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Model 187 & 189
Users Manual
ii
Selecting the Range....................................................................................................... 2-10
Understanding the Display............................................................................................. 2-10
Primary Display ......................................................................................................... 2-10
Secondary Display..................................................................................................... 2-11
Bar Graph.................................................................................................................. 2-11
Using the Input Terminals .............................................................................................. 2-17
Using Display Hold......................................................................................................... 2-18
Using AutoHOLD............................................................................................................ 2-19
Using MIN MAX.............................................................................................................. 2-19
Using FAST MN MX....................................................................................................... 2-21
Using HOLD with MIN MAX or FAST MN MX............................................................ 2-22
Using Relative Mode (REL)............................................................................................ 2-22
3 Making Measurements................................................................................................. 3-1
Introduction ....................................................................................................................3-1
Measuring Voltage ......................................................................................................... 3-1
Measuring AC Voltage............................................................................................... 3-2
dB Measurements in AC Volts Functions.................................................................. 3-3
Measuring DC Voltage .............................................................................................. 3-4
Both AC and DC Voltage Measurements.................................................................. 3-4
Measuring Resistance.................................................................................................... 3-6
Testing for Continuity ..................................................................................................... 3-8
Using Conductance for High Resistance Tests.............................................................. 3-9
Measuring Capacitance.................................................................................................. 3-12
Testing Diodes ............................................................................................................... 3-13
Measuring Temperature................................................................................................. 3-15
Measuring Current ......................................................................................................... 3-16
Input Alert™ Feature................................................................................................. 3-17