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

Applications :

Filter Status

Duct Static Pressure

Clean Room Pressure

Building Pressure

Fan Blower Pressure

Paint Booths

Dust Collectors

Glove Box Pressure

Bubbler Systems

Laminar Flow Hoods

Cabinet Purging