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.
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 Channel | 4 channels + 1 tacho channel |
| Input Coupling | GND, Dif-DC, Sin-DC, AC, IEPE |
| Full-scale Voltage Value | ±0.1V, ±1V, ±10V, ±30V |
| Indication Error | 0.5% of F.S. |
| Nonlinearity | 0.1% of F.S. |
| LPF | |
| Cut-off Frequency： | 30Hz, 300Hz, 3kHz, PASS |
| Flatness: | <0.1dB (Within 1/2 of cutoff frequency) |
| Stop-band Attenuation: | >-18dB/Oct. |
| HPF | |
| Cut-off Frequency (-3dB±1dB) | 0.3Hz, 1Hz, 3Hz, 10Hz |
| Stop-band Attenuation | ≥-6dB/Oct. |
| Communication | WiFi and USB2.0 |
| A/D Converter | 24 bits |
| Freq. Response | 0.4 ~ 50kHz (+0.5dB ~ -3dB) |
| Max. Sampling Rate | 128kHz |
| Anti-aliasing filter | |
| Cut-off Frequency | 1/2.56 of sampling rate |
| Stop-band Attenuation | ≥-100dB/Oct. |
| Power Supply | Lithium battery |
| Dimensions | 122×102×34mm |
| Weight | Approx. 402g |
| Environmental Conditions | |
| Operating Temperature | - 20°C to 60°C |
| Operating Humidity | 5 ~ 90 %RH@50°C |
| Storage Temperature | - 40°C to 70°C |
| Storage Humidity | 90% RH 48h@60°C |
| Vibration | 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 | |
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