Fluke 2680A Network Card User Manual
Contents
1. Note To avoid blowing the meter s 400 mA fuse use the mA uA terminal only if you are sure the current is less than 400 mA Making Measurements Total current to circuit Circuit Power OFF to connect meter ON for measurement OFF to disconnect meter iy7f eps Figure 7 Measuring Current 23 80 Series III Users Manual 24 If you are using the A terminal set the rotary switch to mA A If you are using the mA uA terminal set the rotary switch to pA for currents below 4000 uA 4 mA or mA A for currents above 4000 uA To measure ac current press the blue button Break the circuit path to be tested Touch the black probe to the more negative side of the break touch the red probe to the more positive side of the break Reversing the leads will produce a negative reading but will not damage the meter Turn on power to the circuit then read the display Be sure to note the unit given at the right side of the display uA mA or A Turn off power to the circuit and discharge all high voltage capacitors Remove the meter and restore the circuit to normal operation The following are some tips for measuring current If the current reading is O and you are sure the meter is set up correctly test the meter s fuses as described under Testing the Fuses A current meter drops a small voltage across itself which might affect circuit operation You can calculate this burden voltage using the values l2. Symbols AAA 2 wl IC 3 Rotary Switch Positions vicio oi 4 inepto c 5 Display E TEE 6 Estimating Capacitance Values Over 5 Microfarads ooococonnnoccconoccccnoooncnnnnnnnononannnnnonencnnns 7 Functions and Trigger Levels for Frequency Measurements AAA 8 MIN MAX Functions A 9 Replacement Pals caia itin otro 10 O 11 Models 85 and 87 AC Voltage Function Gpechicatons 12 Model 83 AC Voltage Function Specifications esseee 13 DC Voltage Resistance and Conductance Function Specifications 14 Current Function Specifications oooocinndinnicinnnnnccononannncccnnrcnnnancn nc conc nnrc rra 15 Capacitance and Diode Function Specifications ccceeeceeesceeeeeeeeeeeeeeeeeeneeeeeeeeeneeeeeeeeae 16 Frequency Counter Specifications essssssssssseseeeeeeeeeennenneen nennen 17 Frequency Counter Sensitivity and Trigger Levele 18 Electrical Characteristics of the Terminals eene 19 MIN MAX Recording Specifications eessseseeeneeneennenen nenne iii 80 Series III Users Manual List of Figures Figure Title 1 Display Features Model 87 Ghown Au 2 Measuring AC and DC Vohtage 3 Testing T5 4 Measuring Resistance ENNEN 5 Measuring Capacitance eminentment nis 6 Testing e EE Te ING oper Mec mem 8 Components of Duty Cycle Measurem
3. button position For Model 87 hold the yellow button down for one second to enter the Models 83 4 1 2 digit mode To return to the 3 1 2 digit mode hold the button down SES Ee only until all display segments turn on about one second 85 gray button Continuity Turns the continuity beeper on and off Oc MIN MAX On Model 87 switches between 250 us and 100 ms or 1 s response recording times Power up NA Disables the beeper for all functions Any switch Stores the present reading as a reference for subsequent readings The Relative position display is zeroed and the stored reading is subtracted from all mode subsequent readings Power up For Models 83 and 85 enables zoom mode for the bar graph Any switch Starts the frequency counter poston Press again to enter duty cycle mode Power up Provides gt 4000 MQ input impedance for the 400 mV dc range NA 80 Series III Users Manual AUTO100ms MAX MIN AVG EII ACDC ZS re 6 nFS o el Mk E OT REH o iy1f eps Figure 1 Display Features Model 87 Shown Your Meter s Features Table 5 Display Features 100 ms EN best resolution Indicators for minimum maximum recording mode Number Feature Indication Page Polarity indicator for the analog bar graph 2 A Relative REL mode is active 3 1 The continuity beeper is on 4 m Indicates negative readings In relative mode this sign indicates that the
4. eps Figure 11 Replaceable Parts 39 80 Series III Users Manual Table 10 Accessories Item AC70A TL75 TL24 TP1 TP4 AC20 C81Y C81G 40 Fluke accessories are available from your authorized Fluke distributor Description Industrial Test Lead Set Optional Alligator Clips for use with TL75 test lead set Test Lead Set Test Lead Set Heat Resistant Silicone Test Probes Flat Blade Slim Reach Test Probes 4 mm diameter Slim Reach Safety Grip Wide Jaw Alligator Clips Holster Yellow Holster Gray Optional Carrying Case Soft Optional Fluke Part Number AC70A TL75 TL24 TP1 TP4 AC20 C81Y Quantity Specifications Specifications Maximum Voltage betvveen any Terminal and Earth Ground 1000 V rms A Fuse Protection for mA or uA inputs 44 100 A 1000 V FAST Fuse A Fuse Protection for A input 11 A 1000 V FAST Fuse Display Digital 4000 counts updates 4 sec Model 87 also has 19 999 counts in 4 digit mode updates 1 sec Analog updates 40 sec Frequency 19 999 counts updates 3 sec at gt 10 Hz Model 87 4 x 32 segments equivalent to 128 Models 83 85 43 segments Temperature Operating 20 C to 55 C Storage 40 C to 60 C Altitude Operating 2000 m Storage 10 000 m Temperature Coefficient 0 05 x specified accuracy C lt 18 C or gt 28 C Electromagnetic Compatibility In an RF field of 3 V m total accuracy specified accuracy
5. reading number of least significant digits at 18 C to 28 C with relative humidity up to 90 fora period of one year after calibration For Model 87 in the 4 Y digit mode multiply the number of least significant digits counts by 10 AC conversions are ac coupled and valid from 5 to 100 of range Models 85 and 87 are true rms responding AC crest factor can be up to 3 at full scale 6 at half scale For non sinusoidal wave forms add 2 Rdg 2 full scale typical for a crest factor up to 3 Below 10 of range add 6 counts Models 85 and 87 are true rms responding meters When the input leads are shorted together in the ac functions the meters display a reading typically lt 25 counts that is caused by internal amplifier noise The accuracy on Models 85 and 87 is not significantly affected by this internal offset when measuring inputs that are within 5 to 100 of the selected range When the rms value of the two values 5 of range and internal offset is calculated the effect is minimal as shown in the following example where 20 0 5 of 400 mV range and 2 5 is the internal offset RMS SQRT 20 0 2 5 20 16 If you use the REL function to zero the display when using the ac functions a constant error that is equal to the internal offset will result Frequency range 1 kHz to 2 5 kHz Below 10 of range add 16 counts Specifications Table 12 Model 83 AC Voltage Function Specifications Function
6. which could lead to possible electric shock or personal injury replace the battery as soon as the battery indicator EN appears Replace the battery as follows refer to Figure 10 1 Turn the rotary switch to OFF and remove the test leads from the terminals Remove the battery door by using a standard blade screwdriver to turn the battery door screws one quarter turn counterclockwise Replace the battery and the battery door Secure the door by turning the screws one quarter turn clockwise Replacing the Fuses Referring to Figure 10 examine or replace the meter s fuses as follows 1 Turn the rotary switch to OFF and remove the test leads from the terminals Remove the battery door by using a standard blade screwdriver to turn the battery door screws one quarter turn counterclockwise Remove the three Phillips head screws from the case bottom and turn the case over Gently lift the input terminal end of the top case to separate the two halves of the case Remove the fuse by gently prying one end loose then sliding the fuse out of its bracket Install ONLY specified replacement fuses with the amperage voltage and speed ratings shown in Table 9 35 80 Series III Users Manual 36 Verify that the rotary switch and the circuit board switch are in the OFF position Replace the case top ensuring that the gasket is properly seated and case snaps together above the LCD item 1 Reinstall
7. 000 V Duty Cycle Range 0 0 to 99 990 Minimum Sensitivity RMS Sinewave Approximate Trigger Level 5 Hz 20 kHz 0 5 Hz 200 kHz DC Voltage Function 70 mV to 400 Hz 70 mV to 400 Hz 40 mV 150 mV 150 mV 0 3 V 0 7 V 1 7 V 3V 7 V 8140 kHz 4V 30 V 70 V 814 0 kHz 40 V 300 V 700 V x1 4 kHz 400 V Accuracy Within 0 05 per kHz 0 1 of full scale for a 5 V logic family input on the 4 V dc range Within 0 06 x Voltage Range Input Voltage x 100 of full scale for sine wave inputs on ac voltage ranges 1 Maximum input for specified accuracy 10X Range or 1000 V 48 Specifications Table 18 Electrical Characteristics of the Terminals Overload Protection Input Common Mode Rejection Impedance Ratio nominal 1 kQ unbalance Normal Mode Rejection 1000 V rms 10 MQ lt 100 pF gt 120 dB at dc 50 Hz or 60 Hz gt 60 dB at 50 Hz or 60 Hz 1000 V rms 10 MQ lt 100 pF gt 120 dB at dc 50 Hz or 60 Hz gt 60 dB at 50 Hz or 60 Hz V 1000 V rms 10 MQ lt 100 pF 1000 V rms ac coupled Open Circuit gt 60 dB dc to 60 Hz Full Scale Voltage Typical Short Circuit Current Test Voltage To 4 0 MQ 40 MQ or nS Ak lt 450 mV de lt 1 3 V de 200 uA 80 yA 12A 140A 0 2 uA bau 1 3 V dc 1000 V rms 3 9 V dc 3 000 V dc 0 6 mA typical 106 V Hz max 49 80 Series III Users Manual Table 19 MIN MAX Recording S
8. 96 2 9 1 0 2 9 1 0 2 100 uV uA 45 Hz to 2 kHz 4000 pA 1 A 1 2 2 9 1 0 239 1 0 2 100 uV uA UA 400 0 pA 0 1 uA 0 4 4 0 2 4 0 2 4 100 uV uA 4000 uA 1 uA 0 4 2 0 2 2 0 2 2 100 uV uA 1 See the first sentence in Table 11 for a complete explanation of accuracy 2 AC conversion for Model 83 is ac coupled and calibrated to the rms value of a sinewave input 3 AC conversions for Models 85 and 87 are ac coupled true rms responding and valid from 5 to 100 of range 4 See note 3 in Table 11 5 Below a reading of 200 counts add 10 counts 46 Specifications Table 15 Capacitance and Diode Function Specifications Function With a film capacitor or better using Relative mode to zero residual See the first sentence in Table 11 for a complete explanation of accuracy Frequency 0 5 Hz to 200 kHz pulse width gt 2 us Range Resolution Accuracy Table 16 Frequency Counter Specifications Function Range Resolution Accuracy 199 99 0 01 Hz 0 005 1 1999 9 0 1 Hz 0 005 1 19 999 kHz 0 001 kHz 0 005 1 199 99 kHz 0 01 kHz 0 005 1 gt 200 kHz 0 1 kHz unspecified 4 See the first sentence in Table 11 for a complete explanation of accuracy 47 80 Series III Users Manual Table 17 Frequency Counter Sensitivity and Trigger Levels Input Range 400 mV de 400 mV de 4V 40 V 400 V 1
9. Capacitance measurement gt Diode test mA DC or AC current measurements from 0 mA to 10 00 A A uA DC or AC current measurements from 0 uA to 4000 uA 80 Series III Users Manual Table 4 Pushbuttons Button Function Button Function Page C 2 moae Selects capacitance Blue mA A uA Switches between dc and ac current button Power up Disables automatic power off feature Any switch Starts recording of minimum and maximum values Steps the display through position MIN MAX AVG average and present readings Power up Enables high accuracy 1 second response time for MIN MAX recording Any switch Switches between the ranges available for the selected function To return to position autoranging hold the button down for 1 second See ranges in Manually selecting a range causes the meter to exit the Touch Hold MIN specications MAX and REL relative modes Power up For servicing purposes only NA Any switch Touch Hold captures the present reading on the display When a new stable position reading is detected the meter beeps and displays the new reading MIN MAX Stops and starts recording without erasing recorded values recording Frequency Stops and starts the frequency counter counter Your Meter s Features Table 4 Pushbuttons cont Button Function Button Function Page Model 87 Any switch Turns the backlight on and off NA yellow
10. FLUKE 80 Series Ill Multimeters Users Manual October 1997 Rev 5 12 03 1997 2003 Fluke Corporation All rights reserved All product names are trademarks of their respective companies Lifetime Limited VVarranty 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 lifetime 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 purchased through a Fluke authorized sales outlet and at the applicable intern
11. Range Resolution Accuracy 50 Hz 60 Hz 45 Hz 1 kHz 1 kHz 5 kHz V 400 0 mV 0 1 mV 0 5 4 1 0 4 2 0 4 4 000 V 0 001 V 0 5 2 1 0 4 2 0 4 40 00 V 0 01 V 0 5 2 1 0 4 2 0 4 400 0 V 0 1 V 0 5 2 1 0 4 2 0 433 1000 V 1V 0 5 2 1 0 4 unspecified 1 See the first sentence in Table 11 for a complete explanation of accuracy 2 Below a reading of 200 counts add 10 counts 3 Frequency range 1 kHz to 2 5 kHz 43 80 Series III Users Manual Table 13 DC Voltage Resistance and Conductance Function Specifications Accuracy Function Range Resolution Model 83 Model 85 Model 87 4 000 V 0 001 V 0 1 1 0 08 1 0 05 1 40 00 V 0 01 V 0 1 1 0 08 1 0 05 1 400 0 V DIV 0 1 1 0 08 1 0 05 1 1000 V 1V 0 1 1 0 08 1 0 05 1 400 0 mV 0 1 mV 0 3 1 0 1 1 0 1 1 mV 400 0 Q 0 12 0 4 2 0 2 2 0 2 2 Q 4 000 kQ 0 001 RQ 0 4 1 0 2 1 0 2 1 40 00 kQ 0 01 RQ 0 4 1 0 2 1 0 2 1 400 0 ka 0 1 RQ 0 7 1 0 6 1 0 6 1 4 000 MQ 0 001 MQ 0 7 1 0 6 1 0 6 1 40 00 MQ 0 01 MO 1 0 3 1 0 3 1 0 3 ns 40 00 nS 0 01 nS 1 0 10 1 0 10 1 0 10 See the first sentence in Table 11 fora complete explanation of accuracy 2 When usi
12. The 250 us response time is indicated by 1 ms on the display Stored values are erased The present and AVG average values are not available when 250 us is selected Stop recording without erasing stored values Press again to resume recording Exit MIN MAX mode Stored values are erased The meter stays in the selected range Select 1 s high accuracy response time See text under MIN MAX Recording Mode for more explanation MIN MAX readings for the frequency counter are recorded only in the high accuracy mode 31 80 Series III Users Manual Touch Hold Mode AWarning The Touch Hold mode will not capture unstable or noisy readings Do not use Touch Hold mode to determine that circuits are without power The Touch Hold mode captures the present reading on the display When a new stable reading is detected the meter beeps and displays the new reading To enter or exit Touch Hold mode press Relative Mode Selecting relative mode causes the meter to zero the display and store the present reading as the reference for subsequent measurements The meter is locked into the range selected when you pressed Press again to exit this mode 32 In relative mode the reading shown is always the difference between the present reading and the stored reference value For example if the stored reference value is 15 00 V and the present reading is 14 10 V the display shows 0 90 V On Model 87 the re
13. ational 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 repair 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 DAMAGES OR LOSSES INCLUDING LOSS OF DATA ARISING FROM ANY CAUSE OR THEORY AUTHORIZED RESELLERS ARE NOT AUTHORIZED TO EXTEND ANY DIFFERENT WARRANTY ON FLURE S BEHALF Since some states do not allow the exclusion or limitation 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 affect the validity or enforceability of any other provision Fluke Corpora
14. charge time from step 4 by the appropriate value in the uF second of Charge Time column in 6 The result is the estimated capacitance value in microfarads uF Table 6 Estimating Capacitance Values Over 5 Microfarads uF second Suggested of Charge Expected Capacitance Range Time 11 uF to 100 uF 400 RO 101 uF to 1000 uF 40 KQ 1001 uF to 10 000 uF 4k0 10 000 uF to 100 000 uF 400 Q 3000 These ranges keep the full charge time between 3 7 seconds and 33 3 seconds for the expected capacitance values lf the capacitor charges too quickly for you to time select the next higher resistance range Making Measurements Testing Diodes Caution Typical Reading To avoid possible damage to the meter or to the equipment under test disconnect circuit povver and discharge all high voltage capacitors before testing diodes Use the diode test to check diodes transistors silicon controlled rectifiers SCRs and other semiconductor devices This function tests a semiconductor junction by sending a current through the junction then measuring the junction s voltage drop A good silicon junction drops between 0 5 V and 0 8 V To test a diode out of a circuit set up the meter as shown in Figure 6 For forward bias readings on any semiconductor component place the red test lead on the component s positive terminal and place the black lead on the component s negative terminal In a circuit a good diode should still p
15. easuring current check the meter s fuses See Testing the Fuses 80 Series III Users Manual To protect yourself use the following guidelines Use caution when working with voltages above 30 V ac rms 42 V ac peak or 60 V dc Such voltages pose a shock hazard When using the probes keep your fingers behind the finger guards Connect the common test lead before you connect the live test lead When you disconnect test leads disconnect the live test lead first Avoid working alone When measuring current turn off circuit power before connecting the meter in the circuit Remember to place the meter in series with the circuit Your Meter s Features Tables 2 through 5 briefly describe your meter s features and give page numbers where you can find more detailed information about the features Table 2 Inputs Terminal A mA uA COM V Q gt Description Input for 0 A to 10 00 A current measurements Input for O uA to 400 mA current measurements Return terminal for all measurements Input for voltage continuity resistance diode capacitance frequency and duty cycle measurements Frequency Duty cycle Your Meter s Features Table 3 Rotary Switch Positions Switch Position Function Page V AC voltage measurement V DC voltage measurement mV 400 mV dc voltage range ut Ir Continuity test Resistance measurement dE
16. ents 9 Testing the Current Fuses asias ies 10 Battery and Fuse Replacement coooooccccccnconononcccnoncnnnnnnancnononannnnnnnnnncnnnannnns Kn 11 Replaceable EE 80 Series III Users Manual vi Introduction Introduction A Warning Read Safety Information before you use the meter Except vvhere noted the descriptions and instructions in this manual apply to Series IIl Models 83 85 87 and 87 E multimeters Model 87 is shown in all illustrations Safety Information This meter complies vvith e EN61010 1 1993 e ANSI ISA S82 01 1994 e CAN CSA C22 2 No 1010 1 92 e 1000 V Overvoltage Category III Pollution Degree 2 e UL3111 1 Use the meter only as specified in this manual otherwise the protection provided by the meter may be impaired In this manual a Warning identifies conditions and actions that pose hazards to the user A Caution identifies conditions and actions that may damage the meter or the equipment under test International symbols used on the meter and in this manual are explained in Table 1 AWarning To avoid possible electric shock or personal injury follow these guidelines e Do not use the meter if it is damaged Before you use the meter inspect the case Look for cracks or missing plastic Pay particular attention to the insulation surrounding the connectors e Make sure the battery door is closed and latched before you operate the meter e Replace the battery as soon as t
17. er Feature 4000 mV Power Up Options Holding a button down while turning the meter on activates a power up option Table 4 includes the power up options available These options are also listed on the back of the meter Indication Page Displays the currently selected range Analog bar graph Provides an analog indication of the present inputs OL The input or the relative value when in relative mode is too large for the selected range For duty cycle measurements OL is displayed when the input signal stays high or low See specifications for ranges for each function Duty cycle Automatic Power Off The meter automatically turns off if you do not turn the rotary switch or press a button for 30 minutes To disable automatic power off hold down the blue button while turning the meter on Automatic power off is always disabled in MIN MAX recording mode 11 80 Series III Users Manual Input Alert Feature If a test lead is plugged into the mA LA or A terminal but the rotary switch is not correctly set to the mA uA or A position the beeper warns you by making a chirping sound This warning is intended to stop you from attempting to measure voltage continuity resistance capacitance or diode values when the leads are plugged into a current terminal Placing the probes across in parallel with a powered circuit when a lead is plugged into a current terminal can damage the circuit you are test
18. es II Service Manual General Maintenance Periodically wipe the case with a damp cloth and mild detergent Do not use abrasives or solvents Dirt or moisture in the terminals can affect readings and can falsely activate the Input Alert feature Clean the terminals as follows 1 Turn the meter off and remove all test leads 2 Shake out any dirt that may be in the terminals 3 Soak a new swab with a cleaning and oiling agent such as WD 40 Work the swab around in each terminal The oiling agent insulates the terminals from moisture related activation of the Input Alert feature 33 80 Series III Users Manual Testing the Fuses Before measuring current test the appropriate fuse as shown in Figure 9 If the tests give readings other than those shown have the meter serviced 34 A Warning To avoid electrical shock or personal injury remove the test leads and any input signals before replacing the battery or fuses To prevent damage or injury install ONLY specified replacement fuses with the amperage voltage and speed ratings shown in Table 9 Good F2 fuse 00 0 Q to 00 5 Q Replace fuse OL Touch top half of input contacts Gei Good F1 fuse 0 995 kQ to 1 005 RQ Replace fuse OL iy5f eps Figure 9 Testing the Current Fuses Maintenance Replacing the Battery Replace the battery vvith a 9 V battery NEDA A1604 6F22 or 006P A Warning To avoid false readings
19. except Models 85 87 Total Accuracy Specified Accuracy 0 4 of range above 800 MHz uADC only mVAC and uAAC unspecified Model 83 Total Accuracy Specified Accuracy 5 of range above 300 MHz UADC only VDC unspecified Relative Humidity 0 to 90 0 C to 35 C 0 to 70 35 C to 55 C Battery Type 9 V zinc NEDA 1604 or 6F22 or 006P Battery Life 400 hrs typical with alkaline with backlight off Shock Vibration Per MIL T 28800 for a Class 2 instrument Size HxWxL 1 25 in x 3 41 in x 7 35 in 3 1 cm x 8 6 cm x 18 6 cm Size with Holster and Flex Stand 2 06 in x 3 86 in x 7 93 in 5 2 cm x 9 8 cm x 20 1 cm Weight 12 5 oz 355 g Weight with Holster and Flex Stand 22 0 oz 624 g Safety Complies with ANSI ISA S82 01 1994 CSA 22 2 No 1010 1 1992 to 1000 V Overvoltage Category III UL listed to UL3111 1 Licensed by TUV to EN61010 1 41 80 Series III Users Manual Table 11 Models 85 and 87 AC Voltage Function Specifications 42 Function Range Resolution Accuracy 50 Hz 60 Hz 45 Hz 1 kHz 1 kHz 5 kHz 5 kHz 20 kHz 400 0 mV 0 1 mV 0 7 4 1 0 4 2 0 4 2 0 20 4 000 V 0 001 V 0 7 2 1 0 4 2 0 4 2 0 20 40 00 V 0 01 V 0 7 2 1 0 4 2 0 4 2 0 20 400 0 V 0 1 V 0 7 2 1 0 4 2 0 4 4 unspecified 1000 V 1V 0 7 2 1 0 4 9 unspecified unspecified Accuracy is given as of
20. he battery indicator EM appears 80 Series III Users Manual Table 1 International Electrical Symbols d AC Alternating Current NIE DC Direct Current RE Earth ground Fuse AC or DC CC Refer to the manual for information Qe about this feature Conforms to European Union directives Conforms to relevant Canadian Standards Association directives A Double insulated Battery a TUV PRODUCT GS SERVICE ZS Inspected and licensed by TUN Product Services Safety Information Remove test leads from the meter before you open the battery door Inspect the test leads for damaged insulation or exposed metal Check the test leads for continuity Replace damaged test leads before you use the meter Do not use the meter if it operates abnormally Protection may be impaired When in doubt have the meter serviced Do not operate the meter around explosive gas vapor or dust Use only a single 9 V battery properly installed in the meter case to power the meter When servicing the meter use only specified replacement parts Caution To avoid possible damage to the meter or to the equipment under test follow these guidelines e Disconnect circuit power and discharge all high voltage capacitors before testing resistance continuity diodes or capacitance e Use the proper terminals function and range for your measurements e Before m
21. ing and blow the meter s fuse This can happen because the resistance through the meter s current terminals is very low so the meter acts like a short circuit Making Measurements The following sections describe how to take measurements with your meter 12 Measuring AC and DC Voltage Voltage is the difference in electrical potential between two points The polarity of ac alternating current voltage varies over time while the polarity of dc direct current voltage is constant over time The meter presents ac voltage values as rms root mean square readings The rms value is the equivalent dc voltage that would produce the same amount of heat in a resistance as the measured sinewave voltage Models 85 and 87 feature true rms readings which are accurate for other wave forms with no dc offset such as square waves triangle waves and staircase waves The meter s voltage ranges are 400 mV 4 V 40 V 400 V and 1000 V To select the 400 mV dc range turn the rotary switch to mV To measure ac or dc voltage set up and connect the meter as shown in Figure 2 Making Measurements The follovving are some tips for measuring voltage AC Voltage When you measure voltage the meter acts approximately like a 10 MQ 10 000 000 Q impedance in parallel with the circuit This loading effect can cause measurement errors in high impedance circuits In most cases the error is negligible 0 1 or less if the circuit impedance i
22. irm that the capacitor is discharged Capacitance is the ability of a component to store an electrical charge The unit of capacitance is the farad F Most capacitors are in the nanofarad to microfarad range Making Measurements The meter measures capacitance by charging the capacitor with a known current for a known period of time measuring the resulting voltage then calculating the capacitance The measurement takes about 1 second per range The capacitor charge can be up to 1 2 V The meter s capacitance ranges are 5 nF 0 05 uF 0 5 uF and 5 pF To measure capacitance set up the meter as shown in Figure 5 The following are some tips for measuring capacitance e To speed up measurements of similar values press RANGE to manually select the proper range e To improve the accuracy of measurements less than 5 nF use the relative REL mode to subtract the residual capacitance of the meter and leads iy10f eps Figure 5 Measuring Capacitance 19 80 Series III Users Manual e To estimate capacitance values above 5 uF use the current supplied by the meter s resistance function as follows 1 2 20 Set up the meter to measure resistance Press RANGE to select a range based on the value of capacitance you expect to measure refer to Table 6 Discharge the capacitor Place the meter s leads across the capacitor then time how long it takes for the display to reach OL Multiply the
23. isted in the specifications in Table 14 Measuring Frequency Frequency is the number of cycles a signal completes each second The meter measures the frequency of a voltage or current signal by counting the number of times the signal crosses a threshold level each second Table 7 summarizes the trigger levels and applications for measuring frequency using the various ranges of the meter s voltage and current functions To measure frequency connect the meter to the signal source then press C Hz Pressing switches the trigger slope between and as indicated by the symbol at the left side of the display refer to Figure 8 under Measuring Duty Cycle Pressing stops and starts the counter The meter autoranges to one of five frequency ranges 199 99 Hz 1999 9 Hz 19 999 kHz 199 99 kHz and greater than 200 kHz For frequencies below 10 Hz the display is updated at the frequency of the input Between 0 5 Hz and 0 3 Hz the display may be unstable Below 0 3 Hz the display shows 0 000 Hz Making Measurements The following are some tips for measuring frequency If a reading shows as 0 Hz or is unstable the input signal may be below or near the trigger level You can usually correct these problems by selecting a lower range which increases the sensitivity of the meter In the Y function the lower ranges also have lower trigger levels If a reading seems to be a multiple of what you expect the input signal
24. lative mode does not change the operation of the analog display Zoom Mode Models 83 and 85 Selecting relative mode on a Model 83 or 85 meter causes the bar graph to enter Zoom mode In zoom mode the center of the graph represents zero and the sensitivity of the bar graph increases by a factor of 10 Measured values more negative than the stored reference light segments to the left of center values more positive light segments to the right of center Maintenance Uses for the Zoom Mode Models 83 and 65 The relative mode combined with the increased sensitivity of the bar graph s zoom mode helps you make fast and accurate zero and peak adjustments For zero adjustments set the meter to the desired function short the test leads together press RELA then connect the leads to the circuit under test Adjust the circuit s variable component until the display reads zero Only the center segment on the Zoom bar graph is lit For peak adjustments set the meter to the desired function connect the leads to the circuit under test then press RELA The display reads zero As you adjust for a positive or negative peak the bar graph length increases to the right or left of zero If an overange symbol lights 4 gt press twice to set a new reference then continue with your adjustment Maintenance Repairs or servicing not covered in this manual should be performed only by qualified personnel as described in the 80 Seri
25. may be distorted Distortion can cause multiple triggerings of the frequency counter Selecting a higher voltage range might solve this problem by decreasing the sensitivity of the meter You can also try selecting a dc range which raises the trigger level In general the lowest frequency displayed is the correct one 25 80 Series III Users Manual Table 7 Functions and Trigger Levels for Frequency Measurements Approximate Function Range Trigger Level Typical Application 4V 40V 400V OV Most signals 1000 V 400 mV High frequency 5 V logic signals The dc coupling of the V function can attenuate high frequency logic signals reducing their amplitude enough to interfere with triggering 400 mV Refer to the measurement tips given before this table me Refer to the measurement tips given before this table Frequency counter characteristics are not specified for these functions o 49 Refer to the measurement tips given before this table em EE TRE 26 Measuring Duty Cycle Duty cycle or duty factor is the percentage of time a signal is above or below a trigger level during one cycle Figure 8 The duty cycle mode is optimized for measuring the on or off time of logic and switching signals Systems such as electronic fuel injection systems and switching power supplies are controlled by pulses of varying width which can be checked by measuring duty cycle To measure duty cycle set up the meter to
26. measure frequency then press Hz a second time As with the Slope Trigger Point 7 30 Above VW Trigger Point 70 Below Slope Slope 100 Making Measurements frequency function you can change the slope for the meter s counter by pressing I For 5 V logic signals use the 4 V dc range For 12 V switching signals in automobiles use the 40 V dc range For sine vvaves use the lovvest range that does not result in multiple triggering Normally a distortion free signal can be up to ten times the amplitude of the selected voltage range If a duty cycle reading is unstable press MIN MAX then scroll to the AVG average display iy3f eps Figure 8 Components of Duty Cycle Measurements 27 80 Series III Users Manual Determining Pulse Width For a periodic vvaveform its pattern repeats at equal time intervals you can determine the amount of time that the signal is high or low as follows 1 Measure the signal s frequency 2 Press a second time to measure the signal s duty cycle Press to select a measurement of the signal s positive or negative pulse Refer to Figure 8 3 Use the following formula to determine the pulse width Pulse Width 96 Duty Cycle 100 in seconds Frequency 28 Analog Bar Graph The analog bar graph functions like the needle on an analog meter but without the overshoot The bar graph is updated 40 times per second Because
27. ng the REL A function to compensate for offsets 44 Specifications Table 14 Current Function Specifications Accuracy Function Range Resolution Model 83 Model85 Model 873 Burden Voltage typical mA 40 00 mA 0 01 mA 1 2 2 8 1 0 2 8 1 0 2 1 8 mV mA A 400 0 mA 0 1 mA 1 2 2 1 0 2 1 0 2 1 8 mV mA 4000 mA 1 mA 1 2 2 1 0 2 1 0 2 0 03 V A 43M 10 2 kz 10 00 A5 0 01 A 1 290 2 8 1 0 2 1 0 2 0 03 V A mA A 40 00 mA 0 01 mA 0 4 4 0 2 4 0 2 4 1 8 mV mA 400 0 mA 0 1 mA 0 4 2 0 2 2 0 2 2 1 8 mV mA 4000 mA 4 mA 0 4 4 0 2 4 0 2 4 0 03 V A 10 00 A5 0 01 A 0 4 2 0 2 2 0 2 2 0 03 V A 1 See the first sentence in Table 11 for a complete explanation of accuracy 2 AC conversion for Model 83 is ac coupled and calibrated to the rms value of a sinewave input 3 AC conversions for Models 85 and 87 are ac coupled true rms responding and valid from 5 to 100 of range 4 See note 3 in Table 11 5 A 10 A continuous 20 A for 30 seconds maximum gt 10 A unspecified 6 Below a reading of 200 counts add 10 counts 45 80 Series III Users Manual Table 14 Current Function Specifications continued Accuracy Function Range Resolution Model 832 Model 85 4 Model 87 4 Burden Voltage typical uA 400 0 pA 0 1 uA 1 2
28. ossible damage to the meter or to the equipment under test disconnect circuit power and discharge all high voltage capacitors before measuring resistance Resistance is an opposition to current flow The unit of resistance is the ohm Q The meter measures resistance by sending a small current through the circuit Because this current flows through all possible paths between the probes the resistance reading represents the total resistance of all paths between the probes The meter s resistance ranges are 400 Q 4 RO 40 RO 400 RQ 4 MO and 40 MQ To measure resistance set up the meter as shovvn in Figure 4 16 The follovving are some tips for measuring resistance e Because the meter s test current flows through all possible paths between the probe tips the measured value of a resistor in a circuit is often different from the resistor s rated value e The test leads can add 0 1 to 0 2 Q of error to resistance measurements To test the leads touch the probe tips together and read the resistance of the leads If necessary you can use the relative REL mode to automatically subtract this value e The resistance function can produce enough voltage to forward bias silicon diode or transistor junctions causing them to conduct To avoid this do not use the 40 MA range for in circuit resistance measurements Making Measurements In Circuit Resistance Measurements ircuit Povver Figure 4 Measu
29. peak response times The 250 us response time is indicated by 1 ms on the display 30 The 100 millisecond response time is best for recording power supply surges inrush currents and finding intermittent failures This response time follows the update time of the analog display The high accuracy 1 second response time has the full accuracy of the meter and is best for recording power supply drift line voltage changes or circuit performance while line voltage temperature load or some other parameter is being changed The true average value AVG displayed in the 100 ms and 1 s modes is the mathematical integral of all readings taken since you started recording The average reading is useful for smoothing out unstable inputs calculating power consumption or estimating the percent of time a circuit is active MIN MAX Recording Mode Table 8 MIN MAX Functions Button MIN MAX MIN MAX While in MIN MAX mode PEAK MIN MAX HOLD MIN MAX hold for 1 second Hold down while turning the meter on MIN MAX Function Enter MIN MAX recording mode The meter is locked in the range displayed before you entered MIN MAX mode Select the desired measurement function and range before entering MIN MAX The meter beeps each time a new minimum or maximum value is recorded Scroll through minimum MIN maximum MAX and average AVG values Model 87 only Select 100 ms or 250 us response time
30. pecifications Model Nominal Response Accuracy 83 100 ms to 80 Specified accuracy 12 counts for changes gt 200 ms in duration 40 counts in ac with beeper on 1s Same as specified accuracy for changes gt 2 seconds in duration 40 counts in ac with beeper on 85 87 100 ms to 80 Specified accuracy 12 counts for changes gt 200 ms in duration DC functions 120 ms to 80 AC functions Specified accuracy 40 counts for changes gt 350 ms and inputs gt 25 of range 1s Same as specified accuracy for changes gt 2 seconds in duration 250 us Model 87 only Specified accuracy 100 counts for changes gt 250 us in duration 250 digits typical for mV 400 uA dc 40 mA de 4000 mA dc 50
31. present input is less than the stored reference 5 The battery is low A Warning To avoid false readings which could lead to possible electric shock or personal injury replace the battery as soon as the battery indicator appears 6 AUTO The meter is in autorange mode and automatically selects the range with the NA an rms root mean square value MAX MIN AVG 8 HOLD Touch Hold is active AC DC Indicator for ac or dc voltage or current AC voltage and current is displayed as 80 Series III Users Manual Table 5 Display Features continued 10 Number Feature O MO KQ Hz kHz MHz Indication Page A Amperes amps The unit of current uA Microamp 1 x 108 or 0 000001 amperes mA Milliamp 1 x 103 or 0 001 amperes pre mM V Volts The unit of voltage mV Millivolt 1 x 103 or 0 001 volts Ss F Farad The unit of capacitance uF Microfarad 1 x 108 or 0 000001 farads nF Nanofarad 1 x 109 or 0 000000001 farads y S Siemen The unit of conductance nS Nanosiemen 1 x 102 or 0 000000001 siemens Percent Used for duty cycle measurements Q Ohm The unit of resistance MQ Megohm 1 x 108 or 1 000 000 ohms RO Kilohm 1 x 103 or 1000 ohms Hz Hertz The unit of frequency kHz Kilohertz 1 x 103 or 1000 hertz MHz Megahertz 1 x 108 or 1 000 000 hertz Your Meter s Features Table 5 Display Features continued Numb
32. ring Resistance Isolating a Potentiometer Isolating a Resistor iy6f eps 17 80 Series Ill Users Manual Using Conductance for High Resistance or Leakage Tests Conductance the inverse of resistance is the ability of a circuit to pass current High values of conductance correspond to low values of resistance The unit of conductance is the Siemen S The meter s 40 nS range measures conductance in nanosiemens 1 nS 0 000000001 Siemens Because such small amounts of conductance correspond to extremely high resistance the nS range lets you determine the resistance of components up to 100 000 MA or 100 000 000 000 Q 1 1 nS 1 000 MQ To measure conductance set up the meter as shown for measuring resistance Figure 4 then press until the nS indicator appears on the display 18 The following are some tips for measuring conductance e High resistance readings are susceptible to electrical noise To smooth out most noisy readings enter the MIN MAX recording mode then scroll to the average AVG reading e There is normally a residual conductance reading with the test leads open To ensure accurate readings use the relative REL mode to subtract the residual value Measuring Capacitance Caution To avoid possible damage to the meter or to the equipment under test disconnect circuit power and discharge all high voltage capacitors before measuring capacitance Use the dc voltage function to conf
33. roduce a forward bias reading of 0 5 V to 0 8 V however the reverse bias reading can vary depending on the resistance of other pathways between the probe tips Forward Bias iy9f eps Figure 6 Testing a Diode 21 80 Series Ill Users Manual Measuring AC or DC Current AWarning Never attempt an in circuit current measurement where the open circuit potential to earth is greater than 1000 V You may damage the meter or be injured if the fuse blows during such a measurement Caution To avoid possible damage to the meter or to the equipment under test check the meter s fuses before measuring current Use the proper terminals function and range for your measurement Never place the probes across in parallel with any circuit or component when the leads are plugged into the current terminals Current is the flow of electrons through a conductor To measure current you must break the circuit under test then place the meter in series with the circuit 22 The meter s current ranges are 400 uA 4000 uA 40 mA 400 mA 4000 mA and 10 A AC current is displayed as an rms value To measure current refer to Figure 7 and proceed as follows 1 Turn off power to the circuit Discharge all high voltage capacitors Insert the black lead into the COM terminal For currents between 4 mA and 400 mA insert the red lead into the mA uA terminal For currents above 400 mA insert the red lead into the A terminal
34. s 10 kQ 10 000 42 or less For better accuracy when measuring the dc offset of an ac voltage measure the ac voltage first Note the ac voltage range then manually select a de voltage range equal to or higher than the ac range This procedure improves the accuracy of the dc DC Voltage measurement by ensuring that the input protection circuits are not activated Switch Box iy2f eps Figure 2 Measuring AC and DC Voltage 13 80 Series Ill Users Manual Testing for Continuity Caution To avoid possible damage to the meter or to the equipment under test disconnect circuit power and discharge all high voltage capacitors before testing for continuity Continuity is the presence of a complete path for current flow The continuity test features a beeper that sounds if a circuit is complete The beeper allows you to perform quick continuity tests without having to watch the display To test for continuity set up the meter as shown in Figure 3 Press m to turn the continuity beeper on or off 14 The continuity function detects intermittent opens and shorts lasting as little as 1 millisecond 0 001 second These brief contacts cause the meter to emit a short beep Making Measurements For in circuit tests turn circuit povver Off Gy Activates continuity closed iy4f eps Figure 3 Testing for Continuity 15 80 Series III Users Manual Measuring Resistance Caution To avoid p
35. t Mode Model 87 On a Model 87 meter pressing the yellow button for one second causes the meter to enter the high resolution 4 1 2 digit mode Readings are displayed at 10 times the normal resolution with a maximum display of 19 999 counts The display is updated once per second The 4 1 2 digit mode works in all modes except capacitance and the 250 us and 100 ms MIN MAX modes To return to the 3 1 2 digit mode press the yellow button only until all of the display segments turn on about one secona 29 80 Series III Users Manual MIN MAX Recording Mode The MIN MAX mode records minimum and maximum input values When the inputs go below the recorded minimum value or above the recorded maximum value the meter beeps and records the new value This mode can be used to capture intermittent readings record maximum readings while you are away or record readings while you are operating the equipment under test and cannot watch the meter MIN MAX mode can also calculate an average of all readings taken since the MIN MAX mode was activated To use MIN MAX mode refer to the functions in Table 8 Response time is the length of time an input must stay at a new value to be recorded A shorter response time captures shorter events but with decreased accuracy Changing the response time erases all recorded readings Models 83 and 85 have 100 millisecond and 1 second response times Model 87 has 1 second 100 millisecond and 250 us
36. the graph responds 10 times faster than the digital display it is useful for making peak and null adjustments and observing rapidly changing inputs Model 87 Bar Graph Model 87 s bar graph consists of 32 segments The position of the pointer on the display represents the last three digits of the digital display For example for inputs of 500 Q 1500 O and 2500 9 the pointer is near 0 5 on the scale If the last three digits are 999 the pointer is at the far right of the scale As the digits increment past 000 the pointer wraps back to the left side of the display The polarity indicator at the left of the graph indicates the polarity of the input 4 1 2 Digit Mode Model 87 Models 83 and 85 Bar Graph The bar graph on Models 83 and 85 consists of 43 segments The number of lit segments is relative to the full scale value of the selected range The polarity indicator at the left of the graph indicates the polarity of the input For example if the 40 V range is selected the 4 on the scale represents 40 V An input of 30 V would light the negative sign and the segments up to the 3 on the scale If the input equals or exceeds the 4096 counts on a manually selected range all segments are lit and gt appears to the right of the bar graph The graph does not operate with the capacitance or frequency counter functions The bar graph on Models 83 and 85 also has a zoom function as described under Zoom Mode 4 1 2 Digi
37. the three screws and the battery door Secure the door by turning the screws one quarter turn clockwise Service and Parts If the meter fails check the battery and fuses Review this manual to verify proper use of the meter Replacement parts and accessories are shown in Tables 9 and 10 and Figure 11 To contact Fluke call one of the following telephone numbers USA 1 888 99 FLUKE 1 888 993 5853 Canada 1 800 36 FLUKE 1 800 363 5853 Europe 31 402 678 200 Japan 81 3 3434 0181 Singapore 65 738 5655 Anywhere in the world 1 425 356 5500 Or visit Fluke s Web site at www fluke com Service and Parts Figure 10 Battery and Fuse Replacement 37 80 Series III Users Manual Table 9 Replacement Parts Item BT1 FH A F2 A H1 MP1 MP2 TM1 TM2 TM3 TM4 Description Battery 9 V Fuse 0 440 A 1000 V FAST Fuse 11 A 1000 V FAST Screw Case Foot Non Skid O Ring Input Receptacle CD ROM contains Users Manual Getting Started Manual Quick Reference Guide Fluke 80 Series III Service Manual A To ensure safety use exact replacement only Fluke Part or Model Number 614487 943121 803293 832246 824466 831933 1611720 1611712 688168 688645 Quantity 1 1 1 3 2 1 1 1 1 Optional 38 Service and Parts TL75 Test Lead Set AC20 Alligator Clip Black AC70A Alligator Clips E A TM1 iy11f
38. tion Fluke Europe B V P O Box 9090 P O Box 1186 Everett WA 5602 B D Eindhoven 2 02 98206 9090 The Netherlands Table of Contents Title Page INTOUCUION TTT Safety Information Your Meters Features ner rete EES NEES irte Power Up Options AEN Automatic Power EE Input Alert Feature m Making Measurements ccccccccceseeeeeeeeeeeeseeeeeeeseeeeeneeeeeeneceeeeeaaeeeeesenseeseseeeeeteeeeenens Measuring AC and DC Voltage nennen nene Testing for Conil vcd Pb ie utet n rea bai Measuring Resistance eeeeeeeeeseseeeeeeeeeeee rre Using Conductance for High Resistance or Leakage Tests Measuring Capacitance sssssssesseseeeneeneee nennen enne nnne n nnne nnne nnns Testing Diodes Measuring AC or DC Cumrent neen Measuring Frequency A Measuring Duty Cwcle AA Determining Pulse Width cceeseeeeeeseeceeeseeceeeeseeeeeeseneeeeseesenseseeneseseneeeneneeeeseseees 80 Series III Users Manual Analog Bar Graphie Model 87 Bar Ee EE Models 83 and 85 Bar Graphie 4 1 2 Digit Mode Model 87 MIN MAX Regording Mode c teilen Re ele ege Relative EE Zoom Mode Models 83 and op Uses for the Zoom Mode Models 83 and 85 A TERRE General Maintenance Testing EH Replacing the Battery AA Replacing hin Service ANG PariS EE leet le TE List of Tables Table Title Page 1 International Electrical
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