CATALOG INDEX
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CATALOG INDEX
BY DEPARTMENT

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- [ AirSense Model 310
Infrared CO₂ Sensor ]
- [ Carbon Dioxide ]
- [ CO2 Ventostat Wall
Mount Monitor ]

This state-of-art instrument measures carbon dioxide (CO₂) concentrations in the parts per million (ppm) range and is ideal for applications ranging from conference rooms to home gyms.

Fresh air contains 350-400 ppm CO₂. Human respiration and combustion by-products from furnaces, fireplaces and household appliances can easily raise indoor levels above 2000 ppm. With your AirSense Model 310 CO₂ may contribute to "Sick Building Syndrome" and symptoms such as hyperventilation, headache, dizziness, shortness of breath, and drowsiness. The AirSense Model 310 CO₂ monitor provides a continuous, accurate reading of indoor CO₂ levels, making it easy to maintain an optimum level of fresh air.

The AirSense Model 310 is easy to install and support. Measurement output is via a 4-20 mA current loop or a 0 to 10 volt interface. A completly isolated power supply eliminates any ground loop or electrical interaction problems when multiple units are connected to the same controller. Low power consumption makes the AirSence Model 310 perfect for battery-operated or other power-sensitive applications.

The AirSense Model 310's single gas verification makes field calibration a snap, and its superior design means significantly longer calibration intervals. Unlike other models, its simple user interface has no complicated menus: all maintenance and calibration operation menus are easily performed even on units with no display.

The AirSense Model 310's versatility is enhanced by options to satisfy most applications. The clear, bright 0.4" high LCD display option is readable from any angle for installations where local annunciation of the CO₂ concentration is desired. For direct control applications the relay option can be configured to open or close above the setpoint and is easily adjusted in the field. For plenum sampling requirements, the popular duct option is easy to install.

Parameter	Value
Operating principle	Non-dispersive infrared (NDIR)
Gas sampling method	Diffusion or available duct kit
Measurement range	0-2000 ppm
Repeatability	±20 ppm
Measurement accuracy	±5% of reading or 75 ppm, whichever is greater
Recommended calibration interval	5 years
Warm up time	Less than 1 minute
Power requirements	18 - 30 VDC or 18 - 28 VRMS AC
Power consumption	Less than 1 watt
Operating temperature range	0 - 50°C
Operating humidity range	5 - 95% RH, non-condensing
Voltage output (linear)	0 - 10 VDC full scale standard. Range filed adjustable from 1 - 10 VDC
Current output (linear)	4-20 mA (RLOOP : 400max.)
Optional LCD display	4 digit, .4" high
Optional relay contact rating	3 Amps @ 24 VAC
Optional relay setpoint range	0 to full scale
Case dimensions	5.25 x 3.25 x 1.4"
Enclosure Material	Satin finish, high impact plastic
Option code	Available option
Relay	R
LCD Display	L
Duct Kit	D
110 VAC Transformer	T