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PDL/CDi History Version 1.0: PDL1 to PDL4 Datalogger
PDL/CDi History Version 1.0: PDL5
PDL/CDi History Version 1.0: CDi2/PDL6, the PDL that Wasn't
CDi2.P6
PDL/CDi History Version 1.0:
PDL/CDi History Version 1.0: Pembina Lake Erie Datalogger
PDL/CDi History Version 1.0: P5 Switcher
PDL/CDi History Version 1.0: P7 Switcher
PDL/CDi History Version 2.0

PDL/CDi History Version 1.0: ZDL5 Switcher
Zzzz...
PDL/CDi History Version 1.0: CDi3.FTe Switcher
PDL/CDi History Version 1.0: CDi3.RMe Switcher
PDL/CDi History Version 1.0: Remote 900 MHz RF Link
PDL/CDi History Version 1.0: CDi99 Libby Flow Meter
PDL/CDi History Version 1.0: CDi2.P6, the PDL that Wasn't
CDi2.P6 Prototype
  • Newer hardware platform based on the Zilog s180 meant to eventually replace its PDL divine predecessors.
  • Development started early in 2000, on Adam's own time... had to sell a million beers to support the R&D, really, really, and continued strongly until 2004 or so. It was never implemented as a CDi/PDL in the lake because the pressure transducer/transmitter technology of the day didn't deserve it. Adjust this, calibrate that, why bother? Some consideration was given to the HART bandwaggon but no benefit to the lake operation was identified.
  • So little CDi2.P6 was put on the back burner, until the Keller discovery. It has since become the CDi3.P7, all-digital Lake Erie workhorse.

    PDL/CDi History Version 2.0: CDi2.P6
Summer 2000. CDi2.P6 memory board
Summer 2000. CDi2.P6 memory board
July 2002. CDi2.P6 prototype
July 2002. CDi2.P6 prototype
July 2002. CDi2.P6 prototype
July 2002. CDi2.P6 prototype being tested on the Andrea Marie
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