Table of Contents
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Manual
00809-0100-4925
1
Introduction
1.1
Using this manual
The sections in this manual provide information on installing, operating, and maintaining
the Rosemount 925FGD Fixed Gas Detector.
The manual sections are organized as follows:
Configuration
detector.
Installation
Sensor calibration
calibrating the Rosemount 625 sensor modules.
Operation and maintenance
maintenance of the detector.
Notifications, faults, and diagnostics
warnings, faults, and diagnostics provided by the Rosemount 925 transmitter as well as
troubleshooting information.
The appendices contain supplemental information, such as model specifications and
product certifications.
1.2
Definition of models and terms
%/volume
HART
IP filter
IR
LED
LEL
LOI
PV
Rosemount 625
Rosemount 625ND
Rosemount 925
Rosemount 925FGD
Rosemount 925FGD
contains information on the factory default and configurable settings for the
contains information on the proper installation of the detector.
provides information on various methods and best practices for
provides information on the continued use and periodic
Percentage concentration per volume
Highway addressable remote transducer: a digital communication
®
protocol
Ingress protection filter
Infrared
Light-emitting diode
Lower explosive limit
Local operator interface
Primary variable
Sensor housing
Non-dispersive infrared sensor module
Gas detection universal transmitter
Fully-assembled gas detector, consisting of transmitter, sensor
housing, and sensor module.
provides information on all statuses, notifications,
Introduction
March 2023
5
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