Rosemount 3051HT Quick Start Guide
Quick Start Guide
00825-0100-4091, Rev CA
August 2017
Rosemount™ 3051HT 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.
Quick Start Guide
August 2017
NOTICE
This guide provides basic guidelines for the Rosemount 3051HT 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.
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.
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
Unless marked, the conduit/cable entries in the transmitter housing use a
use plugs, adapters, glands, or conduit with a compatible thread form when closing these entries.
1
/2–14 NPT thread form. Only
Contents
System readiness . . . . . . . . . . . . . . . . . . . . . . . . . 3
Transmitter installation. . . . . . . . . . . . . . . . . . . . 4
Mount the transmitter. . . . . . . . . . . . . . . . . . . . . 4
Set the switches . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Connect the wiring and power up . . . . . . . . . . . 7
Verify configuration . . . . . . . . . . . . . . . . . . . . . . . 9
Trim the transmitter. . . . . . . . . . . . . . . . . . . . . . 12
Product Certifications . . . . . . . . . . . . . . . . . . . . 14
August 2017
Quick Start Guide
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
proper communications.
Download the latest device driver at Emerson.com or hartcomm.org.
Rosemount 3051 device revisions and drivers
Table 1 provides the information necessary to ensure you have the correct device
driver and documentation for your device.
Table 1. Rosemount 3051 Device Revisions and Files
Identify device Find device driver Review functionality
Software release
date
Dec-11 01
1. 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.
2. HART Revision 5 and 7 Selectab le, Power Diagnostics, Safety Certified, Local Operator Interface, Process
Alerts, Scaled Variable, Configurable Alarms, Expanded Engineering Units.
HART software
Revision
HART universal
™
) is loaded on your systems to ensure
Device
Revision
7 10
5 9
Revision
(1)
See Footnote 2 for list
Changes to
software
of changes.
(2)
3
Quick Start Guide
A
August 2017
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 3051HT, it is recommended installing so the
conduit entry faces downward or parallel to the ground to maximize drainability
when cleaning.
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
4X, IP66, IP68, and IP69K. Consult factory if other Ingress Protection ratings are
required.
Note
IP69K rating only available on units with a SST housing and option code V9 in the model string.
For M20 threads, install conduit plugs to full thread engagement or until
mechanical resistance is met.
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.
®
Type
Figure 1. In-line Protected Gage Vent Low Side Pressure Port
A. Low side pressure port (atmospheric reference)
4
Aluminum Polished 316 SST
August 2017
Quick Start Guide
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.
The covers must only be capable of being released or removed with the aid
of a tool to comply with applicable ordinary locations requirements.
The cover must be fully engaged to comply with explosion-proof
requirements.
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.
5
Quick Start Guide
A
B
Figure 2. Transmitter Electronics Board
Without LCD display With LO I or LCD displ ay
Polished 316 SST
August 2017
Aluminum
A
B
6
A. Alarm
B. Security
August 2017
A
B
C
A
B
C
2.3 Connect the wiring and power up
Figure 3. Transmitter Wiring Diagrams (4–20 mA)
Aluminum
Polished 316 SST
Quick Start Guide
A. 24 Vdc supply
B. R
≥ 250
L
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. (1,500 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.
Installation of the transient protection terminal block does not provide transient protection unless the
Rosemount 3051HT 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.
7
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