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Low Differential Pressure
ACI/DP



Product Description:

The ACI/DP series is a line of differential pressure transmitters. The transmitters are capable of sensing full scale ranges down to 0.1" of water. Each ACI pressure transmitter is a high quality device designed using a variable capacitance sensor. Variable capacitance sensors have good signal to noise ratio and are not plagued by temperature drift. The transmitter electronics provide a two-wire, linear 4 to 20 mA signal or an optional voltage output. Accuracy is +/- 1% of full scale over the compensated temperature range. The transmitter can be powered by an unregulated 7-35 VDC supply, and is not polarity sensitive. In addition to the requested span each transmitter is capable of being field adjusted to three additional spans with the included jumpers. This feature provides greater flexibility in the field. Commonly available spans are 0 to 0.25", -0.5 to 0.5", 0 to 1",0 to 2.5", and 0 to 5".

ACI pressure transmitters can be used in many different applications. They can be used in static pressure applications such as pressure control in rooms or leak detection. Another application is monitoring filter blockage. In combination with a pitot tube or orifice plate, flow can be measured and controlled in ducts. This pressure transmitter uses a durable and proven technology to provide lengthy and stable performance.

All ACI/DP low differential pressure transmitters come factory calibrated with a 2 year warranty.

Product Specifications:
Input 7 to 35 VDC Non-Polarity Sensitive Transmitter Accuracy +/- 1% of Span
Output 2 Wire, Linear 4 to 20mA DC Current Operating Range 10 to 40C
Response Time 15msec - 63% full scale step Linearity+/- 0.3% of span
Position Effect 2% Null shift from vertical to horizontal Connections3/16" barbed brass
Pressure Overload Span < 2" H2O Temperature Error Span < 2" H
Positive Pressure 1.0 psi Null+/- 2.0% FSO
Negative Pressure 0.5 psi Span+/- 2.0% FSO
 Span > 2" H2O Span > 2" H2O
Positive Pressure 5XNull +/- 1.0% FSO
Negative Pressure 3XSpan +/- 1.0% FSO


Ordering Information:
Factory Set Field Selectable Ranges Output
ACI/DP -[]-[] -[]-[]
(1) +/- 1.0"+/- 2.0" +/- 1.5"+/- 1.25" (1)1 to 5 VDC
(2) +/- 0.5"+/- 0.4" +/- 0.3"+/- 0.25" (2)2 to 10 VDC
(3) +/- 0.25"+/- 0.5" +/- 0.4"+/- 0.3" (3)3 to 15 VDC
(4) 0 to 0.1" (4)4 to 20mA
(5) 0 to 0.5"0 to 0.5" 0 to 0.4"0 to 0.25"
(6) 0 to 1.0"0 to 0.8" 0 to 0.6"0 to 0.5"
(7) 0 to 2.0"0 to 2.5" 0 to 1.5"0 to 1.0"
(8) 0 to 3.0"0 to 5.0" 0 to 4.0"0 to 2.5"
(9) 0 to 5.0"0 to 4.0" 0 to 3.0"0 to 2.5"
(10) 0 to 10.0" 0 to 8.0"0 to 7.0" 0 to 5.0"
(11) Please Specify
Example: ACI/DP-(9)-(4)

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Last Updated 03/18/10