Interscan Model 4240/4480 SO2/O3 PPB Gas Analyzer

The Interscan 4240 Series Digital Portable Analyzer is a direct-reading, battery-operated unit with integral sample pump. The detection element is an electro-chemical voltametric sensor, designed for long-term, reliable performance. In operation, sample gas is drawn through the sensor. Gas concentration is displayed directly in parts per billion. Since the method analysis is not absolute, prior calibration against a known standard is required. Exhaustive tests have shown the method to be linear, so that calibration at a single concentration is sufficient, independent of the range. Essential components of the unit are the sensor, batteries and electronic circuitry including: zero compensation, sensor biasing, amplification, alarm elements, sample pump and display. The Interscan 4480 is a portable ozone analyzer with digital display.

Specifications:
4240 Operating Range:
Resolution:	1 ppb
Sulfur Dioxide:	0-1,999 ppb
Power Source:	Rechargeable Ni-Cad
Operating Time:	10 hours continuous
4480 Operating Range:
Resolution:	1 ppb
Ozone:	0-1,999 ppb
Accuracy:	±2.0% of reading
	±1 least significant digit

Rental Includes: Monitor, Manual, and Carrying Case.

Datalogging Software available upon request.