Series A1 - Digital Differential Pressure Gauge
The Series A1 Digital Differential Pressure Gauge is a patented microprocessor based digital pressure gage for positive, negative, and differential measurement designed to be a direct replacement for mechanical gauges. The Series A1 digital 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% or 0.25% 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 compared to mechanical gauges.
- Maximum Pressure:
- Ranges -00 to -07 = 2 PSI (13.8kPa)
- Ranges -08 to -12 = 10 PSI (68.9pKa)
- Media compatibility:
- Air and compatible non-combustible, non-corrosive gases
- Accuracy*:
- 1.0%, 0.5%, or 0.25%
- Temperature Ranges:
- Compensated and Operating: -10° to 140°F (-23° to 60°C)
- Thermal Effect*:
- +/- 0.02% 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 (IP 65) face; with optional
cover the entire product is weatherproof - Electrical Connections:
- screw terminals
- Response Time:
- <100 ms
- Display:
- 4 Digit, red LED, ½" (12.7mm) digits
- Process Connection:
- Push on connection for 3/16" (5mm) tubing
- Agency Approvals:
- CE
* Custom calibration including improved accuracy and thermal effect are available.
| Example: | A | 1 | 0 | 1 | 2 | - | 03 | Description |
|---|---|---|---|---|---|---|---|---|
| Model | A | 4 ½" Panel Mount Housing | ||||||
| Display | 1 | LED display | ||||||
| Function | 0 | Indication | ||||||
| Transmitter | 0 | None | ||||||
| 1 | 4-20 mA | |||||||
| Accuracy | 0 | 1% | ||||||
| 1 | 0.50% | |||||||
| 2 | 0.25% | |||||||
| Pressure Range* | *All ranges are bi-directional | - | 00 | 0 – 0.25" (60 Pa) | ||||
| - | 01 | 0 – 0.5" (125 Pa) | ||||||
| - | 02 | 0 – 1" (250 Pa) | ||||||
| - | 03 | 0 – 2" (500 Pa) | ||||||
| - | 04 | 0 – 3" (750 Pa) | ||||||
| - | 05 | 0 – 4" (1 kPa) | ||||||
| - | 06 | 0 – 5" (1.25 kPa) | ||||||
| - | 07 | 0 – 8" (2.0 kPa) | ||||||
| - | 08 | 0 – 10" (2.5 kPa) | ||||||
| - | 09 | 0 – 15" (3.75 kPa) | ||||||
| - | 10 | 0 – 20" (5.0 kPa) | ||||||
| - | 11 | 0 – 30" (7.5 kPa) | ||||||
- | 12 | 0 - 40" (10 kPa) | ||||||