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MX52 Gas Controller

Description

MX 52 controller accepts inputs from flammable (4-20 mA transmitter or catalytic bridge types) and toxic gas detectors. The MX 52 modular design allows you to build your own gas detection system to meet your requirements.

Features

  • Programmable keyboard
  • Modular control panel (3U, 19″)
  • Master digital display
  • Up to 16 channels
  • 33 gas alarm thresholds, one with time delay, 1 common fault alarm

The innovative features of the MX 52 are integrated into a 3U 19” rack frame for use in a variety of applications. The MX 52 can be programmed either through the keyboard or by an external PC.

Each of the 16 channels performs the following:

  • continuous monitoring of connected detector(s)
  • cyclic display of the detected gas, its status, content and unit (ppm, LEL or %)
  • alarms are initiated if concentration exceeds preset thresholds
  • relays activated to enable external warning devices (valves, audio/visual alarms)
  • fault alarms
  • 4-20 mA outputs
  • serial RS485 Modbus interface

Specifications

Type: Wall mounted controller
Function: Microcontroller-based multichannel monitor
Capacity: 8 cards, 2 independent channels each (max 16 channels)
Display: Fluorescent 2 lines 16 fixed or scrolling characters

Alarms

Fault alarms: System functioning normally
Faulty interface link
Faulty detector
Faulty microcontroller
Specific channel identification with yellow LED
Common fault relay
Gas alarms: 3 independent thresholds per channel
Third threshold delayed or averaged
Automatic or manual reset
Programmable increasing or decreasing alarm
Visual red LED
Relay output per channel (alarm 1 and 2), common relay on alarm 3
Audible alarm: 80 dB at 30cm
Outputs:

 

 2 independent gas alarm relays per channel (2 A – 250
VAC Rating for resistive load)
1 common gas alarm 3 relay or common audible alarm transfer (programmable)
1 common fault relay
Programmable positive or negative safety on alarm relays
Fail safe on fault
Programmable NC or NO output on alarm 1, alarm 2 and fault alarm, SPDT on alarm 3

Inputs

Type of detectors: Flammable detector bridge type
Oxygen, toxic or flammable detector 4-20 mA output,
2 or 3 wire
Other detectors standard current output

 

Links: 2 or 3 wires re-inforced cable
Loop impedance:

 

 Flammable 3 wire : 32 Ω
4-20 mA: 2 or 3 wire – 56 Ω
Average line length
(in meters at 20°C for a 1,5 mm2 conductor) :
– Flammable : Bridge type – 1000 m 4-20 mA – 2000 m
– Power supply control per LED on each channel
(power ON/OFF green LED indicator)
Signal output: Analog 4-20 mA per channel
Serial RS 485 or 232 MODBUS protocol
Power supply:

 

 103 to 122 V AC or 207 to 244 VA
21 to 31 V DC
Power consumption : 300 VA or 240 W

Miscellaneous:

Local or remote acknowledgement
Operating temperature: -10 +45°C
Relative humidity: 5 to 95 % non condensed
In compliance with European standards 50054, 50081 and 50082Dimensions:

Rack 3U, 19” frame
Dimensions : 482 w x 132 h x 266 d in mmWeight:15 Kgs