Fluke ScopeMeter 125 Manual de usuario

Fluke 125

Industrial ScopeMeter

Getting Started

Dec 2006

All product names are trademarks of their respective companies.

Contents of the Fluke 125 Test Tool Kit

(2x)

(3x)

Figure 1. Fluke 125 Test Tool Kit

Getting Started

Introduction

This Getting Started Manual provides basic information

on the Fluke 125 ScopeMeter Test Tool. For complete

operating instructions, refer to the Users Manual on the

accompanying CD-ROM

Contacting a Service Center

To locate a Fluke authorized service center, visit us on

the World Wide Web at: www.fluke.com

or call Fluke using any of the phone numbers listed

below:

+1-888-993-5853 in the U.S.A and Canada

+31-40-2675200 in Europe

+1-425-446-5500 from other countries.

Safety Information: Read First

The Fluke 125 ScopeMeter Test Tool (hereafter referred

to as “Test Tool”) complies with:

•ANSI/ISA-82.02.01

•EN/IEC 61010-1: 2001 600 V Measurement

Category III, Pollution Degree 2

•CAN/CSA-C22.2 No.61010-1-04 (including

CCSAUS approval)

Use the Test Tool only as specified in the Users Manual.

Otherwise, the protection provided by the Test Tool might

be impaired.

A Warning identifies conditions and actions that pose

hazard(s) to the user. A Caution identifies conditions and

actions that may damage the Test Tool.

Fluke 125

Getting Started

Warning

To avoid electrical shock or fire:

•Use only the power supply, Model PM8907

(Battery Charger / Power Adapter).

•Before use check that the selected/indicated

voltage range on the PM8907 matches the

local line power voltage and frequency.

•For the PM8907/808 universal Battery

Charger/Power Adapter use only line cords

that comply with the local safety regulations.

Note

To accommodate connection to various line power

sockets, the PM8907/808 universal Battery Charger /

Power Adapter is equipped with a male plug that must

be connected to a line cord appropriate for local use.

Since the adapter is isolated, the line cord does not

need to be equipped with a terminal for connection to

protective ground. Since line cords with a protective

grounding terminal are more commonly available you

might consider using these anyhow.

The 230V rating of the PM8907/808 is not for use in

North America. A line plug adapter complying with the

applicable National Requirements may be provided to

alter the blade configurations for a specific country.

Warning

To avoid electrical shock or fire if a Test Tool

input is connected to more than 42 V peak (30

Vrms) or on circuits of more than 4800 VA:

•Use only insulated voltage probes, test leads

and adapters supplied with the Test Tool, or

indicated as suitable for the Fluke 125 Test

Tool.

•Before use, inspect voltage probes, test leads

and accessories for mechanical damage and

replace when damaged.

•Remove all probes, test leads and

accessories that are not in use.

•Always connect the battery charger first to

the ac outlet before connecting it to the Test

Tool.

•Do not apply input voltages above the rating

of the instrument. Use caution when using 1:1

test leads because the probe tip voltage will

be directly transmitted to the Test Tool.

•Do not use exposed metal BNC or banana

plug connectors.

•Do not insert metal objects into connectors.

•Always use the Test Tool only in the manner

specified.

Getting Started

Preparing for Use

Max. Input Voltages

Input A and B directly ...............................600 V CAT III

Input A and B via BB120 ..........................300 V CAT III

Input A and B via STL120.........................600 V CAT III

Max. Floating Voltage

From any terminal to ground ....................600 V CAT III

Voltage ratings are given as “working voltage”. They

should be read as Vac-rms (50-60 Hz) for AC sine

wave applications and as Vdc for DC applications.

Measurement Category III refers to distribution level and

fixed installation circuits inside a building.

The isolated input connectors have no exposed metal and

are fully insulated to protect against electrical shock.

If Safety Features are Impaired

Use of the Test Tool in a manner not specified may

impair the protection provided by the equipment.

Before use, inspect the test leads for mechanical damage

and replace damaged test leads!

Whenever it is likely that safety has been impaired, the

Test Tool must be turned off and disconnected from the

line power. The matter should then be referred to qualified

personnel. Safety is likely to be impaired if, for example,

the Test Tool fails to perform the intended measurements

or shows visible damage.

Preparing for Use

At delivery, the installed rechargeable batteries may be

empty. To reach full charge they must be charged for 7

hours with the Test Tool turned off:

•use only the supplied Battery Charger/Power Adapter

model PM8907

•before use check that the PM8907 voltage and

frequency range match the local line power range

•connect the battery charger to the ac outlet

•connect the battery charger to the POWER ADAPTER

input on the right-hand side of the Test Tool.

Caution

To prevent decrease of the battery capacity,

you must charge the batteries at least once a

year.

Fluke 125

Getting Started

Powering/Resetting the Test Tool

Turning power on/off:

The Test Tool powers up in its last

setup configuration.

Resetting the Test Tool to the factory (default) settings:

+ Turn power off, then press and hold the

Backlight key and turn on again. You

should hear a double beep.

Changing Backlight and Contrast

To save battery power, the screen can be set to an

economic brightness display when operated on the battery

pack (with no power adapter connected).

Note

Using dimmed display lengthens maximum

battery power operation time.

To change the brightness and contrast:

Open the LIGHT/CONTRAST button

bar.

Press LIGHT.

Dim / Brighten the backlight.

Press CONTRAST.

Adjust the Contrast of the display.

Reading the Screen

The screen is divided into three areas that are indicated in

Figure 2. The areas are:

Reading area (A):Displays the numeric readings. If

only input A is on, you will see the input A readings only. If

input B is on you will also see the input B readings.

Waveform area (B): Displays the Input A(B) waveform.

The trace identifier (A) is visible on the left of the

waveform. The zero icon (-) identifies the ground level of

the waveform. The bottom line displays the ranges / div

and the power indicator (line or battery).

Note:

When battery powered, the battery indicator

informs you about the condition of the battery

from full to empty:

Getting Started

Making Menu Selections

Menu area (C): Displays the menu that provides choices

available through the blue arrow keys and the ENTER key:

Figure 2. The Screen Area's

Making Menu Selections

Selection of a function in the menu is done as follows:

A menu pops up after operation of, for

instance, the MENU key.

Use the arrow keys to highlight for

example the SCOPE/METER mode.

Press ENTER to confirm the selection.

The input A measurements menu pops up.

Use the arrow keys to highlight the desired

measurement function.

Press ENTER to confirm the selection.

Fluke 125

Getting Started

Input Connections and Grounding

For Voltage measurements use the Shielded Test Leads

on Input A (red) and/or Input B (grey).

For Current measurements use a current probe on Input

A and/or Input B.

For Power measurements use a voltage probe on Input A

and a current probe on Input B.

For Temperature measurements use a 1 mV/°C or

1 mV/°F temperature probe (optional) on Input A and/or

Input B.

For OHMΩ, CONTinuity, DIODE, and CAPacitance

measurements (Meter mode) use the Red Shielded Test

Lead at Input A and the Long Black Ground Lead at Input

COM (Common).

For low frequency measurements and high signal

levels, use the Black COM (Common) Input as single

ground. Figure 3 shows this.

For measurements at higher frequencies up to 10 MHz

or low levels, use both Shielded Test Leads with Short

Ground Leads instead of using the COM Input.

For measurements at frequencies above 10 MHz use the

VP40 10:1 probe with a short ground lead.

Bear in mind that the Short Ground Leads must be

connected to the same potential! Refer to Figure 4.

Figure 3. Grounding with Unshielded Ground Lead.

Figure 4. Grounding with Short Ground Leads

Warning

To avoid electrical shock or fire, use only one

COM (common) connection , or ensure that

all connections to COM are at the same

potential.

Getting Started

Displaying an Unknown Signal with Connect-and-View™ (Auto Set)

Displaying an Unknown Signal with

Connect-and-View™ (Auto Set)

The Connect-and-View™ function enables hands-off

operation to display complex unknown signals in

SCOPE/METER mode. This function optimizes the

position, range, time base, and triggering and assures a

stable display on nearly all waveforms. If the signal

changes, the setup will track these changes.

To enable the Connect-and-View™ function, do the

following:

•Connect the red test lead from red Input A to the

unknown signal to be measured

Perform an Auto Set.

Certain details of the waveform can be made visible by

manually changing amplitude, time base, waveform

position, and triggering. How to do that is explained in the

course of this Guide.

Freezing the Screen

You can freeze the screen (Waveforms and Readings)

with the HOLD/RUN key. This allows you read the screen

while the Test Tool has been disconnected from the

Device to be checked.

Freeze the screen. HOLD appears in

the bottom of the reading screen.

Start the measurement again.

Scope/Meter Measurements

Make the input connections as described on page 6.

Selecting the SCOPE/METER mode

Open the application mode menu.

Highlight SCOPE/METER

Enter the SCOPE/METER mode.

Fluke 125

Getting Started

Scope Measurements on Input A and B

Choose ac voltage (Vac) measurement for Input A:

Open the A MEASUREMENTS menu.

Highlight Vac.

Press ENTER to confirm the selection.

Observe that Vac (rms V∼) is now the Main Reading. The

former Main Reading has now moved to the smaller

Secondary Reading Position. Figure 5 shows this.

Then choose Peak-to-Peak Reading for Input B:

Open the B MEASUREMENTS menu.

Highlight ON.

Turn INPUT B on.

Highlight PEAK ... .

Open the PEAK Submenu.

Highlight PEAK-PEAK.

Press ENTER to confirm the selection.

Now you will see a screen like in Figure 5. The A and B

traces give a graphical representation of the waveforms

applied to Input A and Input B.

Figure 5. Measurements on Input A and Input B

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