Handheld Electronic Combustible Gas Detector
The GS-40 is a completely self-contained combustible gas leak detector designed to pinpoint gas leaks in the most demanding applications. An efficient and sensitive gas sensor is combined with solid state circuitry which provides an audible alarm that increases in pitch as the concentration of the gas increases. A visual indication is also provided as well as provisions for an earphone for use in noisy environments.
The sensor has been extensively tested and averages a useful life of five years in normal operation. The sensor is capable of responding to a wide range of combustible gases and other toxic contaminants. Response levels as low as 25 ppm are possible.
A modern design, combined with an efficient heated Tin Oxide sensor, allows long operating life from a battery pack of only 4 AA cells. This allows for a very portable, lightweight instrument featuring an 18 inch flexible metal probe capable of reaching the most difficult locations.
The operation of the GS-40 is fully automatic; no manual adjustment is needed to obtain the full benefits of its unique sensitivity and stability. Simply turn the ON-OFF switch to either its HI or LO sensitivity positions, wait a short period of time while the instrument automatically warms up the sensor, and balances itself to the surrounding atmosphere, and the GS-40 will start its audible alarm at a slow ticking rate to signal that it is ready to search for leaks. During the warm up time, a bright red LED signals the state of the battery pack: fully illuminated if the batteries are OK or dimly lit if the batteries need changing.
The sensor in the GS-40 has a normal life of over 5 years. However, if accidental damage to the sensor occurs by getting wet or clogged, it can be easily replaced as indicated in the maintenance section.
The GS-40 is not intrinsically safe in Class 1, Division 1 atmospheres and should be turned on and off in areas where no combustible gases are present.