Duomo BX308 XP Краткое руководство по эксплуатации - Страница 4
Просмотреть онлайн или скачать pdf Краткое руководство по эксплуатации для Контроллер Duomo BX308 XP. Duomo BX308 XP 17 страниц. 8 sensor gas detection controller
Печатать страницуBX308 XP Gas Detection Controller
Overview
The BX308xp is a control unit capable to control the concentration of gas up to 8 input channels, each of which can
be connected via a 4-20 mA communication to a toxic, explosive or oxygen gas detection sensor. The control unit is
built with the following I/O interfaces.
- Power supply 110/240 VAC
- Controls up to 8 remote sensors,
- Manages explosive and toxic gases.
- Manges up to 8 remote expansion cards: relay card
- Manual alarm managed by remote button
- Various possibilities of parameter configuration
- Status indications with LED
- Output signals in alarm supplied via 4 relays.
- Fault output signals supplied via 1 relay
- Output signals in fault supplied via 1 relay
- Output signals for the external siren supplied via 1 relay
- Wall support 9 DIN modules.
- Conforms to the operating regulations EN60079-29-1
BX308xp status conditions
Depending on the input signal of the remote sensors, the control unit can be found in the following working conditions:
NORMAL MODE: Controller is receiving signal from the sensors corresponding to a gas level of 0-9% of LEL (explosive
gases) and 0-300 ppm (toxic gases). Buzzer and Relays are off and no alarm or fault LEDs illuminated.
PRE-ALARM: Controller is receiving signal from the sensors corresponding to an explosive gas level of 5-9% of LEL
(explosive gases) for toxic gases set from 75 to 135ppm (toxic gases). The relays switch and the red pre-alarm LED is
illuminated. The buzzer sounds and the display shows the % of gas detected.
1st ALARM: the control unit receives a signal from the sensors corresponding to an explosive gas level set for each probe
between 10% and 20% of the LEL; for toxic gases set from 150 to 300 ppm. The relays switch and the red general alarm
LED lights up. The buzzer sounds and the display shows the % of gas detected.
2nd ALARM: the control unit receives a signal from the sensors corresponding to an explosive gas level set for each probe
between 10% and 50% of the LEL; for toxic gases set from 150 to 300 ppm. The relays switch and the red general alarm
LED lights up. The buzzer sounds and the display shows the % of gas detected.
MAIN ALARM: the control unit receives a signal from the sensors corresponding to a gas level higher than 20% LEL for
explosive gases and greater than 300 ppm for toxic gases. The main alarm relay also changes state and the red "20/300"
LED also lights up, the "General alarm" LED flashes. The general alarm relay is energized. The buzzer is on (high frequency).
OVER / UNDER RANGE: the control unit receives an under / over range signal. This condition is signaled by two different
flashing frequencies of the explosive gas LEDs. The relays are off and no alarm or fault LED lights up. The buzzer is off.
t: 01905 797989
e: [email protected] | w: www.duomo.co.uk
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