![]() |
AirSense Model 310Carbon Dioxide Sensor
|
|
This state-of-the-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, you can watch CO2 levels rise as people enter a room. According to the National Institutes of Occupational Safety and Health, increased levels of 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 completely 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 AirSense Model 310 perfect for battery-operated or other power-sensitive applications. The AirSense Model 310s 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 operations are easily performed even on units with no display. The AirSense Model 310s 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 set point and is easily adjusted in the field. For plenum sampling requirements, the popular duct option is easy to install. The high-performance AirSense Model 310 uses an advance Non-Dispersive Infrared (NDIR) sensoring systems to assure quick and reliable CO2 response. |
|
| Manuals | |
|
Specifications |
|
|
|
Operating Principle |
Non-dispersive infrared (NDIR) |
|
|
Gas sampling method |
Diffusion or available duct kit |
|
|
Measurement Range |
0 - 2000 ppm CO2 |
|
|
Meaurement accuracy |
?/span>
5% of reading or ?/span> 75 ppm,
whichever is greater |
|
|
Repeatability |
?/span>
20 ppm |
|
|
Recommended calibration interval |
5 Years |
|
|
Warm up time |
Less than 1 minute |
|
|
Operating temperature range |
0 to 50 ?/span>
Celsius |
|
|
Operating humidity range |
5 - 90% RH, (non condensing) |
|
|
Storage temperature |
-30 to + 60 ?/span>
C |
|
|
Power requirements |
18 - 28 VRMS
AC, 18 - 30 VDC |
|
|
Power consumption |
Less than 1 watt |
|
|
Calibration adjustments |
Span only (offset electronically nulled) |
|
|
Calibration verification procedure time |
10 minutes typical |
|
|
Case dimensions |
5.2" x 3.2" x 1.4" |
|
|
Voltage output (linear) |
0 - 10 VDC full scale standard. Range field adjustable from 1-10 VDC |
|
|
Current output (linear) |
4 - 20 mA (RLOOP:
400 W maximum) |
|
|
Warm up time |
Less than 1 minute |
|
|
Weight |
12 Oz. (.35 Kg) |
|
|
Optional Digital Display |
4 digit, .35" LCD |
|
|
Optional |
setpoint range |
0 to 2000 ppm |
|
High Limit |
contact polarity |
jumper selectable |
|
Contact |
contact rating |
2A @ 24 VAC |
|
Operating life expectancy |
10 years typical |
|
|
Warranty |
One year, parts and labor through repair or
exchange |
|