ULTRASONIC SENDER / RECEIVERS

Download the Sender/Receiver Detailed Delta Controls Datasheet 
Note: You will need the Acrobat Reader to view the data sheet. 

Features

• Fits through holes from ¾ " NPT to 6" pipe I.D.
• Piston action narrows beam spread increasing usable power
• Ranges from 5 inches to 120 feet (0.15 to 38m)
• S/R is hermetically sealed; submersible, and corrosion resistant
• Construction is by welding and filling
• Piezo crystal is Mil-Spec for reliability
• High accuracy two-wire integral temperature transmitter improves level measurement; and may also be used to monitor the process
• S/R face may be flush at the mounting nozzle, or extended 10 feet into the tank

Application

Ultrasonic level transmitters are widely used in the various process industries and in municipal water and wastewater facilities to measure products which are gummy, abrasive, dirty, viscous or corrosive. The sender/receiver (sensor) mounts above the product to be measured and normally does not come in contact with it.

Operating Principle

A high frequency sound pulse is transmitted to the surface of the product by the sender/receiver. The sound pulse strikes the surface of the product and is reflected back to the sender/receiver as an echo.

The echo marks the end of an electrical timing period. Transit time to and from the surface is thus measured and divided by two to yield the actual distance that the sound pulse has traveled.

Configurations

Delta Controls designs and manufactures its own sender/receivers. All are completely sealed and submersible. All operate in pressurized vessels up to 50 PSIG. Some Delta sender/receivers can operate in temperatures up to 300ºF (150ºC) and down to –40ºF (-40ºC). Liquid condensation on the face of a sender/receiver will not impair normal operation. Custom modifications to suit difficult services are easily and quickly done by Delta Controls.

Sender/receivers are available in two basic mounting configurations; stem mount and flanged flush mount. Stem mount S/R’s can be provided with NPT fittings at the process end or with flanges supporting the stem neck. Long stem neck extensions are available.

Flush mount sender/receivers always include epoxy/glass flanges that are faced with a layer of a corrosion resistant material such as Teflon^®,Kynar^®, 316 SS or one of the Hastelloys^®. The face is the only part wetted by the process.

Specifications

• Stem Type: PVC, Polypropylene or Kynar^® (PVDF) wetted.
• Flush Face: 316 SS, PTFE Teflon^®, Kynar^®, Hastelloy^®
• Wetted materials can be varied to suit the application.
• Pressure Limits: 10 PSIA (vacuum decreases range) to 50 PSIG. (0.7 to 3.5 bar).
• Body Service Temperature Limits:

• PVC: -20 to -140ºF (-30 to +60ºC)
• Kynar^®: -40 to +230ºF (-40 to 110ºC)
• Kynar^®: -40 to 300ºF (-40 to +150ºC) with high temperature parts

 

DESIGNED AND MANUFACTURED IN THE USA BY DELTA CONTROLS

Go to Delta Controls Home Page

<sr>