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DPR-50 voltage reading inaccurate??

Old 10-02-2006, 02:12 AM
  #1  
trivejb
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Default DPR-50 voltage reading inaccurate??

I was using my DPR-50 to monitor in real time the charging of a 3S 2200mah LIPO. The voltage that it showed was .2 lower that what my DVM and AVM showed. I am using a Hobbico MKll with a LBA6 connected to the charge harness. The DPR was connected to the discharge leads of the battery. As an example the DPR would read 11.73v and the DVM reading at the same terminals would be 11.94v. Since my DVM and AVM agree It appears that the DPR is reading low. Placing the battery in a plane with the DPR installed it recorded a starting voltage of 11.99 while the DVM recorded 12.35. Other tests have showed the same results. I first noticed this when I used it to record a flight on a battery that was at 12.33 volts when installed but only showed 11.99v when recorded by the DPR-50.
Has anyone experenced this same problem? Any suggestions?
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Old 10-05-2006, 02:41 PM
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Matt Kirsch
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If you haven't already, consult with the manufacturer. This may be an improperly calibrated unit, or there may be a known issue.
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