Series A4 - Digital Differential Pressure Control

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Series A4

The Series A4 digital differential pressure controller is a patented microprocessor based pressure controller for positive, negative, and differential pressure as well as velocity and flow. The Series A4 differential pressure controller includes (2) 8A SPDT relays and an associated programming menu 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 OLED display or uploaded using an Opti-Link™ programming key. The OLED 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 A4 digital differential pressure controller has a significantly reduced depth, an improved look, and better performance at a similar price.

Maximum Pressure:
Ranges -00 to -07= 2 PSI (13.8 kPa)
Ranges -08 to -12 = 10 PSI (68.9 kPa)
Media Compatibility: Air and compatible non-combustible, non-corrosive gasses
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
Relays: (2) SPDT 8 Amps @ 250 VAC, 5A @30 VDC
Electrical Connections: screw terminals
Response Time: <100 ms
Display: 4 Digit, red LED, ½" (12.7 mm) digits; OLED programming display
Process Connections: Push on connection for 3/16" (5 mm) tubing
Agency Approvals: CE

* Custom calibration including improved accuracy and thermal effect are available.

Example: A
4
1
1
2
-
03
Description
Model A 4 ½" Panel Mount Housing
Display
4
LED display, process arch, and OLED
Function 1 Control (2) SPDT relays
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)

Menu Navigation - Series A4 Digital Differential Pressure Control

This video will cover how to navigate the menus of the Series A4 Digital Differential Pressure Control.

Zero and Span - Series A4 Digital Differential Pressure Control Sign in

This video will cover how to properly use the Zero and Span features of the Series A4 Digital Differential Pressure Control.

Moving Parameters - Series A4 Digital Differential Pressure Control

This video will cover how to the move parameters of the Series A4 Digital Differential Pressure Control.