Rugged Data Acquisition System - RE-846U Rugged Data Acquisition System - RE-846U

The RE-846U Rugged Data Acquisition System, built-in industrial-grade control computer and electronic hard disk, especially designed for data acquisition in various harsh environments such as on-vehicle, airborne, and shipboard, used to complete testing and long-term monitoring work in extreme environments such as strong vibration, high temperature, high humidity, etc.. RE-846U can be connected to a computer via a wired network (LAN) or wireless network (WiFi) to collect, transmit, store, display and analyze data in real time, and can also work stand-alone to gather and store data in real time. After connecting to the computer, the data can be exported for analysis and processing. RE-846U is suitable for many occasions such as infrastructure, civil engineering, mechanical engineering, railway transit, scientific research and so on.

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

 With the use of high strength aluminum alloy chassis, lighter and stronger, waterproof, dustproof and anti-corrosion

 Up to 100g/(4±1)ms impact resistance

 Composed of built-in industrial-grade computer, large-capacity anti-vibration SSD, Gigabit Ethernet interface, large-

    capacity intelligent lithium battery pack power supply unit and various types of signal testing unit

 Suitable for harsh environment such as strong vibration, high and low temperature, high humidit, used for long-term 

    and unsupervised monitoring

 Includes two modes of on-line working and stand-alone working and switch freely

 Cooperated with various signal conditioning units, meet the input of any type ofsignal such as strain/stress, vibration, 

    pressure, flow, torque, voltage, charge, temperature

 With the function of synchronous recording and playback of voice, realize the synchronous playback of voice 

    information and data, so as to avoid the error caused by the inconsistency between test data and test conditions

 GPS module can be optional to realize the function of synchronous sampling among multiple instruments, travel 

    speed measurement, time calibration, latitude and longitude positioning

 Software-settable of full-bridge, half-bridge, and three-wire quarter bridge, easy to use

 Built-in 24V/4mA biasing circuit, low-pass filter and anti-aliasing filter,and support IEPE sensors

 Support intelligent wire identification, TEDS sensors access and bridge self-check function

 The sampling control and analysis software, which runs on Windows XP/7/8/8.1/10 OS, has word document activity 

    reporting function and multiple view display modes such as recorder, x-y recorder, color waterfall chart, color cloud 

    chart, instrument panel, bar chart, digital table, audio and video, 3D model chart, etc.

Number of Input Channel4 ~ 32 channels
Input Impedance10MΩ+10MΩ
Input Protection±15V (DC/AC peak value)
Input CouplingGND, Sin-DC, Dif-DC, AC, IEPE
IEPE Power4mA/24V
Full-scale Voltage Value±0.02V, ±0.05V, ±0.1V, ±0.2V, ±0.5V, ±1.0V, ±2.0V, ±5.0V, ±10.0V
Voltage Indication Error≤0.3%
Indication Stability0.1%/h
Zero Drift<3μV/h
CMV<±10V (DC/AC peak value)
Strain Measurement
     Full-scale Strain Value±1000με, ±10000με, ±100000με
     Indication Error≤0.3%±3με
     Self-Balancing Range±20000με (±2% of strain gauge resistance)
Bridge Excitation
     Bridge ConfigurationFull (Fore-Wire), Half (Fore-Wire), Quarter bridge (Three-Wire)
     Bridge Completion Resistors

120Ω/350Ω (Three-wire quarter bridge)

50Ω ~ 10000Ω (Half bridge / Full bridge)

     Bridge Voltage2V, 5V, 10V, 24V (Within 0.05/h)
     Max. Output Current30mA
     Cut-off Frequency (-3dB±1dB)100Hz, 1kHz, 10kHz, PASS
     Stop-band Attenuation >-24dB/Oct.
     Flatness<0.1dB (Within 1/2 of cut-off frequency)
CommunicationGigabit Ethernet / Wifi
A/D Converter24 bits
Freq. ResponseDC ~ 100kHz
Sampling Rate (Gigabit Ethernet)

Single chassis, 4~16 simultaneous inputs, up to 256kHz/channel, software-selectable

Single chassis, 17~32 simultaneous inputs, up to128kHz/channel, software-selectable

Anti-aliasing Filter
     Cut-off Frequency1/2.56 of sampling rate
     Stop-band Attenuation>100dB/Oct.
     Flatness±0.1dB (Within analysis frequency range)
Synchronization Modesynchronous clock box or GPS
Storage32GB or customization
Power Supplylithium battery, work while charging
Battery LifeOptional 4h and 8h of battery life (Fully charged and simultaneous sampling of 32 channels)
Power Consumption60W (32ch, inclu. control computer
Dimensions290mm×150mm×200mm (32 channels)
WeightApprox. 8.5kg (32 channels)
Environment Conditions
     Operating Temperature- 20°C ~ 60°C
     Operating Humidity5 ~ 90%RH@50°C
     Storage Temperature- 40°C ~ 70°C
     Storage Humidity90%RH48h@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
Ingress ProtectionIP65

 Figure 1  Single System block diagram (Ethernet Communication)

Figure 2  Single System block diagram (WiFi Communication)

Figure 3 Multiple System Block Diagram (Ethernet Synchronous Communication)

Figure 4. Multiple System Block diagram (WiFi Synchronous Communication)

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.

 RE-846U DAQ Module
  • 4 input channels

  • Support GND, SIN_DC, DIF_DC, AC, IEPE input

  • Full-scale voltage value from ±0.02V to ±10.0V

  • Full-scale strain value from ±1000με to ±100000με

  • Indenpendent 24-bit A/D converter per channel with continuous sampling rate of up to 256kHz

  • Frequency response range from DC to 100kHz

  • Built-in 24V/4mA biasing circuit, low-pass filter and anti-aliasing filter

  • Support intelligent wire identification, TEDS sensors access and bridge self-check function

  • Support EID and TEDS and bridge self-check

  • Shock Resistance up to 100g/(4±1)ms

  • IP65

 TC-01 Tachometer / Counter Module (Optional)
  • Channels2 channels

  • Power Supply: 5VDC@50mA

  • Rotation Speed Measurement

        Range: 30 ~ 300000 rpm

        Accuracy: ˂ 0.05%±1r

  • Counter Measurement

        Working Mode: Support positive/inverted, pulse accumulation counting, pulse counting in unit time

        Pulse Reset Method: Manual Reset

        Speed timing: 1 ~ 60000ms;

  • Software-selectable tachometer or counter function

 Signal Source Module (Optional)
  • Channels: 2 channels

  • Max. Output Voltage: ±10Vp

  • Max. Output Current: 5mA

  • Output Frequency Range: 0.1Hz ~ 20kHz

  • DAC Resolution: 24 bits

  • Frequency Resolution: 0.01Hz

  • Amplitude Accuracy: 1% (Within 2kHz signal range)

  • Singal Type: constant frequency sine wave, sweep frequency sine wave, square wave, random, burst random

 CAN Module (Optional)
  • Channels: 2 channels

  • Communication Protocol: CAN2.0B

  • BAUD: 4800bps ~ 1Mbps

  • Communication Mode: Simplex CAN bus for receiving

 DT5857-8 Charge Conditioning Unit (Optinal)
  • Max. Input Charge: 105pC (0.1mV/pC)

  • Input Resistance: >1011Ω

  • Amplifier Output Sensitivity: 0.1mV/pC or 10mV/pC

  • Indication Error: <1

  • Noise: <10×10-3pC

  • Max. Bandwith: 0.3Hz 100kHz (+0.5dB -3dB)

  • THD: <0.5% (Within 30kHz)

  • Dimensions: 40mm(W)×30mm(H)×100mm(L)

 DT3814-8 Thermistor Conditionint Unit (Optional)
  • 1 input channel

  • Suitable for Pt10, Pt100, Pt1000 sensors

  • Temperature Range: -200℃ ~ 850

  • Accuracy: 0.5%±0.5

  • Iout: 1mA±2µA

  • Dimensions: 30mm(W)×40mm(H)×100mm(L)

 DH3811-8 Current Loop Conditioning Unit (Optional)
  • 1 input channel

  • Suitable for 2-wire / 3-wire 4 ~ 20mA sensor

  • Power Supply: 24V DC

  • Dimensions: 30mm(W)×20mm(H)×80mm(L)


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