AGLS

Sump
Atmosphere
Pressure

Flow
Tube
Pressure

The Sligo Systems Above Grade Level Sensor (AGLS) is a highly accurate and reliable means of measuring remote sump liquid levels.  The only components that go into the sump or riser are the solid HDPE flow tube and atmospheric vent tube. 

A variable speed pneumatic pump is used to pressurize the flow tube, producing a small stream of bubbles at bottom of the sump or inlet of of the pump.  By measuring the pressure in the flow tube and the pressure of the sump atmosphere, the fluid level in the sump can be accurately calculated.

All electronics and sensor elements are contained in an above grade NEMA 4X enclosure and away from the hazardous sump atmosphere. This  configuration provides easy access for maintenance and troubleshooting.  No more pulling pumps to resolve level sensor issues.

• All components easily accessible in above grade NEMA 4X enclosure
• Automatic and manual flow tube purge
• Variable speed pneumatic pump automatically maintains constant bubble rate regardless of sump liquid level
• Differential pressure measurement method automatically corrects for gas vacuum extraction
• Automatic flow tube leak detection with alarm
• No electronics in hazardous environment eliminates need for intrinsically safe barriers
• Real-time LCD sump level display
• Single, double and triple configurations available
• Multiple output options: 4-20 mA, 0-5 VDC, RS-485, Ethernet
• Available setpoint control with output relays

Power:
Range:
Accuracy:
Sense Tubes:
Connectors:
Temperature:
Humidity:

100 - 240VAC, 1.5 A
0-138” WC Typical
0.1”
0.25” HDPE Up To 500’
0.25” Push Fit
0 - 140 degF
0-95% Non Condensing

Above Grade Level Sensor (AGLS)

A Simplified Maintenance Alternative To Submersible Level Sensors

123 North Orchard Street
Suite 1-B
Ormond Beach, FL
32174

386-615-8780
386-673-2293 fax

www.sligosystems.com