Fluke 88 V User Manual page 3

Model 88 V
Users Manual
Measuring Duty Cycle .................................................................................................. 29
Measuring Pulse Width................................................................................................. 30
Bar Graph .......................................................................................................................... 30
Zoom Mode (Power Up Option Only)........................................................................... 30
Uses for the Zoom Mode .............................................................................................. 31
HiRes Mode ....................................................................................................................... 31
MIN MAX Recording Mode ............................................................................................... 31
Smooth Feature (Power Up Option Only)......................................................................... 32
AutoHOLD Mode ............................................................................................................... 34
Relative Mode.................................................................................................................... 34
Using the Meter for Automotive Applications.................................................................... 34
Measuring RPM ............................................................................................................ 35
Testing MAP or BP/MAP Sensors with Frequency Output ......................................... 38
Measuring Internal Resistance of an Ignition Coil ....................................................... 40
Measuring Pulse Width on a Port Fuel Injector ........................................................... 42
Testing Ripple Voltage on an Alternator ...................................................................... 44
Measuring Voltages on a Typical Oxygen Sensor ...................................................... 46
Measuring Starter Circuit Voltage Drop ....................................................................... 48
Testing the Throttle Position Sensor Voltage .............................................................. 50
Testing the Throttle Position Sensor Resistance ........................................................ 50
Isolating a Circuit Causing a Current Drain ................................................................. 52
Measuring System Voltage .......................................................................................... 54
Testing for Continuity in a Switch................................................................................. 56
Maintenance ...................................................................................................................... 58
General Maintenance ................................................................................................... 58
Testing the Fuse ........................................................................................................... 58
Replacing the Battery ................................................................................................... 59
Replacing the Fuses ..................................................................................................... 60
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