Digital Differential Pressure Gauges

The series A1 digital differential pressure gage is a patent pending microprocessor based digital pressure gauge for positive, negative, and differential measurement designed to be a direct replacement for mechanical gauges. The Series A1 differential pressure gauges utilize an extremely stable piezoresistive sensing technology to give a standard full scale accuracy of 1%. For applications requiring better accuracy, the A1 is also available with 0.5% accuracy. The A1 pressure gauge also has an optional 4-20 mA output for applications requiring an output signal. The A1 features a bright ½" LED display, which gives the gauge improved readability and precision. The A1 digital differential pressure gauges also feature 5 user selectable engineering units including in. w.c., mm w.c., cm w.c., kPa, and Pa. The Series A1 offers an improved look, and performance compare to mechanical gauges for a similar price
Maximum Pressure:
4" w.c. and less = 2 PSI; 5" w.c. and above = 10 PSI
Media compatibility:
Air and compatible non combustible, non corrosive gasses
Accuracy*:
Axxx0-xx - 1.00%; Axxx1-xx - 0.50%; Axxx2-xx – 0.25%
Temperature Ranges: Compensated and Operating:
-10° to 140°F (-23° to 60°C)
Thermal Effect*:
/- 0.012% FS/°F
Output Signal:
4-20 mA (option)
Loop Resistance:
750 Ω Max (for internally sourced power); 1800 Ω Max
(for externally sourced power of 36 VDC)
Power Supply:
Universal 24-240 VAC or VDC
Housing Material:
Glass Filled Nylon
Enclosure Rating:
Designed to meet NEMA 4X face; with optional
cover the entire product is weatherproof