DT9837 Series USB Modules for Sound and Vibration Analysis

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Benefits of the DT9837 Series High-Accuracy Dynamic Signal Acquisition Modules

  • 4 simultaneous 24 bit analog inputs, IEPE supported, and one tachometer input.
  • Ideal solution for portable noise, vibration, and acoustic measurements.
  • Reliable BNC connectors for all I/O channels.

DT9837 Series USB Modules for Sound and Vibration Analysis

Models DT9837 (6069-410-142), DT9837A (6069-410-041), DT9837B (6069-410-048) With 4 Simultaneous Channel 24 bit ADC

The modules of the DT9837 series are high-accuracy dynamic signal acquisition boxes for Windows-PC/USB. The are an ideal solution for portable noise, vibration, and acoustic measurements. Four 24-bit IEPE (ICP) sensor inputs are synchronized with a tachometer input (depending on model) to provide data streams that are matched in time, for field and laboratory use. The DT9837 are rugged, compact, USB-powered modules for stationary as well as portable measurement applications.

  • Four simultaneous analog input channels.
  • 24 bit Delta-Sigma A/D converters for high resolution measurements.
  • Support for IEPE (Integrated Electronic Piezoelectric) inputs, including use of a 2 mA or 4 mA current source and AC or DC coupling.
  • Up to 105.4 kS/s sample rate per channel.
  • Input range ±10 V with software-selectable gains x1 and x10 for an effective input range of ±10 V and ±1 V, respectively.
  • Return the value of tachometer counter 0 in the analog input data stream, to measure the period or frequency of the tachometer input signal synchronously with analog input measurements.
  • DT9837A, DT9837B: Read the value of tachometer counter 1 in the analog input data stream, allowing you to precisely correlate tachometer measurements with analog input measurements.
  • DT9837B: Read the value of gate counter 2 in the analog input data stream, allowing you to precisely correlate gate input measurements with analog input measurements.
  • DT9837A: Support for reading analog output values in the analog input data stream, allowing you to correlate input and output values.
  • Software-programmable trigger source (software trigger, external digital trigger, or analog threshold trigger) to start the analog input operation./li>
  • Internal clock source (shared between the analog input and analog output subsystems).
  • DT9837A and DT9837B: RJ45 synchronization (LVDS) connector for synchronizing acquisition on up to four modules.
  • BNC connectors for all channels.
  • USB 2.0 connectivity to a Windows-PC, USB-powered.

Model Overview

ModelDT9837 (6069-410-142) - EOL/obsoleteDT9837A (6069-410-041)DT9837B (6069-410-048)
Analog inputsNumber4, single-ended, simultaneous channels
A/D conversion24 bit, 52.6 kS/s24 bit, up to 105.4 kS/s
Range±10 V with software-selectable gains of 1 and 10 for an effective input range of ±10 V and ±1 V, respectively
High-pass filter0.5 Hz0,1 Hz0,5 Hz
AC/DC coupling
Current source4 mA
A/D threshold triggerFixedProgrammable
Tachometer✓ 1 channel✓ 1 channel✓ 1 channel
Analog output readback--
Analog outputNumber1 channel, single value; buffer mode1 channel, waveform streaming; buffer mode, streaming mode-
D/A conversion24 bit, 46.875 kS/s (fixed)24 bit, 52.7 kS/s-
Range±10 V±10 V, ±3 mA output current-
Trigger typesSoftware triggerSoftware trigger, external digital trigger, or analog threshold trigger-
Multiple module synchronization-✓ RJ45 synchronization (LVDS)
ConnecitivityUSBUSB 2.0; USB-powered
Analog inputs3x BNC and 1x BNC for tachometer input channel
Analog outputs1x BNC and 1x BNC for external trigger-

Included: Module DT 9837, 98137A, or 9837B, software and user manual via download.