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Copyright ©1998-2004:
AMKO Systems Inc.
All rights reserved.


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5008 PROGRAMMABLE MULTI-GAS CALIBRATOR

Configurations:

Model 5008

This is the "stripped down" configuration used for applications involving dilution of external gas cylinders for pollutants such as CO, SO2, CH4, NO and NO2.

Model 5008 w/DET

Added to the configuration above is a pyrex reaction chamber and an internal ozone generating subsystem controlled by an ozonator-detector feedback system. In addition to dilution of external gas cylinders this unit has the ability to perform ozone and Gas Phase Titration (GPT) calibrations. The detector feedback system controls ozone output by correlating the ozonator lamp’s light intensity against the resulting ozone output as measured by an external ozone standard. An internal regression analysis is performed by the unit’s computer to correct for any non-linearity of the data obtained.

Model 5008 w/D&P

Added to the Model 5008 configuration is a pyrex reaction chamber and internal ozone generating subsystem controlled by an ozonator-photometer feedback system. As with the Model 5008 w/DET, there are the added capabilities of performing ozone and GPT calibrations. The UV photometric feedback system controls ozone output by measuting the actual ozone output. This system only needs to be re-calibrated as often as an ozone primary standard.

Advantages:

Multi-gas calibration via dilution invented by Dasibi
Ozone generator controlled via detector feedback system (Model 5008 w/DET) invented by Dasibi
Ozone generator controlled via UV photometric feedback system (Model 5008 w/D&P) invented by Dasibi
Capable of storing up to 100 programmed gas calibration levels
Capable of storing up to 20 programmed gas calibration sequences containing up to 40 steps each
Able to accomodate up to four external gas cylinders at any one time
Fully displayed menu-driven software system for easy operation
Capable of performing internal 20-point calibrations on its mass flow controllers, ozone generator and UV photometer (if present)
Use of pyrex dilution/reaction chambers for quicker calibration gas creation
Flexibility for increasing the number of gas mass flow controllers
Common electronics with Dasibi Model 7001 Beta Attenuation Monitor and Model 8001 Data Acquisition System

Technical Specifications

Dilution System:

Accuracy of flow measurements:

 ± 0.25%

Repeatability of flow control:

 ± 0.1%

Linearity of flow measurements:

 ± 0.25%

Standard MFC range for dilution air:

 0-10 SLPM

Standard MFC range for cylinder gases:

 0-100 SCCPM
Ozone Generating Subsystem (Models 5008 w/DET and 5008 w/D&P)

O3 generator output: (at 5.0 SLPM total flow; adjustable)

 0.06-1.0 ppm

Stability:

 ± 0.002 ppm @ 0.500 ppm

Standard zero air required:

10.0 SLPM
UV Photometer Subsystem (Model 5008 w/D&P only)

Standard range:

 0 to 1.0 ppm (capable of measuring O3 above 1 ppm)

Incremental sensitivity:

 0.001 ppm

Precision:

 0.001 ppm

Noise:

 ± 0.001 ppm

Linearity:

 Better than ± 1.0%

Zero drift:

 Zero

Span drift:

 Zero

Flow rate:

 1.5 to 3.5 LPM (nominal)

Optional analog output:

 1, 5, 10 Volts (selectable)

Power:

 105-125 VAC, 50-60 Hz
220-240 VAC, 50-60 Hz