Det-Tronics PIRECL Infrared Hydrocarbon Gas Detector PointWatch Eclipse SAFETY MANUAL - Manual (Page 3)

5.1 95-8630 3
iNSTALLATioN
NOTE
For complete information regarding performance,
installation, operation, maintenance and
specifications of PIRECL, refer to the PIRECL
instruction manual.
No special or additional detector installation
requirements exist above and beyond the standard
installation practices documented in the PIRECL
instruction manual.
Environmental operating specifications for the PIRECL
are applicable as published in the general specifications
section in the PIRECL instruction manual. The device
shall not be exposed to environments that exceed its
specified environmental limits.
The PIRECL operating power distribution system
should be designed and installed so that the terminal
voltage does not drop below 18 Vdc when measured
at any specific location. The external system providing
power to the PIRECL must have over-voltage protection
that ensures supply voltage does not exceed 33 Vdc.
The user shall correctly install all shielding and
grounding for the device and ensure that maximum
cable lengths are not exceeded.
NOTE
All safety functions of the PIRECL are active
within 2 minutes of power-up without any user
action required.
CoMMoN MiSUSE SCENArioS
Refer to the Installation, Startup, and Maintenance
sections of the instruction manual for information on
avoidance and resolution of common misuse scenarios.
No special application restrictions are necessary to
meet the safety certification requirements.
NOTE
If the user suspects that damage or misuse has
occurred to the PIRECL, a full proof test shall be
performed.
GENErAL APPLiCATioN CoNSiDErATioNS
• The user shall understand the effects of and limit the
number of devices that are voted to declare alarm.
• The user shall understand the effects of the Alarm
Level set points and limit the threshold so that desired
SIF hazard detection is achieved.
STArT-UP AND CoMMiSSioNiNG
Commission Personnel
The Safety Certified PIRECL can be commissioned by
any qualified person with knowledge of gas detection
instruments and the configuration device being used.
Refer to the Start-Up and Commissioning section
provided in the PIRECL instruction manual.
relay Configuration requirements
The end user must provide transient and current
limiting on the output contacts of the relays. The
maximum relay contact output must be limited to
2 amperes at 30 Vdc. The load must be a resistive
load. The user must protect against transients by
using standard protection methods such as proper
grounding of shielded wire and separation of relay
load wires from other lines carrying rapidly switched
high current (e.g. large motor power supply lines).
If the 4-20 mA analog output is not being monitored
for fault conditions, the status of the fault relay must be
monitored and appropriate action taken.
The fault relay is configured for normally energized
operation.