Form: ORION-OE258-01-BldgPressSensor-1A.doc Page 1 of 1
Description
The OE258-01 Building Pressure Sensor
is used to sense building pressure in ap-
plications where monitoring of the build-
ing static pressure is required to insure
the building maintains the proper air
pressurization.
The OE258-01 Building Pressure Sensor
case is molded from fire retardant glass
filled polyester. The sensor utilizes a ten-
sioned stainless steel diaphragm and
insulated stainless steel electrode. This
arrangement allows up to 10 PSI over-
pressure without damage to the unit. The
sensor provides a 0.0 to 5.0 VDC output
in response to a –0.25 to +0.25 inch WC
pressure differential. Accuracy is ± 1% of
full scale of the sensor.
For easy wiring the OE258-01 Building
Pressure Sensor has (3) 6-32 screw ter-
minal wiring connectors. The sensor has
(2) ¼” barbed fittings provided for the
connection of tubing to the high and low
pressure ports.
The OE258-01 Building Pressure Sensor
is designed to be mounted to a flat sur-
face by means of the (2) 0.156 diameter
holes provided in the sensor casing. For
accurate readings the sensor must be
mounted in a vertical position.
Technical Data OE258-01 - Building
Pressure Sensor
Operating Pressure
Range
-0.25” WC to +0.25” WC
Pressure Differential
Power Input
Signal Output
9-30 VAC or 9-30 VDC
0 to 5 VDC
Operating Temp
0°F to 150°F
Hysteresis
± 0.1% of full scale
Circuit 3 Wire Non-repeatability
± 0.05% of full scale
Accuracy
± 1% of full scale
Weight 3 ounces
Three Year Warranty
WattMaster reserves the right to change specifications without notice
HIGH
MODEL 265
LOW
-
+
+
+
1.89
0.95
3.16
2.74
setra
0.95
1.64
0.156 DIA. HOLE
TYP. 2 PL.
OE258-01 Building Pressure Senso
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