Testing Current
Use this menu option to test current with a current probe. (optional accessory)
Don’t forget to set the Current Probe to zero before using it for measurements.
Testing Temperature
Use this menu option to test temperature with a temperature probe. (optional accessory)
5.4 DUAL INPUT SCOPE OPERATION
Dual Input Scope
Use the scope function if you want to simultaneously measure two waveforms - one on INPUT A and the other on
INPUT B.
Using Single and Dual Input Scope
Use SINGLE INPUT SCOPE if you want to use a single signal, INPUT B is turned off.
Use DUAL INPUT SCOPE if you want to simultaneously measure two signals.
5.5 CHANGING THE VEHICLE DATA & INSTRUMENT SETUP
There are two groups of setups in the Main Menu.
VEHICLE DATA : Use this menu option to enter the correct vehicle data, such as the number of cylinders or cycles
on the vehicle under test.
5-13
SINGLE cylinder waveform
Testing Injector Peak Volts and On Time
Testing Dwell
The test is done with the shielded test lead on INPUT A connected to the primary side of the ignition coil.
5-12
SPARK VOLTAGE
BURN VOLTAGE
BURN TIME
GRAPHING MULTIMETER
INJECTOR PEAK VOLTS
INJECTOR ON TIME
PEAK VOLTS
INJECTION PULSE WIDTH (ON TIME)
MENU ( )
P ress to se le ct between re adings in %,
degrees ( ) crankshaft rotation, or in ms.
P ress to se lec t b et wee n
measuring degrees Celsius
and degrees Fahrenheit.
Press to measure AC+DC
true rms current.
Press to select between
10 mV/A, and 100 mV/A.
Press to measure DC current.
P re ss to me a su re
AC true rms current.
GMM AMPERES
RANGE REPEAT
DC
AC AC+DC
10 mV/A
TEST
GMM TEMPERATURE
REPEAT
C
F
TEST
GMM INJECTOR PEAK VOLTS
TEST RESET
GMM DWELL
VEHICLE DWELL MAX/MIN
DATA
RESET
%
GMM INJECTOR ON TIME
REPEAT MAX/MIN
TEST RESET
REPEAT MAX/MIN
