Sensocon, Inc. Low Pressure Differential Pressure Gausges and Sensors

Series A1

Digital Differential Pressure Gauges

The series A1 is a patent pending microprocessor based digital pressure gauge for positive, negative, and differential measurement designed to be a direct replacement for mechanical gauges. The Series A1 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% accuracy. The A1 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 also features 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 compare to mechanical gauges for a similar 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 (-23° to 60°C)
Thermal Effect*:	+/- 0.012% FS/°F
Output Signal:	4-20 mA (option)
Loop Resistance:	750 Max (for internally sourced power) 1800 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
Electrical Connections:	screw terminals
Response Time:	<100 ms
Display:	4 Digit, red LED, ½" digits
Process Connection:	Push on connection for 3/16" tubing
Agency Approvals:	Pending - UL, C-UL, CE

Dimensional Drawing

Gauge

Gauge with Weather-proof Cover

EXAMPLE	A	1	0	1	0	-	03	Description
Model	A							Round 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 OLCD
Function			0					Indication only
Function			1					Control 2 SPDT relays (A3 or A4 only)
Transmitter				0				None
Transmitter				1				4-20 mA
Accuracy					0			1%
					1			0.50%
					2			0.25%
Range						-	01	0 - 0.5"
						-	02	0 - 1"
						-	03	0 - 2"
						-	04	0 - 3"
						-	05	0 - 4"
						-	06	0 - 5 "
						-	07	0 - 8 "
						-	08	0 - 10 "
						-	09	0 - 15 "
						-	10	0 - 20 "
						-	11	0 - 30 "

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