The MX 52 control unit allows various detectors to be connected and monitored. Any gas detector from Teledyne Gas and Flame Detection or any other 4-20 mA device can be monitored and controlled.

The modular design and flexibility enable this MX 52 gas detection equipment to be adapted to your exact requirements.​


Function Controller Safety Instrumented System
Capacity 8 cards, 2 independent channels each (max 16 channels)
Display Fluorescent 2 lines 16 fixed or scrolling characters


Fault Alarms:
Specific channel identification with yellow LED
Common fault relay
Gas Alarms:
3 independent thresholds per channel
Third threshold on delay or average
Automatic or manual reset
Programmable increasing or decreasing alarm
Visual red LED
Audible Alarms: Follows the fault sequence and panel acknowledgement gas alarm
2 independent gas alarm relays per channel (2 A - 250 VAC rating for resistive load)
1 common alarm 3 relay
1 common fault relay
Energized or de-energized alarm relays
Energized fault relay
Programmable NC or NO on alarm 1, alarm 2 and fault alarm, SPDT on alarm 3


Type of detectors:
Flammable catalytic bridge type - 3 wires
Oxygen, toxic or flammable analog transmitters, 2 or 3 wires
Other 4-20 mA analog output transmitters​

Wiring: 2 or 3 wires shielded cable
Loop impedance:
Flammable 3 wires: 32 Ω
4-20mA; 2 or 3 wires: 56 Ω
Average line length (in meters at 20°C, core size 1,5 mm2): Flammable: Bridge type - 1000 m 4-20 mA - 2000 m
Signal Output:
4-20 mA per channel
Serial RS 485 or 232 MODBUS protocol

Power supply:

103 to 122 Vac or 207 to 244 Vac
21 to 31 VDC
Power consumption: 300 VA or 240 W


Local or remote acknowledgement
Operating temperature: -10 to +45°C
Relative humidity: 5 to 95% non condensing


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


  • Compliant with European standards EN 50054, EN 50057, EN 50104 and EN 50271 (harmonized standards 61779-1: 2000 and 61779-4: 2000)
  • ATEX II(2)G
  • SIL 2 capability according to EN 61511 (INERIS n° 68210-2005)
  • EMC Directive EN 50081-1-2 and EN 50082-1-2
  • Low voltage directive EN 61010-1​​

  • Certification Description
    ATEXATEX ist die Abkürzung für ATmosphères EXplosives und umfasst Richtlinien auf dem Gebiet des Explosionsschutzes (2014/34/EU und 1999/92/EG).
  • CEDas CE-Zeichen bestätigt die verpflichtende Produktprüfung durch den Hersteller bzgl. der EU weiten Anforderungen an Sicherheit, Gesundheitsschutz und Umweltschutz.
  • SILSafety Integrity Level ist die Quantifizierung der Risikoreduzierung von Anlagen und Maschinen.