BX308XPGasDetectionController
t: 01905 797989
BX308 XP 8 Sensor Gas Detection Controller
FEATURES
■Eight sensors
■Datalogging Facility
■Wall mounted
■Illuminated digital display
■Detection of Toxic 0-300ppm / Explosive Gas(es)
0-20%LEL
■4-20mA signal sensor input
■2 alarm stages - Pre-alarm and main alarm
■IP65 protective rating
■CE certied and approved to EN 50194 EN 50291 EMC
EN50270
■3 years guarantee
OVERVIEW
The control unit BX308 XP has been designed and built to meet
the current requirements of the Market and in compliance with
European Standard for checking gas presence in a versatile and
innovative using conventional sensors.
Up to 8 remote sensors from 4-20mA can be connected in
conventional mode for a single area. Gas concentration measured
by each sensor is sequentially shown on display, with a location
description.
When one of the connected sensors exceeds pre-alarm or main
alarm setpoints, the control unit activates the internal audible alarm,
depending on the concentration of gas measured, and shows on the
display the number of the sensor the amount of gas measured and
its origin; the alarm triggered is saved in a memory (Datalogger).
The data stored can be printed (up to maximum 50 events). The
control unit features two levels of alarm: 1st level, pre-alarm. This
data is variable. The technician can modify pre-alarm intervention
for every sensor according to the type of plant to be controlled.
The level can be selected from 5% to 9% of L.E.L. or from 75 to 135
ppm. Main alarm is set from 10-20 % of L.E.L. or 150-300ppm. The
control unit is equipped with a main alarm relay which can be set
with or without Positive Safety Switch to enable further independent
control of a solenoid valve. Finally, the control unit allows the user to
control the actual operation of the sensors coupled.
SPECIFICATION
Power
Power Supply 230V (enclosure) 12VDC module
Secondary Battery (Not supplied) 12VDC ± 10% Max 2.2Ah
Battery Charger Charger Capacity 2.2Ah
Power Consumption 12V - 25W Maximum
230V - 30W Maximum
Relay Contact Range 10A resistive 230VAC, 5A 30VDC resistive
Alarm Settings
Pre-Alarm No.1 Can be set from 5% LEL (75ppm) to 9% LEL (135ppm)
Main Alarm 10-20% LEL / 150-300ppm
Sensor Fault Short circuit, interruption, sensor deterioration
Technical Specication
Dimensions Width 360mm |Height 320mm |Depth 135mm
Weight 260 grams
Display Illuminated digital display
Mounting Wall & Panel mounted
Input Signal 4-20mA
Device Precision 1% FS
Reaction Time <2 seconds
Working Temperature -10°C to 45°C
Start-up Self-Diagnostic Delay 90 seconds
Protective Rating IP65
Conguration
Positive Safety Yes (General functions menu)
Main Alarm Relay Actuation Yes (General functions menu)
Gas Type Selection Yes (Sensors menu)
Timed Sensor Test Facility Yes
Emergency Stop Connections Yes
O2Compatibility as Standard Yes (Sensors menu) - Increase/Depletion
Perhipheral Specication
No. of Remote sensors 8 sensors
Maximum Sensor distance 100m
Cable Diameter for sensors 1mm2CSA
(Screened and earthed at the controller end)
Compatibility
Sensor Compatibility All Duomo Sensors (Explosive, toxic gas and oxygen)
Approvals, Certications and Guarantee
Approvals EN 61010-1, EN 50270, EN 50271, EN 45544-3,
EN 60079-29-1, EN 50104
Guarantee 3 years as standard
8
Sensor
Conventional
8888
Illuminated
Digital Display
4-20mA
IP65
