O3 Photometer Dark Calibration - Teledyne T700 Operation Manual

Dynamic dilution calibrator

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Calibration and Verification

7.3.5. O3 PHOTOMETER DARK CALIBRATION

The Dark Calibration Test turns off the Photometer UV Lamp and records any offset

signal level of the UV Detector-Preamp-Voltage to Frequency Converter circuitry. This

allows the instrument to compensate for any voltage levels inherent in the Photometer

detection circuit that might affect the output of the detector circuitry and therefore the

calculation of O

concentration.

To activate the Dark Calibration feature:

Teledyne API – Model T700 Dynamic Dilution Calibrator

06873B DCN6388