820-0003
IPES IR3 Flame Detector
Operating Manual
Page
8
of
37
3.0 Safety Considerations
Guidelines
For maximum safety:
•
Only persons who have thoroughly read and understood this manual, are trained in safety techniques, and have
electric-safety certificates are permitted to install and operate the IPES-IR3.
•
Never operate the IPES-IR3 if the casing is damaged.
•
Do not open, separate or disassemble the IPES-IR3 when energized.
•
Refer to the Appendices and diagrams in this manual to ensure that the wiring is in compliance with local
ordinances and the NEC.
•
Perform regular testing and maintenance as outlined in the Maintenance section.
•
Ensure that fire-alarm and fire-extinguishing systems and controls are switched off before any testing or
maintenance to avoid unwanted operation of alarms and fire-extinguishing equipment.
Also see the individual sections in this manual for relevant specific safety guidelines.
Explosion Protection
Means
The table below describes design features that protect the IPES-IR3 against explosions:
Feature
Protection Means
Enclosure of
Current Carrying
Parts
The casing includes spigot joints with controlled gaps
to meet explos
ion‐proof requirements for installation
in Class I, Division I, Group B, C and D, and T4 locations.
Case Mechanical Strength
The high mechanical strength of the case is able to
withstand high explosive pressures without rupture or
failures of mechanical parts. The case design is in
accordance with FM 3600 and FM 3615.
Manufacturing Control
Of Casing
Important parameters include:
●
Maximum width and minimum length of spigot joints
●
Surface roughness of the joined parts
●
The number of complete intact threads at the
conduit entry point
Ignition Temperature
The
ignition
temperature
of
the
surrounding
environment is limited by the outside surface
temperature of the housing, which does not exceed
275°F (135°C).
Securing of Bolts,
Joints and Grounding
Spring washers, lock washers, and lock nuts maintain the
integrity of the bolted connections by preventing
loosening of the bolts.
Joined Parts Protection
Anti‐seize
lubricant is applied on the critical joints as
described on Appendix A.
Casing Ingress Protection
The design of the casing is protection class IP 66 in
accordance with IEC
60529‐004.
Sealing Cables at
Conduit Entry
Use approved hazardous location sealed conduit fittings.
For outdoor installations, ensure sealing meets IP66
requirements.
Before installing a
nd operating the IPES‐IR3, be sure to read this
entire manual. Failure to follow these guidelines could result in
impaired product performance and safety hazards.
