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All Categories > Multigas Analyzers > Item # 309A Series  


Item # 309A Series, Portable Analyzer for Carbon Dioxide & Oxygen in Agricultural Applications

The Model 309A Series Portable CO2 and O2 Analyzer is a rugged, fast-responding, and accurate instrument for conveniently monitoring the atmosphere in a fruit storage C/A room. The standard range of the analyzer is 0-10% CO2 and 0-25% O2. Other ranges are available. The Model 309A series utilizes a single cell infrared detector for CO2 and a customer replaceable electrochemical sensor for O2. Neither sensor is affected by water vapor or other gas vapors in the sample gas. The O2 sensor typically lasts 3-4 years.

In operation, a built in sample pump draws in the gas sample through the sample hose, filter/condensate trap, secondary filter and flow meter then on to the CO2 and O2 detectors. The gas readings are then displayed on LCD digital meters which have switchable backlights for use in dark areas.

A rechargeable battery provides enough power for about 8 hours of continuous operation and the analyzer can be used while it is being recharged. A red LED tells when to recharge and a green LED verifies that it is receiving recharging power. The recharger is included.



 Specifications 

Method of Detection
Electrochemical O2 sensor
Infrared detector for CO2

Ranges Available
0-25% O2 (Other ranges available)
0-3000 PPM; 0-5000 PPM; 0-1%; 0-10%; 0-20%; 0-50%; 0-100% CO2

Resolution
0.1% on % versions or 10 PPM on PPM versions

Accuracy & Repeatability
Within ±2% full scale

Drift
Within 1% full scale per 8 hours of continuous operation

Response Time (T-90)
O2 less than 10 seconds; CO2 less than 30-40 seconds to T-90

Ambient Temperature Range
4 to 49 ºC
40 to 120 ºF

Linearity
±1.0% of full scale

Size & Weight
K Style: 14" L x 10 1/2" W x 6" H @ 12 lbs (36 x 27 x 15 cm @ 5.5 kg)
WP Style: 10" L x 7 1/2" H x 6 1/2" D @ 8 lbs (25.5 x 19 x 26.6 cm @ 3.6 kg)

Power
AC/DC Operation, 115 VAC, 60 Hz for recharging

Output Options
0-1 VDC
4-20 mA

Unique Applications
    All Nova analyzers are built using proven technologies and techniques. If this product does not suit your application, please contact Nova. In many cases, we are able to build an analyzer specific to your needs.

Primary Gas to be Measured
Carbon Dioxide (CO2)
Oxygen (O2)

Industry Type
C/A Room Monitoring



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