Franz was kind enough to send me some info, but there are still holes. I've attached one of my CSV files, with the headers that I understand.
- 05062021.zip
- Sample data log CSV
- (184.32 KiB) Downloaded 352 times
Basically I see the data laid out as follows:
Date, Time, Hobbs (in hours), Maintenance Timer Remaining (in hours), Volts, RPM1, RPM1%, RPM2, RPM2%, Analog 1, Analog 2, Analog 3, Analog 4, Manifold Pressure (mBar), Current (Amp), CJC (C), TC1 (C), TC2, TC3, TC4, TC5, TC6, TC7, TC8, TC9, TC10, TC11, TC12, Fuel Flow 1 (liters / hr), Fuel Flow 2, Fuel Level 1 (liters), Fuel Level 2, Fuel Pressure (psi), OAT (C), LAT, LONG, SOG (MPH), COG, Altitude (Feet)
There's a lot here, but it's not all accurate or complete:
Date, Time, Hobbs, Maintenance, Volts and RPM - Straight forward and they seem to be correct.
RPM % - Huh? Where is it calculating these from? It's saying that 2,500RPM is 42% ?!? 2500/.42 = 5,952. Nowhere in the system have I put in a RPM of 5,952 as a limit.
Analog 1 - 4. I'm betting that Analog 1 & 2 are Oil Pressure and Temperature, but I'm not sure what the units represent. Analog 1 I believe is in Celcius, the numbers seem to match with what I'm seeing, but Analog 2 is showing 400-800. If that's some kind of pressure measurement I cannot figure out what it is so I can convert it to PSI.
Manifold Pressure in mBar - OK, that looks rights
Current in Amps - yup, that seems OK too.
CJC - Cold Junction Temperature - What is it, and why do we care about having it logged?
TC1-12 - My engine is a Lycoming O-320 so TC1-4 are EGT and 5-8 are CHT. 9-12 are unused but seem to constantly report values ranging from 20 - 60. Nothing is attached to those terminals.
Fuel Flow - liters per hour. I'm still adjusting the K-factor on the FT-60, but seems right to what I've seen so far. FF2 is unused
Fuel Levels in liters. Nope! Not even close. It says I have 352 liters (93 gallons) in my 10 gallon header tank and 1,067 liters (282 gallons) in my 30 gallon wing tank.
Fuel Pressure - currently unused in my install
OAT in Celcius - OK. That looks like Arizona temperatures.
Latitude and Longitude - straight from the GPS so it's OK.
SOG in MPH - also from the GPS, looks right
COG - is it True or Magnetic?
Altitude in Feet - also from the GPS, seems correct.
Apart from the issues listed above, why are some units metric and some in imperial?
Thank you all for your help.
Joe