Emerson Rosemount 1152 Alphaline Reference Manual
Reference Manual
Product Discontinued
00809-0100-4235, Rev BA
April 2007
Rosemount 1152 Alphaline
Nuclear Pressure Transmitter
®
www.emersonprocess.com/rosemount/nuclear
IMPORTANT NOTICE -- ERRATA
Model 1152 Product Manual 00809-0100-4235 Rev BA (April 2007)
Affected
No.
Pages
1 6-6
2 6-6
3 6-6
Description of Change
Mounting Bracket – Carbon steel, AISI 1010 or JIS G3131 SPHC P/O with
polyurethane paint; or 316L SST.
Process Flange –CF3M (Cast version of 316L SST)
Drain/Vent Valves –316L SST
Electronics Housing – Low-copper aluminum with polyurethane paint; or austenitic
stainless steel
Effect.
Date
3/13/09
1/24/11
10/21/09
1/24/11
Reference Manual
00809-0100-4235, Rev BA
April 2007
Rosemount 1152
Rosemount 1152 Alphaline® Nuclear Pressure Transmitter
NOTICE
Read this manual before working with the product. For personal and system safety, and for
optimum product performance, make sure you thoroughly understand the contents before
installing, using, or maintaining this product.
For equipment service needs outside the United States, contact the nearest Rosemount
representative.
Within the United States, the North American Response Center is at your service 24 hours a
day, and is a single-point contact for all Rosemount equipment service needs. If at any time
you are not sure what to do, you have a question about using the product, or you have a
service or support request, call the center toll free at 1-800-654-RSMT (7768). This contact
is your fastest link to quick and complete answers about any Rosemount Group product or
service.
Alphaline, Rosemount, and the Rosemount logotype are registered trademarks of Rosemount
Inc.
␦-Cell is a trademark of Rosemount Inc.
Dow Corning and D.C. are registered trademarks of Dow Corning.
Grafoil is a trademark of Union Carbide Corp.
Loctite is a registered trademark of the Henkel KGaA Corporation.
Cover Photo: 1152-001AB
Rosemount Nuclear Instruments, Inc. satisfies all obligations coming from
legislation to harmonize product requirements in the European Union.
www.emersonprocess.com/rosemount/nuclear
Rosemount 1152
Reference Manual
00809-0100-4235, Rev BA
April 2007
Rosemount Nuclear Instruments, Inc. Warranty and Limitations of Remedy
NOTICE
Authorization for return is required from Rosemount Nuclear Instruments, Inc. prior to
shipment. Contact the Nuclear Instruments Group
(952-949-5210) for details on obtaining Return Material Authorization (RMA). Rosemount
Nuclear Instruments will not accept any returned material without a Returned Material
Authorization. Material returned without authorization is subject to return to customer.
Material returned for repair, whether in or out of warranty, should be shipped prepaid to:
Rosemount Nuclear Instruments, Inc.
8200 Market Blvd
Chanhassen, MN 55317
USA
NOTICE
The Rosemount 1152 Pressure Transmitter is designed for nuclear use, has been tested to
IEEE 323-1971 and IEEE 344-1975 per Rosemount Reports 38019, 58225, and 117415
and IEEE 344-1975 per Report D8800058, and is manufactured to the requirements of
NQA-1; 10CFR50, Appendix B quality assurance programs; and 10CFR Part 21. To ensure
compliance with 10CFR Part 21, the transmitter must comply with the requirements herein
throughout its installation, operation, and maintenance. It is incumbent upon the user to
ensure that the Rosemount Nuclear Instruments, Inc.’s component traceability program is
continued throughout the life of the transmitter.
Where the manual uses the terms requirements, mandatory, must, or required, the
instructions so referenced must be carefully followed. Rosemount Nuclear Instruments, Inc.
expressly disclaims all responsibility and liability for transmitters for which the foregoing has
not been complied with by the user.
The warranty and limitations of remedy applicable to this Rosemount
equipment are as stated on the reverse of the current Rosemount
quotation and customer acknowledgment forms.
Reference Manual
00809-0100-4235, Rev BA
April 2007
Rosemount 1152
Revision Status
Changes From June 1999 to April 2007
Page (Old) Page (New) Changes
Cover Cover Document revision date change from June 1999 to April 2007, rev from AA to BA
i, ii, 5-10 & back cover ii & back cover Include errata sheet information on address and phone number
6-7 6-8 Include errata sheet information on circuit board number changes: Replaced amplifier
Throughout Throughout References to Fisher-Rosemount were changed to Emerson Process Management
i, back cover Cover, i & back cover Web address changed from www.rosemount.com to
i Cover, i, back page Added reference to European Union product requirement (CE)
2-1,3-1,4-1,5-1,6-1 2-1,3-1,4-1,5-1,6-1 Added table of contents to each section
2-1 2-2 Statement added noting it is the user’s responsibility for qualifying ¼ - 18 NPT connection
2-5 2-6 Rearranged wording on shielded cable, removed reference to Model 353C.
2-3 & 2-4 2-4 & 2-5 Added ‘nominal’ to Notes in drawings Changed significant digits to conform to standard,
5-7 & 6-7 5-7 & 6-8 Changed reference to thread sealant from Loctite 571 (P/N 01152-0121-0001) to Loctite
5-8 & 6-8 5-8 & 6-9 Inserted information on the spare parts kit for bolts and nuts for process flange
6-1 6-1 Changed ISO 9001 to ISO 9001:2000
3-10, 6-3 3-10, 6-4 Added ‘nominal’ to response time specification
6-7, 6-8 6-8 & 6-9 Added to spare parts list the following:
- Back cover Added trademark & registration information
circuit card, P/N 01152-0125-0001 with 01152-0125-0002.
www.emersonprocess.com/rosemount/nuclear
interfaces.
580-PST (P/N 01153-0329-0001). Add sealant cure step to Connecting electrical housing
to sensor module section.
P/N 01153-0175-0002 process flange with welded vent/drain valve.
P/N 01153-0277-0001 valve stem.
Note on current standard transmitter configuration of process flange.
NOTE
The above Revision Status list summarizes the changes made. Please refer to both manuals for complete
comparison details.
www.emersonprocess.com/rosemount/nuclear
Rosemount 1152
Reference Manual
00809-0100-4235, Rev BA
April 2007
1-2
Reference Manual
00809-0100-4235, Rev BA
April 2007
Rosemount 1152
Table of Contents
SECTION 1 Introduction
SECTION 2 Installation
SECTION 3 Calibration
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
About This Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Mechanical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Process Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Conduit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Electrical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Calibration (A and D Output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Span Adjustment (A and D Output) . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Zero Adjustment (A and D Output) . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Calibration Procedure—
Zero and Span Adjustment (A and D Output). . . . . . . . . . . . . . . . . 3-2
Linearity Adjustment
(A and D Output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Damping Adjustment
(D Output Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Calibration (E. N. and L. Output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Span Adjustment
(E, N, and L Output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Zero Adjustment
(E, N, and L Output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Calibration Procedure—Zero and Span Adjustment
(E, N, and L Output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Linearity Adjustment
(E, N, and L Output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Damping Adjustment
(E, N, and L Output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Correction For High Line Pressure (All Output Codes) . . . . . . . . . . . 3-11
Span . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
SECTION 4 Operation
www.rosemount.com
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Transmitter Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
The ␦-Cell Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Linearity Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Voltage Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Rosemount 1152
Reference Manual
00809-0100-4235, Rev BA
April 2007
Zero and Span Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Current Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Current Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Reverse Polarity Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
SECTION 5 Maintenance and Troubleshooting
SECTION 6 Specifications and Reference Data
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Test Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Board Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Sensing Module Checkout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Disassembly Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Process Flange Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Electrical Housing Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Removing Sensor Module from Electrical Housing . . . . . . . . . . . . 5-5
Reassembly Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Connecting Electrical Housing to Sensor Module . . . . . . . . . . . . . 5-7
Electrical Housing Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Process Flange Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Post Assembly Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Nuclear Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Functional Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
TOC-2
Reference Manual
00809-0100-4235, Rev BA
April 2007
Rosemount 1152
Section 1 Introduction
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1
About This Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1
OVERVIEW This manual is designed to assist in installing, operating, and maintaining the
Rosemount 1152 Pressure Transmitter. The manual is organized into the
following sections:
Section 2: Installation
Provides general, mechanical, and electrical installation considerations to
guide you through a safe and effective transmitter installation.
Section 3: Calibration
Provides transmitter calibration procedures.
ABOUT THIS TRANSMITTER
Section 4: Operation
Provides descriptions of how the transmitter operates.
Section 5: Maintenance and Troubleshooting
Provides basic hardware troubleshooting considerations including sensing
module checkout, disassembly and reassembly procedures, and
post-assembly tests.
Section 6: Specifications and Reference Data
Provides nuclear, performance, functional, and physical transmitter
specifications; also includes ordering information, and a list of spare parts.
Rosemount 1152 Pressure Transmitters are designed for precision pressure
measurements in nuclear applications requiring reliable performance and
safety over an extended service life. The Rosemount 1152 transmitter is
available with 4–20 or 10–50 mA output. The 4–20 mA output has been tested
to IEEE Std 323-1971 and IEEE Std 344-1975 per Rosemount Reports
38019, 58225, and 117415. The 10–50 mA output has been seismic tested to
IEEE Std 344-1975 per Rosemount Report D8800058. Stringent quality
control during the manufacturing process includes traceability of
pressure-retaining parts, special nuclear cleaning, and hydrostatic testing.
Rosemount 1152 Transmitters are similar in construction and performance to
the Rosemount 1151 Series that have become a standard of reliable service.
Units are available in absolute (A), gage (G), differential (D), and high-line
differential (H) configurations, with a variety of pressure range options (See
Table 6-1 on page 6-7). Figure 2-1 on page 2-4 shows transmitter dimensional
drawings.
www.emersonprocess.com/rosemount/nuclear
Rosemount 1152
Reference Manual
00809-0100-4235, Rev BA
April 2007
1-2
Reference Manual
00809-0100-4235, Rev BA
April 2007
Rosemount 1152
Section 2 Installation
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-1
General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-1
Mechanical Considerations . . . . . . . . . . . . . . . . . . . . . . . . page 2-1
Electrical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-6
Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-8
OVERVIEW This section contains information and instructions regarding the following
installation-related information:
• General Considerations
• Mechanical Considerations
Process Connections
Conduit
• Electrical Considerations
• Installation Procedures
Mechanical
Electrical
GENERAL CONSIDERATIONS
MECHANICAL CONSIDERATIONS
The quality and accuracy of flow, level, or pressure measurement depends
largely on the proper installation of the transmitter and its associated impulse
piping and valves. For flow measurement, proper installation of the primary
measuring element is also critical to the accuracy of the measurement.
Transmitter installation should minimize the effects of temperature gradients
and fluctuations, and avoid vibration and shock during normal operation. Take
care when designing the measurement to minimize the error caused by
incorrect installation.
This section contains information you should consider when preparing to
mount the transmitter. Read this section carefully before proceeding to the
mechanical installation procedure.
Rosemount 1152 Transmitters must be mounted with an optional mounting
bracket or directly mounted to a rigid support. Proper installation is mandatory
to assure seismic qualification per IEEE Std 344-1975.
Two mounting bracket options are available with the transmitter: a panel
mount or a 2-inch pipe mount. Figure 2-2 on page 2-5 shows the qualified
mounting configuration for both the panel and pipe mount options.
Orientation with respect to gravity is not critical. For maximum accuracy,
however, if the transmitter is mounted so the flanges are horizontal, rezero the
transmitter calibration to cancel the liquid head effect caused by the difference
in height of the process connections.
www.emersonprocess.com/rosemount/nuclear
Reference Manual
00809-0100-4235, Rev BA
Rosemount 1152
April 2007
Process Connections Process tubing installation must prevent any added mechanical stress on the
transmitter under seismic disturbances. This may be done by using
stress-relief loops in the process tubing or by separately supporting the
process tubing close to the transmitter.
Process connections on the transmitter flanges are
sealant when making connections. Valve seats or plugs should also be sealed
with thread sealant. Torque to 200 in-lbs (22.4 N-m).
The user assumes responsibility for qualifying
interfaces.
If the drain/vent valves must be opened to bleed the process lines, torque to
7.5 ft-lb (10.2 N-m) when closing.
Proper location of the transmitter with respect to the process tubing depends
on process parameters. Consider the following in determining the best
location:
• Keep hot or corrosive process fluids from contacting the transmitter.
• Prevent sediment from depositing in the impulse tubing.
• Keep impulse tubing as short as possible.
• Ambient temperature gradients and fluctuations can result in erroneous
transmitter readings.
• For differential transmitters, balance the liquid head on both legs of the
impulse tubing.
• For liquid flow or pressure measurements, make taps to the side of the
line to avoid sediment deposits, and mount the transmitter beside or
below the taps so that gases vent into the process line (see Figure 2-3
on page 2-6).
• For gas flow or pressure measurements, make the taps on the top or
side of the line and mount the transmitter beside or above the taps so
that liquid drains into the process line (see Figure 2-3 on page 2-6).
• For steam flow or pressure measurements, make taps to the side of the
line, and mount the transmitter below the taps so the impulse tubing
stays filled with condensate (see Figure 2-3 on page 2-6).
• For steam service, fill lines with water to prevent steam from contacting
the transmitter. Condensate chambers are not necessary since the
volumetric displacement of the transmitter is negligible.
¼–18 NPT. Use thread
1
/4 - 18 NPT connection
2-2
The piping between the process and the transmitter must transfer the
pressure measured at the process taps to the transmitter. Possible sources of
error in this pressure transfer are:
•Leaks
• Friction loss (particularly if purging is used)
• Trapped gas in a liquid line or trapped liquid in a gas line (head error)
• Temperature-induced density variation between legs (head error), for
differential transmitters
Reference Manual
00809-0100-4235, Rev BA
April 2007
Rosemount 1152
To minimize the possibility of errors, take the following precautions:
• Make impulse tubing as short as possible.
• Slope tubing at least one inch per foot up toward the process
connections for liquid and steam.
• Slope tubing at least one inch per foot down toward the process
connections for gas.
• Avoid high points in liquid lines and low points in gas lines.
• Use impulse tubing of sufficient diameter to avoid friction effects.
• Ensure that all gas is vented from liquid tubing legs.
• Ensure that the impulse tubing is of adequate strength to be compatible
with anticipated pressure.
For differential transmitters, consider the following:
• Keep both impulse legs at the same temperature.
• When sealing fluid is used, fill both piping legs to the same level.
• When purging is used, make the purge connection close to the process
taps and purge through equal lengths of the same size tubing. Avoid
purging through the transmitter.
2-3
Rosemount 1152
4.5 Max.
(114.3)
7
/16–20 UNF
(typical)
1.63(41.3)
1/4–18 NPT
Pressure
Dim.
A
Connection
(typical)
Figure 2-1. Rosemount 1152 Dimensional Drawings.
ROSEMOUNT 1152 DP AND HP
4.5 Max.
(114.3)
1
/2–14 NPT
(2 places)
Nameplate
(this side)
Termi nal
Connections
(this side)
9 Max.
(228.6)
3.7
(94)
Conduit Connection
(remove for zero and
span adjust)
Transmitter Circuitry
Drain/Vent
Valve (2)
3.4
(86.4)
Reference Manual
00809-0100-4235, Rev BA
April 2007
0.75 (19) Clearance for
Cover Removal (typical)
7
/16–14 UNC
(4 places)
4.5 Max.
(114.3)
9 Max.
(228.6)
7
/16–20 UNF
(typical)
1.63(41.3)
1/4–18 NPT
Pressure
Connection
Dim.
A
NOTE
Dimensions are nominal in inches (millimeters).
2-4
(typical)
ROSEMOUNT 1152 AP AND GP
4.5 Max.
(114.3)
1/2–14 NPT
Conduit Connection
(2 places)
(remove for zero and
span adjust)
Transmitter Circuitry
Terminal Connections
3.7
(94)
3.4
(86.4)
Nameplate
(this side)
(this side)
Drain/Vent
Valve (1)
Blank
Flange
Pressure
R a n g e C o d e
3, 4, 5 2.13 (54)
6, 7 2.19 (55.6)
8 2.25 (57.2)
92.28 (57.9)
0 2.33 (59.1)
7
/16–14 UNC
(4 places)
Dimension
A
0.75 (19) Clearance for
Cover Removal (typical)
1152-1152A05C, B05B, C05A, A05D B05B, F05A
Reference Manual
00809-0100-4235, Rev BA
April 2007
Figure 2-2. Rosemount 1152 Typical Mounting Configuration.
Rosemount 1152
2.81
(71.4)
2.62
(66.5)
2.81
(71.4)
2.81
(71.4)
4.1
(104)
1.41
(35.8)
PANEL MOUNTING HOLE PATTERN
1.41
(35.8)
1.41
(35.8)
2.81
(71.4)
5
(127)
PANEL MOUNTING HOLE PATTERN
4.5
(114.3)
4.93
(125)
Mounting Bracket
for Aluminum Housing
with Painted Carbon Steel
Bracket Shown in Typical
Mounting Configuration.
2.62
(66.5)
2.75
(69.9)
Mounting Bracket
for SST Housing
with SST Bracket
Shown in Typical
Mounting Configuration.
2.75
(69.9)
2.22
(56.4)
4.93
(125)
PIPE MOUNTING HOLE PATTERN
4.97
(126.2)
Mounting Bracket
for Pipe Mount
Shown in Typical
Mounting Configuration
NOTE
All dimensions are nominal in
inches (millimeters).
2-5
Rosemount 1152
Figure 2-3. Transmitter Installation Configurations.
Plugged Tee for
Plugged Tees for
Steam Service or
Sealing Fluid
Steam Service or
Sealing Fluid
Flow
Reference Manual
00809-0100-4235, Rev BA
April 2007
H
Drain/Vent
Valves
L
Drain/Vent
Valve
Sufficient
Length
for Cooling
L
Rosemount 1152DP, HP
Blocking Valves
3-Valve Manifold
H
Drain/Vent
Valves
LIQUID SERVICE
Sufficient
Length
for Cooling
Rosemount 1152AP, GP
Blocking
Valve
Drain/Vent
Valve
3-Valve
Manifold
Flow
Rosemount 1152AP, GP
Rosemount 1152DP, HP
GAS SERVICE
Sufficient
Length
for Cooling
Conduit The conduit connections to the transmitter are ½–14 NPT. Two hubs are
available on the transmitter for convenient installation. Close off the unused
hub with a stainless steel ½–14 NPT pipe plug; all threads must be sealed
with a pipe-thread sealant. Use a qualified conduit seal at the conduit entry to
prevent moisture from accumulating in the terminal side of the housing during
accident conditions. To prevent the conduit from adding mechanical stress to
the transmitter during seismic disturbances, use flexible conduit or support
the conduit near the transmitter. Install the conduit seal in accordance with the
manufacturer’s instructions or use the procedure on page 2-8.
ELECTRICAL CONSIDERATIONS
This section contains information that you should consider when preparing to
make electrical connections to the transmitter. Read this section carefully
before proceeding to the electrical installation.
2-6
The Rosemount 1152 Pressure Transmitter provides a 4–20 or 10–50 mA
signal when connected to a suitable dc power source. Figure 2-4 on page 2-7
shows a typical signal loop consisting of a transmitter, a power supply, and
various receivers (controller, indicator, computer, etc.). With 4–20 mA output
electronics, the power supply must supply at least
12 volts to the transmitter terminals at 30 mA (overscale) signal, or the
maximum output current required for proper system operation. With 10–50
mA output electronics, the power supply must provide 30 volts minimum to
the transmitter terminals at 90 mA (overscale) signal, or the maximum output
current required for proper system operation. Any power supply ripple
appears in the output load. The supply voltage versus load limitation
relationship is shown in Figure 2-5 on page 2-7. The load is the sum of the
resistance of the signal leads and the load resistance of the receivers.
Signal wiring need not be shielded, but twisted pairs yield the best results. In
electrically noisy environments, shielded cable should be used for best
results. Do not run signal wiring in conduit or open trays with power wiring, or
near heavy electrical equipment. Signal wiring may be ungrounded (floating)
or grounded at any place in the signal loop. The transmitter case may be
grounded or ungrounded.
Reference Manual
00809-0100-4235, Rev BA
April 2007
Figure 2-4. Transmitter Wiring Connections.
Rosemount 1152
Figure 2-5. Supply Voltage vs. Load Relationship.
Terminal Side
(cover removed)
-
1650
1500
1000
500
Load (⍀)
0
12 20 30 40 45
4–20 mA dc
Design Region
Power Supply (V dc)
+
-
+
Power
Supply
+
+
-
1152-1152BG05A
1100
1000
500
Load (⍀)
0
30 40 50 60 70 80 85
10–50 mA dc
Design Region
Power Supply (V dc)
The capacitance sensing element uses alternating current to generate a
capacitance signal. This alternating current is developed in an oscillator circuit
with a frequency of 32,000 ± 10,000 Hz. This 32,000 Hz signal is
capacitor-coupled to the transmitter case ground through the sensing
element. Because of this coupling, a voltage may be imposed across the load,
depending on choice of grounding.
This impressed voltage, which is seen as high frequency noise, has no effect
on most instruments. Computers with short sampling times in a circuit where
the negative transmitter terminal is grounded detect a significant noise signal.
Filter this signal out by using a large capacitor (1
µf) or a 32,000 Hz LC filter
across the load. Signal loops grounded at any other point are negligibly
affected by this noise and do not need filtering.
2-7
Rosemount 1152
Reference Manual
00809-0100-4235, Rev BA
April 2007
INSTALLATION PROCEDURES
Installation consists of mounting the transmitter and conduit and making
electrical connections. Following are procedures for each operation.
Mechanical Transmitter
Be careful not to break the neck seal between the sensor module and the electronics
housing.
The threaded interface between the sensor module and the electronics
housing is hermetically sealed before shipment. The integrity of this seal is
necessary for the safe operation of the transmitter during accident conditions.
If the seal is broken, reseal it according to Connecting Electrical Housing to
Sensor Module on page 5-7.
1. Mount the bracket to a panel or other flat surface (see Figure 2-2 on
page 2-5). Use four
grade 2 bolts were used during qualification. Torque each bolt to 19
ft-lb (26 N-m).
For the pipe mounting option, assemble the bracket kit to a 2 in. pipe
(see Figure 2-2 on page 2-5). Torque each bolt to 19 ft-lb
(26 N-m).
2. Attach the transmitter to the mounting bracket (see Figure 2-2 on
page 2-5). Use the four
the unit. Torque each bolt to 21 ft-lb (29 N–m).
5
/16 in. diameter bolts (not supplied with unit). SAE
7
/16–20 × ¾ bolts with washers supplied with
Conduit
1. Seal the conduit threads with thread sealant (such as Grafoil
™
tape).
Conduit threads mate with a standard ½–14 NPT male fitting.
2. Starting at zero thread engagement, install the conduit into the
transmitter between 4 and 7 turns, or a minimum of 150 in-lb (16.9
N-m). Hold the electronics housing securely to avoid damaging the
threaded neck seal between the sensor module and the electronics
housing during conduit installation.
3. Provide separate support for the conduit if necessary.
Electrical 1. Remove the cover from the terminal side of the transmitter (see
Figure 2-1 on page 2-4).
2. Connect the power leads to the “SIGNAL” terminals on the transmitter terminal block (see Figure 2-4 on page 2-7). Torque the terminal screws to 5 in-lb (0.6 N-m) or hand tight.
Do not connect signal leads to the “TEST” terminals.
2-8
Reference Manual
00809-0100-4235, Rev BA
April 2007
Rosemount 1152
3. Recheck connections for proper polarity.
4. Check cover O-ring grooves for cleanliness. If chips or dirt are
present, clean the seat and mating portion of the cover with alcohol.
Lubricate replacement O-ring with O-ring grease
(RMT P/N 01153-0248-0001 or P/N 01153-0053-0001).The
transmitter was qualified using Dow Corning
Grease.
5. Spray the inside threads of the electronics covers with cover lubricant (RMT P/N 01153-0333-0001) if necessary. If covers are already sufficiently lubricated, do not spray.
6. Carefully replace the cover and tighten to 16.5 ft-lb (22.4 N-m).
®
55 Silicone O-ring
2-9
Rosemount 1152
Reference Manual
00809-0100-4235, Rev BA
April 2007
2-10
Reference Manual
00809-0100-4235, Rev BA
April 2007
Rosemount 1152
Section 3 Calibration
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1
Calibration (A and D Output) . . . . . . . . . . . . . . . . . . . . . . . page 3-1
Calibration (E, N, and L Output) . . . . . . . . . . . . . . . . . . . . page 3-4
Correction For High Line Pressure (All Output Codes) . page 3-11
OVERVIEW Each transmitter is factory calibrated to the range specified by the customer.
This section contains the following transmitter calibration information:
• Calibration—A and D Output
Span Adjustment (A and D Output)
Zero Adjustment (A and D Output)
Calibration Procedure—Zero and Span Adjustment (A and D Output)
CALIBRATION (A AND D OUTPUT)
Linearity Adjustment (A and D Output)
Damping Adjustment (D Output Only)
• Calibration—E, N, and L Output
Span Adjustment (E, N, and L Output)
Zero Adjustment (E, N, and L Output)
Calibration Procedure—Zero and Span Adjustment (E, N, and L
Output)
Linearity Adjustment (E, N, and L Output)
Damping Adjustment (E, N, and L Output)
• Correction for High Line Pressure—All Output Codes
Span
Zero
(See Nuclear Regulatory Commission IE Bulletin No. 80-16, June 27, 1980.)
The Rosemount 1152DP, HP, GP, and AP Transmitters are factory calibrated
to the range shown on the nameplate. This range may be changed within the
limits of the transmitter. Zero may also be adjusted to elevate (for all models
except Rosemount 1152AP) or suppress (for all models). The span and zero
adjustments are external and located under the nameplate.
www.emersonprocess.com/rosemount/nuclear
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