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IMU-3C
IMU-3C
3 Channel Real Time Seismic Data Logger
Supports Multiple Power Supply and Data Transmission Options
Main Features
New Generation 3-Component intelligent
monitoring unit
High resolution data with up to 0.25ms
sampling and 32-bit delta-sigma ADC
Externally connected with various
sensors
Built-in GNSS module, support internal and
external GNSS antenna
Built-in 4G module (support SIM card replacement),
achieve real-time data
transmission, parameter configuring
Support internal and external power
supply
Dual-LED indicator, indicates the acquisition
and data transmission status of
device
Built-in 4G antenna
SmartSolo®
IMU Peripherals
Single-port adapter charging
Single-port charging equipment
Low cost and fast charging solution

Single-port USB data download cable
Download speed reach 20MB/S
Specifications
Size and Weight
  • 136mm*120.7mm*88mm (w/o external 4G antenna)
Data Storage
  • 64GB
  • 128GB
Recharge Time
  • <7 hours
Operating Life@25°C
  • 60h 4G real-time transmission working mode@2ms
  • 25 days working offline@2ms
Communication
  • 4G/ Ethernet
External Power supply
  • 7~ 15V DC (single supply)
Acquisition Performance 5Hz
  • Natural Frequency : 5Hz
  • Distortion : < 0.15%@12 Hz 0.7 in/s Measured at peak-to-peak velocity, 0°~ 10°vertical angle 0°~ 3°horizontal angle
  • Damping : 0.6
  • Sensitivity : 80 V/m/s (2.03 V/in/s)
  • Remark : All parameters are specified at +22°C in the vertical position for vertical geophone and horizontal position for horizontal geophone unless otherwise stated
Acquisition Performance 2Hz
  • Natural Frequency : 2Hz
  • Distortion : ≤ 0.30% 0.7 in/s Measured at peak-to-peak velocity
  • Damping : 0.7
  • Sensitivity : 260 V/m/s (2.0 V/in/s)
  • Remark : All parameters are specified at +20°C in the vertical position for vertical geophone and horizontal position for horizontal geophone unless otherwise stated.
Physical Specs
  • Seismic data channel(s) : 3
  • ADC resolution : 32 bits
  • Sample intervals : 0.25, 0.5, 1, 2, 4, 8, 10, 20 milliseconds
  • Preamplifier gain : 0dB to 36 dB in 6 dB steps
  • Anti-alias filter : 206.5 Hz @ 2ms (82.6% of Nyquist)
    Selectable - Linear Phase or Minimum Phase
  • DC blocking filter : 1Hz to 10Hz, 1Hz increments or DC Removed
  • Operating temperature : -40°C ~ +70°C
  • Waterproof : IP68
  • GNSS mode : Support GPS, BEIDOU, GLONASS, single or double mode operation
  • Charging Temperature Range : +3°C ~ +45°C
Channel Performance
  • Maximum Input Signal : ±2.5Vpeak @ Gain 0dB
  • Equivalent Input Noise : 0.18μV @ 2ms Gain 18dB
  • Total Harmonic Distortion : <0.0002% @ Gain 0dB
  • Common Mode Rejection : ≥100dB
  • Gain Accuracy : <1%
  • GPS Time Standard : 1ppm
  • Timing Accuracy : ±10μs, GPS Disciplined
  • Cross Feed : < -110dB
  • System Dynamic Range : 145dB
  • Frequency Response : 0 ~ 1652Hz
  • Wireless Communication : Bluetooth Low Energy
  • Remark : All parameters are specified at 2ms sample interval, 31.25 Hz, 25°C, unless otherwise indicated
4G IoT Frequency Band
  • Performance : LTE CAT4 3GPP R11(Type 4: 150Mbps Upper peak/50Mbps Lower peak)
  • Frequency band : LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B25/B26/B28
    LTE-TDD: B38/B39/B40/B41
    UMTS: B1/B2/B4/B5/B6/B8/B19
    GSM: B2/B3/B5/B8