Planning
55
Building Technologies A6V10209291_f_en_--
Fire Safety & Security Products 05.02.2010
4.3.1.2 CO monitoring
CO monitoring compares the current measured CO concentration with a preset
threshold value.
Alarming takes place when the current measured CO concentration temperature
exceeds the set threshold value.
You can set the CO concentration threshold value in stages of 5 ppm between
20 and 600 ppm.
Hysteresis ranges
You can set two hysteresis ranges:
A fixed hysteresis range of 5 % of the threshold value.
‒ For low CO concentrations, a minimum hysteresis range of 2 ppm is
specified.
‒ For high CO concentrations, the hysteresis range is limited to 15 ppm.
Instead of a having fixed hysteresis range, the average CO concentration over
the last 15 minutes is calculated. Alarming takes place if the threshold value is
exceeded.
‒ The hysteresis range is permanently set to 6 ppm.
4.3.2 Configuration
The Technical Ambient Supervision Alarm is configured on the control panel using
the configuration tool. You can configure the detector as follows:
Settings for temperature monitoring:
Adjustable values Notes
Normal hysteresis range Hysteresis range of 1 °C
Large hysteresis range Hysteresis range of 5 °C
Temperature [°C] + 30 Permissible temperature range: -20 … +50 ℃
Temperature undershot/
temperature exceeded
Selects whether the output signal should be sent when the
set threshold value is undershot or exceeded.
Settings for CO monitoring:
Adjustable values Notes
Normal Hysteresis range of 5 % of the threshold value, max. 15 ppm
Slow Average CO concentration over 15 minutes, hysteresis
range of 6 ppm
CO concentration in stages
of 5 ppm
Permissible CO range: 20 … 600 ppm
To Next Page
Loading...
