Along with backlit display, 900DP features integral pulser engineered for fuel management systems as well as matched intrinsically safe barrier that provides connections, controls pulse transfer, and allows meter to operate in explosive atmospheres. Barrier converts external power from AC or DC sources for meter power, and meter uses two alkaline AA batteries for backup. Metering pulses are transferred via magnetic coupling, eliminating dynamic seals and associated wearing/leak issues.
This story is related to the following:Digital Meters