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Model 725 Ozone Analyzer with Internal Zero/Span

 

725 module 

In addition to the Equivalent Method UV Photometer, the Model 725 includes an internal zero air scrubber, ozone generator and a valve to switch the photometer inlet from sample air to the ozone generator output.

The 725 is designed for ambient air monitoring applications when an internal zero/span or internal multipoint cal check is required.

The Model 725 is an ideal replacement for the Dasibi 1008-RS.

 

Rear Panel

 

Ozone Photometer Specifications

725 rear

Analog outputs:

4 isolated 16-bit outputs with 100 mV to 10V independently selectable ranges

Full Scale Range:

0 500 PPB, 0 1000 PPB, 0 - 10 PPM, independently programmable for each output

Sample Flow Rate:

.5 to 2.0 LPM, adjustable

Photometer Cycle Time:

3 to 20 seconds, adjustable

Zero Noise:

< 0.0003 PPM

Span Noise:

< 0.5% of reading (above 100 PPB)

Precision:

< 1 PPB

Linearity:

< 1% of full scale

Zero Drift:

< 1 PPB per month

Span Drift:

< 1% of reading per week

Lag / Rise / Fall Times:

10 / 20 / 20 seconds, respectively (with fast cycle setting)

 

Ozone Generator Specifications:

Ozone Output Range:

0 to 1000 PPB at 5 SLPM zero air flow, software selectable

Minimum Non-zero Ozone:

1 PPB

Ozone Output Resolution:

0.5 PPB

Ozone Output Linearity:

+/- 1% of range

Zero Air Flow Rate:

Same as photometer

Zero Air Pollutant Concentrations:

NO, NO2, H2S, SO2, O3, Non-methane hydrocarbons < 1PPB

 

Module Specifications:

Power

Standard:

+5, +/-15V & +24V at less than 80 Watts

 

12V Option:

9-16V at less than 7 amps

Dimensions:

7 wide x 4.9 high x 19.5 long (178 x 124.5 x 495 mm)

Weight:

9 lb (4 kg)

 

 

 

Flow Diagram

 

725 flow

 

 

Riverview, FL ● Phone: (813) 677-4876 ● Fax: (813) 677-4962 ● e-mail: sales@tanabyte.com

 

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