Posted in | Gas Sensors

Detection of Combustible and Toxic Gases: OLCT 200

The OLCT 200 Gas Detection Transmitter available from Teledyne Gas and Flame Detection includes the following features:

  • Non-intrusive calibration
  • Detection of oxygen as well as toxic and combustible gases
  • Hot swappable sensors (IS Versions)
  • Smart sensors
  • HART® Communication
  • 2-wire, 3-wire, ModBus
  • Programmable relays
  • Comes in a wireless version
  • Comes in stainless steel


Teledyne understands the cost of false alarms and equipment downtime and strives to make sure all its products are engineered with maximum reliability.

  • Security mode enables lockout of critical parameters
  • SIL-2—Hardware assessed to be SIL-2 capable
  • Programmable warm-up and cal delays to prevent false alarms
  •  “Fault Supervision” circuitry


Thanks to its advanced features and options, the OLCT 200 can be configured to fulfill almost any application.

  • Intrinsically safe
  • Explosion-proof
  • Stainless steel enclosure (optional)
  • Programmable relays (optional)
  • RS-485 ModBus (optional)
  • Wireless communication (optional)
  • HART® (optional)
  • 2-wire, 3-wire installations
  • Remote sensing (optional)
  • Cold climate heater (optional)
  • Large sensor offering—Catalytic, electrochemical, photo ionization, and infrared detection sensors
  • Dual gas sensing (optional)


The OLCT 200 has been engineered to provide ease of use and convenient features for users.

  • Large graphical display
  • Backlit LCD (excluding 2-wire)
  • Split screen display (dual sensor option)
  • Smart sensors
  • 30 minutes trending
  • LEDs for visual alarm
  • Non-intrusive calibration


In gas detection, wireless communication has turned out to be more and more popular. At times, it is the only means to ensure safety in remote locations or existing infrastructure. The OLCT 200 wireless option provides several advantages to fulfill the application requirements of users.

  • Adjustable Tx power of 10 mW to 1 W
  • 900 MHz or 2.4 GHz FHSS
  • High receiver sensitivity
  • CSA Div 1 and Div 2 Antennas
  • Battery and solar-powered options
  • 256-bit encryption
  • Indoor range up to 3000 feet (or 900 m)
  • Outdoor range up to 10 miles (or 16 km)

Teledyne Gas and Flame Detection also provides a wide range of wireless solutions that are compatible with the OLCT 200, such as solar-powered field monitors and wireless controllers, as well as wireless repeaters and accessories.

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