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Aalborg PWE10P-ELN-A5
Aalborgzoom
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Description:
<p><strong>Aalborg, PWE10P-ELN-A5, PWE Digital Paddle Wheel Flow Meter </strong> </p> <p><strong>Features: </strong> </p> <ul><li>Jewel bearings allow for very low minimum flow rates </li> <li>Supports up to 29 Engineering Units (including User Defined) </li> <li>Two programmable Totalizers and Flow Pulse output (3.3Vdc CMOS) </li> <li>Programmable High / Low Flow </li> <li>Two sets of user-programmable optically isolated outputs </li> <li>Enclosure weather tight to IP65 standards </li> <li>Free communication software with temperature and flow data log-in capability </li> </ul> <p>PWE flow meters support various functions including: two independently programmable flow totalizers, user programmable low, high or range flow and temperature alarm, two sets of user programmable optically isolated outputs, self diagnostic alarm, flow pulse output. </p> <p>Principles of Operation. Liquid flowing through the unit causes the paddle wheel to spin. As the magnets embedded in the paddle spin past the sensor, electrical pulses are produced in which frequency is proportional to the flow rate. The number of pulses per desired time interval and the K-factor (number of pulses/gallon) make it is possible to calculate the flow rate and volume passing through the unit. On board CPU and signal conditioner circuitry perform accurate flow and total computation. Non-volatile memory stores all hardware specific and user programmable variables, including flow linearization table. </p>

Attributes

Key ^Value
Ambient Temperature Range14 ?F to 140 ?F (-10 ?C to 60 ?C)
CalibrationsPerformed at standard conditions [14.7 psia (101.4 kPa) and 70 ?F (21.1 ?C)]
Digital Interface5 - RS-485
Display / KeypadL - LCD / Key Pad
Electrical ConnectionsBuilt-in female 12 pin M16, IP67 connector
Environmental (per IEC 664)Installation Level II / Pollution Degree II
Flow Accuracy (Including Linearity)?1% of FS
Flow MediumPlease note that PWE Flow Meter are designed to work only with liquids. Never try to measure flow rates of dry gas.
Flow Pulse Output3.3 Vdc amplitude (3000 ohms min load impedance)
Flow Response TimeApproximately 1 seconds (above 10% of full scale flow), approximately 2 seconds (below 10% of full scale flow)
Liquid Temperature Measurement Range34 ?F to 140 ?F (1 ?C to 60 ?C)
Lower Block MaterialP - Polypropylene
Maximum Pressure10 barg (150 psig)
Optically Isolated OutputsUCE 40Vdc, ICE 150 mA
Orifice Size (Maximum Flow Range)10 - 35 gal / min (1.3 - 132.5 L/min)
Output SignalA - 0-5 VDC
Repeatability?0.25% of full scale
RTD OptionN - No RTD
SealE - EPDM
Temperature Accuracy (Including Linearity)?0.5 ?C
ViscosityCalibrated to 1 cSt (water) meters with display can be used for liquids up to 50 cSt with field calibration (maximum flow range may be affected)