Mechanical Installation; Siting; Installation - Honeywell Searchpoint Optima Plus Operating Instructions Manual

MAN0905_Issue 7_07/17

3. Mechanical Installation

Installation must be in accordance with the recognized standards of the appropriate authority in the
country concerned. For Europe see EN60079-14, EN60079-29-2, and EN61241-14. For installations
in North America, the National Electrical Code (NFPA 70) should be strictly observed. Elsewhere the

3.1 Siting

The placement of gas detectors should be determined following the advice of experts having specialist
knowledge of gas dispersion, experts having knowledge of the process plant system and equipment
involved, safety personnel and engineering personnel. The agreement reached on the location of detectors
should be recorded.
Guidance on the positioning of gas detectors to provide the best detection coverage is contained in
IEC/EN 60079-29-2 and other national Codes of Practice. It is recommended that the installation designer
consults these Codes of Practice when determining where detectors are to be located.
In addition, consider the following points: -
1. Searchpoint Optima Plus must be mounted horizontally to reduce the risk of contamination building up
on the optical surfaces.
2. Searchpoint Optima Plus is certified and specified for operation in ambient temperatures from -40°C
to +65°C. Operation of the unit outside of this temperature range invalidates the certification and the
warranty.
3. Searchpoint Optima Plus is specified for operation in environments where the rate of change of unit
temperature is less than 3°C / minute. Exceeding this rate of change of temperature will cause the unit
to report a fault and may cause permanent damage.
4. Searchpoint Optima Plus has been vibration tested to the levels specified in EN60079-29-1. Do not
install units in locations where the vibration exceeds this level.
5. Where possible, locate detectors away from sources of airborne contaminants and steam /
condensation, which could build up on the optical surfaces.
6. In extreme environmental conditions, consider the use of additional weather protection options
(see Introduction, Weather Protection Accessories).
Please contact Honeywell Analytics for further advice if required.

3.2 Installation

Note: Searchpoint Optima Plus must be mounted horizontally to reduce the risk of contamination building
up on the optical surfaces.
The Standard Installation section describes general mounting and installation. Additional information is
provided for using Searchpoint Optima Plus in a sampling system or a duct, and for the use of the Remote
Gassing Cell.
WARNING
appropriate local or national regulations should be used.
Searchpoint Optima Plus with optional HART
18
output
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Operating Instructions
2108M0550