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Isolated Strain Gauge Type Loadcell Input Board (High Gain)

ISO-LDH/S (with DN-25 daughter board)

Isolated Strain Gauge Type Loadcell Input Board (High Gain)

  Price:  $979.00  

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The ISO-LD series is a bus-type isolated loadcell input board. The isolation inputs can operate with up to 500Vrms of common-mode voltage. The ISO-LD series features a 12-bit analog-to-digital converter, on board 1 K bytes FIFO buffer , one loadcell signal input channel, one analog input channel, 8-channel 12-24V isolated digital inputs, 7-channel isolated open-collector digital outputs, one programmable 8-bit LED indicator to indicate the magnitude of strain gauge input signal. The ISO-LD series board is suitable for static force measurement and dynamic force analysis. Because there are on board excitation voltage, high gain amplifier, you don*t have to buy any excitation voltage and signal conditioning module. In other words, it save your money and space. The board also have some special features, such as:

  1. 12-bit programmable offset voltage. Therefore the user can cancel the DC bias and amplify the AC signal
  2. The isolated structure eliminate the ground loop noise and protect your computer.
  3. On board FIFO buffer support gap-free A/D conversion under DOS and Windows environment.
  4. Except the loadcell input channel, there are a lot digital I/O and one analog input channel .The user can implement a measurement and analysis system.
  • AT bus
  • 500 Vdc photo-isolation protection
  • one channel strain gauge input channel
  • Built-in 1K bytes FIFO
  • Excitation voltage for loadcell : 12V, 50mA
  • Maximum gain up to 40,000
  • Programmable 12-bit resolution ,DC offset voltage (0~5V)
  • Second order low pass filter build-in
  • Direct connection to strain gauge type loadcell
  • 8-channel 12-24V isolated digital input
  • 7-channel isolated open-collector digital output
  • Programmable 8-bit LED indicator.
  • Command set programming
  • Software
    • Toolkit for DOS
    • Toolkit for Windows 95/98
    • Toolkit for Windows NT
    • Toolkit for Windows 2000/XP
    • Toolkit for OCX 95/98
    • Toolkit for OCX NT
    • Toolkit for OCX 2000/XP
    • Toolkit for LINUX


Analog Input Specifications
  • Channels: 1 loadcell input channel & 1 analog input channel
  • Resolution: 12-bit
  • Sampling Rate: 20KS/s max
  • Nonlinearity: ±0.01%
  • Gain error: 0.005% of reading maximum
  • Input Impedance: 10,000MW||6pF
  • Bias current: ±2 nA (maximum)
  • Input offset current: ±2 nA (maximum)
  • CMRR: 90 dB (Minimum)
  • Recommended warm-up time: 10 minutes
  • Sample & hold: On chip

ISO-LDH Input Range

  • Analog input range: 0 ~ 10V, 0 ~ 1V, 0 ~ 0.1V, 0 ~ 0.01V
  • Strain Gauge input range: 0 ~ 37.5 mV
  • Resolution: 12-bit
  • Gain input range: 400 0 ~ 37.5 4,0000 ~ 15 40,000 0 ~ 12.75

ISO-LDL Input Range

  • Normal input range: 0 ~ 10V, 0 ~ 5V, 0 ~ 2.5V, 0 ~ 1.25V
  • Loadcell input range: 0 to 37.5 mV
  • Loadcell offset voltage adjustment: 0 ~ -5V, 8-bit
  • Gain input range(mV): 400 0 ~ 37.5 / 8,00 0 ~ 25 / 1,600 0 ~ 18.75 / 3,200 0 ~ 15.625
  • Loadcell offset voltage adjustment: 0 to 5V, 12 bit resolution

Digital I/O

  • Digital Input: 8 photo-isolated 12 ~ 24V
  • Digital Output: 7 isolated onpen-collector (100mA)
  • Output: 8TTL/LED


  • Operation Temp. 0°C to 50°C
  • Storage Temp: -20°C to 70°C
  • Humidity: 0-90%, non-condensing
  • Dimensions: 190cm x 122cm
  • Power Requirements: +5V @ 400mA max.

  • Strain gauge type loadcell measurement
  • Dynamic force on line monitoring system
  • Dynamic pressure measurement

References and Support

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