Electronics International MVP-50T - Manual (Page 55)

Volts:
Measured on pin 35 of the EDC Top Connector.
Range: 0 to 40 volts.
Sensitivity: 6400 counts per volt.
Note: A VI-221 or FM-VA-MVP-xx may be used to measure Voltage on any temperature channel.
Amps:
Differential Input: + 2.5V to -.2V
Common Mode: +/- 90 Volt to ground
Sensitivity: 9.537uV per count.
Note: An FM-VA-MVP-xx module may be used to measure Voltage and Amps on any two temp
channels.
Fuel Flow:
Input Trigger: 2.5 Volt with over voltage protection.
Input Configuration: 5.11K Ohm pull-up to +5 Volts
Operating Range: 0 to 8.3 KHz.
Sensitivity: One count per pulse measure over a 0.356 second period.
Notes:
* +10 Volts are provided from the EDC to energize the flow transducer.
* An FFDM-1-MVP module may be used to accommodate fuel return from
a pressure carburetor.
* A FM-Flow-P module may be used to measure flow from a pulsed injector.
RPM (EDC-33P):
Two RPM channels are available. May be configured for digital or mag pickup. Also, may be set up to
operate from one or two inputs. Selectable jumpers and different EDC models accommodate 2, 4, 6, 8,
etc. cylinder engines. Inputs are over voltage protected. Mag Out feature provided.
Input Trigger: +3V / -1V
Input Impedance: 2.06K with 1 volt pull up.
Max RPM (EDC-33P-4/6): 4500, see appendix for information on high RPM EDC units.
Sensitivity (EDC-33P-4/6): 20 counts per RPM
Notes: A 79K isolation resistor (supplied in the kit) must be put in series with the input when measuring
signal from mags.
RPM (EDC-33T):
Two RPM channels are available to measure N1, N2, Ng, Nh, Hp, Hl or other turboprop RPM func-
tions. The “Engine Data, Ports, Timers, etc. Setup” screen provides data to calibrate these RPM values
for a given tach generator output.
Input Trigger: +.39V / 0V (Hysteresis)
Input Impedance: 20K ohms
Max RPM: 125 Hz.
Sensitivity: 772.52 sensor counts per Hz.