Installation With A Flow Housing (Sampling System) - Honeywell Searchpoint Optima Plus Operating Instructions Manual

MAN0905_Issue 7_07/17
3. Mechanical Installation
5. Fit the Sunshade / Deluge protection.
The Sunshade/Deluge protection should be clamped around the base of the Standard Weather Protection
with the longer overhang extending beyond the Standard Weather Protection. Ensure the clamp does not
cover the gas venting slot of the Standard Weather Protection.
6. Fit approved cable glands to the junction box cable entries as required to maintain the certification and
IP rating.
7. Fit approved blanking plugs to the unused junction box cable entries as required to maintain the
certification and IP rating.
8. Fit the external field wiring through the cable glands and secure.
9. Terminate the gas detector and field wiring in accordance with Chapter 4 (Electrical Installation).
10. Replace the junction box lid.
3.2.2 Installation with a flow housing (sampling system
Sampling systems should be designed to comply with the Searchpoint Optima Plus operating conditions,
for example, sample temperature, cleanliness, water content, dust content etc.
In addition, consider the following points: -
1. Flow rate should be between 0.7 litres per minute and 2 litres per minute.
2. A flow failure indicator should be included in the system.
3. If possible, use negative pressure to avoid the risk of pressurisation affecting the gas reading.
4. The choice of sampling lines should be appropriate to the application.
6mm o/d
Outlet
20
Searchpoint Optima Plus with optional HART
)
Inlet
output
®
Operating Instructions
2108M0550