Series A1
Digital Differential Pressure Gauges
Data Sheet PDF Installation Manual PDF
The series A1 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 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 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 also features 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
Specifications
- 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%
- 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 16-265 VAC or VDC
- Housing Material:
- Glass Filled Nylon
- Enclosure Rating:
- Designed to meet NEMA 4X face; with optional
cover the entire product is weatherproof - Electrical Connections:
- screw terminals
- Response Time:
- <100 ms
- Display:
- 4 Digit, red LED, ½" digits
- Process Connection:
- Push on connection for 3/16" tubing
- Agency Approvals:
- Pending - UL, C-UL, CE
* Custom calibration including improved accuracy and thermal effect are available.
Dimensional Drawing
Gauge
Gauge with Weather-proof cover
Model Numbers:
- Model Configurator - Steps you through part number selection
- Complete configuration chart
- Accessories