or LOI ensures all transmitter
components are in working order prior to installation. Verify that the security switch is set in the unlock
position ( ) in order to proceed with configuration. See Figure 4-2 on page 51 for switch location.
2.4.1 Configuring on the bench
To configure on the bench, required equipment includes a power supply, and a Field Communicator,
AMS Device Manager, or an LOI (option M4). Wire equipment as shown in figure below. To ensure
successful HART communication, a resistance of at least 250 s must be present between the
transmitter and the power supply, see “Power supply” on page 54 for details. Connect the Field
Communicator leads to the terminals labeled “COMM” on the terminal block or 1—5 V configuration,
wire as shown in Figure 2-1 on page 9. The Field communicator is connected to the terminals labeled
VOUT/COMM.
Configuration
July 2017
Figure 2-1. Wiring the Transmitter (4—20 mA HART Protocol)
A. Vdc supply
B. R
250 (necessary for HART communication only)
L
Config uration
9
Configuration
A
B
SAVE
1. Overview
2. Configure
3. Service Tools
2051 FT 45B
Online
July 2017
2.4.2 Configuration tools
Figure 2-2. Wiring the Transmitter (1—5 Vdc Low Power)
A. DC power supply
B. Voltmeter
Configuring with a Field Communicator
There are two interfaces available with the Field Communicator: Traditional and dashboard interfaces. All
steps using a Field Communicator will be described using Dashboard interfaces. Figure 2-3 on page 10
shows the Device Dashboard interface. As stated in System readiness , it is critical that the latest DD’s are
loaded into the Field Communicator. Visit Emerson.com
library.
Reference Manual
00809-0100-4107, Rev CA
or FieldCommGroup.org to download latest DD
Field Communicator menu trees and Fast Keys are available in Appendix C: Field Communicator Menu
Trees and Fast Keys.
Figure 2-3. Device Dashboard
Configuring with AMS Device Manager
Full configuration capability with AMS Device Manager requires loading the most current DD for this
device. Download the latest DD at Emerson.com
Note
All steps using AMS Device Manager will be described using version 11.5.
or FieldCommGroup.org.
10
Configuration
Reference Manual
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00809-0100-4107, Rev CA
Configuring with a LOI
The LOI requires option code M4 to be ordered. To activate the LOI push either configuration button.
Configuration buttons are located on the LCD display (must remove housing cover to access), or
underneath the top tag of the transmitter. See Ta b l e 2- 2 for configuration button functionality and
Figure 2-4 for configuration button location. When using the LOI for configuration, several features
require multiple screens for a successful configuration. Data entered will be saved on a screen-by-screen
basis; the LOI will indicate this by flashing “SAVED” on the LCD display each time.
LOI menu trees are available in Appendix D: Local Operator Interface.
Figure 2-4. LOI Configuration Buttons
A
Configuration
July 2017
A. Internal configuration buttons
B. External configuration buttons
Table 2-2. LOI Button Operation
Button
Left No SCROLL
Right Yes ENTER
2.4.3 Setting 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 control. The Field Communicator, AMS Device
Manager, or the LOI will prompt you to set the loop to manual when necessary. The prompt is only a
reminder; acknowledging this prompt does not set the loop to manual. It is necessary to set the loop to
manual control as a separate operation.
2.5 Verify configuration
Config uration
It is recommended that various configuration parameters are verified prior to installation into the
process. The various parameters are detailed out for each configuration tool. Depending on what
configuration tool(s) are available follow the steps listed relevant to each tool.
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Configuration
July 2017
2.5.1 Verifying configuration with Field Communicator
Configuration parameters listed in Ta bl e 2 - 3 are to be reviewed prior to transmitter installation. A Full list
of configuration parameters that can be reviewed and configured using a Field Communicator are
located in Appendix C: Field Communicator Menu Trees and Fast Keys.
Fast Key sequences for the latest DD are shown in Tab l e 2 -3 . For Fast Key sequences for legacy DD's
contact your local Emerson.
Table 2-3. Rosemount 2051 Device Dashboard Fast Key Sequence
From the HOME screen, enter the Fast Key sequences listed
Fast Key Sequence
Reference Manual
00809-0100-4107, Rev CA
Function
Alarm and Saturation Levels 2, 2, 2, 5 2, 2, 2, 5
Damping 2, 2, 1, 1, 5 2, 2, 1, 1, 5
Primary Variable 2, 1, 1, 4, 1 2, 1, 1, 4, 1
Range Values 2, 1, 1, 4 2, 1, 1, 4
Ta g 2, 2, 7, 1, 1 2, 2, 7, 1, 1
Tra nsfer Fu nctio n 2, 2, 1, 1, 6 2, 2, 1, 1, 6
Units 2, 2, 1, 1, 4 2, 2, 1, 1, 4
HART 7 HART 5
2.5.2 Verifying configuration with AMS Device Manager
Right click on the device and select Configuration Properties from the menu. Navigate the tabs to
review the transmitter configuration data.
2.5.3 Verifying configuration with LOI
Select any configuration button to activate the LOI. Select VIEW CONFIG to review the below
parameters. Use the configuration buttons to navigate through the menu.
reviewed prior to installation include:
Tag Primary variable
Units Range values
Transfer function Damping
Alarm and saturation
levels
The parameters to be
2.5.4 Verifying process variables configuration
This section describes how to verify that the correct process variables are selected.
Verifying process variables with a Field Communicator
From the HOME screen, enter the Fast Key sequence
Device Dashboard Fast Keys
Verifying process variables with AMS Device Manager
Right click on the device and select Overview from the menu.
1. Select the All Variables button to display the primary, secondary, tertiary and quaternary variables.
12
3, 2, 1
Configuration
Reference Manual
UNITS
PRESS UNITS
PRESS UNITS
TEMP UNITS
BACK TO MENU
EXIT MENU
PRESS UNITS
INH2O
MMHG
CMHG0C
MHG0C
PSI
PSF
ATM
TORR
PA
KPA
...
VIEW CONFIG
ZERO TRIM
UNITS
UNITS
RERANGE
LOOP TEST
DISPLAY
EXTENDED MENU
EXIT MENU
00809-0100-4107, Rev CA
2.6 Basic setup of the transmitter
This section goes through the necessary steps for basic setup of a pressure transmitter. When installing
in DP level or DP flow applications, refer to“Configuring Scaled Variable” on page 20 for setup
instructions.
2.6.1 Setting pressure units
The pressure unit command sets the unit of measure for the reported pressure.
Setting pressure units with a Field Communicator
From the HOME screen, enter the Fast Key sequence
Device Dashboard Fast Keys
Setting pressure units with AMS Device Manager
Right click on the device and select Configure.
1. Select Manual Setup and select desired units from Pressure Units dropdown menu.
Configuration
July 2017
2, 2, 1, 1, 4
2. Select Send when complete.
Setting pressure units with a LOI
Follow Figure 2-5 on page 13 to select desired pressure and temperature units. Use the SCROLL and
ENTER buttons to select desired unit. Save by selecting SAVE as indicated on the LCD display.
Figure 2-5. Selecting Units with LOI
2.6.2 Setting transmitter output (transfer function)
The Rosemount 2051 has two output settings: Linear and square root. As shown in Figure 2-7 on
page 14, activating the square root options makes analog output proportional to flow, and includes a
fixed low flow cutoff at five percent.
Config uration
However, for DP Flow and DP Level applications it is recommended to use scaled variable. Refer to
“Configuring Scaled Variable” on page 20 for setup instructions.
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Configuration
EXTENDED MENU
CALIBRAT
DAMPING
TRANSFER FUNCT
TRANSFER FUNCT
SCALED VARIAB
ASSIGN PV
TAG
ALARM SAT
VAL UES
PASSWORD
SIMLATE
HART REV
BACK TO MENU
EXIT MENU
TRANSFER FUNCT
LINEAR TRANSFER
FUNCTION
SQR ROOT TRANSFER
FUNCTION
BACK TO MENU
EXIT MENU
VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY
EXTENDED MENU
EXTENDED MENU
EXIT MENU
A
B
C
0.5 1
% Pressure Input
0
0 102030 4050 60 708090100
4 mA
20mA
% Pressure Input
B
A
4 mA
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Reference Manual
00809-0100-4107, Rev CA
Setting transmitter output with a Field Communicator
From the HOME screen, enter the Fast Key sequence
Device Dashboard Fast Keys
2, 2, 1, 1, 6
Setting transmitter output with AMS Device Manager
Right click on the device and select Configure.
1. Select Manual Setup and choose output type from analog output transfer function and select Send.
2. Carefully read the warning and select Ye s if it is safe to apply the changes.
Setting transmitter output with a LOI
Reference Figure 2-6 on page 14 to select either linear or square root transfer function using the LOI.
Figure 2-6. Set Output with LOI
14
Figure 2-7. 4—20 mA HART Square Root Output Transition Point
A. Square root curve
B. Five percent transition point
C. Four percent transition point
Configuration
Reference Manual
RERANGE
ENTER VALUES
ENTER VALUES
APPLY VALUES
BACK TO MENU
EXIT MENU
ENTER VALUES
LRV
URV
BACK TO MENU
EXIT MENU
VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
RERANGE
LOOP TEST
DISPLAY
EXTENDED MENU
EXIT MENU
00809-0100-4107, Rev CA
2.6.3 Rerange the transmitter
The Range Values command sets each of the lower and upper range analog values (4 and 20 mA/1—5 Vdc
points) to a pressure. The lower range point represents zero 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 and sensor limits,
refer to “Range and sensor limits” on page 95.
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 by manually setting range points with a Field Communicator, AMS Device Manager, or LOI.
Rerange with a pressure input source and a Field Communicator, AMS Device Manager, LOI, or local
zero and span buttons.
Manually rerange the transmitter by entering range points
Entering range points with a Field Communicator
From the HOME screen, enter the Fast Key sequence
Configuration
July 2017
Device Dashboard Fast Keys
2, 2, 2, 1
Entering range points with AMS Device Manager
Right click on the device and select Configure:
1. Select Manual Setup and select Analog Output.
2. Enter upper and lower range values in the Range Limits box and select Send.
3. Carefully read the warning and select Ye s if it is safe to apply the changes.
Entering range points with a LOI
Reference Figure 2-8 on page 15 to rerange the transmitter using the LOI. Enter values using SCROLL and
ENTER buttons.
Figure 2-8. Rerange with LOI
Config uration
Rerange the transmitter with applied pressure source
Reranging using an applied pressure source is a way of reranging the transmitter without entering
specific 4 and 20 mA (1—5 Vdc) points.
15
Configuration
RERANGE
ENTER VALUES
APPLY VALUES
APPLY VALUES
BACK TO MENU
EXIT MENU
APPLY VALUES
LRV
URV
BACK TO MENU
EXIT MENU
VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
RERANGE
LOOP TEST
DISPLAY
EXTENDED MENU
EXIT MENU
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Reference Manual
00809-0100-4107, Rev CA
Field Communicator
From the HOME screen, enter the Fast Key sequence
Device Dashboard Fast Keys
2, 2, 2, 2
Rerange with an applied pressure source using AMS Device Manager
Right click on the device, select Configure.
1. Select the Analog Output tab.
2. Select Range by Applying Pressure button and follow the screen prompts range the transmitter.
Rerange with an applied pressure source using an LOI
Use Figure 2-9 to manually rerange the device using an applied pressure source with an LOI.
Figure 2-9. Rerange with Applied Pressure Using LOI
Rerange with an applied pressure source using local zero and span buttons
If ordered, local zero and span buttons (option code D4) can be used to rerange the transmitter with an
applied pressure. Refer to Figure 2-10 on page 17 for analog zero and span button location.
To rerange the transmitter using the span and zero buttons, perform the following procedure:
1. Loosen the screw holding the top tag of the transmitter housing. Rotate the label to expose the zero
and span buttons.
2. Confirm device has local zero and span buttons by verifying blue retainer under the tag.
3. Apply transmitter pressure.
4. Rerange the transmitter.
a. To change the zero (4 mA/1 V point) while maintaining the span: press and hold zero button for at
least two seconds then release.
b. To change the span (20 mA/5 V point) while maintaining the zero point: press and hold the span
button for at least two seconds and then release.
Note
4 mA and 20 mA points must maintain the minimum span defined in Appendix A: Specifications and
Reference Data.
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Configuration
Reference Manual
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00809-0100-4107, Rev CA
Figure 2-10. Analog Zero and Span Buttons
A. Zero and span buttons
Configuration
July 2017
If the transmitter security is on, adjustments to the zero and span will not be able to be made. Refer to
“Configure security and simulation” on page 50 for security information.
The span is maintained when the 4 mA/1 V point is set. The span changes when the 20 mA/5 V 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.
Regardless of the range points, the Rosemount 2051 will measure and report all readings within the
digital limits of the sensor. For example, if the 4 and 20 mA(1—5 Vdc) points are set to 0 and 10 inH
and the transmitter detects a pressure of 25 inH
percent of range reading.
2.6.4 Damping
The damping command changes the response time of the transmitter; higher values can smooth
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 damping command utilizes floating point configuration allowing the user to
input any damping value within 0.0—60.0 seconds.
Damping with a Field Communicator
From the HOME screen, enter the Fast Key sequence
Device Dashboard Fast Keys
O, it digitally outputs the 25 inH2O reading and a 250
2
2, 2, 1, 1, 5
2
O,
Config uration
Enter desired Damping Value and select APPLY.
Damping with AMS Device Manager
Right select on the device and select Configure.
17
Configuration
EXTENDED MENU
CALIBRAT
DAMPING
DAMPING
TRANSFER FUNCT
SCALED VARIAB
ASSIGN PV
TAG
ALARM SAT VALUES
PASSWORD
SIMLATE
HART REV
BACK TO MENU
EXIT MENU
VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY
EXTENDED MENU
EXTENDED MENU
EXIT MENU
July 2017
Reference Manual
00809-0100-4107, Rev CA
1. Select Manual Setup.
2. Within the Pressure Setup box, enter desired damping value and select Send.
3. Carefully read the warning and select Ye s if it is safe to apply the changes.
Damping with a LOI
Reference Figure 2-11 to enter damping values using an LOI.
Figure 2-11. Damping with LOI
2.7 Configuring the LCD display
18
The LCD display configuration command allows customization of the LCD display to suit application
requirements. The LCD display will alternate between the selected items.
Pressure units Sensor temperature
% of range mA/Vdc output
Scaled variable
In the following instructions, the LCD display can also be configured to display configuration information
during the device startup. Select Review Parameters at Startup to enable or disable this functionality.
Reference Figure 1-2 on page 4 LCD display with LOI for image of LCD screen.
Configuring LCD Display with a Field Communicator
From the HOME screen, enter the Fast Key sequence
Device Dashboard Fast Keys
2, 2, 4
Configuring LCD display with AMS Device Manager
Right click on the device and select Configure.
1. Select Manual Setup, select the Display tab.
2. Select desired display options and select Send.
Configuring LCD display with a LOI
Refer to Figure 2-12 for LCD display configuration using a LOI.
Configuration
Reference Manual
DISPLAY
PRESS (on/off)
SCALED (on/off)
TEMP (on/off)
%RANGE (on/off)
ANALOG (on/off)
STRTUP (on/off)
BACK TO MENU
EXIT MENU
VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY
DISPLAY
EXTENDED MENU
EXIT MENU
00809-0100-4107, Rev CA
Figure 2-12. Display with LOI
2.8 Detailed transmitter setup
2.8.1 Configuring alarm and saturation levels
In normal operation, the transmitter will drive the output in response to pressure from the lower to
upper saturation points. If the pressure goes outside the sensor limits, or if the output would be beyond
the saturation points, the output will be limited to the associated saturation point.
Configuration
July 2017
Config uration
The Rosemount 2051 Transmitter automatically and continuously performs self-diagnostic routines. If
the self-diagnostic routines detect a failure, the transmitter drives the output to configured alarm and
value based on the position of the alarm switch. See “Setting transmitter alarm” on page 53.
Table 2-4. Rosemount Alarm and Saturation Values
Level 4—20 mA saturation 4—20 mA alarm
Low 3.9 mA (0.97 V) 3.75 mA (0.95 V)
High 20.8 mA (5.2 V) 21.75 mA (5.4 V)
Table 2-5. NAMUR-Compliant Alarm and Saturation Values
Level 4—20 mA saturation 4—20 mA alarm
Low 3.8 mA (0.95 V) 3.6 mA (0.9 V)
High 20.5 mA (5.125 V) 22.5 mA (5.625 V)
Table 2-6. Custom Alarm and Saturation Values
Level 4—20 mA saturation 4—20 mA alarm
Low 3.7 mA to 3.9 mA 3.6 mA to 3.8 mA
High 20.1 mA to 22.9 mA 20.2 mA to 23.0 mA
Failure mode alarm and saturation levels can be configured using a Field Communicator, AMS Device
Manager, and the LOI. The following limitations exist for custom levels:
Low alarm level must be less than the low saturation level
High alarm level must be higher than the high saturation level
Alarm and saturation levels must be separated by at least 0.1 mA
The configuration tool will provide an error message if the configuration rule is violated.
19
Configuration
EXTENDED MENU
CALIBRAT
DAMPING
TRANSFER FUNCT
SCALED VARIAB
ASSIGN PV
TAG
ALARM SAT VALUES
ALARM SAT VALUES
PASSWORD
SIMULATE
HART REV
BACK TO MENU
EXIT MENU
ALARM SAT VALUES
ROSEMOUNT VALUES
NAMUR VALUES
OTHER VALUES
BACK TO MENU
EXIT MENU
VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY
EXTENDED MENU
EXTENDED MENU
EXIT MENU
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00809-0100-4107, Rev CA
Note
Transmitters set to HART multidrop mode send all saturation and alarm information digitally; saturation
and alarm conditions will not affect the analog output. See also “Establishing multidrop
communication” on page 26.
Configuring alarm and saturation levels using a Field Communicator
From the HOME screen, enter the Fast Key sequence
Device Dashboard Fast Keys
2, 2, 2, 5
Configuring alarm and saturation levels with AMS Device Manager
Right click on the device, and select Configure.
1. Select Configure Alarm and Saturation Levels button.
2. Follow screen prompts to configure Alarm and Saturation Levels.
Configuring alarm and saturation levels using LOI
Refer to Figure 2-13 for instructions to configure alarm and saturation levels.
Figure 2-13. Configuring Alarm and Saturation with LOI
2.8.2 Configuring Scaled Variable
20
The Scaled Variable configuration allows the user to create a relationship/conversion between the
pressure units and user-defined/custom units. There are two use cases for scaled variable. The first use
case is to allow custom units to be displayed on the transmitter's LOI/LCD display. The second use case is
to allow custom units to drive the transmitter's 4—20 mA output.
If the user desires custom units to drive the 4—20 mA (1—5 Vdc) output, scaled variable must be
re-mapped as the primary variable. Refer to “Re-mapping device variables” on page 23.
Configuration
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