Fluke 12 Service Manual

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Table of Contents
Chapter Title Page
1 Introduction and Specifications ........................................................ 1-1
1-1. Introduction........................................................................................... 1-1
1-2. Specifications........................................................................................ 1-1
2 Theory of Operation ........................................................................... 2-1
2-1. Introduction........................................................................................... 2-3
2-2. Theory of Operation.............................................................................. 2-3
2-3. Analog Measurement IC (U1).......................................................... 2-3
2-4. Microcomputer IC (U2).................................................................... 2-3
2-5. VCHEK Input Resistance................................................................. 2-3
3 Maintenance........................................................................................ 3-1
3-1. Introduction........................................................................................... 3-3
3-2. Disassembly and Reassembly............................................................... 3-3
3-3. Cleaning................................................................................................ 3-7
3-4. Performance Tests................................................................................. 3-7
3-5. Calibration ............................................................................................ 3-8
4 Replaceable Parts and Schematics................................................... 4-1
4-1. Introduction........................................................................................... 4-3
4-2. How To Obtain Parts ............................................................................ 4-3
4-3. Schematics............................................................................................ 4-3
4-4. Warranty and Service Centers .............................................................. 4-4

Fluke 12 Specifications

General

Continuity Beeper	Yes
Diode Test	Yes
Safety Rating	CAT III 600 V
Operating Temperature	0 °C to 50 °C
Display Type	LCD
Voltage DC	600V
Voltage AC	600V
DC Current Range	10 A
AC Current Range	10 A
Resistance Range	40 MΩ
Battery Type	9V
Dimensions	169 mm x 84 mm x 44 mm