Replace Float-Trees with Flowline’s non-contact EchoPod®

Multiple point level switch assembly.  Drawing appears courtesy of Flowline.

Float trees are connected to an external controller, providing control logic and actuation with a pump/valve or multiple alarms. The typical 4-point configuration includes Hi-Hi, Hi, Lo and Lo-Lo set points. The HI-Hi and Lo-Lo points are alarms. The Hi and Low points define the control span in which the pump or valve will be actuated to fill or empty the tank. While these two separate components provide level detection and control, they do so with the following limitations:
• The float switch assembly and it's set points are fabricated to order and cannot be altered.
• Float switches often fail due to contact with corrosive, sticky or dirty liquid.
• The float switch, controller wiring harness and controller hardware increase installation and hardware costs.
• If float switch is connected to a PLC, changes are software driven and can only be done by trained staff or contractors.

EchoPod® Ultrasonic Level Switch & Controller

Level sensors installed on an oil recovery system for cutting tools. Photo appears courtesy of Flowline.

Application

The general purpose ultrasonic level switch provides continuous level detection up to 49.2" (1.25m) with 4 programmable relays for level switch or level control functions, and is configured via our free WebCal software. The embedded level controller can lower cost by replacing external control hardware. This non-contact liquid level sensor is ideally suited for corrosive, sticky or dirty liquids, and is broadly selected for small day tank, skid, IBC, sump and process tank level applications.

Features

  • Switch and control functions with continuous level measurement output up to 49.2" (1.25m)
  • Configuration is fast and easy via WebCal software and USB adapter
  • Narrow 2" beam width and short 2" dead band optimized for small tanks
  • Four (4) programmable relays rated @ 1A / 60VA for switch, pump or valve control and fail-safety
    • 1 pump or valve with 3 alarms
    • 2 pumps (lead-lag) with 2 alarms
    • 2 pumps (duplexing) with 2 alarms
    • 4 independent switch point alarms
  • PVDF transducer and 6P polycarbonate enclosure for corrosive liquids

A successful example

Level sensors installed on an oil recovery system for cutting tools. Photo appears courtesy of Flowline

Machined tools are essential to almost every industry including manufacturing, defense, mining, and oil drilling. The process of machining tools has increased in efficiency and output through advances in technology. However, as tools become faster they generate heat from friction between the tool and the raw material or scrap. If the tools cutting edge heats up enough the tool can fuse to the scrap, causing irregular machining or damage to the cutting tool. To prevent this, cutting oil is used as a lubricant to keep heat transfer at a minimum.

This manufacturer has chosen an EchoPod® DS14 to monitor both clear cutting oil and used oil. The used oil can be recycled by filtering to remove the cutting chips. This increases oil cycle time for machine operation enabling greater capacity output by eliminating machine downtime due to frequent oil change.

Upgrade your contact float switch with a non-contact EchoPod® DS14 with 4-20mA output.