Precision Digital Corporation |
Established in 1974, Precision Digital Corporation designs, develops, manufactures, sells and distributes digital devices driven by embedded systems that transform, display and control critical process information. Our products can be located virtually anywhere in the plant; from the control room to Class I Div 1 areas (both explosion-proof and intrinsically safe). They will accept virtually any analog signal such as 4-20 mA, thermocouple, RTD, DC voltage and pulse as well as digital serial data, such as Modbus. Products include Digital Panel Meters, PID Process and Temperature Controllers, Annunciators, Multi-Channel Controllers, Loop-powered Indicators, Flow Rate Meters and Totalizers, Batch Controllers and Pump Controllers.
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Application: Crude Oil Tank Level Monitoring |
Four crude oil storage tanks are used to transfer oil from transport trucks to the refinery. Each tank requires a hazardous area approved local display to power and read the level transmitter. The ProtEX-MAX PD8-6000 was a perfect solution, providing a line-powered explosion-proof meter that could power the level transmitter, read the 4-20 mA signal, and include up to 4 relays and a 4-20 mA output. The sunlight readable display was a must-have for this bright, outdoor location. Through-glass buttons allow the operators to acknowledge relays and change programming without the need to remove the cover.
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