TEII-FM-US-872

General

The TEII-FM-US-872 manufactured by Tipton Environmental International, Inc. is a flowmeter and 10” circular paper chart recorder with the capability of displaying the current flow rate and/or accumulated total. The flowmeter sensor is housed in a type 4X hose-proof weather protected enclosure and the electrical controls with the chart recorder are installed in a NEMA 4 painted steel enclosure.

Background

The TEII-FM-US-872 ultrasonic sensor is an ultrasonic level sensing device used to transmit the flow rate of a liquid in an open channel configuration. The unit is positioned over the surface of the liquid upstream from a measuring weir or flume. A series of high frequency sound waves are generated during the "send" portion of the cycle. The sound waves travel through the air space between the face of the Sender/Receiver (S/R) unit and the liquid surface. The sound waves strike the liquid surface, are reflected, travel back to the S/R unit, and are detected during the "receive" portion of the cycle. The time elapsing between "send" and "receive" is measured and corrected for speed of sound variations due to ambient temperature variations, and is used by the instrument to calculate the crest level. The sensor produces a 4-20 mA signal that is linearly proportional to flow rate.

Installation

The TEII-FM-US-872 ultrasonic level sensor is to be secured into position via a 2” NPT coupling. Electrical controls for the sensor shall be housed in a NEMA 4 painted steel enclosure which can be wall mounted. Clearly labeled terminal blocks will allow for easy field wiring connections.

Features

• Versatile – Measures a wide range of effluents
• Sensor Submergible To 100 Feet (30M); Gastight
• Improved Personnel Safety for Hazardous Places Such As Sewers, Pump Pits, Covered Lagoons, Etc.
• Optional Remote Configuration And Calibration
• Suitable For Most Flumes, And Weirs; Also Custom Linearizations To User Supplied Tables.
• Intrinsically Safe Classification Improves Safety And Lowers Cost Of Installation And Operation
  

Specifications

• Measurement Range: 1 to 8 feet (30 to 250 cm)
• Beam Angle: ±7° at the 3 dB down boundary
• Output: 4-20 mA analog (Optional)
• Built-in Temperature Compensation: Yes
• Accuracy: Better than 0.25% of maximum range
• Supply Voltage: 120 volt, 1 phase, 60 hertz
• Ambient Temperature: -10°F to +140°F (-40 to +60°C)
• Sensor Housing: Type 4X Hoseproof
• Sensor Wiring: Robust cable with a tough rubber jacket; 10 ft (3 M) basic, longer lengths optional.
• Calibration: Integral keypad, and calibrated at factory
• Mounting Connection: 2” NPT Male
• Materials: PVC
• Typical Flow Elements: Parshall and Palmer Bowlus flumes; Rectangular, V-Notch and Cipolletti weirs
  

Typical Installation

Typical Mounting for Installations