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Daniel Preamplifiers for Liquid Turbine Meters
Preamplifiers are a key component within Daniel™ Liquid Turbine Meters that reliably amplify and condition the low voltage, high impedance output emitted by the pickoff coil, transforming this output into high-voltage, low impedance pulses.
Regardless of low or high frequencies, the preamplifier matches the characteristic output of the turbine meter to ensure continuous signal transmission. It offers high sensitivity at low frequencies to enable the meter to effectively measure the lowest possible flow rates while reduced sensitivity at high frequencies prevents spurious counting due to radio frequency interference (RFI) and other spurious signals to improve measurement accuracy.
Daniel Preamplifiers for Liquid Turbine Meters


# of Inputs (Pickoff Coils)
1 or 2 (varies by model; refer to Daniel Series 1500 Liquid Turbine Meter datasheet)
Input Supply Voltage
10 to 40 VDC (varies by model)
Input Sensor Type
Input Signal
Sine Wave
Output Type
Square wave
Output Frequency Range
≤0 to 10 kHz (varies by model)
Temperature Range
-40°C to +85°C (-40°F to +185°F)


  • Regulation standards now demand more accurate flow measurement. With over 75 years of custody transfer experience, you can trust Daniel for reliable precision in prover calibrations and ensuring your prover is in compliance with measurement regulations.<
  • Improve measurement accuracy with continuous signal transmission during low or high frequency
  • Effectively measure the lowest possible flow rates with higher sensitivity at low frequencies
  • Prevent counting due to RFI and other spurious signals with reduced sensitivity at high frequencies
  • Communicate with a wide range of end devices using dual outputs
  • Reduce power consumption with no special power conditioning required
  • Rely on long-term performance with potted designs that endure significant shock and vibration