Rotec R-3600 tach wiring

[Belly3870]

Has anyone installed a skyview with a Rotec R-3600?  If so how did you wire the tach readings?  Did you just hook up the tach output wire on the electronic ignition modul to the tach input on the EMS?
Also does anyone have the physical dimentions of the amp shunt?

Thanks,
Brian

www.facebook.com/radialconversions

 

[ned]

Amp shunt dimension L 5.25"  W 1.15"  H 1.4"
I am considering one from B&C L 2.0"  W 1.3"  H unknown.
The problem is the B&C is 50mv and the Dynon is 60mv.
Does anyone know of a parameter that can be adjusted to allow usage of 50mv, or some method to work around this issue? I have installed a GRT CS-01 for alternator 1.

 

[dynonsupport]

What matters is that it is 60mv/60A, which means 1mV per A.

I bet the one you are looking at is 50mV/50A, which is the same and needs no adjustments.

 

[ned]

What matters is that it is 60mv/60A, which means 1mV per A.

I bet the one you are looking at is 50mV/50A, which is the same and needs no adjustments.

The shunts are 50mv in sizes of 20 30 40 50 60 80 100 amp all are 50mv. Question again, is there a parameter that can be adjusted to compensate for variation?

 

[dynonsupport]

There is no adjustment inside the SkyView user interface that can adjust this.

If you are willing to do some text file editing, you can edit your sensor.sfg file. Instructions are here:
http://wiki.dynonavionics.com/Making_your_own_sensor_definitions

In that file, you will see a section:

sensor={
      id=AMMETER SHUNT (100412-000)
      function=AMPS
      pins=C37_P24/25
      name=BATT
      name=ALT
      name=LOAD
      min_val=-100
      max_val=100
      resolution=0
      round=1
      is_piecewise=0
      low_coeff={
            c_x4=0
            c_x3=0
            c_x2=0
            c_x1=1000
            c_x0=0
            }
      low_resistance=PULL_UP_200
      low2high_cross=0
      high_coeff={
            c_x4=0
            c_x3=0
            c_x2=0
            c_x1=0
            c_x0=0
            }
      high_resistance=NONE
      high2low_cross=0
      shift=5
      }

The "c_x1=1000" is what sets it to be 1A per mV. It takes the reading in volts multiplies it by this to give you amps. So 0.001V (1mV) * 1,000 = 1A

So if you have a shunt that is 0.5mV per amp, you would set this to 2000 (0.0005 * 2000 = 1) and if you had a shunt that was 2mV per A you would set this to 500.

 

[ned]

Much thanks Dynon. This info is just what I need.