The Chatterbox-e unit provides the necessary safety isolation
between equipment generating pulses in the hazardous area
and non-intrinsically safe equipment located in the safe area.
Opto-isolators provide four isolated volt-free contacts from
low frequency pulses generated by Gas Meters or Volume
Correctors installed in the hazardous area. Chatterbox-e
operates from a self contained power supply lasting in excess
of 10 years and is therefore suitable for installation in remote
and difficult environments without the need for an external
power supply. During 10 years of operation the Chatterbox-e
will save hours of labor on site. The unit comprises of four
independent circuits that transform high impedance pulses,
or volt-free contact closures, into isolated volt-free contact
closures. One input can be connected to up to 4 isolated
output circuits by using internal switches