Dräger VarioGard® 3300 IR Transmitter

Digital Transmitter

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“Technology for Life” is the guiding philosophy. Whether in the operating room, in intensive care or emergency response services, Dräger / Draeger products protect, support and save lives.

Dräger offers its customers anaesthesia workstations, medical ventilation, patient monitoring as well as neonatal care for premature babies and newborns. With ceiling supply units, IT solutions for the OR, and gas management systems the company is at the customer’s side throughout the entire hospital.

Emergency response services, law and regulatory enforcement and the industry trust in Dräger’s integrated hazard management, in particular for personal protection and plant safety. This includes: respiratory protection equipment, stationary and portable gas detection systems, professional diving equipment and systems, as well as alcohol and drug impairment detection. In collaboration with its customers Dräger develops customized solutions, such as entire fire training systems, training concepts and workshops.

Dräger has about 13,500 employees worldwide and is currently present in more than 190 countries. The company has sales and service subsidiaries in over 50 countries. Its development and production facilities are based in Germany, Great Britain, Sweden, South Africa, the USA, Brazil, the Czech Republic and China.

The Dräger VarioGard® 3300 IR is a digital transmitter with an integrated infrared optical DrägerSensor®. It detects the flammable gases methane and LPG in the ambient air. This affordable system component makes it easier for you to configure a gas warning system.


Digital function

  • The Dräger VarioGard 3300 IR is connected with the controller via a digital VarioGard bus. This is how it is supplied with electricity and how it transmits its measuring results. You can easily control the entire VarioGard system via the VarioGard bus.

High reliability

  • The VarioGard 3300 IR is equipped with an infrared optical DrägerSensor. This sensor measures the concentration of flammable gases in the ambient air. The measured values are transmitted digitally to the controller and displayed there.
  • An alarm is triggered if the gas concentration exceeds one or more of the configured limit values.

Easy operation

  • Operation is extremely easy. You can make all configurations comfortably from the controller using VarioGard software.
  • You can configure and monitor four current limit values and four averages over time for each transmitter. The alarms are optically and acoustically displayed on the transmitter and transmitted to the controller. A three-colour LED indicates the operating status of the transmitter. The calibration is controlled using a magnetic wand via contact points.

Individually configurable

  • The VarioGard 3300 IR is adaptable to your needs. This means that you have different gas libraries available depending upon the desired use. It detects LPG for garages and CH4 for methane monitoring that does not require explosion protection. In addition, you can place the cable inlets on all four sides of the transmitter. The transmitter can be mounted vertically as well as horizontally.

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