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301 CO2 ÃøÁ¤±â
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Model 301

type-2 sensor

The Model 3 01 combines state of the art microprocessor technology with the solid reliability of Digital Control Systems' industrial products to make this full-featured air quality monitoring subsystem less complex and more robust than previous generations of instrumentation. It is so reliable we back it up with an unprecedented two year warranty: twice the industry standard.

Advanced design provides a highly stable, drift-free output requiring less-frequent calibration. Voltage and current outputs make the Model 301 easy to interface with most advanced HVAC facility management systems. The optional contact closure output can directly control the system's fresh air damper to maintain C02 levels within preset limits.

The Model 301with Type-2 sensor is designed for demanding industrial and commercial applications that require reliable performance.  With its broad range of input voltages, low power consumption and sturdy metal enclosures for either wall or duct mounting, this flexible monitor is easily incorporated into a broad range of applications.

The simple one-point calibration procedure makes the Model 301 easy to maintain in the field. An optional digital readout showing C02 concentration in parts per million is also available.

 

Manuals

Model 301

Specifications

Operating principle

Non-dispersive infrared (NDIR)

Gas sampling method

Diffusion or sample draw

Measurement range

0-2000 ppm C02

Maximum drift per year

¡¾ 75 ppm

Accuracy

¡¾ 5% of reading or ¡¾ 75 ppm, (the greater)

Repeatability

¡¾ 20 ppm

Minimum calibration interval

One year

Operating temperature range

10 to 450 C

Power requirements

10-30 VDC or 20-30 VRMS AC

Power consumption

Less than 1.5 W

Calibration adjustments

Span only (offset electronically nulled)

Dimensions

6" x 5" x 2.5"

Voltage output (linear)

0 - 1 VDC standard

Current output (linear)

4 - 20 ma

Weight

Less than 2 lbs.

Enclosure material

Metal

Optional relay

8A at 220 VAC/normally open or normally closed

Optional digital display

4 digit,.56" LED

Operating life expectancy

10 years typical

Warranty

Two year, parts and labor: repair or exchange

 

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