FlameSpec
IR3-H2
User Manual
F150V0020.04
For more information & Technical support: (+1) 714-671-8500 · [email protected]
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Further details about the response characteristics of the detector at the different sensitivity settings
can be found in Appendix A.
3.2
Ultra-Fast Detection
The ultra-fast detection feature allows detection of fireballs and explosions at 40 milliseconds. This
feature can be disabled or enabled regardless of the alarm delay configuration.
3.3
Alarm Delay
When a flame is detected, the flame detector delays the execution of the alarm outputs by the
configured time period. After this time delay, the detector re-evaluates the situation. If a flame is still
detected the alarm outputs are activated.
3.4
Alarm Latch
If alarm latch is enabled, the detector outputs will remain in alarm mode even after a flame is no
longer detected. To return the detector outputs to normal mode the detector must be powered
down and restarted.
3.5
Window Heater
The detector is equipped with a heater to prevent condensation and icing on the window. If enabled,
the heater is operated automatically depending on temperature.
3.6
Modbus Address
The detector can communicate with the “FGD communicator” software using a Mod
bus RTU
compatible protocol on RS-485. This protocol allows for a network of detectors to be connected,
each with a unique Modbus address. The address of the detector can be set to any value in the range
1
–
247.
3.7
Manual BIT
–
Alarm Output Test
When enabled, the alarm outputs are activated when a
Manual
BIT is initiated. See section 5.2
–
” for details.
WARNING
Make sure to disable all fire extinguishing actions or alarms connected to the detector when the
manual BIT is initiated and the “Manual BIT –
Alarm Output Test” is enabled as the
Manual BIT will
set the 0-20mA terminal to 20mA and close the alarm relay.
