Polytector

®

II G750 Gas Display, Data logger, Evaluation and Record

Alarm signals

The Polytector II provides 4 clear and different warning systems:1.A penetrating audible signalalarms with a sound level of 90 dB.2.In very noisy environments anearphone alarm provides addi-tional safety.3.A flashing alarm light with 6 LEDsgives a clear visual gas alarm. 4.A built-in vibrating alarm (option)makes you feel the danger.

OX Detection – Sensors withextra-long lifetime The advantages of GfG’s elec-trochemical oxygen sensor:

Even a minimum reduction of theoxygen concentration in the brea- thing air (usually 20.9 Vol %) may mean vital danger. The Polytector IImeasures oxygen permanently andprotects the user from the danger of suffocation due to oxygen defi- ciency. With its high quality electrochemicalsensor the Polytector monitors theoxygen concentration in a range from 0 to 25 Vol. %. Latest techno- logy in design and circuitry prevents the quick consumption of the oxy-gen cell, which has been inevitableup to now. •Pressure and temperature com-pensation.•Quick response time. •Reliable warning for oxygendeficiency and surplus.

Built-in sampling pump

The Polytector II can be used with-out pump for permanent monito- ring of gas hazards. With an electri-cal pump built in, the Polytectortakes gas samples from manholes, sewers, confined spaces or tanks and checks them for gas hazards. A heavy-duty pump is available optio-nally, if a higher sampling perfor-mance is required, e.g. for landfills. The Polytector monitors the pump operation and gives a warning, if the flow is stopped by e.g. water or par-ticles.

3 alarms for every gas...plus a variety of options

For every gas the Polytector provi-des 3 alarm thresholds. The detec- tor monitors the gas concentrations continuously and gives a warning assoon as any of the gases exceed anypre-set level. Different alarm fre- quencies indicate, which thresholdhas activated the alarm, and the dis-play shows, which alarm was causedby which gas. Two additional alarms are optionally available for Short Term Exposure Level (STEL) and Time Weighted Average (TWA), i.e. aver-age values for 30 minutes resp. 8hours. This gives the Polytector a dosimeter function for personal protection and allows the user tostay longer in confined spaces with-out risking any health hazard. After entering a safety code all alarm set- points can be altered to meet new requirements.