By means of multi-layer shielding and advanced isolation technology, DE-918 High-performance Isolated Dynamic Signal Test and Analysis System is especially suitable for accurately measuring physical quantities such as stress, strain, force, pressure, velocity and acceleration under high radiation and strong interference conditions.
Modular design, expandable to over 500 channels via Gigabit Ethernet
Super anti-interference ability comes from the high isolation of input-output and channel-channel, multi-layer shielding
and reasonable grounding
Independent 18-bit SAR A/D converter per channel with selectable sampling rate of up to 200kHz
Built-in bridge completion and excitation
Built-in 24V/4mA biasing circuit, support IEPE sensor
Built-in Butterworth low-pass filter and anti-aliasing filter
DMA for real-time, high speed, stable data transmission
Suport EID and TEDS
Input protection and signal state indication
| Number of Input Channel | 1 channle/card, 8 card slots (19" 3U chassis) |
| Input Coupling | GND, Dif-DC, Sin-DC, AC, IEPE |
| Input Impedance | 30MΩ / 100pF |
| Full-scale Voltage Value | ±0.005V, ±0.01V, ±0.02V, ±0.05V, ±0.1V, ±0.2V, ±0.5V, ±1.0V, ±2.0V, ±5.0V, ±10.0V |
| Indication Error | <0.05% of F.S. |
| Stability | <0.01%/24h |
| Nonlinearity | ≤0.005% |
| Distortion | ≤0.5% |
| Noise | ≤2μVRMS |
| Zero Drift | <1μV/24h |
| CMV | ±500V (DC/AC peak value) |
| CMR | ≥120dB |
| Full-scale Strain Value | ±1000με, ±10000με, ±100000με |
| Bridge Excitation | |
| Bridge Configuration | Full, half, three-wire quarter bridge |
| Bridge Completion Resistors | 120Ω/350Ω (Three-wire quarter bridge) 50Ω ~ 10000Ω (Half bridge / Full bridge) |
| Bridge Voltage | 2V, 5V, 10V, 24V DC Within 0.01% |
| Current | Max. 50mA |
| LPF | |
| Transfer Characteristic | Butterworth low-pass filter |
| Cut-off requency (-3dB±1dB) | 1Hz, 3Hz, 10Hz, 30Hz, 100Hz, 300Hz, 1kHz, 3kHz, 10kHz, PASS |
| Flatness | <0.1dB Within 2/3 of cut-off frequency |
| Stop-band Attenuation | >-18dB/Oct. |
| Communication | Gigabit Ethernet |
| A/D Converter | 18-bit SAR |
| Freq. Response | DC ~ 100kHz (+0.5dB ~ -3dB) |
| Max. Sampling Rate | 256kHz |
| Anti-aliasing Filter | |
| Filtering Mode | Analog filter and real-time digital filter |
| Cut-off Frequency | 1/2.56 of sampling rate |
| Stop-band Attenuation | - 150dB/Oct. |
| Flatness | ±0.1dB Within analysis frequency range |
| Power Supply | 100 ~ 240VAC, 50 ~ 60Hz, 100W |
| Dimensions | 482×133×338mm |
| Weight | Approx. 20.5kg |
| Environmental Conditions | |
| Operating Temperature | - 10°C to 50°C |
| Operating Humidity | 20 ~ 90%RH@40°C |
| Storage Temperature | - 40°C to 60°C |
| Storage Humidity | 90%RH24h@50°C |
| Vibration | Frequency cycle range: 5Hz ~ 55Hz ~ 5Hz Drive amplitude (peak): 0.19mm Sweep frequency: ≤1Oct./min Duration of resonant: 10min Vibration direction: x, y, z |
Figure 1 Single System Block Diagram
Figure 2 Multi-system Block Diagram
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.
| DE-918 DAQ Card | |
ing rate of up to 200kHz
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| 19" 3U Chassis | |
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| DT5857-8 Charge Conditioner (Optional) | |
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| DT5855-8 Charge Quadratic Integral Conditioner (Optional) | |
Primary integral: 10Hz ~ 10kHz or 1Hz ~ 1kHz Quadratic integral: 10Hz ~ 1kHz or 1Hz ~ 100Hz
Primary integral: <3% Quadratic integral: <5%
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| DT5856-8 IEPE Quadratic Integral Conditioner (Optional) | |
Primary integral: 10Hz ~ 10kHz or 1Hz ~ 1kHz Quadratic integral: 10Hz ~ 1kHz or 1Hz ~ 100Hz
Primary integral: <3% Quadratic integral: <5%
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| DT3811-8 Current Loop Conditioner (Optional) | |
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| DT3814-8 Thermistor Conditioner (Optional) | |
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| DE-9-S Signal Source Module (Optional) | |
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| TM03 Tachometer (Optional) | |
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| DT5611A Synchronization Box (Optional) | |
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| C-1 Cable | |
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