Series A3
Digital Differential Pressure Controls
Data Sheet PDF Installation Manual PDF
The series A3 is a patent pending
microprocessor based controller for positive, negative, and differential
pressure as well as velocity and flow. The Series A3 includes (2) 8A SPDT
relays and an associated software package that allows full configuration of
variables such as setpoints, dead band, engineering units, flow coefficients,
and more. The programming is done from a user friendly menu on the LCD
display or uploaded using an Opti
Link™ programming key. The LCD also displays
the exact setpoints or other user defined variables during normal operation.
Furthermore, the menu structure can be customized by moving variables to
different menu levels to accommodate many applications. Compared to other
mechanical products, the Series A3 has a significantly reduced depth, an
improved look, and better performance at a lower 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 (-12° 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 - Relays:
- (2) SPDT 8 Amps @ 250 VAC, 5A @30 VDC
- Electrical Connections:
- screw terminals
- Response Time:
- <100 ms
- Display:
- 4 Digit, red LED, ½" digits; LCD programming display
- 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