Oldham MX 48 Controller Literature Sheet (English)

Oldham MX 48 Controller Literature Sheet (English)
Gas monitor
Measurement and alarm units
4 gas alarm thresholds
MX 48
Up to 8 independent channels
Easy operation
Programming
by keypad or PC
Serial/analogue
output
Compliant
with European Standards
ATEX
Global fire and gas detection solutions
Together we’ll make
your operations safe
The MX 48 is designed to protect your equipment and personnel
in environments liable to contain flammable or toxic gases.
Equipped with up to 8 independent channels, the MX 48 can be used
to control different types of detectors. In fact, this unit is compatible
with all the detector-transmitters in the Oldham range and any detector
with a standard 4-20 mA output.
Exemple d’application : centre de production
MX 48 : designed to meet your needs
The MX 48 caters for a wide range of possible uses, adapting to your safety requirements.
The variety of programming options, by keypad or computer, ensures it meets specific user needs. Furthermore,
The MX 48 is open-ended, so that if required, subsequent extensions or modifications can be added.
Easy to install and very flexible to use, the MX 48 can handle a large quantity of applications to cater for your technical requirements
at lower costs
MX 48 : measurement and alarm unit
The MX 48 is designed for prevention, action and detection, it :
• monitors detectors
• displays the nature, concentration, measurement and unit of the gas detected (in cyclic mode)
• triggers alarms if the measurement exceeds thresholds
• actuates relays for the control of warning devices, valves and mimic panels
• indicates faults
• transmits data via analogue and serial outputs.
Compliant with european standards
• European standards EN 50054, 50081, 50082
and low voltage directives.
• Enhanced ergonomics and performance.
Enhanced ergonomics and performance
User-friendly display panel
5 indicator lights per channel :
• on/off
• AL1
• AL2
• AL3
• Fault
Fixed or scrolling LCD display on two
lines of 16 characters
4-key keypad
Triple alarm level
Great reliability
• 3 individually adjustable alarm levels
• Alarms 1 and 2 instantaneous or governed by control logic
of 2-speed ventilation systems
• Alarm 3 time-delayed or based on mean calculation
• Local or remote acknowledgement, useful in control room
• Fault monitoring
• Possibility of transmission of audio alarm to the detection site
• Testing of indicator lights and integrated display panel
• Transmission of measurements, alarms, failures and relay
status via RS232 or 485 output for each channel
• Relays programmed in positive or negative safety mode
• Inhibition of relays in maintenance mode of limited duration
and signalled by an indicator light
Simple operation
• 4-20 mA input so that any type of standard detector can be
connected, in addition to Oldham detectors
• Common serial output in J-Bus format and analogue outputs
per channel
• Management of failures and alarms
by micro-controller and internal software
Safer unit
• Efficient protection against radio frequencies and industrial
interference, to avoid false alarms in environments subject to
electrical interference (EMC compliance)
• Integrated protection against human operating errors
• Protected access to programming
Pre vention of the r isks
Technical characteristics
• OLDHAM SA
Presentation :
• Wall mounted
Function :
• Gas monitor
Capacity :
• Up to 8 channels
Display :
• Fluorescent, 2 lines of 16 characters
Resistance
In loop mode :
• 4-20 mA : 2 or 3 wires - 56 Ω
• Average line length (in metres at 20°C for a 1,5 mm2
conductor)
• Flammable : 1,000 m/ 4-20 mA - 2,000 m
• Fixed or scrolling
Signal output :
ALARMS
Fault alarm :
• Action on common relay
Power supply :
• 3 independent thresholds per channel (Red LED’s)
• Power consumption : 200 VA or 150 W
• Manual or automatic reset
• 2 relay outputs per channel common relay on alarm 3
• 80 db at 30 cm
Relay output :
• 2 gas alarm relays per channel
• 109 to 122 V AC or 207 to 277 V AC
• 21 to 31 V DC
• 3rd threshold time-delayed or mean value
Audio Alarm :
• Analogue 4-20 mA per channel,
load resistance : 600 Ω max.
• Serial RS 485 or 232 in J-BUS format, opto-insulation
an option
• Yellow LED on each channel
Gas alarm :
• Flammable, 3 wires - 32 Ω
Miscellaneous :
• Acknowledgement : local or remote
• Operating temperature : -20°C to +55°C
• Relative humidity 5% to 95%, uncondensed
• Compliant with European Standards 50054, 50081
and 50082
• 1 relay common for alarm 3
• Programmable positive or negative safety on alarm relay
Protection :
• IP 65
• Positive safety on failure
Weight :
• 11 Kg
• Programmable NO or NC
Dimensions :
• H 340 x W 500 x D 89 mm
MEASUREMENT INPUT
Type of Detectors :
• Flammable Bridge Type
Link :
80,5
500
• Flammable transmitter, toxic or oxygen detector,
(type 4-20 mA)
• 2 or 3 wires, active, with display according to type
of detector
340
340
89
MX 48
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Plant and head office : Z.I. Est - rue Orfila - B.P. 417 - 62 027 ARRAS Cedex FRANCE
Tel. : 33 3 21 60 80 80 Fax : 33 3 21 60 80 00
Web site : http://www.oldhamgas.com
Your agent or retailer
AMERICAS
Tel.: +1 412 788 4353
Fax: +1 412 788 8353
[email protected]
AUSTRALIA / NZ
Tel.: +61 2 8870 3400
CZECH REPUBLIC
Tel.: +420 234 622 222/3
GERMANY
Tel.: +49 231 / 9241 0
ITALY
Tel.: +39 011 3801371
EXPORT DEPARTMENT :
PHONE : 33 3 21 60 80 80 - FAX : 33 3 21 60 80 05
ASIA PACIFIC
Tel.: 86 10 8497 3970
Fax: 86 10 8497 3971
[email protected]
MIDDLE EAST
Tel.: +971 50 455 8518
NETHERLANDS
Tel.: +31 76 5427 609
EUROPE
Tel.: 33 3 21 60 80 80
Fax: 33 3 21 60 80 00
[email protected]
SINGAPORE
Tel.: +65 6561 7377
SWITZERLAND
Tel.: +41 26 652 51 18
UNITED KINGDOM
Tel.: +44 0 1782 562002
This is not a contractually binding document. OLDHAM SA reserves the right to make any changes, without notice, to the technical characteristics of its equipement. Designed and created by Audace 33 3 21 135 600. Edition ref.: MX48GB05 - JANUARY 2007
Manufacturer :
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