Reference Manual
00809-0100-4191, Rev BA
August 2001
Model 470 Transient Protector
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Reference Manual
00809-0100-4191, Rev BA
August 2001
Model 470
Model 470 Transient Protector
NOTICE
Read this manual before working with the product. For personal and system safety, and for
optimum product perf ormance, make sure you thoroughly understand the contents bef ore
installing, using, or maintaining this product.
Within the United States, Rosemount Inc. has two toll-free assist ance numbers:
Customer Central
Technical support, quoting, and order-related questions.
1-800-999-9307 (7:00 am to 7:00 pm CST)
North American Response Center
Equipment servic e needs.
1-800-654-7768 (24 hours—includes Canada)
Outside of the Un ited States, contact your local Rosemount representative.
The products described in this document are NOT designed for nuclear-qualified
applications . Using non-nuclear qualified products in applications that require
nuclear-qualif i ed hardware or products may cause inaccurate readings.
For information on Rosemount nuclear-qualified products, contact your local Ro se mount
Sales Representative.
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Reference Manual
00809-0100-4191, Rev BA
8/16/01
Model 470
Table of Contents
SECTION 1 Introduction
SECTION 2 Installation
SECTION 3 Operation
SECTION 4 Hardware and Software Maintenance and Troubleshooting
APPENDIX A Reference Data
Overview of Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Cathodic Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Return of Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
470D and 470C Transient Protector . . . . . . . . . . . . . . . . . . . . . . . . . .A-1
470L and 470J Transient Protector . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Hazardous Locations Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Dimensional Drawing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
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Model 470
Reference Manual
00809-0100-4191, Rev BA
8/16/01
TOC-2
Reference Manual
00809-0100-4191, Rev BA
August 2001
Section 1 Introduction
Model 470
OVERVIEW OF MANUAL The Rosemount
transients induced by light ning, welding, heavy el ectrical equipment , or switch
gears. The Model 470 continues to protect transmitters even after repeated
strikes of up to 5,000 amps. In laboratory simulated lightning tests, t he Mod el
470 withstood 2,000 amps or 10,000 volts without damage to either the
transient protector or the transmitter.
Models 470D and 470C are designed to protect two-wi re trans mitter s that are
capable of withstanding 120 volts from lead to case, and can also be used to
protect the receiver or RTU. Models 470L and 470J are designed to protect
low power or other three-wire transmitters.
The weatherproof, st ainless steel-cased protector functions under sever e
environmental condit ions including high temperature and humidity.
®
Model 470 Transient Protector prevents s damage from
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