Emerson Rosemount 2051HT Manuale utente

Quick Start Guide

00825-0100-4591, Rev BA

March 2018

Rosemount™2051HT Hygienic Pressure

Transmitter

with 4–20 mA HART®Revision 5 and 7 Protocol

Note

Before installing the transmitter, confirm the correct device driver is loaded on the host

systems. See page 3 for system readiness.

March 2018

Quick Start Guide

NOTICE

This guide provides basic guidelines for the Rosemount 2051HT Transmitter. It does not provide instructions

for configuration, diagnostics, maintenance, service, troubleshooting, Explosion-proof, Flameproof, or

intrinsically safe (I.S.) installations.

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.

Before connecting a HART®-based communicator in an explosive atmosphere, make sure the instruments in

the loop are installed in accordance with intrinsically safe or non-incendive field wiring practices.

Process leaks may cause harm or result in death.

To avoid process leaks, only use the gasket designed to seal with the corresponding flange adapter.

Electrical shock can result in death or serious injury.

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

shock.

Conduit/cable entries

Aluminum housings: Unless marked, the conduit/cable entries in the transmitter housing use a 1/2–14 NPT

thread form.

Stainless steel (SST) housings: conduit/cable entries can be determined by crossing referencing the model

string printed on the transmitter with the ordering table listed in the Product Data Sheet. Conduit type is

not cast into the transmitter housing to minimize surface irregularities.

Only use plugs, adapters, glands, or conduit with a compatible thread form when closing these entries.

Contents

System readiness . . . . . . . . . . . . . . . . . . . . . . . . . 3

Transmitter installation . . . . . . . . . . . . . . . . . . . 3

Mount the transmitter . . . . . . . . . . . . . . . . . . . . 3

Set the switches . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Connect the wiring and power up . . . . . . . . . . 6

Verify configuration . . . . . . . . . . . . . . . . . . . . . . 8

Trim the transmitter . . . . . . . . . . . . . . . . . . . . . 11

Product certifications . . . . . . . . . . . . . . . . . . . . 14

Quick Start Guide

March 2018

1.0 System readiness

1.1 Confirm HART Revision capability

If using HART based control or asset management systems, confirm the

HART capability of those systems prior to transmitter installation. Not all

systems are capable of communicating with HART Revision 7 protocol. This

transmitter can be configured for either HART Revision 5 or 7.

For instructions on how to change the HART Revision of your transmitter, see

page 11.

1.2 Confirm correct device driver

Verify the latest device driver (DD/DTM™) is loaded on your systems to

ensure proper communications.

Download the latest device driver at Emerson.com or FieldCommGroup.org.

Rosemount 2051 device revisions and drivers

Table 1 provides the information necessary to ensure you have the correct

device driver and documentation for your device.

2.0 Transmitter installation

2.1 Mount the transmitter

Orient the transmitter to desired orientation before mounting. Transmitter

must not be securely mounted or clamped in place when changing transmitter

orientation.

Conduit entry orientation

When installing a Rosemount 2051HT, it is recommended installing so the

conduit entry faces downward towards the ground to maximize drain ability

when cleaning.

Table 1. Rosemount 2051 Device Revisions and Files

Identify device Find device driver Review

instruction

Review

functionality

Software

release

date

NAMUR

software

revision(1)

1. NAMUR software revision is located on the hardware tag of the device. In accordance with NE53,

revisions of the least significant level X (of 1.0.X) do not change functionality or operation of the

device and will bot be reflected in this device revision history.

HART

software

revision(2)

2. HART software revision can be read using a HART capable configuration tool.

HART

universal

revision

Device

revision

Reference

manual

Changes to

software

Dec-11 1.0.0 01

710 Rosemount

2051

Pressure

Transmitter

Reference

Manual

N/A

5 9

March 2018

Quick Start Guide

Environmental seal for housing

Thread sealing (PTFE) tape or paste on male threads of conduit is required to

provide a water/dust tight conduit seal and meets requirements of NEMA®Type

4X, IP66, IP68, and IP69K. Consult factory if other Ingress Protection ratings are

required.

For M20 threads, install conduit plugs to full thread engagement or until

mechanical resistance is met.

Note

IP69K rating only available on units with a SST housing and option code V9 in the model

string.

Note

For aluminum housings ordered with M20 conduit entries, transmitters shipped will have

1/2NPT threads machined into the housing and a 1/2NPT to M20 thread adapter will be

provided. Considerations for environmental sealing listed above should be taken into

account when installing the thread adapter.

In-line gage transmitter orientation

The low side pressure port (atmospheric reference) on the in-line gage

transmitter is located on the neck of the transmitter via a protected gage vent

(See Figure 1).

Keep the vent path free from obstructions including but not limited to paint,

dust, and viscous fluids by mounting the transmitter so the process can drain

away.

Recommended installations have a conduit entry facing the ground so the gage

vent is pointing parallel to the ground.

Figure 1. In-line Protected Gage Vent Low Side Pressure Port

A. Low side pressure port (atmospheric reference)

Aluminum Polished 316 SST

Quick Start Guide

March 2018

Clamping

When installing clamp, follow recommended torque values provided by gasket

manufacturer.(1)

2.2 Set the switches

Set alarm and security switch configuration before installation as shown in

Figure 2.

The alarm switch sets the analog output alarm to high or low.

- Default alarm is high.

The security switch allows (unlocked symbol) or prevents (locked symbol)

any configuration of the transmitter.

- Default security is off (unlocked symbol).

Use the following procedure to change the switch configuration:

1. If the transmitter is installed, secure the loop and remove power.

2. Remove the housing cover opposite the field terminal side. Do not remove

the instrument cover in explosive atmospheres when the circuit is live.

3. Slide the security and alarm switches into the preferred position using a small

screwdriver.

4. Reattach the transmitter cover. It is recommended that the cover be

tightened until there is no gap between the cover and the housing.

The covers must only be capable of being released or removed with the aid

of a tool to comply with applicable ordinary locations requirements.

Figure 2. Transmitter Electronics Board

A. Alarm

B. Security

1. To maintain transmitter performance, torquing a 1.5-in. Tri-Clamp beyond 50 in-lb is not recommended on pressure

ranges below 20 psi.

Without LCD display With LOI or LCD display

Aluminum

Polished 316 SST

March 2018

Quick Start Guide

2.3 Connect the wiring and power up

Figure 3. Transmitter Wiring Diagrams (4–20 mA)

A. 24 Vdc supply

B. RL ≥250

C. Current meter (optional)

Shielded twisted pair cable should be used for best results. Use 24 AWG or larger

wire that does not exceed 5,000 ft. (1500 m) in length. If applicable, install

wiring with a drip loop. Arrange the drip loop so the bottom is lower than the

conduit connections and the transmitter housing.

Aluminum

Polished 316 SST

Quick Start Guide

March 2018

Use the following steps to wire the transmitter:

1. Remove the housing cover on the FIELD TERMINALS side.

2. Connect the positive lead to the “+” terminal (PWR/COMM) and the negative

lead to the “–” terminal.

3. Ensure full contact with Terminal Block screw and washer. When using a

direct wiring method, wrap wire clockwise to ensure it is in place when

tightening the terminal block screw.

Note

The use of a pin or a ferrule wire terminal is not recommended as the connection may be

more susceptible to loosening over time or under vibration

4. Ground housing to fulfill local grounding regulations.

5. Ensure proper grounding. It is important the instrument cable shield be:

Trimmed close and insulated from touching the transmitter housing

Connected to the next shield if cable is routed through a junction box

Connected to a good earth ground at the power supply end

6. If transient protection is needed, refer to section “Grounding for transient

terminal block ” for grounding instructions.

7. Plug and seal unused conduit connections.

8. Reattach the transmitter covers. It is recommended that the cover be

tightened until there is no gap between the cover and the housing.

The covers must only be capable of being released or removed with the aid of

a tool to comply with applicable ordinary locations requirements.

Installation of the transient protection terminal block does not provide transient protection unless the

Rosemount 2051HT case is properly grounded.

Do not run signal wiring in conduit or open trays with power wiring, or near heavy electrical equipment.

Do not connect the powered signal wiring to the test terminals. Power could damage the test diode in the

terminal block.

March 2018

Quick Start Guide

Figure 4. Wiring

Grounding for transient terminal block

Ground termination is provided on the outside of the electronics housing and

inside the terminal compartment. These grounds are used when the transient

protection terminal blocks are installed. It is recommended that 18 AWG or

larger wire is used to connect housing ground to earth ground (internal or

external).

If the transmitter is currently not wired for power up and communication, follow

Connect the wiring and power up ,step 1through 8. When the transmitter is

properly wired, refer to Figure 4 for internal and external transient grounding

locations.

Note

The Rosemount 2051HT polished 316 SST housing only provides ground termination

inside the terminal compartment.

2.4 Verify configuration

Verify the configuration using any HART capable configuration tool or Local

Operator Interface (LOI) - option code M4. Configuration instructions for a Field

Communicator and LOI are included in this step.

Verifying configuration with a Field Communicator

A Rosemount 2051 DD must be installed on the Field Communicator to verify

configuration. Fast Key sequences for the latest DD are shown in Table 2 on

page 9. For Fast Key sequences using legacy DD's, contact your local Emerson™

representative.

Aluminum Polished 316 SST

A. Minimize distance

B. Trim shield and insulate

C. Protective grounding terminal

D. Insulate shield

E. Connect shield back to the power supply ground

Quick Start Guide

March 2018

Note

Emerson recommends installing the latest DD to access the complete functionality. Visit

Emerson.com/Field-Communicator for information on updating the DD Library.

1. Verify device configuration using the Fast Key sequences in Table 2.

A check () indicates the basic configuration parameters. At minimum,

these parameters should be verified as part of configuration and startup.

Table 2. Device Revision 9 and 10 (HART7), DD Revision 1 Fast Key Sequence

Function Fast Key sequence

HART 7 HART 5

Alarm and Saturation Levels 2, 2, 2, 5, 7 2, 2, 2, 5, 7

Damping 2, 2, 1, 1, 5 2, 2, 1, 1, 5

Range Values 2, 2, 2 2, 2, 2

Tag 2, 2, 7, 1, 1 2, 2, 7, 1, 1

Transfer Function 2, 2, 1, 1, 6 2, 2, 1, 1, 6

Units 2, 2, 1, 1, 4 2, 2, 1, 1, 4

Burst Mode 2, 2, 5, 3 2, 2, 5, 3

Custom Display Configuration 2, 2, 4 2, 2, 4

Date 2, 2, 7, 1, 4 2, 2, 7, 1, 3

Descriptor 2, 2, 7, 1, 5 2, 2, 7, 1, 4

Digital to Analog Trim (4–20 mA output) 3, 4, 2 3, 4, 2

Disable Configuration Buttons 2, 2, 6, 3 2, 2, 6, 3

Rerange with Keypad 2, 2, 2, 1 2, 2, 2, 1

Loop Test 3, 5, 1 3, 5, 1

Lower Sensor Trim 3, 4, 1, 2 3, 4, 1, 2

Message 2, 2, 7, 1, 6 2, 2, 7, 1, 5

Scaled D/A Trim (4–20 mA output) 3, 4, 2 3, 4, 2

Sensor Temperature/Trend 3, 3, 2 3, 3, 2

Upper Sensor Trim 3, 4, 1, 1 3, 4, 1, 1

Digital Zero Trim 3, 4, 1, 3 3, 4, 1, 3

Password 2, 2, 6, 5 2, 2, 6, 4

Scaled Variable 3, 2, 2 3, 2, 2

HART Revision 5 to HART Revision 7 switch 2, 2, 5, 2, 3 2, 2, 5, 2, 3

Long Tag(1)

1. Only available in HART Revision 7 mode.

2, 2, 7, 1, 2 N/A

Find Device13, 4, 5 N/A

Simulate Digital Signal13, 4, 5 N/A

March 2018

Quick Start Guide

Verifying configuration with LOI

The optional LOI can be used for commissioning the device. The LOI is a

two-button design with internal and external/rear buttons. On a polished

stainless steel housing, buttons are located internally both on the display and

terminal side of the transmitter. On an aluminum housing, buttons are located

on the display and externally underneath the top metal tag. To activate the LOI,

push any button. LOI button functionality is shown on the bottom corners of the

display. See Table 3 and Figure 5 for button operation and menu information.

Figure 5. LOI Menu

Table 3. LOI Button Operation

Button

Left No SCROLL

Right Yes ENTER

Assign PV

HART Revision

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