Det-Tronics EQP Fire and Gas Detection/Releasing System SAFETY MANUAL - Manual (Page 9)

5.1 95-8599 7
EQP Safety Device Diagnostics
The EQP Safety devices (EDIO/AIM/X3301/Eclipse)
automatically carry out a number of diagnostic checks
on a continuous basis. All checks are completed at
least once every two hours (diagnostic test interval).
Failure of any field device diagnostic will cause the
trouble relay on the Controller to open. It is the user’s
responsibility to determine what course of action is
appropriate for their situation when the Controller’s
trouble relay opens.
The internal diagnostic tests carried out by EQP Safety
devices are sufficient to meet the requirements for use in
a low demand SIL 2 safety function. Proof testing, which
is the responsibility of the user, is discussed in the “Proof
Testing” section of this manual.
X3301-SIL
The SIL EQP Model X3301 flame detectors are
configured with the use of S 3 software and the device
is safety rated at all available sensitivity settings. The
fire alarm status should be used as the safety input
signal for user logic. System “Proof Testing” should be
conducted after any change in configuration is made.
Note
Refer to the X3301 Safety Manual (number
95-8582) for specific requirements and
recommendations applicable to the proper
installation, operation, and maintenance of all
SIL-Certified X3301 IR flame detectors.
MODEL PIRECL-SIL
The SIL EQP Model PIRECL combustible gas detectors
are configured via S 3 software and the device is safety
rated. High and low alarm status should be used as the
safety input signal for user logic. The floating point gas
concentration value is available for information, but is not
safety rated and should not be used as part of the safety
function. System “Proof Testing” should be conducted
after any change in configuration is made.
Note
Refer to the Model PIReCL Safety Manual
(number 95-8630) for specific requirements
and recommendations applicable to the proper
installation, operation, and maintenance of all
SIL-Certified PIReCL IR gas detectors.
AIM-SIL ANALOg INPUT MODULE
The SIL AIM module is configured via S
3 software and
the device is safety rated. High and low alarm status
should be used as the safety input signal for user logic.
The SIL AIM module provides eight channels of
configurable analog input. The AIM Module is specially
designed to meet the requirements of IEC 61508 and
expands the input capability of the Det-Tronics Eagle
Quantum Premier System.
Each channel of the AIM safety module is an input that
can accept analog devices such as gas detectors. It is
the responsibility of the user to select suitable SIL rated
devices to connect to the AIM.
The EQP Controller continuously monitors the status of
the AIM. Input channels are supervised for out of range
signals.
Input Range and Configuration
The user shall enable out-of-range checking, with the
out-of-range low value configured to be at least 1mA,
and the out-of-range high value to be less than 24
mA and less than or equal to the connected device
maximum output minus safety accuracy.
All AIM channels intended for use must be configured
and downloaded from the EQP controller, otherwise they
will be ignored.
For complete information regarding system overview,
installation, operation, specifications, and configuration
of the AIM Analog Input Module, refer to the AIM Module
specification data sheet 90-1183 and/or the EQP
instruction manual number 95-8533.
EDIO-SIL ENhANCED DIgITAL INPUT/OUTPUT
MODULE
The SIL EDIO module provides eight channels of
configurable digital input or output. The EDIO Module
is specially designed to meet the requirements of IEC
61508 and expands the input and output capability
of the Det-Tronics Eagle Quantum Premier System.
The EQP Controller continuously monitors the status
of the EDIO and controls the outputs with EQPSL
communications.
Each channel of the EDIO safety module can be
configured as an input to accept fire detection devices
such as manual alarm stations, or as an output for
signaling or releasing. Both input and output circuits
can be configured for supervised (line monitoring) or
unsupervised operation. Channels are only SIL rated
when configured for the supervised mode of operation.
Unsupervised channels can be used for non-safety
related uses and are considered non-interfering. It is
the responsibility of the user to select suitable SIL rated
I/O devices to connect to the EDIO.