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DL1740 Yokogawa Digital Oscilloscope


The DL1740 is a 500 MHz, 4 Channel digital oscilloscope from Yokogawa.


  • 500 MHz
  • 4 Channel
  • 1 GS/s
  • 1 MPts
  • 6.4-inch wide-angle-view TFT color LCD 
  • Compact and lightweight (approx. 5.5 kg)
  • A4-size footprint 
  • Newly developed DSE chip for high-speed screen updating
  • Built-in Zip® drive or FDD 
  • USB-compliant 
  • Search functions (History Search & Zoom) 
  • Easy to use


  • Input coupling: AC-1 MΩ, DC-1 MΩ, DC-50 Ω, GND
  • Input impedance: 1 MΩ ±1.0%, 50 Ω ±1.0%
  • Voltage-axis sensitivity range: 50-Ω input: 2 mV—1 V/div (in 1, 2 or 5 mV increments)
  • Maximum input voltage: 1-MΩ input (at 1 kHz or less frequencies): 400 V (DC + AC peak)—282 Vrms CAT II
  • Frequency characteristics 1 (-3 dB roll-off point for sine-wave input with ±4 div amplitude): 50-Ω input: 1 V—10 mV/div over 0 (DC) to 500 MHz, or 5 mV—2 mV/div over 0 (DC) to 400 MHz
  • A/D conversion resolution: 8 bits (24 LSBs/div)
  • Maximum sampling rate: Real-time sampling mode when interleave mode is on: 1 GS/s 2, when interleave mode is off: 500 MS/s
  • Maximum record length: When interleave mode is on: 1 MW 2
  • DC-mode accuracy 1: ± (1.5% of 8 divisions + voltage-axis offset accuracy)
  • Voltage-axis offset accuracy*1: 2 mV—50 mV/div: ± (1% of setpoint + 0.2 mV)
  • Sweep time: 1 ns—50 s/div (for 10-KW or longer record length)
  • Timebase accuracy 1: ±0.005%
  • External clock input: Within the 40 Hz—20 MHz input frequency range (for continuous clock signals only)

The Yokogawa DL1740 is a digital oscilloscope. Even a measuring instrument with higher sampling performance may fail to precisely capture waveforms, depending on the time interval of observation. This failure results from a decrease in the effective sampling rate due to shorter record lengths of memory. Large recording memory not only helps extend the observation time interval but prevents the sampling rate from degrading. This allows correct waveform observation. Using the zoom functions along with the large recording memory enables you to scrutinize part of a waveform you’ve caught into the memory. You can set two zoom-in areas at the same time.

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