Models 175, 177 & 179
Contents
1. Models 175 177 amp 179 True RMS Multimeters May 2003 Rev 1 10 08 2003 2008 Fluke Corporation All rights reserved Printed in USA Specifications are subject to change without notice All product names are trademarks of their respective companies Lifetime Limited Warranty Each Fluke 20 70 80 170 and 180 Series DMM will be free from defects in material and workmanship for its lifetime As used herein life time is defined as seven years after Fluke discontinues manufacturing the product but the warranty period shall be at least ten years from the date of purchase This warranty does not cover fuses disposable batteries damage from neglect misuse contamination alteration accident or abnormal conditions of operation or handling including failures caused by use outside of the product s specifications or normal wear and tear of mechanical components This warranty covers the original purchaser only and is not transferable For ten years from the date of purchase this warranty also covers the LCD 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 and prove date of purchase please complete and return the registration card accompanying the product or register your product on http www fluke com Fluke will at its option repair at no charge replace or refund the purchase price of a defective product purchas2. duration All AC voltage and AC current ranges are specified from 5 of range to 100 of range Frequency is specified from 2 Hz to 99 99 kHz in Volts and from 2 Hz to 30 kHz in Amps Below 2 Hz the display shows zero Hz Amps input burden voltage typical 400 mA input 2 mV A 10 A input 37 mV A Does not include error of the thermocouple probe 400 0 mA accuracy specified up to 600 mA overload gt 10A unspecified 13 Models 175 177 amp 179 Users Manual Input Impedance Common Mode Rejection Ratio Nominal 1 kQ Unbalanced Volts AC 1000 V RMS gt 10 MQ lt 100 pF gt 60 dB DC 50 Hz or 60 Hz Volts DC 1000 V RMS gt 10 MQ lt 100 pF gt 120 dB DC 50 Hz or 60 Hz gt 60 dB 50 Hz or 60 Hz mv q 1000 V RMS gt 10 MQ lt 100 pF gt 120 dB DC 50 Hz or 60 Hz gt 60 dB 50 Hz or 60 Hz Open Circuit Test Full Scale Voltage To Short Circuit Current Voltage 600 kQ 50 MQ Ohms Capacitance 1000 V RMS lt 8 0 VDC lt 660 mV DC lt 4 6V DC lt 1 1mA re 1000 V RMS lt 8 0 V DC 24VDC lt 1 1 MA 1 107 V Hz maximum Function Overload Protection Normal Mode Rejection 2 For circuits lt 0 3 A short circuit 660 V for high energy circuits Function o O OS Overload Protection mA Fused 44 100 A 1000 V FAST Fuse 600 mA overload for 2 minutes maximum 10 minutes rest minimum A Fused 11 A 1000 V FAST Fuse 20 A overload for 30 seconds maximum 10 minutes rest minimum 14
3. 1000 V FAST Fuse Digital 6000 counts updates 4 sec Bar Graph 33 segments Updates 40 sec Frequency 10 000 counts Capacitance 1 000 counts Operating 2000 m Storage 12 000 m Operating 10 C to 50 C Storage 40 C to 60 C 0 1 X specified accuracy C lt 18 C or gt 28 C In an RF field of 3 V M accuracy specified accuracy except in temperature specified accuracy 5 C 9 F Maximum Noncondensing 90 to 35 C 75 to 40 C 45 to 50 C Alkaline 400 hrs typical 4 3 cm x 9 cm x 18 5 cm 420g ANSVSA see CSA C22 2 1010 1 IEC 61010 to 1000 V Measurement Category III 600 V Measurement ategory CSA T V EN61010 UL C vDE N101407 11 Models 175 177 amp 179 Users Manual 9 i Function Range Resolution Accuracy 0f Reading T Counts 1 Model 175 Model 177 Model 179 y1 V AC Volts 2 600 0 mV TO 3 TO 3 TO 3 6 000 V 45 Hz to 500 Hz 45 Hz to 500 Hz 45 Hz to 500 Hz 60 00 V 600 0 V 1000 V 2 0 3 500 Hz to 1 kHz 2 0 3 500 Hz to 1 kHz 2 0 3 500 Hz to 1 kHz 600 0 mV 0 15 2 0 09 2 0 09 2 DC Volts 6 000 V 0 001 V 60 00 V 0 01 V 0 15 2 0 09 2 0 09 2 600 0 V 0 1V 1000 V 0 15 2 0 15 2 0 15 2 Continuity 600 Q Meter beeps at lt 25 Q beeper turns off at gt 250 Q detects opens or shorts of 250 us or longer 600 0 Q 0 9 2 0 9 2 0 9 2 6 000 kQ 0 9 1 0 9 1 0 9 1 60 00 kQ 0 9 1 0 9 1 0 9
4. damp cloth and mild detergent Do not use AA Warning abrasives or solvents Dirt or moisture in the terminals can affect i soe g readings To avoid shock injury or damage to the Meter 5 e Use ONLY fuses with the amperage interrupt Testing the Fuses voltage and speed ratings specified AA Warning e Replace the battery as soon as the low battery To avoid electrical shock or injury remove the test leads indicator appears and any input signals before replacing the fuse Test fuses as shown below 440 mA 11A lt 12 9 OK lt 5 0 OK L G AIK12F EPS AIK13F EPS F1 Fuse 440 mA 1000 V FAST Fluke PN 943121 F2 Fuse 11 A 1000 V FAST Fluke PN 803293 B1 Battery 9 V Alkaline Fluke PN 614487 NEDA 1604 1604A 10 Specifications True RMS Multimeters Specifications Accuracy is specified for 1 yr after calibration at operating temperatures of 18 C to 28 C with relative humidity at 0 to 90 Accuracy specifications take the form of of Reading Counts Maximum voltage between any terminal and earth ground 1000 V DC or AC RMS Surge Protection A Fuse for mA inputs A Fuse for A input Display Altitude Temperature Temperature coefficient Electromagnetic Compatibility EN 61326 1 1997 Relative Humidity Battery Life Size H x W x L Weight Safety Compliances Certifications 8 kV peak per IEC 61010 440 mA 1000 V FAST Fuse 11 A
5. entering MIN MAX AVG is displayed gt 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 gt To exit and erase stored readings press MIN MAX for 1 second or turn the rotary switch Display HOLD and AutoHOLD Modes AA 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 MEMAJ lights gt 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
6. 1 600 0 kQ i 0 9 1 0 9 1 0 9 1 6 000 MQ 0 9 1 0 9 1 0 9 1 15 3 muts 15 3 1 2 2 PEE 1 2 2 1 2 2 1 2 2 1 2 2 1 2 2 1 2 2 1 2 2 10 typical 10 typical 10 typical True RMS 400 0 ma 6 000 A 45 Hz to 1 10 00 A7 All AC voltage and AC current ranges are specified from 5 of range to 100 of range Crest factor of lt 3 at full scale up to 500 V decreasing linearly to crest factor lt 1 5 at 1000 V For non sinusoidal waveforms add 2 reading 2 full scale typical for crest factors up to 3 In the 9999 uF range for measurements to 1000 uF the measurement accuracy is 1 2 2 for all models Amps input burden voltage typical 400 mA input 2 mV mA 10 A input 37 mV A 400 0 mA accuracy specified up to 600 mA overload gt 10A unspecified True RMS Multimeters Specifications 9 i Function Range 1 Resolution Acc racy ICL of Reading LCounts1 Model 175 Model 177 Model 179 60 00 mA 6 Eaa 10 3 10 3 99 99 Hz 999 9 Hz 9 999 kHz 0 1 1 0 1 1 0 1 1 99 99 kHz AC or DC coupl A gt gt input Temperature 40 C to 400 C 0 1 C NA T 10 40 F to 752 F 0 1 F 1 18 MIN MAX AVG For DC functions accuracy is the specified accuracy of the measurement function 12 counts for changes longer than 350 ms in duration For AC functions accuracy is the specified accuracy of the measurement function 40 counts for changes longer than 900 ms in
7. affect the 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 Visit the Fluke website at www fluke com Register your Meter at register fluke com 2 02 Table of Contents Title Page Contacting FIUKC eee eee cette teeeeeeeeees Warning and Caution Statements Unsafe Voltage 0 00 eeeteeesseeeeerssseeeereseeeeeeneees Test Lead Alert cipitation Battery Saver Sleep Mode TORMINGIS sees sie caccansceceetcesdepesnees cos beepessectagecsneenneaseenttneaces Rotary Switch Positions 00 00 eee rete DISDIAY s sssssedegescasatvigcassesoiaxoecusyaaes tpessaantouates aa aoaia MIN MAX AVG Recording Mode e eee Display HOLD and AutoHOLD Mod es ee YELLOW Button 0 00 cceeeeeeeceeeeeeeeeeeeeeeeeeeeseeeeaes Display Backlight Model 177 and 179 Only Manual Ranging and Autoranging Power Up Options s es Making Basic Measurements Measuring AC and DC Voltage eee eee Measuring Resistance Measuring Capacitance Testing for Continuity eee Measuring Temperature Model 179 Only Testing Diodes Measuring AC or DC Current Understanding AC Zero Input Behavior of True RMS Meters Measuring Frequency Using the Bar Graph ee Cleaning eee Testing the Fuses sessen Replacing the Batt
8. and Autorange modes Inthe Autorange mode the Meter selects the range with the best resolution Inthe 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 or Display HOLD modes If you press RANGE while in MIN MAX AVG or Display HOLD the Meter beeps twice 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 True RMS Multimeters Manual Ranging and Autoranging 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 V switch position turns on all LCD segments V switch position displays the software version number mV switch position displays the model number pnma nmax Disables beeper bEEP Enables Smoothing mode S Dampens display fluctuations of rapidly changing inputs by digital filtering Disab
9. dance with IEC 61010 1 54CJ Battery Low battery when shown on Conforms to relevant Australian standards display N10140 Inspected and licensed by TUV VDE Verband Deutscher Electroniker Technischer Uberwachungs Verein Product Services 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 to IV based on the magnitude of danger from transient impulses CAT Ill 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 amp current Diodes e Resistance Continuity Voltage amp 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 Register your Meter at http register fluke com Models 175 177 amp 179 T
10. ed through a Fluke authorized sales outlet and at the applicable international price Fluke reserves the right to charge for importation costs of repair replacement parts if the product purchased in one country is sent for repair elsewhere If the product is defective contact your nearest Fluke authorized service center to obtain return authorization information then send the product to that service center with a description of the difficulty postage and insurance prepaid FOB Destination Fluke assumes no risk for damage in transit Fluke will pay return transportation for product repaired or replaced in warranty Before making any non warranty re pair Fluke will estimate cost and obtain authorization then invoice you for repair and return transportation THIS WARRANTY IS YOUR ONLY REMEDY NO OTHER WARRANTIES SUCH AS FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSED OR IMPLIED FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAM AGES OR LOSSES INCLUDING LOSS OF DATA ARISING FROM ANY CAUSE OR THEORY AUTHORIZED RESELLERS ARE NOT AUTHORIZED TO EXTEND ANY DIFFERENT WARRANTY ON FLUKE S BEHALF Since some states do not allow the exclusion or limita tion of an implied warranty or of incidental or consequential damages this limitation of liability may not apply to you If any provision of this warranty is held invalid or unenforceable by a court or other decision maker of competent jurisdiction such holding will not
11. ery and Fuses SSPOCITICATIONS AEA E E AA 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 j 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 AC Alternating Current Fuse ed DC Direct Current Conforms to European Union directives DC AC e Canadian Standards Association L Earth ground Double insulated A Important Information see manual Gy Underwriters Laboratories Inc Meter in accor
12. les automatic power down Sleep mode PoFF Sleep mode is also disabled while the Meter is in a MIN MAX AVG Recording mode or the AutoHOLD mode Disables automatic 2 minute backlight timeout LoFF Model 177 and 179 Only YELLOW Models 175 177 amp 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 AA 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 AIKO3F EPS Measuring Resistance AIKO4F EPS AIKOSF EPS Testing for Continuity AIKO6F EPS 80BK A Integrated Pipe Type K DMM Temperature Probe AIK10F EPS AA Warning Do not connect 80BK A to live circuits True RMS Multimeters Making Basic Measurements Testing Diodes Good Diode Good Diode Forward Bias Reverse Bias Bad Diode Bad Diode Shorted AIKO7F EPS 7 Models 175 177 amp 179 Users Manual Measuring AC or DC Curren
13. rue RMS Multimeters Warning and Caution Statements A AA 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 230 V or a voltage overload OL the symbol is displayed Test Lead Alert To remind you to check that the test leads are in the correct terminals EAd is momentarily displayed when you move the rotary switch to or from the mA or A position AA 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 amp 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 A 600V CAT E CL 1000v cat If AIKO1F EPS 1 Input terminal for AC and DC milliamp measurements to 400 mA and frequency measurements Input terminal for AC and DC current measurements to 10 A and frequency measurements Input terminal for voltage continuity resis
14. t AA Warning To avoid personal injury or damage to the Meter e Never attempt to make an in circuit current measurement when the open circuit potential to earth is gt 1000 V e Check the Meter s fuses before testing See Testing the Fuses e Use the proper terminals switch position and range for your measurement e Never place the probes in parallel with a circuit or component when the leads are plugged into the current terminals Turn power OFF break circuit insert Meter in series turn power on AIKO8F EPS Understanding AC Zero Input Behavior of True RMS Meters Unlike averaging meters which can accurately measure only pure sinewaves True RMS meters accurately measure distorted waveforms Calculating True RMS converters require a certain level of input voltage to make a measurement This is why AC voltage and current ranges are specified from 5 of range to 100 of range Non zero digits that are displayed on a True RMS meter when the test leads are open or are shorted are normal They do not affect the specified AC accuracy above 5 of range Unspecified input levels on the lowest ranges are e AC voltage below 5 of 600 mV AC or 30 mV AC e AC current below 5 of 60 mA AC or 3 mA AC Measuring Frequency AA Warning To avoid electrical shock disregard the bar graph for frequencies gt 1 kHz If the frequency of the measured signal is gt 1 kHz the bar graph is unspecified The Meter measures
15. tance diode capacitance frequency and temperature Model 179 only measurements Common return terminal for all measurements Rotary Switch Positions Hz Frequency from 2 Hz to 99 99 kHz DC voltage 1 mV to 1000 V Hz 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 Q to 50 MQ Farads from 1 nF to 9999 uF a Beeper turns on at lt 25 Q and turns off at gt 250 Q Diode test Displays OL above 2 4 V AC mA from 3 00 mA to 400 mA DC mA from 0 01 mA to 400 mA Frequency of AC mA 2 Hz to 30 kHz AC A from 0 300 A to 10 A DC A from 0 001 Ato 10A gt 10 00 display flashes gt 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 4 TEMG A MAXMINAVG AIKO2F EPS Tp __ continuity test Diode test Negative readings 4 Unsafe voltage Voltage 30 V or voltage overload OL 5 Display HOLD is enabled Display freezes present reading In MIN MAX AVG mode MIN MAX AVG recording is interrupted LA Auto HOLD AutoHOLD is enabled Display holds present reading until it detects new stable input Then the Meter beeps and displays new reading MIN MAX MIN MAX AVG enabled MAX MIN AVG Maximum minimum average or present reading True RMS Multimeters Display No Symb Meanings 7 nu F F C Measurement uni
16. the frequency of a signal The trigger level is 0 V 0 AAC for all ranges AC Current Frequency AC DC Voltage Frequency AIKO9F EPS gt To exit frequency press YELLOW button or turn the rotary switch In frequency the bar graph shows the AC DC voltage or AC current accurately up to 1 kHz Select progressively lower ranges using manual ranging for a stable reading True RMS Multimeters Using the Bar Graph Using the Bar Graph The bar graph is like the needle on an analog Meter It has an overload indicator to the right and a polarity indicator to the left Because the bar graph updates about 40 times per second which is 10 times faster than the digital display the bar graph is useful for making peak and null adjustments and for observing rapidly changing inputs The bar graph is disabled when measuring capacitance or temperature In frequency the bar graph accurately indicates the voltage or current up to 1 kHz The number of lit segments indicates the measured value and is relative to the full scale value of the selected range In the 60 V range for example see below the major divisions on the scale represent 0 15 30 45 and 60 V An input of 30 V lights the negative sign and the segments up to the middle of the ope HHE LULU 60 I 0 mT LLLLLLL I AIK11F EPS Models 175 177 amp 179 Users Manual Cleaning Replacing the Battery and Fuses Wipe the case with a
17. ts mVA MKO kHz 8 DC AC Direct current alternating current Re o O Low battery Replace battery 610000mV All possible ranges Bar graph Analog display Auto Range The Meter selects the range with the best resolution Manual Range The user selects the range 15 LEAd ATest lead alert Displayed when the rotary switch is moved to or from the mA or A position Error Messages Replace the battery immediately In the capacitance function too much electrical charge is present on the capacitor being tested Invalid EEPROM data Have Meter serviced Invalid calibration data Calibrate Meter Open thermocouple is detected Models 175 177 amp 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 350 ms in duration For AC functions accuracy is the specified accuracy of the measurement function 40 counts for changes longer than 900 ms 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 gt Press MIN MAX to activate MIN MAX AVG mode TOMES and MAX light and the highest reading detected since
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