MX 48 8 Channel Controller • • • • Easy operation Up to 8 channels Programming by keypad or PC Serial/analog outputs T he MX 48 is designed to protect your property and personnel in environments likely 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 Industrial Scientific range and any detector with a standard 4-20 mA output. www.indsci.com MX 48 Designed To Meet Your Needs The MX 48 caters to 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 multiple applications to accommodate your technical requirements at lower costs. Measurement and alarm unit The MX 48 is designed for prevention, action and detection. The controller: • monitors sensors and 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 analog and serial outputs • has enhanced European standards EN 50054, 50081, 50082 and low voltage directives Series Enhanced Ergonomics and Performance User-friendly display panel Fixed or scrolling LCD display on two lines of 16 characters 5 indicator lights per channel: • on/off • AL1 • AL2 • AL3 • Fault 4-button keypad Triple alarm level • 3 individually adjustable alarm levels • Alarms 1 and 2 are instantaneous • Alarm 3 time-delayed or based on average rate • Local or remote acknowledgement Simple operation • 4-20 mA input so that any type of standard detector can be connected • Common serial output in Modbus (J-BUS) format • Analog outputs-one per channel • Management of faults and alarms by micro-controller s 60 High reliability • Fault monitoring • Alarm activation • Internal testing of LED's and display • Transmission of measurements, alarms, failures and relay status via RS232 or 485 • Programmable relays-ND or NC for fail safe operation • Maintenance bypass mode indicated by an LED Safe and secure unit • 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 MX 48 SPECIFICATIONS Loop Impedance: Flammable, 3 wires - 32 Ω Type: Wall mounted controller Function: Microcontroller-based multichannel monitor 4-20 mA : 2 or 3 wires - 56 Ω Capacity: Up to 8 channels Display: Fluorescent, 2 lines of 16 characters Average line length (in meters at 20°C for a 1,5 mm2 conductor) Flammable : 1,000 m/ 4-20 mA 2,000 m Fixed or scrolling ALARMS: Fault alarm: Yellow LED on each channel Signal output: Action on common relay Gas alarm: 3 independent thresholds per channel (Red LED’s) Serial RS 485 or 232 in Modbus (J-BUS) format, opto-insulation an option Power supply: 3rd threshold time-delayed or mean value Audio Alarm: 80 db at 30 cm Relay output: 2 gas alarm relays per channel Power consumption : 200 VA or 150 W Miscellaneous: Positive safety on failure Programmable NO or -NC 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 109 to 122 V AC or 207 to 277 V AC 21 to 31 V DC Manual or automatic reset 2 relay outputs per channel common relay on alarm 3 Analog 4-20 mA per channel, load resistance : 600 Ω max. Protection: IP 65 Weight: 11 Kg Dimensions: H 340 x W 500 x D 89 mm MEASUREMENT INPUT : Type of Detectors: Flammable Bridge Type 80,5 500 Flammable transmitter, toxic or oxygen detector, (type 4-20 mA) Link: 2 or 3 wires 340 340 89
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