Fluke 88 V - Measuring Pulse Width on a Port Fuel Injector

Model 88 V
Users Manual
42
Measuring Pulse Width on a Port Fuel Injector
In Pulse Width (and Duty Cycle), the meter defaults to (-)
trigger slope; (time signal is low). Press E
(± TRIGGER) to toggle between (±) trigger slopes. The
slope is indicated by the + or - sign next to “Trig” in the
lower-left corner of the display.
To measure pulse width on most port fuel injectors:
1. Insert test leads in the input terminals shown in
Figure 12.
2. Set the rotary switch to
L.
3. Connect the test leads as shown.
4. Press G three times to select Pulse Width. The
display shows ms.
5. Start the engine. Read the display.