Fluke 12 Bedienungsanleitung

PN 2063508

January2003Rev.1, 9/04

All product names are trademarks of their respective companies.

Multimeter

Users Manual

Table of Contents

Title Page

READ FIRST: SAFETY INFORMATION .................................................... 1

SYMBOLS .................................................................................................. 2

DISPLAY .................................................................................................... 3

OPERATING FEATURES .......................................................................... 4

STANDBY MODE ....................................................................................... 5

INPUT RANGES......................................................................................... 5

Autoranging............................................................................................. 6

Manually Selecting a Range.................................................................... 6

MEASURING VOLTAGE ............................................................................ 7

TESTING CONTINUITY AND MEASURING RESISTANCE ...................... 9

TESTING DIODES ..................................................................................... 11

VCHEK AND HOW TO USE IT................................................................... 13

DISABLING iWITH FUNCTION LOCK ............................................. 14

MEASURING CAPACITANCE.................................................................... 15

USING MIN MAX FUNCTIONS .................................................................. 17

Recording Minimum and Maximum Readings......................................... 17

12 Multimeter

Users Manual

Recording Minimum and Maximum Reading with Elapsed Time............. 19

Capturing Continuity Intermittents with Continuity Capture.................. 21

TURNING BEEPER OFF............................................................................ 23

MAINTENANCE.......................................................................................... 23

NReplacing the Battery........................................................................ 23

Replacing the Test Leads........................................................................ 23

Service and Parts.................................................................................... 24

Accessories............................................................................................. 24

SPECIFICATIONS ...................................................................................... 24

READ FIRST: SAFETY INFORMATION

This meter has been designed and tested in accordance with IEC Publication 1010. To

ensure that the meter is used safely, follow all safety and operating instructions in this

manual. If the meter is not used as described in this manual, the safety features of the

meter might be impaired.

WWarning

To avoid false readings, which could lead to possible electric shock or personal

injury, replace the battery as soon as the battery indicator (N) appears.

•Do not use the meter if the meter or test leads look damaged, or if you suspect

that the meter is not operating properly.

•Turn off power to the circuit under test before cutting, unsoldering, or breaking the

circuit. Small amounts of current can be dangerous.

•Do not apply more than 600 V rms between a terminal and earth ground.

•Use caution when working above 60 V dc or 30 V ac rms. Such voltages pose a

shock hazard.

•When using the probes, keep your fingers behind the finger guards on the probes.

•Disconnect the live test lead before disconnecting the common test lead.

12 Multimeter

Users Manual

SYMBOLS

The following international electrical symbols are used in this manual:

W Important Safety Information in Manual

∅Not Applicable to Identified Model

BAC

FDC

GDiode

ECapacitor

JGround

TDouble Insulation

12 Multimeter

DISPLAY

Figure 1. Display

12 Multimeter

Users Manual

OPERATING FEATURES

Figure 2. Operating Features

12 Multimeter

STANDBY MODE

In standby mode, the display goes blank to preserve battery life. The meter beeps and

enters Standby if it is ON but inactive for more than 45 minutes. Press any pushbutton

to resume operation. Standby is not allowed if the meter is in the MIN MAX mode.

INPUT RANGES

The input range determines the highest value the meter will measure. Most functions

have more than one range (see SPECIFICATIONS). If the range is too low, the display

shows OL (overload). If the range is too high, the display will show fewer digits of

resolution.

12 Multimeter

Users Manual

Autoranging

The meter defaults to autorange when you turn it on. In autorange, the meter selects

the range automatically.

Manually Selecting a Range

The meter also has a manual range mode. In manual range, you select and lock the

meter in a range. To manually select a range:

1. Press [V]. The meter is locked in the range it is in, and Vis displayed. In manual

range, iis disabled.

2. Press [V] to step through the ranges. NOTE: The 4000 mV range, which can only

be entered in manual range, is convenient when using accessories.

3. To return to autorange, press [V] for 2 seconds (until Vis no longer displayed), or

change the measurement function.

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