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WeighPod - Load Cell Digitiser
  load cell digitiser pcb digitiser housing, click to see more pics    
 

The WeighPod Mk1 is a high speed load cell amplifier / signal conditioner with digital output.

  • All weight indicator functions available
  • Weight values ready for display
  • Power supply 12 - 24 V dc
  • Excitation 10 V dc
  • Drive for 1 - 4 Load Cells with 350 ohm bridge
  • 6.25 - 960 conversions / second
  • Selectable Analog and Digital Filtering
  • 24 bit Internal resolution
  • Outputs RS232, RS422/485, CAN Bus. Baud rates selectable.
  • Multidrop Communications up to 32 devices (RS485), 99 devices (CAN Bus)
  • Address Rotary switch selectable 0-99
  • Approved EN45501 to 6000 divisions
  • Optional metal case to IP67
 
 
  Specification:    
  Power supply   12V - 24V DC
  Maximum readout   +/- 99999
  Measurement   6-wire sense system for 1 - 4 load cells, 350 Ohm
  Sample rates/second  50Hz 6.25, 12.5, 25, 50, 100, 200, 400, 800
     60Hz 7.5, 15, 30, 60, 120, 240, 480, 960
  Resolution   +/- 130000 or +/- 260000 bits
  Excitation voltage   10V DC (+/- 5V)
  Wiring   Full Wheatstone bridge with sense
  Sensitivity   2mV/V. Other values on request
  Dead load   Full digital offset
  Temperature range   Operating: -10 to +40 °C. Storage: -25 to +80 °C
  Linearity error   0.003% FS max.
  Span stability   2.7ppm/°C
  Zero stability   100nV/°C
  RFI protection   Signal, excitation and sense lines protected by feed-through capacitors
  Polarity   Bipolar
  Input overload   All loadcell inputs will withstand connection to excitation voltages
  Analogue filter   24dB/octave (80dB/decade). 4 cut-off frequencies DIL switch selectable: 1.3Hz, 2Hz, 3Hz, 5Hz
  Digital Filter   Selectable IIR or FIR. Butterworth, Gaussian, Bessel. 1 - 14Hz
  Calibration   Software calibration and set-up
  Communication   RS232, RS422 / RS485, CAN bus
  Baud rates   DIL switch selectable: 1200, 2400, 4800, 9600, 19200, 57600, 115200
  Approval (NWML)   EN45501 6000 divisions, 1uV/VSI
  Bus   RS485 up to 32 devices, CAN up to 99 devices
  Housing (optional)   Alochrome aluminium 130 x 57 x 28mm to IP67. DIN rail mountable
       
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