Fulfils European Norm ISO 13964:1998, has certification from US/EPA and is aligned with Norm EN 14625:2005. "Standard method for the measurement of the concentration of Ozone by Ultraviolet Photometry"

UV Lamp extended life.
Automatic Temperature and Pressure Correction
Concentrations in ppb, ìg/m3, ppm.
Autorange or operator adjustable.
Modular Electronics common with SIR Models:
    -S-5001 SO2.

    -S-5006 CO.
    -S-5012 NOx.

    -S-5000 Multi-Gas Calibrator.
Automatic zero correction.
External Sensors can be logged, data can be: stored and presented in graphical and tabulated formats.
Electronic Diagnostic Transducers.
Internal Datalogger and Memory.
Graphical Screen with simultaneous presentation of Concentrations and Diagnostics.
Bi-directional Communication for External Control, “RS232/RS485”.
Calibration: manual, automatic and remote.
Dedicated Menus and Graphical Screen allowing total external control:
    •Configuration

    •Diagnostics
    •Calibrations

    •Data History
    •Graphics

    •Alarm History
    •Zero/Span

    •Test of elements
Powerfull Calibration and Maintenance Menus (protected by password).
Calibration not only for the pollutans but also for internal electronics of functional parameters.
Multi-tasking software allows viewing test variables while operating.
Adaptive filtering selectable.
Continuous self checking with warning alarms and table of alarms history.
Signals Generation for checking Data Acquisition Channels.
Options:

    • PCMCIA Board.
    • Internal O3 generator.

SIR Model S-5014 ozone analyser is a self-contained instrument which measures the concentration of ozone in a sample of ambient (background) gas, such as air, oxygen, nitrogen, etc.

This instrument is a monochromatic, U.V. absorption spectrophotometer specific to ozone. The analyser measures ozone concentration directly by the attenuation of U.V. radiation by ozone molecules in the optics cell. The ozone concentration is obtained by measuring the relative intensity of transmitted U.V. radiation for a “measurement pair” consisting of a consecutive zero and sample gas cycle.

A fixed quantity of “zero gas” and the same quantity of “sample gas” are alternately drawn into the instrument’s optics cell by utilizing a pump and sample handling system. The zero (reference) gas is ambient gas, with the ozone “scrubbed” (removed) by a catalytic converter; the sample gas is unaltered ambient gas with the ozone still present.

Alternate, consecutive measurements of the absorption of U.V. radiation during the reference cycle and the measurement cycle are made by the photometer. Continuous auto-zeroing and removal of interferences are accomplished by this paired measurement technique, which may be thought of as “gas chopping”. This technique achieves the same zero stability, with the added advantage of inherently eliminating all the interferences and a non-existing zero drift.

Span stability is achieved by ensuring that the reference and measurement cycle times for each measurement pair are identical. A special “clock/counter” control circuit (much like a stopwatch) is utilized. This circuit is first set by the reference cycle time interval, and then controls the subsequent measurement cycle time interval. It is then reset for the measurement pair.

Appropriate signal processing of each individual measurement pair by the electronic system yields the instantaneous ozone concentration (within the selected update cycle time of the instrument) in accordance with the Beer-Lambert law. It also makes the control and synchronization of sequences, automatically makes the corrections for temperature and pressure. The internal parameters of the instrument are continuously watched by the electronic system, which also sets up the communications protocol for data transmission.