
CO2InfraredFieldbus
VarioGard · Gas transmitter
VarioGard 3320 IR
CO2InfraredFieldbus
The Dräger VarioGard® 3320 IR is a gas transmitter that measures carbon dioxide in the ambient air with an infrared optical sensor. It sends its measurement over a bus connection. It runs on a 16–32 V DC 3-wire supply; its ABS plastic housing is rated IP65 and works from -20 to 50 °C.
- GASES
- CO2
- SENSOR TECHNOLOGIES
- Infrared
- OUTPUTS
- Fieldbus
Description and features
The Dräger VarioGard® 3320 IR is a gas transmitter that measures carbon dioxide in the ambient air with an infrared optical sensor. It sends its measurement over a bus connection. It runs on a 16–32 V DC 3-wire supply; its ABS plastic housing is rated IP65 and works from -20 to 50 °C.
01Carbon dioxide (CO2) measurement
02Infrared (IR) measuring principle
03Bus output
04ABS plastic housing, IP65 protection
05Operating temperature -20 °C to 50 °C
Technical data
- BRAND
- Dräger
- MODEL
- VarioGard 3320 IR
- GASES
- CO2
- SENSOR TECHNOLOGIES
- Infrared
- OUTPUTS
- Fieldbus
- DISPLAY
- no
- SIL LEVEL
- None
- IP RATING
- IP65
- OPERATING TEMPERATURE
- -20–50 °C
- POWER SUPPLY
- 16 to 32 VDC, 3-wire
- HOUSING
- Plastic ABS
- OTHER APPROVALS
- CE marking
- DIMENSIONS
- 11x12x6 cm (H × W × D)
- WEIGHT
- 14.11 oz (400 g)
Documents and certificates
Other CE marking




