Fluke 175 Bedienungsanleitung

Models 175, 177, 179

True RMS Multimeters

Users Manual

May 2003 (English)

LifetimeLimited Warranty

EachFluke 20, 70, 80, 170and 180 Series DMM will be free from defects in material andworkmanship for its lifetime. As used herein, “life-

time” is defined as seven years afterFluke discontinues manufacturing theproduct, butthe warranty period shall beat least ten years from

the dateof purchase. This warranty does notcoverfuses, disposable batteries, damage from neglect, misuse, contamination, alteration,

accident or abnormal conditions of operationor handling, including failures caused by use outsideof the product’s specifications, or normal

wear and tear of mechanicalcomponents. This warranty coversthe original purchaser only and is nottransferable.

For ten years from thedate of purchase, this warranty alsocovers theLCD. Thereafter, for the lifetime of the DMM, Fluke will replace the

LCD for a fee based on then current component acquisition costs.

To establish original ownership andprove date of purchase, pleasecompleteand return the registrationcard accompanying the product, or

register your product on http://www.fluke.com. Flukewill, at its option, repair at no charge, replace orrefund thepurchase price of a defective

product purchased through a Flukeauthorizedsales outlet and atthe applicable international price. Fluke reservesthe right tocharge for

importationcosts of repair/replacement parts if the product purchasedin one countryis sentfor repair elsewhere.

Ifthe product is defective, contact your nearest Flukeauthorizedservice center to obtain return authorization information,then send the

productto thatservicecenter, with adescriptionof the difficulty, postageand insurance prepaid (FOB Destination). Fluke assumes no risk

for damage intransit. Flukewill pay return transportationfor product repaired or replaced in-warranty. Before making any non-warranty re-

pair, Fluke will estimatecost and obtain authorization,then invoice you forrepair and return transportation.

THIS WARRANTY IS YOUR ONLY REMEDY. NO OTHER WARRANTIES, SUCH AS FITNESS FOR APARTICULARPURPOSE, ARE

EXPRESSEDORIMPLIED.FLUKESHALL NOT BELIABLE FORANY SPECIAL, INDIRECT,INCIDENTALORCONSEQUENTIAL DAM-

AGES ORLOSSES,INCLUDINGLOSS OF DATA, ARISINGFROMANY CAUSEORTHEORY. AUTHORIZEDRESELLERS ARENOT

AUTHORIZED TO EXTEND ANY DIFFERENT WARRANTY ON FLUKE’S BEHALF. Sincesome states do not allowthe exclusion or limita-

tion of an impliedwarranty orof incidental or consequential damages, this limitation ofliability may not apply toyou. If any provisionof this

warranty is heldinvalid or unenforceable by acourt or other decision-maker ofcompetent jurisdiction, such holdingwill not affectthe validity

or enforceability of any other provision.

Fluke Corporation Fluke Europe B.V.

P.O. Box 9090 P.O. Box 1186

Everett, WA 98206-9090 5602 BD Eindhoven

U.S.A. The Netherlands

Visitthe Fluke website at: www.fluke.com

2/02

Table of Contents

Title Page

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 and AutoHOLD Modes................................................................................... 4

YELLOW Button.................................................................................................................... 4

Display Backlight (Model 177 and 179 Only)......................................................................... 4

Manual Ranging and Autoranging ......................................................................................... 5

Power-Up Options................................................................................................................. 5

Making Basic Measurements................................................................................................. 6

Measuring AC and DC Voltage......................................................................................... 6

Measuring Resistance...................................................................................................... 6

Measuring Capacitance.................................................................................................... 6

Testing for Continuity........................................................................................................ 7

Measuring Temperature (Model 179 Only)....................................................................... 7

Testing Diodes ................................................................................................................. 7

Measuring AC or DC Current ........................................................................................... 8

Understanding AC Zero Input Behavior of True RMS Meters........................................... 8

Measuring Frequency....................................................................................................... 9

Using the Bar Graph.............................................................................................................. 9

Cleaning................................................................................................................................10

Testing the Fuses.................................................................................................................. 10

Replacing the Battery and Fuses........................................................................................... 10

Specifications........................................................................................................................ 11

Warning. Read before using the Meter:

To avoid possible electrical shock or personal injury, follow these guidelines:

⇒Use the Meter only as specified in this manual or the protection provided by the Meter might be impaired.

⇒Do not use the Meter or test leads if they appear damaged, or if the Meter is not operating properly. If in doubt, have the

Meter serviced.

⇒Always use the proper terminals, switch position, and range for measurements.

⇒Verify the Meter’s operation by measuring a known voltage.

⇒Do not apply more than the rated voltage, as marked on the Meter, between the terminals or between any terminal and earth

ground.

⇒Use caution with voltages above 30 V ac rms, 42 V ac peak, or 60 V dc. These voltages pose a shock hazard.

⇒Replace the battery as soon as the low battery indicator ( b) appears.

⇒Disconnect circuit power and discharge all high-voltage capacitors before testing resistance, continuity, diodes, or

capacitance.

⇒Do not use the Meter around explosive gas or vapor.

⇒When using the test leads, keep your fingers behind the finger guards.

⇒Remove test leads from the Meter before opening the Meter case or battery door.

Symbols

BAC (Alternating Current) IFuse

FDC (Direct Current) Conforms to European Union directives

BDC/AC Canadian Standards Association

Earth ground TDouble insulated

Important Information; see manual Underwriters Laboratories, Inc.

Meter in accordance with IEC 61010-1. 54CJ

bBattery (Low battery when shown on

display.) ;

N10140 Conforms to relevant Australian standards

Inspected and licensed by TÜV

(Technischer Überwachungs Verein)

Product Services

VDE (Verband Deutscher Electroniker)

Models 175, 177 & 179

True RMS Multimeters

The Fluke Model 175, Model 177, and Model 179 are battery-

powered, true-RMS multimeters (hereafter "the Meter") with a

6000-count, 3 3/4-digit display and a bar graph. This manual

applies to all three models. All figures show the Model 179.

These meters meet CAT III and CAT IV IEC 61010 standards.

The IEC 61010 safety standard defines four overvoltage

categories (CAT I to IV) based on the magnitude of danger from

transient impulses. CAT III meters are designed to protect against

transients in fixed-equipment installations at the distribution level;

CAT IV meters are designed to protect against transients from the

primary supply level (overhead or underground utility service).

The Meter measures or tests the following:

♦AC / DC voltage & current ♦Diodes

♦Resistance ♦Continuity

♦Voltage & current frequency♦Capacitance

♦Temperature (Model 179 only)

Contacting Fluke

To contact Fluke, call:

1-888-993-5853 in USA

1-800-363-5853 in Canada

+31 402-678-200 in Europe

+81-3-3434-0181 in Japan

+65-738-5655 in Singapore

+1-425-446-5500 from anywhere in the world

Visit Fluke’s web site at: www.fluke.com

"Warning" and "Caution" Statements

A "

Warning" identifies hazardous conditions and actions

that could cause bodily harm or death.

A "Caution" identifies conditions and actions that could damage

the Meter, the equipment under test, or cause permanent loss of

data.

Unsafe Voltage

To alert you to the presence of a potentially hazardous voltage,

when the Meter detects a voltage ≥30 V or a voltage overload

(OL), the Ysymbol is displayed.

Test Lead Alert

To remind you to check that the test leads are in the correct

terminals, LEAd is momentarily displayed when you move the

rotary switch to orfromthe mAor Aposition.

Warning

Attempting to make a measurement with a test lead in

an incorrect terminal might blow a fuse, damage the

Meter, and cause serious personal injury.

Models 175, 177 & 179

Users Manual

Battery Saver ("Sleep Mode")

The Meter enters the "Sleep mode" and blanks the display if there

is no function change or button press for 20 minutes. To disable

the Sleep mode, hold down the YELLOW button while turning the

Meter on. The Sleep mode is always disabled in the MIN MAX

AVG mode and the AutoHOLD mode.

Terminals

FUSED

AIK01F.EPS

Item Description

1 Input terminal for AC and DC milliamp measurements

to 400 mA (600 mA overload for 2 minutes maximum)

and frequency measurements.

2 Input terminal for AC and DC current measurements to

10 A (20 A overload for 30 seconds maximum) and

frequency measurements.

3 Input terminal for voltage, continuity, resistance, diode,

capacitance, frequency, and temperature (Model 179

only) measurements.

4 Common (return) terminal for all measurements.

Rotary Switch Positions

Switch

Position Measurement Function

Hz AC voltage from 30.0 mV to 1000 V.

Frequency from 2 Hz to 99.99 kHz.

Hz DC voltage 1 mV to 1000 V.

Frequency from 2 Hz to 99.99 kHz.

DC mV 0.1 mV to 600 mV.

Temperature −40 °C to +400 °C

−40 °F to +752 °F

Ohms from 0.1 Ωto 50 MΩ.

Farads from 1 nF to 9999 µF.

Beeper turns on at <25 Ωand turns off at >250 Ω.

Diode test. Displays OL above 2.4 V.

AC mA from 3.00 mA to 400 mA (600 mA overload

for 2 minutes maximum).

DC mA from 0.01 mA to 400 mA (600 mA overload

for 2 minutes maximum).

Frequency of AC mA 2 Hz to 30 kHz.

AC A from 0.50 A to 10 A (20 A overload for 30

seconds maximum).

DC A from 0.01 A to 10 A (20 A overload for 30

seconds maximum)

>10.00 display flashes.

>20 A, OL is displayed.

Frequency of AC A 2 Hz to 30 kHz.

Note: AC voltage and current AC-coupled, true RMS, up to 1 kHz.

Display

13 14 15

12 10

AIK02F.EPS

No. Symbol Meaning

1 sContinuity test.

Diode test.

3 KNegative readings.

4 YUnsafe voltage. Voltage ≥30 V, or

voltage overload (OL)

Display HOLD is enabled. Display

freezes present reading.

In MIN MAX AVG mode, MIN MAX

AVG recording is interrupted.

AutoHOLD is enabled. Display holds

present reading until it detects new

stable input. Then the Meter beeps

and displays new reading.

MAX , MIN,

AVG

MIN MAX AVG enabled.

Maximum, minimum, or average

reading.

No. Symbol Meaning

7 nµF, °F, °C

mVA, Mk

, kHz Measurement units.

8 DC, AC Direct current, alternating current.

9 bLow battery. Replace battery.

10 610000mV All possible ranges.

11 Bar graph Analog display.

12 Auto Range

Manual Range

The Meter selects the range with

the best resolution.

The user selects the range.

13 ±Bar graph polarity.

14 0L The input out of range.

15 LEAd

Test lead alert. Displayed when

the rotary switch is moved to or

from the mA or Aposition.

Error Messages

bAtt Replace the battery immediately.

diSC In the capacitance function, too much electrical

charge is present on the capacitor being tested.

EEPr

Err Invalid EEPROM data. Have Meter serviced.

CAL

Err Invalid calibration data. Calibrate Meter.

Models 175, 177 & 179

Users Manual

MIN MAX AVG Recording Mode

The MIN MAX AVG recording mode captures the minimum and

maximum input values, and calculates a running average of all

readings. When a new high or low is detected, the Meter beeps.

Note

For DC functions, accuracy is the specified accuracy of the

measurement function

12 counts for changes longer than

275 ms in duration.

For AC functions, accuracy is the specified accuracy of the

measurement function

40 counts for changes longer than

1.2 s in duration.

To use MIN MAX AVG recording:

⇒Make sure that the Meter is in the desired measurement

function and range. (Autoranging is disabled in the MIN MAX

AVG mode.)

⇒Press MIN MAX to activate MIN MAX AVG mode.

and MAX light, and the highest reading detected

since entering MIN MAX AVG is displayed.

⇒Press MIN MAX to step through the low (MIN), average

(AVG), and present readings.

⇒To pause MIN MAX AVG recording without erasing stored

values, press HOLD.

is displayed.

To resume MIN MAX AVG recording, press HOLD again.

turns off.

⇒To exit and erase stored readings, press MIN MAX for 1

second or turn the rotary switch.

Display HOLD and AutoHOLD Modes

Warning

To avoid electric shock, do not use the Display HOLD or

AutoHOLD mode to determine if a circuit is live.

Unstable or noisy readings will not be captured.

In the Display HOLD mode, the Meter holds the reading on the

display.

In the AutoHOLD mode, the Meter holds the reading on the

display until it detects a new stable reading. Then the Meter

beeps and displays the new reading.

⇒Press HOLD to activate Display HOLD.

lights.

⇒Press HOLD again to activate AutoHOLD.

lights.

⇒Press HOLD again to resume normal operation.

To resume normal operation at any time, press HOLD for 1

second or turn the rotary switch.

YELLOW Button

Press the YELLOW button to select alternate measurement

functions on a rotary switch setting, e.g., to select DC mA, DC A,

Hz, temperature (Model 179 only), capacitance, diode test.

Display Backlight (Model 177 and 179 Only)

Press

to toggle the backlight on and off. The backlight

automatically turns off after 2 minutes.

Manual Ranging and Autoranging

The Meter has both Manual range and Autorange modes.

⇒In the Autorange mode, the Meter selects the range with the

best resolution.

⇒In the Manual Range mode, you override Autorange and

select the range yourself.

When you turn the Meter on, it defaults to Autorange and Auto

Range is displayed.

1. To enter the Manual Range mode, press RANGE.

Manual Range is displayed.

2. In the Manual Range mode, press RANGE to increment the

range. After the highest range, the Meter wraps to the lowest

range.

Note

You cannot manually change the range in the MIN MAX

AVG, Display HOLD, or AutoHOLD modes.

If you press

RANGE

while in MIN MAX AVG, Display

HOLD, or AutoHOLD, the Meter beeps, indicating an

invalid operation, and the range does not change.

3. To exit Manual Range, press RANGE for 1 second or turn the

rotary switch.

The Meter returns to Autorange and Auto Range is displayed.

Power-Up Options

To select a Power-Up Option, hold down the button indicated

while turning the Meter from OFF to any switch position.

Power-Up Options are cancelled when the Meter is turned OFF.

Button Power-Up Options

AutoHOLD

Turns on all display segments.

Release HOLD to turn off display; the software

version number is displayed and the Meter

resumes normal operation.

MDisables beeper.

REnables "Smoothing" mode.

Dampens display fluctuations of rapidly changing

inputs by digital filtering.

(YELLOW)

Disables automatic power-down ("Sleep mode").

Sleep mode is also disabled while the Meter is in a

MIN MAX AVG Recording mode, or the AutoHOLD

mode.

SDisables automatic 2-minute backlight timeout.

(Model 177 and 179 Only)

Models 175, 177 & 179

Users Manual

Making Basic Measurements

The figures on the following pages show how to make basic

measurements.

When connecting the test leads to the circuit or device, connect

the common (COM) test lead before connecting the live lead;

when removing the test leads, remove the live lead before

removing the common test lead.

Warning

To avoid electric shock, injury, or damage to the Meter,

disconnect circuit power and discharge all high-voltage

capacitors before testing resistance, continuity, diodes,

or capacitance.

Measuring AC and DC Voltage

Volts AC Volts DC Millivolts DC

VVmV

RANGEHOLD

MINMAX

RANGEHOLD

MINMAX

RANGEHOLD

MINMAX

AIK03F.EPS

Measuring Resistance

RANGEHOLD

MINMAX

AIK04F.EPS

Measuring Capacitance

RANGEHOLD

MINMAX

AIK05F.EPS

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