Fluke 112 User Manual

i
Table of Contents
Title Page
Read Before Using the Meter: Warnings and Precautions .................................................... ii
Contacting Fluke ................................................................................................................... 1
"Warning" and "Caution" Statements..................................................................................... 1
Unsafe Voltage...................................................................................................................... 1
Test Lead Alert...................................................................................................................... 1
Battery Saver ("Sleep Mode")................................................................................................ 2
Terminals .............................................................................................................................. 2
Rotary Switch Positions......................................................................................................... 2
Display .................................................................................................................................. 3
MIN MAX AVG Recording Mode ........................................................................................... 4
Display HOLD ....................................................................................................................... 4
Backlight (Model 112 Only) ................................................................................................... 4
Manual Ranging and Auto Ranging....................................................................................... 5
Power-Up Options ................................................................................................................. 5
Making Basic Measurements ................................................................................................ 6
Measuring AC and DC Voltage ........................................................................................ 6
Understanding AC Zero Input Behavior of True RMS Meters ........................................... 6
AC current: below 5% of 60 mA AC, or 3 mA AC ............................................................. 6
Measuring Resistance...................................................................................................... 7
Measuring Capacitance.................................................................................................... 7
Testing for Continuity ....................................................................................................... 8
Testing Diodes ................................................................................................................. 8
Measuring AC or DC Current (Models 111 and 112) ........................................................ 9
Measuring Frequency....................................................................................................... 9
Using the Bar Graph.............................................................................................................. 10
Cleaning................................................................................................................................ 10
Testing the Fuse (Models 111 and 112) ................................................................................ 11
Replacing the Battery and Fuse ............................................................................................ 11
Specifications........................................................................................................................ 12

Fluke 112 Specifications

General

Category	Multimeter
Continuity	Yes
Diode Test	Yes
Display	Digital
DC Voltage Ranges	400.0 mV, 4.000 V, 40.00 V, 400.0 V, 600 V
Resistance Ranges	400.0 Ω, 4.000 kΩ, 40.00 kΩ, 400.0 kΩ, 4.000 MΩ, 40.00 MΩ
Safety Category	CAT III 600 V
AC Voltage Accuracy	±(1.0% + 3)
Battery Type	9 V
DC Voltage Accuracy	±(0.5% + 2 counts)
AC Voltage Ranges	4.000 V, 40.00 V, 400.0 V, 600 V