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.
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
| Name | Detail |
|---|---|
| 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
Figure 3 System Block Diagram
DE-BPS Basic Platform Software
Cross-Platform Compatibility Native support for Windows XP through Windows 10 (32/64-bit) Real-time kernel extension for deterministic operation
Comprehensive Data Workflow Acquisition control with programmable triggering Multi-tab interface for simultaneous time/frequency domain analysis Automated report generation (PDF/Excel formats)
Functional Module
Basic Operations
System Configuration
Channel-specific parameter presets Sensor database with TEDS support
Analysis Toolkit
Advanced cursor measurements (peak/valley tracking) Mathematical channel operations (+,-,×,÷, integration/differentiation) Custom scaling curves (polynomial/table-based)
Data Management
Streaming Architecture
Continuous recording limited only by storage capacity Hybrid binary/ASCII file formats Project-based organization with metadata tagging
AP01 Mobile Analysis Suite (Optional)
Device Requirements
Android 8.0+ with BLE 5.0 support
Minimum 4GB RAM recommended
Core Features
Remote Operation
Wireless device configuration
Start/stop acquisition control
Real-time monitoring dashboard
On-Device Analysis
Time waveform visualization
FFT spectrum analysis (up to 12,800 lines)
Octave band processing (1/1, 1/3, 1/12)
Deployment
Secure QR code provisioning
OTA firmware updates
Role-based access control
| Accessories | |
|---|---|
|
DT5640 Photoelectric Tachometer(Option)
Ingress Protection : IP65 Explosion-proof grade: Exib Ⅱ BT4 Used for rotation measurement and order analysis. |
 |
|
Charger 9V/2.55A output |
 |
| USB Communication Cable/Mobile Power cord
For charging |
 |
| BNC Patch Cord |  |
| Tachometric Signal Patch Cord |  |
| BNC Cable(Option) |  |
| IEPE Signal Input Cable(Option) |  |
| L5 Cable(Option) |  |
| Packing Case |  |
| Wireless Router |  |
| Software CD |  |