Enhanced Photo-Ionization Sensors from Detcon

Detcon has enhanced its Photo-ionization gas detection sensor model PI-700 for better controlling of humidity change and surface pollution, increasing its safety and life-span.

This intelligent sensor is capable of identifying and sensing various toxic gases and volatile organic compounds (VOC's) present in the air.

Photo-ionization detectors (PID's) are the widely accepted sensing technology for tracking VOCs, though intense humidity leads to the change in zero baseline. The large complicated VOC particles can accumulate on filter of the sensor lamp resulting in surface pollution and span change. To overcome this issue, the company has devised a second filter for limiting the humidity fluctuations, and for eliminating large complex aerial VOC substances from accumulating on the PID Sensor. The appropriate usage of this secondary filter will enhance the duration between sensor cleanings and replacement.

The sensor package features a completely shielded Intelligent Transmitter Module, a replaceable tiny PID inside an electro-coated 316 stainless steel vault, and a sensor splash-support with in-built calibration-port. The Model PI-700 sensors are ATEX and CSA-US approved for integration and deployment in Division 1/Zone 1 industrial areas.