aci P51 Series Installation & Operation Instructions

P51 SERIES GAGE PRESSURE
TRANSDUCER
Installation & Operation Instructions
GENERAL INFORMATION
The P51 Series is designed to provide excellent
accuracy and reliability in commercial, industrial,
and process control applications where performance
is critical. The P51 Series is available in three
pressure sensing types: Gage (PSIG), Sealed Gage
(PSIS) and Absolute (PSIA). Gage (PSIG) sensors
measure pressure relative to ambient pressure
through a port that is open to the atmosphere, and
are used in lower pressure applications where
measurement in a vacuum is not required. Sealed
sensors (PSIS) measure pressure relative to a port
that is connected to a sealed perfect vacuum
chamber. Sealed pressure transducers are calibrated
to have 0.5 VDC, 1 VDC or 4 mA respectively at +14.5
PSIA. Absolute sensors measure pressure relative to
a perfect vacuum pressure (0 PSIA), which doesn't
change regardless of temperature, location or any
other ambient conditions such as weather.
OPTIONAL ACCESSORIES
Pressure Snubber
ACI recommends the use of the A/0.25" Snubber
(Water or Air/Gas) with all P51 series sensors. The use
of a pressure snubber is a cost-e ective solution that
can extend the life of your sensor by smoothing out
pressure spikes, surges and pulsations, and prevent
debris from collecting in the sensor diaphragm
opening. The A/0.25" Snubbers are made of 316
Stainless Steel and should be used with compatible
materials.
Syphons
The A/Syphon must be used to protect the sensor
from extreme operating temperatures when the
operating temperature of the steam being
monitored is higher than the maximum operating
temperature of the pressure sensor. There are three
bend con gurations available (90˚, 180˚, and 270˚) to
allow the mounting of the sensor vertically away from the main pipe.
NEMA 4 Enclosure
ACI recommends the use of a NEMA 4 enclosure to protect the gage pressure sensor in applications where
debris and moisture could contact the sensor or electrical connections. The A/GP-(xx)-NEMA 4 GP Series
pressure sensor is mounted in a NEMA 4 Rated, steel enclosure with one ½" conduit knockout. A ¼" male
NPT Stainless Steel tting is provided for installation to your pipe, tank, or reservoir.
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone: 1-888-967-5224 | Website: workaci.com
FIGURE 1: PRODUCT DIMENSIONS
Packard
2.77" (70.36mm)
0.71"
0.78" (19.81mm)
(18.03mm)
1.06"
(27.00mm)
I24
2.56" (65.02mm)
0.71"
(18.03mm)
(26.16mm)
7/8" HEX
Page 1
Phone: 1-888-967-5224
Website: workaci.com
Ø0.87"
(22.07m
m)
24.00"
(609.60mm)
1.03"
0.88"
(22.35mm)
Version: 3.0
I0000792