Emerson Rosemount 752 Manuel utilisateur
Quick Start Guide
00825-0100-4377, Rev EB
February 2019
Rosemount™ 752 Remote Indicator
with FOUNDATION™ Fieldbus Protocol
Safety messages
CAUTION
This guide provides basic guidelines for Rosemount™ 752 Remote Indicator. It does not provide
instructions for configuration, diagnostics, maintenance, service, troubleshooting, Explosion-proof,
Flameproof, or intrinsically safe (I.S.) installations. Refer to the Rosemount 752 Reference Manual for
more instruction. Thismanual is also available electronically on Emerson.com/Rosemount.
WARNING
Explosions could result in death or serious injury.
Installation of this indicator in an explosive environment must be in accordance with the appropriate
local, national, and international standards, codes, and practices. Review the Product Certifications
section for any restrictions associated with a safe installation.
•Before connecting a communicator in an explosive atmosphere, make sure the instruments in the
segment are installed in accordance with intrinsically safe or non-incendive field wiring practices.
•In an explosion-proof/flameproof installation, do not remove the indicator cover when power is
applied to the unit.
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.
Conduit/cables entries
•Unless marked, the conduit/cable entries in the transmitter housing use a ½–14 NPT thread form.
Entries marked “M20” are M20 × 1.5 thread form. On devices with multiple conduit entries, all
entries will have the same thread form. Only use plugs, adapters, glands, or conduit with a
compatible thread form when closing these entries.
•When installing in a hazardous location, use only appropriately listed or Ex certified plugs, glands,
or adapters in cable/conduit entries.
Contents
Wiring connection......................................... 3
Configure the transducer block......................7
Product Certification......................................9
Declaration of Conformity............................16
China RoHS.................................................. 19
Quick Start Guide February 2019
2 Rosemount 752
1 Wiring connection
1.1 Wiring for FOUNDATION Fieldbus protocol
1. Remove the housing cover on terminal compartment side.
Note
Do not remove the cover in explosive atmospheres when the circuit is
live. Signal wiring supplies all power to the indicator.
2. Connect the power leads to the terminals marked “FIELDBUS WIRING”
as shown in Figure 1-1.
Note
The power terminals are not polarity sensitive.
3. Plug and seal unused conduit connections on the indicator housing to
avoid moisture accumulation in the terminal side.
a. If you do not seal unused connections, mount the indicator
with the electrical housing positioned downward for drainage.
b. Install wiring with a drip loop.
c. Arrange the drip loop so the bottom is lower than the conduit
connections and the indicator housing.
Note
Do not apply high voltage (e.g. ac line voltage) to the indicator terminals.
Abnormally high voltage can damage the unit. Indicator terminals are rated to
32 Vdc.
Figure 1-1: Fieldbus Terminal Block
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Quick Start Guide 3
Electrical considerations
Proper electrical installation is necessary to prevent errors due to improper
grounding and electrical noise. Shielded, twisted pair cable should be used for
best results in electrically noisy environments. Cable Type A is recommended
by FOUNDATION Fieldbus.
Power supply
The indicator requires between 9 and 32 Vdc (9 and 15 Vdc for FISCO) to
operate and provide complete functionality. The dc power supply should
provide power with less than two percent ripple.
Power conditioner
A Fieldbus segment requires a power conditioner to isolate the power supply,
filter, and decouple the segment from other segments attached to the same
power supply.
Grounding
Signal wiring of the Fieldbus segment cannot be grounded. Grounding out
one of the signal wires will shut down the entire FOUNDATION Fieldbus
segment.
Shield wire ground
To protect the Fieldbus segment from noise, grounding techniques for shield
wire usually require a single grounding point for shield wire to avoid creating a
ground loop. The ground point is typically at the power supply.
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4 Rosemount 752
Figure 1-2: FOUNDATION Fieldbus Indicator Field Wiring
G
H
FF
E
A
B
C
D
Power
supply
FOUNDATION
Fieldbus
configuration
tool
Intrinsically safe installations may allow fewer devices per I.S. barrier due to
current limitations.
A. Integrated power conditioner and filter
B. 6234 ft. (1900 m) max (depending upon cable characteristics)
C. Terminators
D. Fieldbus segment
E. Trunk(1)
F. Spur
G. Signal wiring
H. Fieldbus devices on segment
Surges/transients
The indicator will withstand electrical transients of the energy level usually
encountered in static discharges or induced switching transients. However,
high-energy transients, such as those induced in wiring from nearby lightning
strikes, can damage the indicator.
(1) The power supply, filter, first terminator, and configuration tool are typically located
in the control room.
February 2019 Quick Start Guide
Quick Start Guide 5
Optional transient protection terminal block
The transient protection terminal block can be ordered as an installed option
(option code T1 in the indicator model number) or as a spare part. The spare
part number is 03151-4131-0002. The lightning bolt symbol shown identifies
it as a transient protection terminal block.
Note
The Fieldbus physical layer specification requires indicator communication
during extreme operating conditions of 250 Vrms common mode signal. The
transient terminal block was designed to limit common mode voltages to 90
V and cannot be used in these extreme operating conditions.
1.2 Grounding the indicator case
Always ground the indicator case in accordance with national and local
electrical codes. The most effective indicator case grounding method is a
direct connection to earth ground with minimal impedance. Methods for
grounding the indicator case include:
Internal ground connection
The internal ground connection screw is inside the terminal side of the
electronics housing. The screw is identified by a ground symbol ( ), and is
standard on the Rosemount 752 Remote Indicators.
External ground assembly
Ground screw is located at the bottom of the mounting bracket.
Note
Grounding the indicator case using the threaded conduit connection may not
provide a sufficient ground. The transient protection terminal block (option
code T1) will not provide transient protection unless the indicator case is
properly grounded. Use the above guidelines to ground the indicator case. Do
not run transient protection ground wire with signal wiring; the ground wire
may carry excessive current if a lightning strike occurs.
Quick Start Guide February 2019
6 Rosemount 752
2 Configure the transducer block
The LCD display transducer block can be configured to sequence eight
different process variables. If a function block is scheduled in the Rosemount
752 that links a process variable from another device on the segment, that
process variable can be displayed on the LCD display.
To configure the Rosemount 752 Fieldbus Indicator use any FOUNDATION
Fieldbus configuration tool to modify the configuration parameters for each
value that is to be displayed.
2.1 Configuration parameters
Note
Some host systems may ask for the device's capability level during
commissioning. If prompted, the correct value to enter for the Rosemount
752 is 1.
DISPLAY_PARAM_SEL
The DISPLAY_PARAM_SEL parameter specifies how many process variables
willbe displayed. Select up to eight display parameters.
BLK_TAG_#
Enter the Block Tag of the function block that contains the parameter to be
displayed. The default function block tags from the factory are:
•PID_1200_XXXX
•ISEL_1300_XXXX
•CHAR_1400_XXXX
•ARITH_1500_XXXX
•INTEG_1600_XXXX
Note
XXXX represents the last four digits of the device ID.
BLK_TYPE_#
Enter the Block Type of the function block that contains the parameter to be
displayed. (e.g. ISEL PID, etc.)
PARAM_INDEX_#
Choose the parameter to be displayed.
February 2019 Quick Start Guide
Quick Start Guide 7
CUSTOM_TAG_#
The CUSTOM_TAG_# is an optional user-specified tag identifier that can be
configured to be displayed with the parameter in place of the block tag. Enter
a tag of up to five characters.
UNITS_TYPE_#
The UNITS_TYPE_# parameter is generally selected via a drop-down menu
with three options: AUTO, CUSTOM, or NONE. Select CUSTOM and be sure to
configure the CUSTOM_UNITS_# parameter. Select NONE if the parameter is
to be displayed without associated units.
CUSTOM_UNITS_#
Specify custom units to be displayed with the parameter. Enter up to six
characters. To display Custom Units the UNITS_TYPE_# must be set to
CUSTOM.
Note
_# represents the specified parameter number.
Quick Start Guide February 2019
8 Rosemount 752
3 Product Certification
Rev 1.16
3.1 European Directive Information
A copy of the EU Declaration of Conformity can be found at the end of the
Quick Start Guide. The most recent revision of the EU Declaration of
Conformity can be found at Emerson.com/Rosemount.
3.2 Ordinary Location Certification
As standard, the transmitter has been examined and tested to determine that
the design meets the basic electrical, mechanical, and fire protection
requirements by a nationally recognized test laboratory (NRTL) as accredited
by the Federal Occupational Safety and Health Administration (OSHA).
3.3 North America
The US National Electrical Code® (NEC) and the Canadian Electrical Code (CEC)
permit the use of Division marked equipment in Zones and Zone marked
equipment in Divisions. The markings must be suitable for the area
classification, gas, and temperature class. This information is clearly defined in
the respective codes.
3.4 USA
E5 FM Explosion-proof and Dust-Ignition proof
Certificate: FM16US0090
Standards: FM 3600:2011, FM 3615:2006, FM 3616:2011, FM 3810:2005,
ANSI/NEMA®-250:2003
Markings: XP CL I, DIV 1, GP B, C, D T5; DIP CL II DIV 1 GP E, F, G; CL III; (–
20 °C ≤ Ta ≤ 80 °C); Seal not required; Type 4X
I5/IE FM Intrinsically Safe, Division 2/FISCO Intrinsically Safe
Certificate: FM17US0348X
Standards: FM 3600:2018, FM 3610:2018, FM 3611:2004, FM 3810:2005,
ANSI/NEMA 250:2003, ANSI/ISA-60079-0:2013, ANSI/
ISA-60079-11:2014, ANSI/ISA 61010-1:2004
Markings: IS CL I, II, III, DIV 1, GP A, B, C, D, E, F, G T4; IS CL I, ZONE 0, AEx
ia IIC T4; (–20 °C ≤ Ta ≤ 60 °C); NI CL I, DIV 2, GP A, B, C, D T4; (–
20 °C ≤ Ta ≤ 60 °C); Install per 00752-1010; Type 4X FISCO Field
Device; IS CL I, II, III, DIV 1, GP A, B, C, D, E, F, G T4; IS CL I, ZONE
February 2019 Quick Start Guide
Quick Start Guide 9
0, AEx ia IIC T4; (–20 °C ≤ Ta ≤ 60 °C); Install per 00752-1010;
Type 4X
3.5 Canada
E6 CSA Explosion-proof and Dust-Ignition proof, Division 2
Certificate: 1563767
Standards: CSA C22.2 No. 25-1966, CSA C22.2 No. 30-M1986, CAN/CSA
C22.2 No. 94-M91, CSA C22.2 No. 142-M1987, CAN/CSA
C22.2 No. 157-92, CSA C22.2 No. 213-M1987
Markings: CL I, DIV 1, GP B, C, D; CL II, DIV 1, GP E,F,G; CL III; (–50 °C ≤ Ta ≤
80 °C); CL I, DIV 2 GP A, B, C, D T3C; (–20 °C ≤ Ta ≤ 40 °C); Seal
not required; Type 4X
I6/IF CSA Intrinsically Safe / FISCO Intrinsically Safe
Certificate: 1563767
Standards: CSA C22.2 No. 25-1966, CSA C22.2 No. 30-M1986, CAN/CSA
C22.2 No. 94-M91, CSA C22.2 No. 142-M1987, CAN/CSA
C22.2 No. 157-92, CSA C22.2 No. 213-M1987
Markings: CL I, DIV 1, GP A, B, C, D T3C (–20 °C ≤ Ta ≤ 40 °C); Install per
00752-1020; Type 4X FISCO field device; CL I, DIV 1, GP A, B, C,
D T3C (–20 °C ≤ Ta ≤ 40 °C); Install per 00752-1020; Type 4X
3.6 Europe
E1 ATEX Flameproof
Certificate: KEMA03ATEX2476X
Standards: EN 60079-0:2012+A11:2013, EN 60079-1:2014
Markings: II 2 G; Ex db IIC T6…T5 Gb, T5(–60 °C ≤ Ta ≤ 80 °C), T6(–60 °C
≤ Ta ≤ 70 °C); IP66
Special Conditions for Safe Use (X):
1. Flameproof joints are not intended for repair.
2. Non-standard paint options may cause risk from electrostatic
discharge. Avoid installations that could cause electrostatic build-up
on painted surfaces, and only clean the painted surfaces with a damp
cloth. If paint is ordered through a special option code, contact the
manufacturer for more information.
Quick Start Guide February 2019
10 Rosemount 752
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