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Flow Measurement and Controls (Badger Meter)

Insertion Style Flow Sensors – 220 Series

220 Series sensors are specifically designed for installation in underground vaults that might be subjected to flooding. As the liquid flow turns the impeller, a low impedance 8V DC square wave signal is transmitted with a frequency proportional to the flow rate. This signal can travel up to 2,000 feet between the sensor and the display unit without the need for amplification.

Category: Flow Measurement and Controls (Badger Meter)
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  • Description

Used in most general flow measuring applications in metallic or non-metallic pipes.

  • Cost savings over other systems offered on the market today
  • Impeller, bearing, and shaft are easily replaced in the field without changing the calibration
  • Impeller shape coupled with the absence of magnetic drag provides accuracy and repeatability
  • Temperature Ratings
    Standard Version: 221 °Fcontinuous service
    High-Temperature Version: 285 °F continuous services; 305 °F peak temperature (limited duration)
  • Pressure Ratings
    At 100° F: 400 PSI
    At 300° F (High-Temperature Version Only): 325 psi
  • Recommended Design Flow Range
    0.5…30 ft/sec Initial detection below 0.3 ft/sec
  • Accuracy
    ± 1.0% of full scale over the recommended design flow range
  • Repeatability
    ± 0.3% of full scale over the recommended design flow range
  • Linearity
    ± 0.2% of full scale over the recommended design flow range
  • Transducer Excitation
    Supply voltage = 8V DC min. 35V DC max.
    Quiescent current = 600 µA (typical)
    OFF State (VHigh) = Supply voltage – (600 µA * Supply impedance)
    ON State (VLow) = 1.2V DC @ 40 mA (15 Ω + 0.7V DC)
  • Output Frequency
    3.2…200 Hz
  • Output Pulse Width
    5 msec ±25%
  • Electrical Cable for Standard Sensor Electronics
    20 ft (6 m) of 2-conductor 20 AWG shielded UL type PTLC wire provided for connection to display or analog transmitter unit. Rated to 221° F (105° C). May be extended to a maximum of 2000 ft (610 m) with similar cable and insulation appropriate for the application.
  • Electrical Cable for IR Sensor Electronics
    48 in. (122 cm) of UL style 116666 copper solid AWG 18 wire with direct burial insulation. Rated to 221° F (105° C).

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