Portable Dynamic Signal Analyzer - DE-844W Portable Dynamic Signal Analyzer - DE-844W

The DE-844W Dynamic Signal Analyzers is a multi-channel simultaneous sampling dynamic signal test and analysis system, which is highly portable and suitable for industrial site. DE-844W can be used for remote monitoring via WIFI, and used for condition monitoring and fault diagnosis of rotating machinery such as pumps, fans, compressors and motors.

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  • Product Description
  • Specifications
  • System Configurations
  • Software
  • Modules/Accessories

 Compact, portable, easy to use, suitable for industrial sites.

 Wireless WiFi transmits signals to realize remote monitoring.

 System Control and signal analysis software can run on tablets.

 Built-in 24V/4mA biasing circuit, support IEPE sensors.

 Independent 24-bit A/D converters per channel with selectable sampling rate of up to 128kHz.

 Built-in low-pass filter, high-pass filter and Anti-aliasing filter.

 Support hardware quadratic integration

Number of Input Channel4 channels + 1 tacho channel
Input CouplingGND, Dif-DC, Sin-DC, AC, IEPE
Full-scale Voltage Value±0.1V, ±1V, ±10V, ±30V
Indication Error0.5% of F.S.
Nonlinearity0.1% of F.S.
     Cut-off Frequency:30Hz, 300Hz, 3kHz, PASS
     Flatness: <0.1dB (Within 1/2 of cutoff frequency)
     Stop-band Attenuation:>-18dB/Oct.
     Cut-off Frequency (-3dB±1dB)0.3Hz, 1Hz, 3Hz, 10Hz
     Stop-band Attenuation ≥-6dB/Oct.
CommunicationWiFi and USB2.0
A/D Converter24 bits 
Freq. Response0.4 ~ 50kHz (+0.5dB ~ -3dB)
Max. Sampling Rate128kHz
Anti-aliasing filter
     Cut-off Frequency1/2.56 of sampling rate
     Stop-band Attenuation≥-100dB/Oct.
Power SupplyLithium battery
WeightApprox. 402g
Environmental Conditions
     Operating Temperature- 20°C to 60°C
     Operating Humidity5 ~ 90 %RH@50°C
     Storage Temperature- 40°C to 70°C
     Storage Humidity90% RH 48h@60°C
Frequency cycle range: 5Hz ~ 55Hz ~ 5Hz
Drive amplitude (peak): 0.19mm
Sweep frequency: ≤1Oct./min
Duration of resonant: 20min
Vibration direction: x, y, z

Figure 1  Block Diagram of Wired Connection System

Figure 2  Block Diagram of Wireless Connection System

DE-BPS Basic Platform Software

  • Running on XP/Win7/Win8/Win10 operating system

  • Parameters setting, Function control, Real-time/post-acquisition analysis, data browsing, cursor readouts, scaling curve, data management and simple processing, report generation, long-term continuous data recording, etc.

AP01 Android Software App (Optional)

  • Mobile phone control and analysis

  • Parameter setting, sampling control, data management, etc.

  • Time domain & amplitude domain analysis

  • Frequency domain analysis based on FFT

  • Download APP software through the QR code on the collector

 TM01 Tachometer
  • Ingress Protection : IP65

  • Explosion-proof grade: Exib Ⅱ BT4

  • Used for rotation measurement and order analysis


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