深圳市坤博自动化设备有限公司

SHENZHEN KOBO Automatics CO.,Ltd.

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A4系列数字微差压计

The Series A4 digital differential pressure controller is a patent pending 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 OptiLink? 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.

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Description
Model A   4 ½"  Panel Mount Housing
Display   1   LED display
2 LED display, process arch
3 LED display, process arch, and LCD
4
LED display, process arch, and OLED
6 LED Display, OLED, and 316L SS Cover
Function   0   Indication
1 Control (2) SPDT relays (A3/A4/A6 only)
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)
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12
0 - 40" (10 kPa)
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13
0 - 50" (12.5 kPa)