Preface; Introduction; Disclaimer; Scope - Honeywell SEARCHLINE EXCEL PLUS Technical Manual

2 Chapter 1 Preface

1 Preface

1.1 Introduction
Searchline Excel™ was designed, engineered and tested to be a robust, reliable Open-Path Flammable Hydrocarbon Gas
Detector (OPFHGD) available from Honeywell to date and has subsequently proven itself in the field in many applications
worldwide.
Searchline Excel Plus and Searchline Excel Edge are third generation Open Path Flammable Hydrocarbon Gas Leak
Detectors taking these products to new heights of performance.
Searchline Excel Plus is an Open Path Flammable Hydrocarbon Gas Detector for safety applications with coverage from
2 m to 120 m (6 to 393 ft) range. Searchline Excel Edge is a new Perimeter Monitoring Open Path Flammable Hydrocarbon
Gas Leak Detector with coverage from 60 m to 330 m (196 to 1,082 ft) range. Both come with mounts and sunshades as
a complete system and are supported by alignment and test accessories.
Design and technology employed in Searchline Excel Plus and Searchline Excel Edge provide additional resistance to
certain adverse effects of the operating environment and non-ideal installation than previous generations of OPFHGDs.
A closer variability across the core hydrocarbon gasses, full Performance and Safety Instrumented Certification and
advanced diagnostics make Searchline Excel Plus and Searchline Excel Edge the high standard in flammable gas leak
detection. These products can outperform both NDIR and laser-based open path flammable hydrocarbon gas leak
detectors even in harsh environments, maintaining uptime after some others have ceased to function.
With careful consideration of the intended operating environment and the installation design, the installer/operator can
maximise the reliability, functionality and performance achieved with Searchline Excel Plus and Searchline Excel Edge with
functionality improved, even in many adverse environmental conditions.
This is achieved via advanced optical element design, increasing the beam size and tightening the profile and improving
the optical coupling to increase uptime in even foggy environments.
A tighter response to core hydrocarbon gasses and performance certification improves operational parameters.
Advanced diagnostics includes a real-time monitoring of alignment to indicate non-optimal alignment and so allow peak
performance to be maintained.
Before designing or specifying an installation for Searchline Excel Plus or Searchline Excel Edge, it is strongly
recommended that the installation design authority reads all of this manual and considers how the information and
recommendations provided can be applied to their installation(s) and the overall Safety Case.
If you have any queries concerning your installation design, please contact Honeywell Analytics or your local agents.
1.2 Disclaimer
Searchline Excel Plus and Searchline Excel Edge Open Path Flammable Hydrocarbon Gas Detectors are flammable
hydrocarbon gas detection systems incorporating a cooperative transmitter/receiver pair to identify the presence of a range
of flammable gases. Honeywell is not liable for any gas leak investigation or service call carried out or arranged in response
to a Searchline alarm. Honeywell Analytics is not responsible for installation and/or use of its equipment if not done in
accordance with the appropriate issue and/or amendment of this manual. Please note that product designs may change
from time to time and the images in this manual should only be used as a guide.
Honeywell Analytics is committed to ensuring that customers achieve reliable operation of their Searchline Excel Plus
and Searchline Excel Edge Open Path Flammable Hydrocarbon Gas Detectors. For this reason, Searchline Excel Plus and
Searchline Excel Edge should only be installed by fully trained personnel (trained by Honeywell Analytics or a Honeywell
Analytics authorised trainer).
1.3 Scope
This Technical Manual describes how to install Searchline Excel Plus and Searchline Excel Edge detectors and how to
commission and operate these in order to ensure correct and optimal performance.
1.4 How to Use This Manual
This Technical Manual is structured to cover the instruments, installation (mechanical and electrical), set-up and
commissioning, operating and maintenance. This manual is available in PDF format.
1.5 Copyright & Trademarks
This document is the copyright of Honeywell Analytics.
Searchline Excel is a Honeywell trademark.
1.6 Patents
The Searchline Excel Plus and Searchline Excel Edge Open-Path Flammable Hydrocarbon Gas Detectors use patented
technology.
Searchline Excel™ Plus / Searchline Excel™ Edge – Technical Manual