Rosemount 8732C User Manual
00809-0100-4725
Model 8732C
Integral Mount
Magnetic
Flowmeter System
English
Rev. BB
Product Manual
Model 8732C
Integral Mount Magnetic
Flowmeter System
NOTICE
Read this manual before working with the prod uc t. For perso nal and system
safety, and for optimum product performance, make sure you thoroughly
understand the conten ts before installing, using, or maintaining this product.
Within the United States, Rosemount Inc. ha s two tol l-free assistance numbers.
Customer Central: 1-800-999-9307 (
Technical support, quoting, and order-related questions.
North American 1-800-654-7768 (
Response Center: Equipment service needs.
For equipment s ervice or s upport n eeds outs ide th e United State s, cont act your
local Rosemount representative.
7:00 a.m. to 7:00 p.m. CST)
24 hours a day – Includes Canada)
Rosemount Inc.
8200 Market Boulevard
Chanhassen, MN 55317 USA
Tel 1-800-999-9307
Telex 4310012
Fax (612) 949-7001
© Rosemount Inc. 1997. All rights reserved.
http://www.rosemount.com
T
N
I
E
D
R
P
IN
U.
A.
S.
The products described in this document are NOT designed for nuclearqualified applications.
Using non-nuclear qua lifi ed products in applications that require nuclearqualified hardware or products may cause inaccurate readings.
For information on Rosemount nucle ar-qualified products, contact you r local
Rosemount Sales Representative.
Rosemount, the Rosemount logotype, and SMART FAMILY are registered trademarks of Rosemount Inc.
HART is a registered trademark of the HART Communica tion Found atio n.
Cover Photo: 8732-002AB.
Fisher-Rosemount satisfies all obligations coming from legislation
to harmonize product requ ireme n ts in th e Euro pe a n Union.
SNF-0004
Table of Contents
IMPORTANT
Procedures and instructions in this manual may require special precautions to
ensure the safety of the personnel performing the operations. Information that
raises potential safety issues is indicated by a warning symbol ( ). Refer to the
safety messages listed at the beginning of each section before performing
an operation preceded by this symb o l.
SECTION 1:
Introduction
SECTION 2:
Installation
Manual Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 1
System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Identify Options and Configurations . . . . . . . . . . . . . . . . . . . . . . 2-2
Hardware Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Failure Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Current Output Internally or Externally Powered . . . . . . . 2-2
Transmitter Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Changing Hardware Switch Settings . . . . . . . . . . . . . . . . . . 2-3
Mechanical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Electrical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Conduit Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Transmitter Input Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
dc Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Important User Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Installation Category . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Supply Wire Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Disconnects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Overcurrent Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Transmitter Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Environmental Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
i
Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Flowtube Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Upstream/Downstream Piping . . . . . . . . . . . . . . . . . . . . . . . 2-8
Flowtube Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Vertical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Horizontal Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Flow Direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-11
Gaskets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Flange Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
Model 8705 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
Model 8711 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-13
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-15
Model 8705 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-15
Model 8711 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-17
Install Conduit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19
Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19
Options, Considerations, and Procedures . . . . . . . . . . . . . . . . . . . . .2-20
Connect 4–20 mA Loop External Power Source . . . . . . . . . . . . .2-20
Connect Pulse Output Power Source . . . . . . . . . . . . . . . . . . . . .2-21
Connect Auxiliary Output Control . . . . . . . . . . . . . . . . . . . . . . .2-22
Quick Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-22
Installation Check and Guide . . . . . . . . . . . . . . . . . . . . . . . . . . .2-23
Process Leak Protection (Model 8705 Only) . . . . . . . . . . . . . . . . . . .2-23
Process Leak Containment . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-24
Relief Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25
Field-Removable Electrodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-26
SECTION 3:
Local Operator Interface
The Local Operator Interface (LOI) . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
LOI Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
LOI Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Data Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
LOI Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Table Value Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Select Value Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
LOI Screen Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Diagnostic Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
ii
SECTION 4:
Transmitter Functions
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Review Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Check Output Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Process Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Basic Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Line Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Tube Cal. Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Upper Range Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Special Units Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Volume Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Base Volume Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Conversion Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Base Time Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Flow Rate Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Analog Output Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Upper Range Value (URV) . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Lower Range Value (LRV) . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
4–20 mA Output Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Loop Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Digital Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Auxiliary Output Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Pulse Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Totalizer Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Totalizer Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Noise Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Coil Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Auto Zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Low Flow Cutoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Signal Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Signal Processing Control . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
Number of Samples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
Maximum Percent Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
Time Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14
Gain (Electronics) Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14
Transmitter Information Configuration . . . . . . . . . . . . . . . . . . . . . .4-15
Transmitter Tag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15
Software Revision Number . . . . . . . . . . . . . . . . . . . . . . . . . .4-15
Descriptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15
Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15
Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15
Flowtube Tag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15
Flowtube Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15
Liner Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16
Electrode Typ e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16
Electrode Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16
Flange Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16
Flange Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-17
Multidrop Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-18
Auto Poll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-19
Poll Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-19
iii
SECTION 5:
Troubleshooting
Basic Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Advanced Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Process Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Software Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Loop Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Pulse Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Transmitter Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Flowtube Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . . 5-5
Transmitter Removal Procedure . . . . . . . . . . . . . . . . . . . . . . 5-5
Transmitter Assembly Procedure . . . . . . . . . . . . . . . . . . . . . 5-5
Return of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
SECTION 6:
Model 8732C
Specifications and
Reference Data
SECTION 7:
Model 8705 Specifications
and Reference Data
SECTION 8:
Model 8711 Specifications
and Reference Data
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Functional Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Model 8732C Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Functional Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Functional Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
iv
APPENDIX A:
HART Communicator
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
HART Communicator Menu Tree. . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
HART Fast Key Sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Connections and Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
Basic Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
Action Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
Function Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
Alphanumeric and Shift Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Data Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
HART Fast Key Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
HART Fast Key Example . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Menus and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
Online Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
Diagnostic Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10
APPENDIX B:
Operation Planning
APPENDIX C:
Transmitter
Output Instability
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Flowtube Site Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Line Power Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Bypass Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Process Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Adequate Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Earth Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Low-Noise Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Flowtube Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
Upstream Piping Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
Vertical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
Horizontal Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
Magnetic Flowmeter Sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Auto Zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Signal Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
How Does It Really Work? . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
When Should Signal Processing Be Used? . . . . . . . . . . . . . . C-4
APPENDIX D:
Magnetic Flow
Operating Principles
INDEX
Operating Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
Primary and Secondary Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2
Series 8700 Magnetic Flowmeter Flowtube . . . . . . . . . . . . . . . . D-2
Series 8712 Magnetic Flowmeter Transmitter . . . . . . . . . . . . . . D-2
Electrical Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2
Pulsed dc Field Coil Advantages . . . . . . . . . . . . . . . . . . . . . . . . . D-2
v
vi
Section
1 Introduction
MANUAL SCOPE
This manual provides instructions for installing, configuring,
operating, and troubleshooting the Rosemount Model 8732C
Integral Mount Magnetic Flowmeter System.
Section 2: Installation
provides step by step instructions for installing and starting-up the
Model 8732C Magnetic Flowmeter System.
Section 3: Local Operator Interface
introduces the Model 8732C local operator interface (LOI) and its
function in configuring the Model 8732C.
Section 4: Transmitter Functions
guides you through the software configuration functions for the Model
8732C. Basic configuration covers the functions that are necessary to
get the system up and running as well as special configuration.
Section 5: Troubleshooting
includes troubleshooting tables and software test procedures for
diagnosing and repairing problems with the Model 8732C.
Section 6: Model 8732 Specifications and Reference Data
provides functional, performance, and physical specifications for the
Model 8732C. It also includes ordering information and approvals.
Section 7: Model 8705 Specifications and Reference Data
provides functional, performance, and physical specifications for Model
8705 Flanged Magnetic Flowmeter Flowtubes. It also includes ordering
information and approvals.
Section 8: Model 8711 Specifications and Reference Data
provides functional, performance, and physical specifications for Model
8711 Wafer Magnetic Flowmeter Flowtubes. It also includes ordering
information and approvals.
Appendix A: Hart Communicator
is a detailed summary of the operational features of the HART
Communicator. It includes a menu tree, Fast Key Sequence table,
and other instructions.
Appendix B: Operation Planning
provides guidance for system planning when using a magnetic
flowmeter system.
Appendix C: Transmitter Output Instability
describes the problems of signal noise and the s ignal processing system
of the Rosemount Model 8732C Transmitter.
Appendix D: Magnetic Flow Operating Principles
explains the principles behind Series 8700 System operations,
functions, and design.
1-1
Rosemount Model 8732C Integral Mount Magnetic Flowmeter System
SYSTEM DESCRIPTION
SAFETY MESSAGES
A complete magnetic flowmeter system consists of two components: the
Rosemount Model 8732C microprocessor-based integral-mount magnetic
flowmeter transmitter, and a Rosemount Model 8705 or 8711 flowtube.
The flowtube is installed in-line with process piping, either vertically or
horizontally. Coils located on opposite sides of the flowtube create a
magnetic field, and conductive liquid moving through the magnetic
field generates a voltage that is detected by two electrodes.
The transmitter controls the generation of th e mag netic field and
senses the voltage detected by the electrodes. Base d on the se n sed
voltage, the transmitter calculates a flow rate and produces analog
and frequency output signals proportional to this flow rate.
Procedures and instructions in this manual may requ ire spe cial
precautions to ensure the safety of the perso nnel performi ng the
operations. Refer to the safety messages listed at the beginning of
each section before performing any operations.
1-2
Section
2 Installation
INTRODUCTION
SAFETY MESSAGES
Warnings
This section covers the installation procedures for the Model 8732C
Magnetic Flowmeter System.
Instructions and procedures in this section may require special
precautions to ensure the safety of the perso nnel performi ng
the operations. Information that raises potential s afety issues
is indicated by a warning symbol ( ). Please refer to the following
safety messages before performing an operation preceded by
this symbol.
Explosions could result in death or serious injury:
• Verify that the operating atmosphere of the flowtube and
transmitter is consistent with the appropriate hazardous
locations certifications.
• Do not remove the transmitter cover in explosive atmospheres
when the circuit is alive.
• 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.
• Both transmitter covers must be fully engaged to meet
explosion-proof requirements.
Failure to follow safe installation a nd servicing guide lines could res ult
in death or serious injury:
• Make sure only qualified personnel perform the installation.
• Do not perform any service other than those contained in this
manual unless qualified.
High voltage that may be present on leads co uld cause
electrical shock:
• Avoid contact with leads and terminals.
2-1
Rosemount Model 8732C Integral Mount Magnetic Flowmeter System
PRE-INSTALLATION
Identify Options
and Configurations
Hardware Switches
There are several pre-installation steps that make the installation process
easier. They include identifying the options and configurations that apply
to your application, setting the hardware switches if neces sary, and
consideration of m ech anic al , electr ical , and envir on mental req u iremen ts .
Please remember that the flowtube liner is vulnerabl e to handli ng
damage. Never place anything through the flowtube for the purpose of
lifting or gaining leverage. Liner damage can render the flowtube useless.
Standard application of the Model 8732C includes a 4–20 mA output
and control of the flowtube coils. Other applications may require
one or more of the following configurations or options:
• Multidrop Communications
• Auxiliary Output
• Pulse Output
Additional options may also apply. Be sure to identify the options and
configurations that apply to your situation, and keep a list of them
nearby during the installation and configuration procedures.
The Model 8732C electronics board is equipped with three user-selectable
hardware switches: Failure Alarm Mode, Output Power Source, and
Software Lockout Mode. The standard configurations for these switches
when shipped from the factory are as follows:
Failure Alarm Mode: High
Output Power Source: Internal
Software Lockout: Off
Definitions of these switches and their functions are provided below.
If you determine that the settings must be changed, see Changing
Hardware Switch Settings on page 2-3.
Failure Mode If the Model 8732C experiences a catastrophic failure in the electronics,
the current output can be driven high (22.50 mA) or low (3.75 mA). The
switch is set in the High position when it leaves the factory.
Current Output Internally or
Externally Powered
T ransmitter Security The Model 8732C has a switch that locks out any configuration changes
The Model 8732C 4–20 mA loop may be powered internally or by an
external power supply. The Internal/External power supply switch
determines the source of the 4–20 mA loop power. Transmitters leaving
the factory are set in the Internal position.
The external power option is required for multidrop communications
applications. A 10–30 V dc external supply is required, and the switch
must be reset. For further information on 4–20 mA external power, see
Connect 4–20 mA Loop External Power Source on page 2-20.
attempted on the transmitter. Any changes to the configuration are
disallowed whenever the switch is in the On position. Ho wever, the flow
rate indication and totalizer functions remain active.
With the switch in the On position, you may still access and review any
of the operating parameters and scroll through the available choices,
but no actual data changes are allowed.
The local operator interface (LOI) has a display lock function that will
restrict any changes to the configuration via the LOI only. (This
restriction applies to the totalizer functions as well.) This protection is
intended to prevent accidental activation of the optical LOI in the field.
Refer to page 3-5 for information about activating and deactivating the
display lock function. The display lock is not on when the Model 8732C
leaves the factory.
2-2
Installation
Changing Hardware
Switch Settings
FIGURE 2-1. Model 8732C
Electronics Board and Hardware Switches.
In most cases, it is not necessary to change the setting of the hardware
switches. If you need to change the switch settings, complete the steps
outlined below:
NOTE
The hardware switches are located under the cover opposite the terminal
block. Because changing their settings requires opening the electronics
housing, make every attempt possible to carry out these procedures away
from the plant environment to protect the electronics.
1. Disconnect power to the transmitter.
2. Unscrew and remove the electronics cover.
3. Identify the location of each switch (see Figure 2-1).
4. Change the setting of the desired switches with a small screwdriver.
5. Reinstall and tighten the electronics cover.
Hi/Lo Alarm
Software Lockout
On/Off
Internal External
Analog Power
8732-004AB
2-3
Rosemount Model 8732C Integral Mount Magnetic Flowmeter System
Mechanical Considerations
The mounting site for the Model 8732C Integral Mount Transmitter
should provide enough room for secure mounting, easy access to the
conduit ports, full opening of t he transmit ter covers, and eas y readability
of the local operator interface (LOI) screen (see Figure 2-2). The
electronics housing can be rotated on the flowtube in 90° increments.
This can be done by loosening the four mounting bolts on the bottom of
the housing, rotating the housing, and reinstalling the bolts. Be sure the
surface is clean and there is not a gap when returning the housing to its
original position.
The LOI can also b e ro tated i n 90 ° inc remen ts. Th is shou ld b e pe rf ormed
prior to installing the ma gnetic flowmeter system. Re fer to LOI Rotation
on page 3-3 for additional information.
FIGURE 2-2. Model 8732C Dimensional Drawin gs.
6.48 (165)
SST Tag
4.97
(126)
1.88
(47)
1.53
(39)
5.82
(148)
3.00
(76)
NOTE
Dimensions are in inches (millimeters).
2-4
FLOW
8732-1002A01B, 1002E01A, 1002G01A
Installation
Electrical Considerations
Before making any electrical connections to the Model 8732C, consider
the following standards and be sure to have proper power supply,
conduit, and other accessories.
Conduit Connections The Model 8732C Integral Mount Magnetic Flowmeter Transmitter
has two ¾–inch NPT conduit connections. If one of these ports is
not being used, it must be sealed with a conduit seal. In some
cases, conduits may also require drainage if moisture could build up in
the line.
Transmitter Input Power The Model 8732C Transmitter is designed to be powered by voltages
ranging from 90 to 250 V ac (50 to 60 Hz) or 15–30 V dc. Units powered
with an ac power supply should be connected to standard ac
connections for 90 V ac or 250 V ac. Units powered by a 15–30 V dc
power supply have special considerations.
DC Power Requirements Units powered with 15–30 V dc may draw up to 2 amps of current. As a
result, the input power wire must meet certain gauge requirements.
Table 2-1 and Table 2-2 show the maximum wire length for
corresponding supply voltages, wire gauges, and wire type.
TABLE 2-1. Length of Annealed
Copper Wires.
Types of
Power Supply Wires
Wire Gauge Milliohms/ft
Annealed Cu
20 10.15 1,230 625 365
18 6.385 1,955 990 585
16 4.016 3,110 1,580 930
14 2.525 4,950 2,515 1,485
12 1.588 7,870 3,995 2,360
10 0.999 12,510 6,355 3,750
Maximum Length of the Wire for Each
Corresponding Pow er Sup p ly So u rc e
30 V
Supply (ft)
24 V
Supply (ft)
20 V
Supply (ft)
TABLE 2-2. Length of Hand-drawn
Copper Wires.
Types of
Power Supply Wires
Wire Gauge Milliohms/ft
Hand-drawn Cu
18 6.640 1,880 955 565
16 4.176 2,990 1,520 895
14 2.626 4,760 2,415 1,425
12 1.652 7,565 3,840 2,270
10 1.039 12,030 6,110 3,605
Maximum Length of the Wire for
Each Corresponding Power Supply
30 V
Supply (ft)
Source
24 V
Supply (ft)
20 V
Supply (ft)
2-5
Rosemount Model 8732C Integral Mount Magnetic Flowmeter System
Figure 2-3 shows the surge current for each corresponding supply
voltage. For combinations not shown above, you can calculate the
maximum distance given the surge current, the voltage of the source,
and the minimum start-up voltage of the transmitter, 15 V dc using the
following equation:
Max. Resistance = (Supply Voltage –15 V dc) / Surge Current
Use Tables 2-1 and 2-2 to determine the maximum wire length
allowable for your power supply and maximum resistance.
FIGURE 2-3. Supply Current vs.
Input Voltage.
Supply Current (Amperes)
Surge
Nominal
IMPORTANT USER NOTES
Installation Category
Supply Wire Requirements
Disconnects
Overcurrent Protection
Transmitter Symbols
Input Voltage (Volts)
Installation (Overvoltage) Category II.
12- to 18-gauge wire. For connections in ambients in excess of 60° C
(140° F), use wire rated to at least 90° C (194° F).
The supply wires should be connected to the device through an external
disconnect or circuit breaker. The disconnect or circuit breaker should
be clearly labeled and located near the transmitter.
Model 8732 requires overcurrent protection of the supply lines.
Maximum rating of overcurrent devices are as follows:
Power System Fuse Rating Manufacturer
110 V ac 250 V; 1 Amp, Quick Acting Bussman AGCI or Equivalent
220 V ac 250 V;.5 Amp, Quick Acting Bussman AGCI or Equivalent
15 to 50 V dc 250 V; 3 Amp; Quick Acting Bussman AGCI or Equivalent
Caution Symbol — Check product documentation for details.
Protective conductor (grounding) terminal.
2-6
Installation
Environmental
Considerations
INSTALLATION
PROCEDURES
Handling
To ensure maximum transmitter life, avoid excessive heat and
vibration. Typical problem areas include high-vibration lines with
integrally mounted transmitters, warm-climate installations in direct
sunlight, and outdoor installations in cold climates.
Because the Model 8732C System requires external power, access to a
suitable power source must be ensured.
Overheating will damage the flowtube. Do not encapsulate the flowtube
with heating elements.
These installation tasks provide detailed mechanical and electrical
installation procedures.
All parts should be handled carefully to prevent damage. Whenever
possible, transport the system to the installation site in the original
shipping containers. The flowtube is shipped with end covers to protect
it from mechanical damage and normal unrestrained distortion. End
covers should not be removed until just before installation. Keep
shipping plugs in conduit connections until conduits are connected
and sealed.
All flowtube liners are vulnerable to handling damage. Never place
anything through the flowtube for the purpose of lifting or gaining
leverage. Liner damage can render the flowtube useless.
FIGURE 2-4. Model 8705
Flowtube Support for Handling.
Flanged flowtubes have different lifting and transportation guidance.
Refer to Figure 2-4 for correct handling techniques. Wafer style
flowtubes have no special lifting directions, however every precaution
should be taken to avoid liner damage.
½- to 4-Inch Flowtubes
6-Inch and
Larger Flowtubes
8732-0281B02A, C02A
2-7
Rosemount Model 8732C Integral Mount Magnetic Flowmeter System
Flowtube Mounting
Physical mounting of a flowtube is similar to installing a typical section
of pipe. Only conventional tools, equipment, and accessories (such as
bolts, gaskets, and grounding hardware) are required.
Calibration Rosemount magnetic flowmeter systems are wet-calibrated at the
factory and need no further calibration during installation.
Upstream/Downstream Piping To ensure specific accuracy over widely varying process conditions,
install the flowtube with a minimum of five straight pipe diameters
upstream and two pipe diameters downstream from the electrode
plane, as shown in Figure 2-5. This flowtube placement is usually
adequate to allow for disturbances created by elbows, valves,
and reducers.
FIGURE 2-5. Upstream and
Downstream Straight Pipe Diameter.
5 Pipe Diameters 2 Pipe Diameters
Flow
8732-0281G01A
2-8
Installation
Flowtube Orientation
Vertical Installation Vertical installation allows upward process fluid flow and is generally
preferred. Upward flow keeps the cross-sectional area full, regardless
of flow rate. Orientation of the electrode plane is unimportant in
vertical installations.
NOTE
As shown in Figure 2-6, avoid downward vertical flows where back
pressure is inadequate to ensure that the flowtube remains full.
FIGURE 2-6. Vertical Flowtube Orientation.
Flow
Flow
B
Horizontal Installation Horizontal installation should be restricted to low piping sections that
are normally full. Orient the electrode plane to within 45 degrees of
horizontal in horizontal installations. A deviation of more than 45
degrees of horizontal would place an electrode at or near the top of the
flowtube–making it more susceptible to insulation by air or entrapped
gas at the top of the flowtube.
FIGURE 2-7. Horizontal Flowtube Orientation.
Flow
8705-0005A01A, 0005A01B
8705-0005A01C
2-9
Rosemount Model 8732C Integral Mount Magnetic Flowmeter System
An inclined installation, as shown in Figure 2-8, is an acceptable
installation technique. This tends to keep the cross-sectional area full.
NOTE
As shown in Figure 2-8, avoid declining installations where back
pressure is inadequate to ensure that the flowtube remains full.
FIGURE 2-8. Incline or Decline Orientation.
Flow
Flow
B
8705-0005A01E, 0005A01F
The electrodes in the Model 8711 are properly oriented when the top
of the flowtube is either vertical or horizontal, as shown in Figure .
Avoid any mounting orientation that positions the top of the flowtube
at 45° from the vertical or horizontal position.
Model 8711 Mounting Position.
2-10
45° Electrode Plane
8711-8711E01A, 8711F01A
45° Electrode Plane
Installation
Flow Direction
FIGURE 2-9. Flow Direction.
Gaskets
The flowtube should be mounted so that the FORWARD end of the flow
arrow, shown on the flowtube identification tag, points in the direction
of flow through the tube (see Figure 2-9).
Flow
Flow Direction Arrow
8705-0005G01A
The flowtube requires gaskets at each of its connections to adjacent
equipment or piping. The gasket material selected must be compatible
with the process fluid and operating conditions, and must not damage
the liner.
FIGURE 2-10. Model 8705 Flange Gaskets.
Gasket
FLANGE GASKETS FOR ALL OTHER
FLOWTUBES
NOTE
To avoid possible flowtube damage, do not use metallic or spiral
wound gaskets.
BA
Gasket
Grounding Ring
Gasket
FLANGE GASKETS WITH NON-ATTACHED
GROUNDING RINGS
8732-0040F, 0038F
2-11
Rosemount Model 8732C Integral Mount Magnetic Flowmeter System
Flange Bolts
Flowtube sizes and torque values for Class 150 and Class 300 flanges
are listed in T able 2-3. Tighten flange bolts in the incremental sequence
shown in Figure 2-11.
Model 8705 Correct flange bolt tightening is crucial for proper flowtube operation and
life. All bolts must be tightened in the proper sequence to the specified
torque limits. Failure to observe these instructions could result in severe
damage to the flowtube lining and possible flowtube replacement.
Always check for leaks after tightening flange bolts. All flowtubes
require a second torquing 24 hours after initial flange bolt tightening.
FIGURE 2-11. Model 8705 Flange
Bolt Torquing Sequence.
4-Bolt
8-Bolt
TABLE 2-3. Model 8705 Flange Bolt
Torque Specifications.
12-Bolt
Nominal
Flowtube
Size (inches)
½
1
1½
2
3
4
6
8
10
12
14
16
18
20
24
30
36
20-Bolt
Torque the flange bolts
in increments according to
the above numerical sequence.
Flange Bolt Torque
Specifications in Foot-Pounds
Class 150 Flange Class 300 Flange
10
10
17
25
45
35
60
80
70
80
100
90
125
125
150
150
200
14-Bolt
8701-0589A
10
10
22
17
35
50
65
60
65
80
—
—
—
—
—
—
—
2-12
Installation
Model 8711 For Model 8711, the flowtube inside diameter should be centered with
respect to the inside diameter of the adjoining upstream and
downstream piping. This will ensure the flowmeter achieves its
specified accuracy. Mounting bolts supplied with 0.15 through 1-inch
(4–25 mm) line sizes are specifically sized to properly align these
flowtubes with the flange configurations specified. For 1.5 through
8-inch (40–200 mm) line sizes, two centering rings are supplied for
alignment purposes. Place the centering rings over the flowtube using
the following instructions as a reference. If you received two centering
sleeves, follow the steps described under Alignment with
Centering Sleeves.
Alignment with Centering Rings
1. Insert the two studs for the bottom side of the flowtube between
the pipe flanges.
2. Place the two centering rings over each end of the flowtube.
3. Place the flowtube between the flanges. Make sure that the
centering rings are properly placed in the studs. The
studs should be aligned with the markings on the rings that
correspond to the flange you are using.
4. Insert the remaining studs, and install the washers and nuts.
5. Tighten the nuts to the specifications listed in Table 2-4.
NOTE
On the 4- and 6-inch PN 10–16, the installer will need to insert the
flowtube with rings first and then insert the studs. The slots on this
ring scenario are located on the inside of the ring.
FIGURE 2-12. Alignment with Centering Rings.
Centering Ring
Centering Ring
Gasket for Tefzel/Teflon-lined
Flowtubes only
(Supplied by Customer)
Installation Stud s, Nut s, an d Washers
FLOW
2-13
Rosemount Model 8732C Integral Mount Magnetic Flowmeter System
Alignment with Centering Sleeves
Follow the instructions below for the 1.5- through 8-inch
(40 to 200 mm) line sizes if you received two centering
sleeves instead of centering rings:
1. Insert the two studs for the bottom side of the flowtube,
with the centering sleeves, between the pipe flanges.
2. Place the flowtube firmly against the two centering sleeves,
between the flanges.
3. Insert the remaining studs.
4. Install the washers and nuts.
5. Tighten the nuts to the specifications listed in Table 2-4.
TABLE 2-4. Flange Bolt
Torque Specifications.
Nominal Flowtube Size,
Inches (mm)
0.15 (4)
0.30 (8)
0.50 (15)
1 (25)
1.50 (40)
2 (50)
3 (80)
4 (100)
6 (150)
8 (200)
Applicable for Both Class 150 and 300 Flanges
Specifications in Foot-Pounds
Bolt Torque
5
5
5
10
15
25
40
30
50
70
FIGURE 2-13. Model 871 1 Flange
Bolt Torquing Sequences.
2-14
1
1
4
4-Bolt 8-Bolt 12-Bolt
3
2
the above numerical sequence.
8
4
6
Torque the flange bolts
in increments according to
5
3
7
2
12
8
4
10
6
1
5
9
3
7
11
2
Installation
Grounding
Grounding the flowtube is one of the most important details of flowtube
installation. Proper grounding ensures that only the voltage induced in
the flowtubes magnetic field is measured.
Model 8705 Use Table 2-5 to determin e which grounding option figure to use for
proper installation.
NOTE
Consult factory for installations requiring cathodic protection or
situations where high currents or high potential exist in the process.
TABLE 2-5. Model 8705 Grounding Installation.
Grounding Options
Type of Pipe
Conductive Unlined Pipe See Figure 2-14 Not Required Not Required See Figure 2-15
Conductive Lined Pipe Insufficient Grounding See Figure 2-16 See Figure 2-14 See Figure 2-15
Non-conductive Pipe Insufficient Grounding See Figure 2-18 See Figure 2-19 See Figure 2-17
FIGURE 2-14. Model 8705 Grounding
for Conductive Unlined Pipe and
Grounding for Conductive Lin ed Pipe
with Grounding Electrodes.
No Grounding Opt ions Grounding Rings Grounding Electrode s Lining Protectors
FIGURE 2-15. Model 8705 Gro unding for
Conductive Unlined Pipe with Lining
Protectors and Grou nding for Con ductive
Lined Pipe with Lining Protectors.
Lining
Protector Tab
Lining
Protectors
Earth
Ground
0281A02A
Earth
Ground
8732-0281J02A
2-15
Rosemount Model 8732C Integral Mount Magnetic Flowmeter System
FIGURE 2-16. Model 8705
Grounding for Conductive Lined
Pipe with Grounding Rings.
Earth
Ground
FIGURE 2-17. Model 8705
Grounding for Non-Conductiv e
Pipe with Lining Protectors.
FIGURE 2-18. Model 8705
Grounding for Non-Conductive
Pipe with Grounding Rings.
Grounding Rings
Lining
Protector Tab
Lining
Protectors
8732C-0281F02A
Earth
Ground
8732-00281K02A
2-16
Grounding Rings
Earth
Ground
8732-0281L02A
Installation
FIGURE 2-19. Model 8705
Grounding for Non-Conducti ve
Pipe with Grounding Electrodes.
Model 8711 Use Table 2-6 to help determine the grounding option required for
proper operation.
TABLE 2-6. Model 8711
Grounding Installation.
Grounding Options
8732-0281M02A
Type of Pipe
Conductive Unlined Pipe
Conductive Lined Pipe
Non-conductive Pipe
FIGURE 2-20. Model 8711
Grounding for Conductive Unlined Pipe
and Grounding for Conductive Lined
Pipe with Groundin g Ele ct rode s.
No Grounding Opt ions Grounding Rings Grounding Electrode s
See Figure 2-20 Not Required Not Required
Insufficient Grounding See Figure 2-21 See Figure 2-20
Insufficient Grounding See Figure 2-22 See Figure 2-23
Earth
Ground
8711-0360A01C
2-17
Rosemount Model 8732C Integral Mount Magnetic Flowmeter System
FIGURE 2-21. Model 8711
Grounding for Conductive Lined
Pipe with Grounding Rings.
Earth
Ground
FIGURE 2-22. Model 8711
Grounding for Non-Conductiv e
Pipe with Grounding Rings.
FIGURE 2-23. Model 8711
Grounding for Non-Conductive
Pipe with Grounding Electrodes.
Grounding Rin gs
Grounding Rings
8711-03660A01D
Earth
Ground
8711-03660a01B
2-18
Earth
Ground
8711-0368A01A
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