Emerson Rosemount 1595 User manual

www.rosemount.com
Reference Manual
00809-0100-4828, Rev EA
November 2007
Rosemount 1595 Conditioning Orifice Plate

Reference Manual
00809-0100-4828, Rev EA
November 2007 Rosemount 1595
www.rosemount.com
Rosemount 1595 Conditioning
Orifice Plate
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.
The United States has two toll-free assistance numbers and one International number.
Customer Central
1-800-999-9307 (7:00 a.m. to 7:00 P.M. CST)
International
1-[phone]
National Response Center
1-800-654-7768 (24 hours a day)
Equipment service needs
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
Process Management Representative.

Reference Manual
00809-0100-4828, Rev EA
November 2007
TOC-1
Rosemount 1595
SECTION 1
Introduction
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Receiving and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Returning the Product. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
SECTION 2
Installation
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Location and Orientation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Horizontal Pipe Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Vertical Pipe Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
1595 Straight Pipe Requirements . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Rosemount 1595 Types: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Rosemount 1496 Types: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Rosemount 1497 Types: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
APPENDIX A
Reference Data
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Performance Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Functional Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
APPENDIX B
Installation
Drawings
Installation Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Table of Contents

Reference Manual
00809-0100-4828, Rev EA
November 2007
Rosemount 1595
TOC-2

Reference Manual
00809-0100-4828, Rev EA
November 2007 Rosemount 1595
www.rosemount.com
Section 1 Introduction
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1
Receiving and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1
Returning the Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1
USING THIS MANUAL This product manual provides installation, configuration, calibration,
troubleshooting, and maintenance instructions for the Rosemount 1595
Conditioning Orifice Plate.
Section 2: Installation
Appendix A: Reference Data
Appendix B: Installation Drawings
RECEIVING
AND INSPECTION
Flowmeters are available in different models and with different options, so it is
important to inspect and verify that the appropriate model was delivered
before installation.
Upon receipt of the shipment, check the packing list against the material
received and the purchase order. All items are tagged with a model number,
serial number, and customer tag number. Report any damage to the carrier.
RETURNING THE
PRODUCT
To expedite the return process, call the Rosemount National Response
Center toll-free at 800-654-7768. This center, available 24 hours a day, will
assist you with any needed information or materials.
The center will ask for the following information:
• Product model
• Serial numbers
• The last process material to which the product was exposed
The center will provide
• A Return Material Authorization (RMA) number
• Instructions and procedures that are necessary to return goods that
were exposed to hazardous substances
NOTE
If a hazardous substance is identified, a Material Safety Data Sheet (MSDS),
required by law to be available to people exposed to specific hazardous
substances, must be included with the returned materials.

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November 2007
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Reference Manual
00809-0100-4828, Rev EA
November 2007 Rosemount 1595
www.rosemount.com
Section 2 Installation
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-1
Location and Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-5
SAFETY MESSAGES Instructions and procedures in this section may require special precautions to
ensure the safety of the personnel performing the operations. Please refer to
the following safety messages before performing any operation in this section.
Checklist The following is a summary of the steps required to complete a 1595
installation.
If this is a new installation, begin with step 1.
If the mounting is already in place, verify that the orifice flange size and rating
match the recommended specification and begin with step 5.
1. Determine where the 1595 is to be place within the piping system.
2. Establish the proper orientation as determined by the intended
service for the orifice plate.
3. Orient the 1595 Conditioning Orifice Plate so the pressure taps are
centered between any two (of four) orifice bore holes. In addition, the
pressure taps should be located at 90° to the plane of the last elbow.
4. Review “Location and Orientation” on page 2-2.
5. Confirm the 1595 configuration.
6. Measure the pipe’s internal diameter (I.D.), preferably at 1 x I.D. from
the orifice flange (upstream or downstream).
NOTE
Providing the pipe’s I.D. at the time of purchasing the 1595 is necessary to
maintain published orifice plate accuracy.
7. Install the orifice plate.
8. Check for leaks.
9. Commission the orifice plate.
Failure to follow these installation guidelines could result in death or serious injury:
• Make sure only qualified personnel perform the installation.
• Remove pressure and drain the pipe assembly prior to installing or removing the
orifice plate.
• If the process fluid is caustic or otherwise hazardous, follow the instruction closely
to prevent mishap.

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Rosemount 1595
2-2
LOCATION AND
ORIENTATION
The orifice plate electronics must be installed in the proper orientation relative
to the pipe and the fluid measured.
Horizontal Pipe
Installation
OPERATING TEMPERATURE LIMITS
For line sizes 2-in. (50 mm) to 24-in. (600mm)
Temperature Range: -320 to 1200°F (-196 to 649°C)
-320 to 800°F (-196 to 427°C) and differential pressure up to 800 inH2O.
800 to 1200°F (427 to 649°C) and differential pressure up to 400 inH2O.
Pressure Tap Orientation
Orient the 1595 Conditioning Orifice Plate so that the pressure taps are
centered between any 2 (of 4) orifice bore holes. In addition, the pressure
taps should be located at 90° to the plane of the last elbow.
The following figures show paddle style conditioning orifice plate, but
orientation pertains to both paddle and universal plate styles.
Gas in Horizontal Pipes
The electronics should be mounted above the pipe to ensure that condensate
does not collect on the transmitter sensing diaphragms. Orient the unit within
the 120°recommended zone as shown in Figure 2-1.
Figure 2-1. Gas in Horizontal
Pipes
FLOW
30°
Recommended Zone 120 degrees
30 °
Flow
Recommended Zone 120°

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Rosemount 1595
Liquid or Steam in Horizontal Pipes
The electronics should be mounted below the pipe to ensure that gases do
not collect on the transmitter sensing diaphragms.
Figure 2-2. Liquid and Steam in
Horizontal Pipes
Vertical Pipe Installation Gas in Vertical Pipes
Mount the electronics above the pipe with the instrument lines sloping down.
Figure 2-3. Gas in Vertical Pipes
FLOW
Flow

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Rosemount 1595
2-4
Liquid or Steam in Vertical Pipes
Mount the transmitter below the pipe with the instrument lines sloping up.
Figure 2-4. Liquid and Steam in
Vertical Pipes
1595 Straight Pipe
Requirements
Use the appropriate lengths of straight pipe upstream and downstream of the
1595 to minimize the effects of moderate flow disturbances in the pipe.
NOTE
The Rosemount 1595 can be used with Rosemount 1496 Orifice Flange
Unions and Rosemount 1497 Meter Sections. For product offering see
document number 00813-0100-4792.
FLOW
Table 2-1. 1595 Straight Pipe Requirements(1)
(1) Consult an Emerson Process Management representative if the type of disturance is not listed.
Beta 0.20 0.40 0.65
Upstream (inlet)
side of primary
Single 90° bend or tee 2 2 2
Two or more 90 ° bends in the same plane 2 2 2
Two or more 90° bends in different plane 2 2 2
Up to 10° of swirl(2)
(2) Not applicable in line sizes greater than 24-in. (600 mm).
Pressure Tap Orientation
Orient the 1595 Conditioning Orifice Plate so that the pressure taps are
centered between any 2 (of 4) orifice bore holes. In addition, the pressure
taps should be located at 90° to the plane of the last elbow.
Centering Requirements
The 1595 should be installed so that it is centered in the pipes as
recommended by ISO-5167.
2 2 2
Reducer (1 line size)(2) 222
Butterfly valve (75% to 100% open)(2) 2 2 N/A
Downstream (outlet) side of primary 222

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Rosemount 1595
INSTALLATION
Rosemount 1595 Types:
NOTE
For 1496 Flange Union or 1497 Meter Section installation, refer to the
Rosemount 1595 Conditioning Orifice Plate reference manual (document
number 00809-0100-4828).
Use the following steps to install the 1595 conditioning orifice plate
(paddle or universal plate style).
1. Determine Location and Orientation (see page 2-2).
2. Install the Orifice Plate
a. Depressurize the line using site-specific requirements.
b. Loosen all studs and nuts.
c. Remove the studs in one-half of the flange union.
d. Spread flange union by turning jackscrews clockwise.
e. For line sizes > 24-in (600 mm), refer to Figure 2-7 and instructions
using alignment tool.
f. Install the new plate or remove the existing plate for replacement
or inspection.
g. Install the new gaskets when installing the plate. It is
recommended that new gaskets be installed each time the orifice
flange union is separated.
h. Center the plate in the pipe I.D.
i. Release the flange union by turning the jackscrews
counter-clockwise.
j. Replace the studs.
k. Tighten studs in a star pattern.
NOTE
Standard 1/16-in. thick fiber gaskets are recommended for use with the 1595.
Using other gaskets could potentially affect the measurement.
Rosemount 1595P Rosemount 1595U with Plate Holder (PH)

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Figure 2-5. Rosemount 1595P
Installation
Figure 2-6. Rosemount 1595U
with Plate Holder (PH)
Installation
NOTE
For 1595U Universal Conditioning Orifice Plate style, refer to manufacturer’s
orifice fitting installation manual for installation details.
Nuts
Transmitter
Pipe
Section
1595(1)
Jackscrew (2)
Plug (2)
Nut
Gasket (2)
Jackscrew
Nut
Flow
(1) The installation drawings applies when using the Rosemount 3051S, Rosemount 3051C,
and Rosemount 3095MV transmitter. See the following documents for quick installation instruction of
the transmitters.
Rosemount 3051S: document number 00825-0100-4801
Rosemount 3051C: document number 00825-0100-4001
Rosemount 3095MV: document number 00825-0100-4716
Jackscrew
Nut
Stud
Nuts
Transmitter
Stud
Pipe
Section
Nuts
Jackscrew
Nut
(1) The installation drawings applies when using the Rosemount 3051S, Rosemount 3051C,
and Rosemount 3095MV transmitter. See the following documents for quick installation instruction of
the transmitters.
Rosemount 3051S: document number 00825-0100-4801
Rosemount 3051C: document number 00825-0100-4001
Rosemount 3095MV: document number 00825-0100-4716
Jackscrew
1595(1)

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Rosemount 1595
For sizes > 24-in. (600 mm) and use with alignment tool.
1. When an alignment tool is provided, install the alignment tool on the
flange studs shown in Figure 2-7.
2. For Horizontal installation, use the horizontal lift hole (stamped HLH
on paddle) to lift the conditioning orifice plate from a horizontal
position and guide into location between the flanges.
3. For Vertical installation, first use the horizontal lift hole (HLH) to lift the
conditioning orifice plate from a horizontal position to vertical, then
use the vertical lift hole (stamped VLH on paddle) to lift the
conditioning orifice plate vertically and guide into location between
the flanges.
Figure 2-7. Rosemount 1595P
(sizes > 24-in (600 mm))
installation
(1) The installation drawings applies when using the Rosemount 3051S, Rosemount 3051C,
and Rosemount 3095MV transmitter. See the following documents for quick installation instruction of
the transmitters.
Rosemount 3051S: document number 00825-0100-4801
Rosemount 3051C: document number 00825-0100-4001
Rosemount 3095MV: document number 00825-0100-4716
Nuts
Jackscrew
Nut
Jackscrew
Nuts
Pipe
Section
Jackscrew
Jackscrew
Nut
Gasket (2)
1595(1)
Stud
Transmitter
Alignment Tools
“A”
DETAIL “A”
1595(1)
Alignment Tools
Gasket (2)

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Rosemount 1595
2-8
NOTE
To ensure the best possible flow measurement accuracy, Emerson provides
an Official DP Calculation Sheet with every 1595 Conditioning Orifice Plate.
The Official DP Calculation sheet uses the calibration factor which is unique to
that device and is also stamped on the orifice plate. The Official DP
Calculation Sheet displays the expected full scale flow value and the
calculated full scale DP value and is corrected for the unique calibration factor
which is also displayed on the sheet. This full scale DP value should be used
to range a DP transmitter for the referenced application. Or, the calibration
factor should be used as a correction factor when configuring a flow computer
for the Rosemount Conditioning Orifice Plate.
Rosemount 1496 Types:
1496 WN
1496 SO
1496 RJ Step 1: Determine the Proper Orientation
See “Location and Orientation” on page 2-2.
Step 2: Weld the Flange Union.
Follow these steps to weld the orifice flanges to the pipe.
1. Depressurize the line using site-specific requirements
2. Prepare the pipe ends.
a. For flanged models, ensure the pipe mounting flange is the same
size or rating.
b. For threaded models, ensure the pipe union or coupling is the
same size pipe thread as the meter section
3. Ensure that the pipe mounting flange is the correct size and rating.
4. Ensure that the flange taps are aligned and level.
5. Weld the orifice flange to the pipe. To avoid serious burns, allow the
orifice flanges to cool before continuing.

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Rosemount 1595
Rosemount 1497 Types:
1497 WN
1497 RJ
1497SO
Step 1: Determine the Proper Orientation
See “Location and Orientation” on page 2-2.
Step 2: Install the Meter Section
Follow these steps to weld the orifice flanges to the pipe.
1. Depressurize the line using site-specific requirements
2. Remove the section of pipe that will be replaced by the meter section
using site-specific requirements
3. Ensure that the pipe mounting flange is the correct size and rating
a. For flanged models, ensure the pipe mounting flange is the same
size or rating.
b. For threaded models, ensure the pipe union or coupling is the
same size pipe thread as the meter section
4. Orient the assembly appropriately for the type of service (liquid, gas,
or steam).
5. Ensure that the I.D. of the meter section and the I.D. of the pipe are
concentric.
6. Complete assembly to the appropriate connections. To avoid serious
burns, allow the orifice flanges to cool before continuing.
For commissioning, operation and maintenance, refer to the appropriate
transmitter reference manual
• Rosemount 3051C Pressure Transmitter Reference Manual
(document number 00809-0100-4001)
• Rosemount 3051S Series Pressure Transmitter Reference Manual
(document number 00809-0100-4801)
• Rosemount 3095M Mass Flow Transmitter Reference Manual
(document number 00809-0100-4716)

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