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1. g Accuracy Function Range Resolution 20 to 45 Hz 45to65Hz 65Hzto10kHz 10to20kHz 20 to 100 kHz AC mV 50 mv 0 001 mV 1 5 60 0 3 25 0 4 25 0 7 40 3 5 402 500 mv 0 01 mV 1 5 60 0 3 25 0 4 25 0 7 40 3 5 40 ACV 5y 0 0001 V 1 5 60 0 3 25 0 6 25 1 5 40 3 5 40 50 v 0 001 V 1 5 60 0 3 25 0 4 25 0 7 40 3 5 40 500 Vv 0 01 V 1 5 60 0 3 25 0 4 25 Not Spec d Not Spec d 1000 V DIV 1 5 60 0 3 25 0 4 25 Not Spec d Not Spec d dBV 70 to 62 dB 0 01 dB 3 dB 1 5 dB 2 dB 2 dB 3 dB 62 to 52 dB Y 0 01 dB 1 5 dB 1 0 dB 1dB 1 dB 2 dB 52 to 6 dB Y 0 01 dB 0 2 dB 0 1 dB 0 1 dB 0 2 dB 0 8 dB 6 to 34 dB 0 01 dB 0 2 dB 0 1 dB 0 1 dB 0 2 dB 0 8 dB 34 to60dB 0 01 dB 0 2 dB 0 1 dB 0 1 dB Not Spec d Not Spec d bow hase illar 2 80 2 40 eyo un NotSpecd Not Spec d 6 60 KS N 1000 V DIV 2 80 2 40 2 40 Not Spec d Not Spec d 1 Below 5 of range add 20 counts 2 Specification increases linearly from 2 at 200 Hz to 6 at 440 Hz Range is limited to 440 Hz DI dBm 600 Q is specified by adding 2 2 dB to the dBV range values 4 289 only 5 Add 2 5 above 65 kHz 6 Range is limited to 440 Hz See Detailed Specifications introduction for additional information 68 AC Current Specifications True rms Digital Multimeters Detailed Specifications
2. Accuracy Function Range Resolution a 20 to 45 Hz 45 to 1 kHz 1to20kHz 20 to 100 kHz AC pA 500 pA 0 01 uA 1 20 0 6 20 0 6 20 5 40 5000 pA 0 1 uA 1 5 0 6 5 0 6 10 5 A0 AC mA l 50 mA 0 001 mA 1 20 0 6 20 0 6 20 5 40 400 mA 0 01 mA 1 5 0 6 5 1 5 10 5 40 ACA 5A 0 0001 A 1 5 20 0 8 20 3 40 Not Spec d 10A 0 001 A 15 5 0 8 5 3 10 Not Spec d 1 10 A range 10 to 100 of range 2 20 A for 30 seconds on 10 minutes off gt 10 A not specified 3 400 mA continuous 550 mA for 2 minutes on 1 minute off 4 Verified by design and type tests See Detailed Specifications introduction for additional information 69 287 289 Users Manual DC Voltage Specification Accuracy Function Range Resolution pe AC over DC DC over AC AC DC 20to45Hz 45Hzto1kHz 1 to 20 kHz 20 to 35 kHz DC mV 50 mv l 0 001 mV 0 05 20 1 5 40 5 40 500 mV 0 01 mV 0 025 2 Pl 1 5 40 5 40 pcv 5V 0 0001 V 0 025 2 1 5 40 5 40 2 80 0 5 80 50 V 0 001 V 0 025 2 1 5 40 5 40 500 V 0 01 V 0 03 2 Not Spec d Not Spec d 1000 V 0 1V 0 03 2 Not Spec d Not Spec d Loz D 1000 V 0 1V 1 20 Not Spec d Not Spec d Not Spec d Not Spec d 1 Add 20 counts in dual display ac over dc dc over ac or ac dc 2 AC DC ranges are specified from
3. Length duration of time recording session was in progress Number of event records detected Reference value for relative me asurements Number of interval records detected True rms Digital Multimeters Using Communications Using Communications You can use the IR communication link and FlukeView Forms software to transfer the contents of a meter s memory to a PC When using a PC to meter IR infrared communication link refer to the FlukeView Forms Installation Guide or the on line help Note The Meter will log in real time mode to a connected computer running FlukeView Forms In addition the Meter allows the user to log to internal memory and connect to the computer later for download Fluke View Forms allows you to place the data into standard default or customized forms The forms display the data in table and graph form as well as show user comments You can use these forms to satisfy ISO 9000 and other documentation requirements 55 287 289 Users Manual Error Messages Table 10 list some of the error messages the Meter may display and the conditions that may be causing the error Table 10 Error Messages Leads connected incorrectly Lead in A or mA pA jack but rotary switch not in corresponding A mA or yA position Leads in both A and mA pA jacks Rotary switch set to measure current but no lead in either A or mA uA jack Open Thermocouple Thermocouple wire is open or thermocouple junct
4. To improve measurement accuracy of small value capacitors press Menu and move the menu selector to the menu item labeled REL With the test leads open press the softkey labeled REL to subtract the residual capacitance of the Meter and leads Testing Diodes A 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 diodes Use the diode test to check diodes transistors silicon controlled rectifiers SCRs and other semiconductor devices The test 36 sends a current through a semiconductor junction and then measures the junction s voltage drop A typical junction drops 0 5 V to 0 8 V To test a diode out of a circuit position the rotary switch to A and set up the meter as shown in Figure 20 If the display doesn t already indicate the Meter is in the Diode Test function press the softkey labeled Menu Next move the menu selector to the menu item labeled Diode Cap and press the softkey labeled Diode If the beeper is enabled during diode test it will beep briefly for a normal junction and sound continuously for a shorted junction below 0 1 V See the Disabling and Enabling the Beeper section to disable the beeper In a circuit a similar diode should still indicate a forward bias reading of 0 5 V to 0 8 V however the reading can vary depending on the resistance of other pathways between the probe tips
5. 18 C to 28 C 64 F to 82 F with relative humidity to 90 Accuracy specifications are given as of reading number of least significant digits Accuracy specification assumes ambient temperature stable at 1 C For ambient temperature changes of 5 C rated accuracy applies after 2 hours To obtain full accuracy in DC mV Temperature Ohms and Lo 50 Ohms let the meter stabilize 20 minutes after using LoZ True rms AC mV AC V AC pA AC mA and AC A specifications are ac coupled true rms and are specified from 2 of range to 100 of range except 10 A range is specified from 10 to 100 of range Crest Factor Accuracy is specified with AC crest factor lt 3 0 at full scale increasing linearly to 5 0 at half scale except the 1000 V range where it is 1 5 at full scale increasing linearly to 3 0 at half scale and 500 mV and 5000 uA where it is lt 3 0 at 80 of full scale increasing linearly to 5 0 at half scale For non sinusoidal waveforms add 0 3 of range and 0 1 of reading AC Floor When the input leads are shorted together in the ac functions the Meter may display a residual reading up to 200 counts A 200 count residual reading will cause only a 20 count change for readings at 2 of range Using REL to offset this reading may produce a much larger constant error in later measurements AC DC AC DC is defined as Vac de 67 287 289 Users Manual AC Voltage Specifications
6. 2 to 140 of range except 1000 V is specified from 2 to 100 of range DI When using the relative mode REL A to compensate for offsets 4 Add 4 counts 10 mV AC in dual display ac over dc dc over ac or ac de 5 Add 10 counts 100 mV AC in dual display ac over dc dc over ac or ac dc 70 True rms Digital Multimeters Detailed Specifications DC Current Specifications Accuracy Function Range Resolution pelt AC over DC DC over AC AC DC 20to45Hz 45Hzto1kHz 1to20kHz 20 to 100 kHz DC pA 500 pA 0 01 uA 0 075 20 1 20 0 6 20 0 6 20 5 40 5000 uA 0 1 uA 0 075 2 1 5 0 6 5 0 6 10 5 40 DC mA 4 50 mA 0 001 mA 0 05 10 1 20 0 6 20 0 6 20 5 40 400 mA 0 01 mA 0 15 2 1 5 0 6 5 15 10 5 40 DCA 5A 0 0001 A 0 3 10 1 5 20 0 8 20 3 40 Not Spec d 10A 0 001 A 0 3 2 1 5 10 0 8 10 3 10 Not Spec d 1 AC DC ranges are specified from 2 to 140 of range 2 20 A for 30 seconds on 10 minutes off gt 10 A not specified 3 Add 20 counts in dual display ac over dc dc over ac or ac dc 4 400 mA continuous 550 mA for 2 minutes on 1 minute off 5 Verified by design and type tests 6 Temperature coefficient 0 1 X specified accuracy C lt 18 C or gt 28 C 71 287 289 Users Manual Resistance Specifications Function Ran
7. Resolution Accuracy Frequency 99 999 Hz 0 001 Hz 0 02 5 0 5 Hz to 999 99 kHz pulse 999 99 Hz 0 01 Hz 0 005 5 width gt 0 5 us 9 9999 kHz 0 0001 kHz 0 005 5 99 999 kHz 0 001 kHz 0 005 5 999 99 kHz 0 01 kHz 0 005 5 Duty Cycle TP 1 00 to 99 00 0 01 0 2 per kHz 0 1 Pulse Width l 0 1000 ms 0 0001 ms 0 002 ms 3 counts 1 000 ms 0 001 ms 0 002 ms 3 counts 10 00 ms 0 01 ms 0 002 ms 3 counts 1999 9 ms 0 1 ms 0 002 ms 3 counts 1 For rise times lt 1 us Signals centered around trigger levels 2 0 5 to 200 kHz pulse width gt 2 us Pulse width range is determined by the frequency of the signal 74 Frequency Counter Sensitivity True rms Digital Multimeters Detailed Specifications Approximate Voltage Sensitivity Input Range rms sine wave DI AC Bandwidth EI Ee DC Bandwidth 2 15 Hz to 100 kHz id 50 mV 5 mV 1 MHz 5 mV amp 20 mV 600 kHz 500 mV 25 mV 1 MHz 20 mV 8 60 mV 1 MHz 5V 0 25 V 700 kHz 14V amp 2 0V 80 kHz 50 V 25V 1 MHz 05V amp 65V 1 MHz 500 V 25 V 300 kHz 5V 840 V 300 kHz 1000 V 50 V 300 kHz 5 V 8 100 V 300 kHz Approximate Current Sensitivit S R Input Range g rms sine wave S AC Bandwidth EE Trigger DC Bandwidth 15 Hz to 10 kHz 500 pA 25 HA 100 kHz 5000 pA 250 uA 100 kHz 50 mA 2 5 mA 100 kHz M NE 400 mA 25 mA 100 kHz 5A 0 25 A 100 kHz 10A LOA 100 kHz 1 Maximum input 10 x range 1000 V maxi
8. VAC 06 13 07 gu REL A HOLD Et Geer Dame TE as AutoHOLD Save Setup est01 eps Figure 2 Display Features True rms Digital Multimeters Features Table 3 Display Features Softkey labels Indicates the function of the button just below the displayed label Bar graph Analog display of the input signal See the Bar Graph section for more information Relative Indicates the displayed value is relative to a reference value Indicates a negative reading Lightning bolt Indicates hazardous voltage present at the Meter s input Remote Indicates activity over the communication communication link Battery level Indicates the charge level of the six AA batteries Time Indicates the time set in the internal clock Mode Indicates the Meter s mode annunciators 287 289 Users Manual Table 3 Display Features cont Displays the lightning bolt when necessary and the input value when the primary and secondary displays are covered by a menu or pop up message Date Indicates the date set in the internal clock 42 Beeper Indicates the Meter s beeper is enabled not associated with the continuity beeper measurement units Indicates the units of measure the Indicates the units of measure of measure Auxiliary Units Indicates unitless measurements like Crest Factor Range indicator Indicates the range the Meter is in
9. allowed In addition to these modes MIN MAX relative and relative are not allowed in AC DC or DC AC modes Note The bar graph is not displayed while the Meter is in any of the three AC DC modes DC over AC AC DC 06 13 07 H dl 8 10pm 06 13 07 H 125 66 23 45 VDC Setup est30 eps Figure 13 AC and DC Display Both manual and autoranging is available when using the ac dc modes The same range is used for both ac and dc signals 26 However while in autorange up ranging occurs when either the ac or dc signal exceeds the present range Down ranging occurs only when both the ac and dc signals drop below 10 of the present range For AC DC ranging is controlled by the underlying values of the ac and dc signals and not by the sum of the AC DC calculation To exit the AC DC mode press the softkey labeled Menu and select the default mode for the selected function For dc volts and dc millivolts functions move the menu selector to VDC and press the softkey labeled VDC For the current functions move the menu selector to the AC DC menu item and press either the AC or DC softkey True rms Digital Multimeters Making Measurements 27 287 289 Users Manual Measuring Temperature AA Warning To avoid the potential for fire or electric shock do not connect the thermocouple to electrically live circuits The Meter uses an 80BK A Integrated DMM Temperature Probe or other type K temperature pro
10. and the ranging mode auto or manual Secondary display Displays secondary measurement information about the input signal Bar Graph The analog bar graph functions like the needle on an analog meter but without the overshoot The bar graph updates 30 times per second Because the graph updates faster than the digital display it is useful for making peak and null adjustments and observing rapidly changing inputs For frequency duty cycle pulse width dBm and crest factor functions the bar graph represents the amplitude of the input signal volts or amps and not the value in the primary display The bar graph is not shown for capacitance temperature LoZ AC DC AC over DC peak or min max functions For dc voltage dc current and all relative percent modes a zero centered bar graph is displayed For dc voltage and current the bar graph range is the maximum of the selected range For relative percent mode the bar graph goes to 10 The number of lit segments indicates the measured value and is relative to the full scale value of the selected range In the 50 Vac range for example the major divisions on the scale represent 0 5 10 15 20 25 30 35 40 45 and 50 Vac An input of 25 Vac turns on segments up to the middle of the scale For off scale values gt appears to the right of the normal bar graph For the zero center bar graph a 4 appears at the left end of the bar graph for negative off scale values an
11. and the softkey labeled Menu is therefore disabled as well Making dB Measurements The Meter is capable of displaying voltage as a dB value either relative to 1 milliwatt dBm a reference voltage of 1 volt dBV or a user selectable reference value See the Setting a Custom dBm Reference section later in this manual True rms Digital Multimeters Making Measurements 41 83 Auto Range 500 VAC Werer 123 45 VAC 1000 Reference Menu Save Ref Setup est08 eps Figure 11 dBm Display To set the Meter to display values in dBm set the rotary switch to Y or mv and press the softkey labeled Menu Move the menu selector to the menu item labeled dBm Press the softkey labeled dBm The dBm Hz menu selection replaces the secondary display 123 45 VAC in Figure 11 with the frequency measurement All voltage measurements are displayed as a dBm value as shown in Figure 11 A dBm measurement must use a reference impedance resistance to calculate a dB value based on 1 milliwatt When set to 600 Q default the reference impedance is not displayed during a dBm measurement When set to something other than 600 Q the reference impedance is displayed just above the softkey labels 23 287 289 Users Manual To select another reference value press the softkey labeled Ref to display a message box with the current reference value Pressing or Y scrolls through the nine predefined references 4 8 16 25 32 50
12. as a stopped peak records Therefore use the elapsed time average value time stamp to identify one record from another To extend battery life during peak record the Meter enters a battery saver mode after a period of time set for the Auto Off feature See the Setting Backlight and Auto Off Timeouts section for more information on the battery saver mode True rms Digital Multimeters Capturing Peak Values 19 287 289 Users Manual Low Pass Filter Model 289 only The Meter is equipped with an ac low pass filter When measuring ac voltage or Vac frequency press the softkey labeled Menu to open the function menu and move the menu selector to the item Next press the softkey labeled to toggle the low pass filter mode on MEN displayed and off A AWarning To avoid possible electric shock or personal injury do not use the Low Pass Filter option to verify the presence of hazardous voltages Voltages greater than what is indicated may be present First make a voltage measurement without the filter to detect the possible presence of hazardous voltage Then select the filter function The Meter continues measuring in the chosen ac mode but now the signal passes through a filter that blocks unwanted voltages above 1 kHz as shown in Figure 8 The low pass filter can improve measurement performance on composite sine waves that are typically generated by inverters and variable frequency motor drives Note In Low Pa
13. display Therefore the continuity function uses a graphical indicator for the presence or absence of continuity Figure 16 shows the short and open continuity indication Short Open A AA est36 eps Figure 16 Continuity Indicator To perform a continuity test position the rotary switch to ang and set up the Meter as shown in Figure 17 Press the softkey labeled In continuity a short means a measured value less than 8 of full scale for the 500 Q range and less that 4 for other resistance ranges Note The Meter operates in manual range only while the continuity function is selected 31 287 289 Users Manual For in circuit tests turn circuit power off Beep on short Beep on open FLUKE 289 TRUE nus MULTIMETER FLUKE 289 TRUE RMS MULTIMETER now q Cy 0 Rance fom Y DU Ge wi 7 mvi o E o o ON closed ON X closed Figure 17 Continuity Testing est13 eps 32 To change whether the beeper sounds on shorts or opens press the softkey labeled Menu Move the menu selector to the menu item labeled Beeper and press the softkey labeled Short O This beeper selection Beep on Short or Beep on Open is displayed just above the continuity indicator The continuity beeper is always enabled when continuity mode if first entered To enable or disable the beeper for continuity pres
14. half to reveal more details Each press of doubles the time period until all the recorded data is displayed The zoom level is displayed in the upper right hand corner of the display X1 indicates the trend of the complete recording period is displayed X2 is one half the recording time X3 is one fourth the recoring time This magnification can continue until the x axis time period is one second Deleting Stored Measurement Data Deleting data stored in the Meter s memory is performed through the save menu Press the softkey labeled Save Use the softkey labeled Prev and Next to select an item for deletion The Meter separates stored data into four different categories Measurement MIN MAX Peak and Recording Use the cursor buttons to position the menu selector next to a saved data category and then press the softkey labeled View to view the item Pressing the softkey labeled Delete All will delete all stored data under the selected saved data category Or press the softkey labeled View After accepting a confirmation message use the 51 287 289 Users Manual softkeys labeled Prev and Next to select an item for deletion Next press the softkey labeled Delete A message asking to confirm the deletion will appear before anything is deleted from memory Recording Measurement Data The Meter s record feature collects measurement information over a user specified duration This collection of information is called a recording se
15. indicated may be present First make a voltage measurement without the filter to detect the possible presence of hazardous voltage Then select the filter function Only use test leads that have the same voltage category and amperage ratings as the meter and that have been approved by a safety agency Use proper protective equipment as required by local or national authorities when working in hazardous areas Comply with local and national safety requirements when working in hazardous locations A Caution To avoid possible damage to the Meter or to the equipment under test follow these guidelines Disconnect circuit power and discharge all high voltage capacitors before testing resistance continuity diodes or capacitance Use the proper terminals function and range for all measurements True rms Digital Multimeters Hazardous Voltage Do not remove batteries while the Meter is turned on or a signal is applied to the Meter s input jacks D Before measuring current check the Meiers fuses See Testing the Fuses in the Users Manual on the accompanying CD Do not use the LoZ mode to measure voltages in circuits that could be damaged by this mode s low impedance 3 kQ Model 289 only Hazardous Voltage To alert you to the presence of a potentially hazardous voltage when the Meter detects a voltage gt 30 V or a voltage overload OL the 4 symbol is displayed 287 289 Users Manual Symbo
16. recorder See the Recording Measurement Data section later in this manual for an explanation of interval and event data After selecting the recording category described in the Viewing Memory Data section above and pressing View the recording session s summary screen is displayed See Table 9 Press the softkey labeled Trend to display the recorded data in a trend plot view Table 7 shows the trend view along with a description of each of its components To look at data stored in the individual records that make up the trend move the cursor to any point along the plot by pressing or The value and timestamp of the minimum maximum and end of record values of the selected record are displayed at the bottom of the cursor All data contained in a record can only be viewed on a PC running FlukeView Forms True rms Digital Multimeters Using Memory Note X axis time labels are shown in elapsed time while the timestamp shown under the cursor is an absolute time Table 7 Trend Data Display Description Start date and time Trend line Zoom level Elapsed time Units in hours and minutes or minutes and seconds Time scale legend HH MM or MM SS Measured value and timestamp of selected record Zooming in on Trend Data While viewing trend data pressing or zooms in or out respectively on the data around the cursor Each press of reduces the x axis time period by one
17. store the MIN MAX screen data MIN MAX can not be continued at this point Press the softkey labeled Close to exit the MIN MAX mode Pressing the softkey labeled Restart while MIN MAX is running stops the MIN MAX session discards all MIN MAX data and immediately starts a new MIN MAX recording session Capturing Peak Values Peak record is almost the same as MIN MAX record explained earlier in this manual The significant difference between the two recording functions is the shorter response time for peak recording 250 us With this short response time the actual peak values of a sinusoidal signal are measurable Transients are more accurately measured using the peak record feature To activate the peak mode press the softkey labeled Menu Move the menu selector next to the menu item labeled Peak CF or Peak Press the softkey labeled Peak to start the peak recording session 18 06 07 07 TN 119 8 Y Auto Range 500 VAC Peak Max 1 68 2 R 00 03 17 Average 1 18 9 01 10 59 Peak Min 173 9 A 01 10 09 Start 06 07 07 7 00 pm SR RRE est43 eps Figure 7 Peak Record Display As shown in Figure 7 the primary display shows the live measurement present on the Meter s inputs In the secondary area of the display the maximum and minimum peak values as well as the average value are shown along with their respective time stamps The time stamp next to the average value indicates the elapsed time of the
18. to the circuit Discharge all high voltage capacitors 38 Insert the black lead into the COM terminal Insert the red lead in an input appropriate for the measurement range Note To avoid blowing the Meter s 440 mA fuse use the mA uA terminal only if you are sure the current is less than 400 mA If you are using the A terminal set the rotary switch to Aa If you are using the mA uA terminal set the rotary switch to pA for currents below 5000 pA 5 mA or Aa for currents above 5000 uA See Figure 21 for test lead connections and function selection Refer to the Input Alert Feature section for information on the alerts the Meter uses when leads are not used correctly for current measurements As shown in Figure 22 open the circuit path to be tested Touch the red probe to the more positive side of the break touch the black probe to the more negative 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 measurement 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 Note While in a current measurement function the Meter will stay in the selected AC or DC current measurement mode when switching between An and m Whenever switched to one of the cur
19. 100 pE gt 60 dB dc to 60 Hz ac coupled ER Not specified Not specified ac coupled Overload Open Circuit Full Scale Voltage Typical Short Circuit Current Protection Test Voltage To 500 kQ 25 MA or 50 ns 5002 5kQ 50ko 500 ko 50 MQ 500 MQ 21 20 V decreasing 1000 V to 2 5 V 500 mV 10 mA SAV de mA 1 Input is limited to the product of a V rms sinewave times frequency of 2 x 10 V Hz 2 For circuits lt 0 5 A short circuit 660V for high energy circuits 77 287 289 Users Manual Burden Voltage A mA 4A Function Range Burden Voltage mA uA 500 uA 102 uV uA 5000 uA 102 uV uA 50 000 mA 1 8 mV mA 400 00 mA 1 8 mV mA A 5 0000 A 0 04 V A 10 000 A 0 04 V A 78
20. 1000 V FAST Interrupt rating 10 kA 1 943121 19 Z Fuse F2 11 A 1000 V FAST Interrupt rating 20 kA 1 803293 20 Battery 1 5 V NEDA 15C 15F or IEC R6S 6 376756 21 Battery Door Assembly includes tilt bail 1 2824477 22 Screw Phillips 7 853668 23 TL71 Right Angle Test Lead Set 1 TL71 24 Alligator Clips one black and one red 2 pene e 25 Manual Manual Pack Fluke 287 289 1 2748851 26 287 289 Users Manual CD 1 2748872 AA To ensure safety use exact replacement only 1 The Users and Getting Started manuals are available through www Fluke com Click on Support and then Product Manuals 63 Users Manual 287 289 est40 eps Figure 31 Replaceable Parts 64 True rms Digital Multimeters Service and Parts Table 12 Accessories Je CS TL76 4 mm Diameter Test Leads TL220 Industrial Test Lead Set TL224 Test Lead Set Heat Resistant Silicone TP1 Test Probes Flat Blade Slim Reach TP4 Test Probes 4 mm diameter Slim Reach Fluke accessories are available from an authorized Fluke distributor 65 287 289 Users Manual General Specifications Maximum voltage between any Terminal and Earth Ground 1000 V A Fuse Protection for mA or pA inputs 0 44 A 44 100 A 440 mA 1000 V FAST Fuse Fluke specified part only A Fuse Protection for A imput 11 A 1000 V FAST Fuse Fluke specified part only Battery Type eet ete acti 6 AA Alkaline batteries NEDA 15A
21. 31 402 675 200 Japan 81 3 3434 0181 Singapore 65 738 5655 Anywhere in the world 1 425 446 5500 Visit Fluke s web site at www fluke com Register your Meter at http register fluke com To view print or download the latest manual supplement visit http us fluke com usen support manuals Safety Information The Meter complies with e ANSI ISA 82 02 01 61010 1 2004 e UL 61010B 2003 e CAN CSA C22 2 No 61010 1 04 IEC EN 61010 1 2 Edition Pollution Degree 2 e EMC EN 61326 1 Measurement Category III 1000V Pollution Degree 2 Measurement Category IV 600 V Pollution Degree 2 In this manual 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 A AWarning To avoid possible electric shock or personal injury follow these guidelines Use this Meter only as specified in this manual or the protection provided by the Meter might be impaired 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 Users Manual Make sure the battery door is closed and latched before operating the Meter Remove test leads from the Meter before opening the battery door Inspect the test leads for damaged
22. 75 600 and 1000 Set the reference by pressing the softkey labeled OK To add a custom reference impedance see the Setting a Custom dBm Reference section later in this manual A dBV measurement uses a 1 volt reference voltage to compare the present measurement against The difference between the two ac signals is displayed as a dBV value The reference impedance setting is not part of a dBV measurement To make a dBV measurement position the rotary switch to y or mv and place the Meter leads on the voltage to be measured Next press the softkey labeled Menu Move the menu selector to the menu item labeled dBV and press the softkey labeled dBV The Meter displays the voltage in dBV To exit the dBV or dBm function press the softkey labeled Menu followed by the softkey labeled dBV or dBm respectively Selecting one of the other modifiers such as ms or CF also cancels dBV or dBm 24 Measuring DC Voltage The Meter displays dc volts values as well as their polarity The bar graph for dc voltage measurements is a zero centered bar graph Positive dc voltages cause the bar graph to fill to the right of center while negative dc voltages fill left of center To measure a dc voltage with the Meter rotate the rotary switch to the y or mvj position as shown in Figure 12 The Meter s dc volts function offers a number of modes to provide more details about a dc signal Pressing the softkey labeled Menu opens a menu of items tha
23. A yA The Meter s current functions have a number of modes which provide more details about a current signal Pressing the softkey labeled Menu opens a menu of items that can be used to modify the basic current measurement Refer to the appropriate section in this manual to learn more about each menu item To clear all modes and return to the basic ac or de current measurement press the softkey labeled Menu Move the menu selector to the item labeled AC DC Press the softkey labeled AC to clear all functions and modes and make basic ac current measurements or DC for basic dc current measurements 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 within a specified period of time 42 Figure 23 highlights the functions that allow frequency measurements est21 eps Figure 23 Functions Allowing Frequency Measurement The Meter autoranges to one of five frequency ranges 99 999 Hz 999 99 Hz 9 9999 kHz 99 999 kHz and 999 99 kHz Figure 24 shows a typical frequency display Pressing controls the input range of the primary function volts or amps and not the frequency range To measure frequency rotate the switch to one of the primary functions allowing frequency measurements highlighted in Figure 23 Press the softkey labeled Menu and
24. FLUKE 287 289 True rms Digital Multimeters Users Manual June 2007 Rev 2 3 09 2007 2008 Fluke Corporation All rights reserved Specifications subject to change without notice All product names are trademarks of their respective companies Lifetime Limited Warranty Each Fluke 20 70 80 170 180 and 280 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 acci dent 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
25. HOLD Threshold Value press the softkey labeled Setup to access the setup menu Using the cursor buttons move the menu selector next to the menu item labeled Recording and press the softkey labeled Recording to open the recording setup screen Using the cursor buttons move the menu selector next to the menu item labeled Event Threshold for AutoHOLD and then press the softkey labeled Edit Press or gt to scroll through the AutoHold threshold values With the desired value selected press the softkey labeled Close Measuring Crest Factor Crest factor is a measure of signal distortion and is calculated as a signal s peak value over its rms value This is an important measurement when looking at power quality issues The Meter s crest factor function is only available for the ac measurements Vac mVac Aac mAac and Aac With the Meter in one of the ac measurement functions press the softkey labeled Menu Next move the menu selector next to the menu item labeled Peak CF and press the softkey labeled CF The 16 crest factor value is displayed in the primary display while the ac measurement appears in the secondary display Frequency duty cycle and pulse width are not allowed during crest factor measurements Capturing Minimum and Maximum Values The MIN MAX Record mode captures minimum average and maximum input values When the input goes below the recorded minimum value or above the recorded maximum value the Meter beep
26. I indicates a negative pulse To change the polarity being measured press the softkey labeled L H The polarity indicator changes to the opposite polarity For 5 V logic signals use the 5 V dc range For 12 V switching signals in automobiles use the 50 V dc range For sine waves use the lowest ac or dc range that does not result in multiple triggering A manually selected lower input range will often measure better than the AUTO selected input range Measuring Pulse Width The pulse width function measures the amount of time a signal is high or low as shown in Figure 27 The measured waveform must be periodic its pattern must repeat at equal time intervals The meter measures pulse width from 0 025 ms to 1250 0 ms ranges To measure pulse width position the rotary switch to one of the functions allowing frequency measurements shown in Figure 23 Press the softkey labeled Menu and move the menu selector to the menu item labeled Hz ms Next press the softkey labeled ms 45 287 289 Users Manual Trigger Level 7 Measure Positive Pulse Width J L Pulse Width 4 a Period Frequency Measure Negative Pulse Width l WS Trigger Level Pulse Width gt m _ Period _ gt 46 Figure 27 Pulse Width Measurements The primary display indicates the input signals pulse width in milliseconds The frequency of the signal is dis
27. IEC LR6 Battery Life 2 0 0 0 cece cece eeeneeeeeeeeeeeteeeeeeaee 100 hours minimum 200 hours in Logging mode Temperature Operating 20 C to 55 C O EE 40 C to 60 C Relative Humidity 0 0 0 0 eee eee eeee 0 to 90 0 C to 37 C 0 to 65 37 C to 45 C 0 to 45 45 C to 55 C Altitude Operating ccooocccccnocicononcccnnocnnnnnncononnn ca nana no nannnncnno 3 000 m Storage 10 000 m Temperature Coefttcent ee 0 05 X specified accuracy C lt 18 C or gt 28 C Vibration caia dias Random Vibration per MIL PRF 28800F Class 2 SOCK esi cis fos ra dia 1 meter drop per IEC EN 61010 1 2 Edition Size HWX cocinada neni ae 8 75 in x 4 03 in x 2 38 in 22 2 cm x 10 2 cm x 6 0 cm Weight 28 0 oz 871 g Safety Standards USAN Slide anuedik Complies with ANSI ISA 82 02 01 61010 1 2004 Ee Eeer CAN CSA C22 2 No 61010 1 04 to 1000 V Measurement Category III and 600 V Measurement Category IV Pollution Degree 2 UL 61010 2003 IEC EN 61010 1 2 Edition Pollution Degree 2 CE European 66 True rms Digital Multimeters Detailed Specifications Electromagnetic Compatibility Standards EMC European EM EN61326 1 Australian EM N10140 US FOC tna nda FCC CFR47 Part 15 CLASS A Certifications cccccccccecessesessesssesssesssesessessseveseees UL CE CSA E N10140 Detailed Specifications Accuracy Accuracy is specified for a period of one year after calibration at
28. Note and MIN MAX are disabled when the Meter is setup for diode test FLUKE 289 TRUE RMS MULTIMETER Typical Reading Forward Bias FLUIKEE 289 TRUE RMS MULTIMETER RANGE into Figure 20 Diode Testing True rms Digital Multimeters Making Measurements Reverse Bias est16 eps 37 287 289 Users Manual Measuring Current AA Warning To avoid damage to the Meter and possible injury never attempt an in circuit current measurement where the open circuit potential to earth is greater than 1000 V A Caution To avoid possible damage to the Meter or to the equipment under test check the meter s fuses before measuring current See the Maintenance section later in this manual 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 open the circuit under test then place the meter in series with the circuit Note When measuring current the display will flash when the input current exceeds 10 amps for the A terminal and 400 mA for the mA UA terminal This is a warning that current is approaching the fuse s current limit To measure ac or dc current proceed as follows 1 Turn off power
29. ak Values AAA Low Pass Filter Model 289 on Making Relative Measurements A VEIA E ttunttun ttnan E EnnEEnnntEnnntEE Antenn nnnnnn nennt Measuring AC Voltage comia a a ac Using LoZ for Voltage Measurements Model 289 only Making dB Measurements A Measuring DC Voltage uu ceeeeecceeseeeeeeeesneeeeeeeeeseeeeaeeeeseeeeaeeeeseeseaeeseaeeseaeeseeeseeeseaees Measuring AC and DC Signals 0 eecceecceeeceeeneeeeeeeeeneeeeeeeseaeeeeaeeseaeeeseeeeeeseaeereaees Measuring Temperature iicssciecaccdeceeeserseesdaetevsacecaandaccsaneacectassecdendeetieavasessuaeueeresrens Using the 500 Function Model 289 Only ceesceesceeeeeeeeeeeseeeeeneeeseaeesneeeseaeeeaaes Testing for Continuity E Using Conductance for High Resistance Tests ERA tetese ttttntttnettattnnttnetnnstnttnnntnnstnaennenneen eenn Testing Didesain aaraa aaan ae isc AAE aA E Oa AA AEEA aAA EAE a EA NENENG Measuring Current sinesinde ic dead de ras il Contents continued Measuring Ne Ee Ee Measuring Duty AA Measuring Pulse Wd Changing Meter Setup Options ooococinnccnccccnoncccnnncnonnnnonccnoncnnnnc cnn nnnnn cnn rca Resetting Meter Setup Option Setting Display Contrast AA Setting the Meter s Language Setting Date and Time Setting Backlight and Auto Off Timeouts ooooccconcccnncccconcccnnccnonononnncnoncnnnnccnancnnnnncnnncnno Setting a Custom dBm Reference A Disabling and Enabling the Beeper AAA Enabling and Disabling the Smoothing Mode Using Other S
30. attery saver mode See the Setting Backlight and Auto Off Timeouts section for more information on the battery saver mode To activate the MIN MAX mode press mux As shown in Figure 6 the Meter displays at the top of the measurement page and the MIN MAX start date and time along the bottom of the page In addition the recorded maximum average and minimum values appear in the secondary display with their respective elapsed times True rms Digital Multimeters Capturing Minimum and Maximum Values 06 07 07 MN 1119 81 Auto Range Maximum 1 27 D 09 Se cane Average 1 19 D 50 E 01 10 09 VAC Minimum 1 10 23 00 59 59 Start 06 07 07 7 00 pm KS RRE est42 eps Figure 6 MIN MAX Record Display To stop a MIN MAX recording session press or the softkey labeled Stop The summary information in the display freezes and the softkeys change function to allow saving the collected data Pressing again or the softkey labeled Close exits the MIN MAX record session without saving the collected data Note Turning the rotary switch before saving the MIN MAX recording data will cause all the accumulated data to be lost To save the MIN MAX screen data the MIN MAX session must be ended by pressing the softkey labeled Stop Next press the softkey labeled Save A dialog box opens where the default saved name can be selected or another name assigned Press 17 287 289 Users Manual the softkey labeled Save to
31. be for measuring temperature To measure temperature set up the Meter as shown in Figure 14 Press the softkey labeled Menu and move the menu selector to the menu item labeled Temp Press the softkey labeled F for temperature in Fahrenheit or C for Celsius Note A Meter classified as SI will not have an F selection The primary display normally shows temperature or the message Open Thermocouple The open thermocouple message may be due to a broken open probe or because no probe is installed into the input jacks of the Meter Shorting the V Q terminal to the COM terminal will display the temperature at the Meter terminals Note is disabled when the Meter is in the Temperature function 28 Figure 14 80BK Type K Thermocouple Probe Temperature Measurement est17 eps To input a temperature offset value press the softkey labeled Offset to open a message box with the present offset value Use and to position the cursor over one of the digits or the polarity sign Use and Y to scroll through the numbers for each digit in the offset or switch between a or offset With the desired value displayed press the softkey labeled OK to set the temperature offset When set to something other than 0 0 the offset value is shown in the secondary display Measuring Resistance A Caution To avoid possible damage to the meter or to the equipment under tes
32. beled REL and press the softkey labeled REL to subtract the residual value with the test leads open Note is disabled when the Meter is measuring conductance 34 mee uan max Figure 18 Conductance Measurement GES GZ est14 eps Measuring Capacitance A 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 confirm 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 nF to microfarad uF range The Meter measures capacitance by charging the capacitor with a known current for a known period of time measuring the resulting voltage and then calculating the capacitance True rms Digital Multimeters Making Measurements tun max est15 eps Figure 19 Capacitance Measurement 35 287 289 Users Manual To measure capacitance position the rotary switch to 2f and set up the Meter as shown in Figure 19 If the display doesn t already indicate the Meter is measuring capacitance press the softkey labeled Menu Next move the menu selector to the menu item labeled Diode Cap and press the softkey labeled Cap Note
33. controlling the beeper for that function is not done through this setup option See the Testing for Continuity section for information on the continuity beeper To enable or disable the Meter s beeper press the softkey labeled Setup and position the menu selector next to the menu item labeled Instrument Next press the softkey labeled Instrument and position the menu selector next to the menu item labeled Beeper Press the softkey labeled Edit to move the cursor to the on or off selection Use and gt to switch the beeper on or off The status of the beeper is indicated in the display s status bar see item 12 in Figure 2 Enabling and Disabling the Smoothing Mode When an AC input signal is noisy or changes rapidly the smoothing mode may display a steadier reading To enable or disable the smoothing mode press the softkey labeled Setup and position the menu selector next to the menu labeled Instrument Next press the softkey labeled Instrument and position the menu selector next to the menu item labeled Smoothing Press the softkey labeled Edit to move the cursor to the on or off selection Use and gt to switch the smoothing mode on or off Using Other Setup Options Additional setup options hold information about the Meter as well as some general Meter functions The Meter Info selection lists the serial number model number firmware version calibration date and calibration counter Operator name company name site na
34. ct operation If the Meter still does not work pack it securely and forward it postage paid to the location provided by the appropriate Fluke contact Include a description of the problem Fluke assumes no responsibility for damage in transit A Meter under warranty will be repaired or replaced at Fluke s option and returned at no charge See the registration card for warranty terms True rms Digital Multimeters In Case of Difficulty 61 287 289 Users Manual Service and Parts Replacement parts and accessories are shown in Tables 11 and 12 and Figure 31 To order parts and accessories refer to the Contacting Fluke section Table 11 Replacement Parts Fluke Part Model Number 2798434 2798418 289 2798429 287 2578234 2740185 2578178 2743764 Item Description Qty 2760673 289 t eos 1 2798407 287 8 LCD Module 1 2734828 9 Shock Absorber 3 2793516 10 Spring Detent 1 2723772 11 RSOB Housing Upper 1 2578283 Upper 1 2578252 12 Shield Lower 1 2578265 62 True rms Digital Multimeters Service and Parts Table 11 Replacement Parts cont Item Description Qty Fluke Part Model Number 13 RSOB Housing Lower 1 2578290 14 Case Bottom 1 2578184 15 Shock Absorber Battery Compartment 1 2793525 16 Battery Contact Negative 2 2578375 17 Battery Contact Positive 1 2578353 18 Z Fuse F1 0 440 A
35. d appears on the right end for positive off scale values Status Bar Elements The status bar at the top of the Meter s display contains indicators for battery level time of day mini measurement display present date and beeper on off icon The mini measurement display shows the measurement value of the primary function if it is not already shown in the page area of the display For example when the display is frozen for a HOLD the mini measurement display continues to show the input signal Live measurement and a mini 4 In addition the mini measurement display will flash if 4 for inputs above 30 volts would normally appear in the primary display but is obscured To warn of the possibility of blowing a current fuse the mini measurement display also flashes when current measurements exceed the maximum continuous current levels see specifications Page Area The page area of the display is where the main meter content is displayed The primary display upper half of the page area is where the most important value of the selected function is shown The secondary display contains the bar graph and values that may be measured in addition to the primary function value For example with frequency measurement selected in Vac the frequency value will appear in the primary display with the ac voltage value in the secondary display Softkey Labels Labels for the four function softkeys F1 through F4 appear in the bottom r
36. e or choosing another name by pressing the softkey labeled Name See the Naming Saved Data section later in this manual The displayed data is stored along with the date and time of day the save was performed For MIN MAX and Peak the displayed summary data can be stored at any time by pressing the softkey labeled Save thus preserving a snapshot of the session at that moment Naming Saved Data The Meter has a list of eight preset names under which measurement data is saved Multiple records can be saved using the same name For example one preset name is Save The first time a save operation is performed with that name Save 1 is used to name the record in memory The next time the Save name is used the number increments to 2 and the record is 49 287 289 Users Manual saved under the name of Save 2 The auto incrementing number can be reset to 1 by positioning the menu selector next to the save name and then pressing the softkey labeled Reset To save a screen shot a recording session or MIN MAX or Peak record session press the softkey labeled Save To select the name from the preset list press Name To save to the same name as before but with the next number press the softkey labeled Save This second method makes it easy to save a series of measurements simply by pressing the Save softkey twice for each save operation When selecting the name for a save operation position the menu selector next to the desired na
37. e rotary switch navigate menus or control power to Meter circuits The buttons shown in Figure 1 are described in Table 2 Selects sub functions and modes related E to the rotary switch function Cursor buttons select an item in a menu adjust display contrast scroll through information and perform data entry A E DS l F4 ES the button for 1 second Starts and stops MIN MAX recording est02 emf Figure 1 Push Buttons Displays information about the present function or items on the display at the moment the info button is pressed Switches the display backlight between off low and high Freezes the present reading in the display and allows the display to be saved Also accesses AutoHold Switches the Meter range mode to manual and then cycles through all ranges To return to autoranging press 287 289 Users Manual Using Auto Repeat For some menu selections holding down a softkey or cursor button will continuously change or advance a selection until the button is released Normally each press of a button causes the selection to change once During some selections the selections will change faster if the button is held for two or more seconds This is helpful when scrolling through a list of selections such as a list of stored measurements Understanding the Display Display features shown in Figure 2 are described in Table 3 and the following sections sd 123 45
38. ed Record to open the configuration display There are two variables in setting up a recording session Recording session duration and sample interval duration Both variables affect the recording length and number of intervals recorded These two variables may interact in that setting one variable may adjust the other variable to fit the recording session within the available memory The percentage of memory available at the beginning of a recording session is displayed below the duration and sample interval settings Option values can be adjusted as follows The sample interval can be set from one second to 99 minutes and 59 seconds Recording session duration can be set from one minute to 99 days 23 hours 59 minutes True rms Digital Multimeters Recording Measurement Data Table 8 Recording Display pzas 06 33 07 Recording LE 1 75 con Range 500 VAC Start Time 06 10 07 07 23 5 EC a Time 2 Hrs 26 mins a Interval Samples 47 Events 7 og tl 121 70 VAC em O SSS ESS ESS Ea fie Bein o a reco sasson in prooress on 53 287 289 Users Manual The Meter allocates memory in such a way as to guarantee capturing all of the user specified sample intervals Event records will also be captured until the Meter detects the allocated memory has been used up At this point events are not recorded but the event counter continues to advance to indicate the total number of events that occurred A plus sig
39. eeeeeeeseeeeseseaeeseseeeescgeseneseneeeseseeeeenseeaens 7 Peak Record Display cccsscceceseeeeeeeseeeeeeseeeeeneeeeeeseeeeeeseaseneneeaeeseseeeesnneaeeseseeeneeseeeeness 8 Low Pass Eller ee ete Le eee dE 9 Relative Mode Functions A 10 AC Voltage Measurements AAA 1 ABMIDISPAY oran na ie 12 DC Voltage Measurement AAA A e 14 Temperature Measurement A 15 Resistance Measurement EE 16 Continuity Indicetor cnc 17 A le EE vil 287 289 Users Manual 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Conductance Measurement oocccncncncncncnnncnnnnnnnnnnnnnnnonononononennnnnnnnnnnn nn nn nn nn nr nr rr Capacitance Meas Diode Testing Current Measurem Current Measurem Functions Allowing Frequency Display ie EE ent Selina aa iaa ent Circuit Conpecthon none nn nnnnnnnninns Frequency Measurement Duty Cycle Measurements AAA Duty Cycle Dis play init oa panas Pulse Width Measurement AAA Testing the Curren Test Lead Storage L TEE Replacing Batteries and FUSES AAA Replaceable Parts viii Introduction A AWarning Read Safety Information before using this Meter The descriptions and instructions in this manual apply to the model 289 and model 287 True rms Digital Multimeters hereafter referred to as the Meter The model 289 appears in all illustrations Contacting Fluke To contact Fluke call USA 1 888 993 5853 Canada 1 800 363 5853 Europe
40. elected when the menu opens is the function selected the last time the menu was used To get to the Hz menu item from the REL item press once followed by one press of gt As the menu selector moves between the menu items the softkey labels change to indicate each softkey s function Once the desired function or mode appears in one of the softkey labels press the appropriate softkey to activate it The pop up menu closes and the display changes to reflect the selection just made Pressing the softkey labeled Close closes the pop up menu leaving the Meter in the state it was in before pressing the Menu softkey 14 In most cases the softkeys revealed by the menu selection act like toggles The example menu shown in Figure 5 shows REL REL and Close softkeys In this example the Meter is not in the relative mode so pressing the softkey labeled REL would activate or toggle the relative mode If on the other hand the Meter is already in the relative mode pressing the same softkey would disable the relative function In some cases pressing a function that can not be used with other functions appearing in the menu turns off the previously selected function For example in Figure 5 if the Meter is already in the relative function pressing REL causes the Meter to turn off relative and display relative percent In cases where multiple modes have been selected selecting the first top left menu item always turns off all other f
41. erminals True rms Digital Multimeters Maintenance Testing the Fuses As shown in Figure 28 with the Meter in the tine function insert a test lead into the V N jack and place the probe tip on the other end of the test lead against the metal of the current input jack If the Leads Connected Incorrectly message appears the probe tip has been inserted too far into the amps input jack Back the lead out a bit until the message disappears and either OL or a resistance reading appears in the Meter s display The resistance value should be between 0 00 and 0 50 Q for the A jack and 10 00 0 05 KQ for the A jack A AWarning 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 Fluke specified replacement fuses with the amperage voltage and speed ratings shown in Table 11 57 287 289 Users Manual Replace F1 if reading is OL Replace F2 if reading is OL 58 Figure 28 Testing the Current Fuses Replacing the Batteries Refer to Figure 30 and replace the batteries as follows 1 Turn the Meter off and remove the test leads from the terminals Remove the battery door assembly by using a standard blade screwdriver to turn the battery door screw one half turn counterclockwise Replace the ba
42. etup Options conan ccoo nc nn cnn crac rana Using Memo Yi o ira ee Storing Individual Measurement Data Naming Saved Data Viewing IA Viewing Snapshot and Summary Data oooooccccicccccccccconcconnccnoncnonncnnnncnnancnnnncnnnncnnnno Viewing Trend Date coccion irte ZOOMING in on Trend Data Deleting Stored Measurement Data oooococincccnncccioncconcncnoncnoncncnnnnnnnn nn non nnnnnnrnnn narco Recording Measurement Data A Setting up a Recording Session oooonccccnocicnnccconcncnnccnoncnnnnnnnnnnn nan crac cnn cnn nn rancia rancia Setting the Event Threshold Value ooooonocccnncccnnccnncccnoncnnnnncnnncnnnnnnnancn cnn nrnnnnn arc nnnncnnna Starting a Recording Session ooconocccnncconociconccconoconnnncnnononnn ccoo conc cnn cn nnn nn nnncnrnnc cnn Stopping a Recording Session cooooconncccnocicncccconononnccnoncnnnnnnnnnn cnn cn nan cn nan nn cnn cn nana nnncnnns Using Communications eccceeeceeeeeeeeneeeeeeeceeeeeneeeseaeeeeeeseeeeeeessaeeseeeseeeseeeseneeeeneeees Erot MOSSAGCS EE iii 287 289 Users Manual MaintemanGe iii dt is General Maintenance Testing the FUSES iii di Replacing the Batteries Replacing KC He TEE Test Lead Kee EE In Case of Difficulty Service and EE General Specifications EE Detailed Gpechtlcattons conan corn n cn nnnn nn nn AC Voltage Specifications AC Current Specifications cnn ana nnn cnn rca ran nnnnnccns DC Voltage Specification oooooonnnccnnidinnininnnnnnccnnncannnccnnncnnnrcr nr ra
43. evel indicator in the upper left hand corner of the display indicates the relative condition of the batteries Table 6 describes the various battery levels the indicator represents 12 Table 6 Battery Level Indicator Indication Battery Capacity a Full capacity Y capacity Almost empty less than one day 1 When critically low a Replace batteries pop up message appears 15 seconds before the Meter shuts down The Meter will display a Batteries low message whenever the battery level will not support a selected function Automatic Power Off The Meter automatically turns off if the rotary switch is not moved or a button is not pressed for 15 minutes default Pressing will turn the Meter back on after it is powered off automatically To change the timeout period or completely disable automatic power off refer to Setting Backlight and Auto Off Timeouts later in this manual Battery Saver Mode If Auto off is enabled set to a time period and MIN MAX record Peak record Recording or AutoHold is enabled the Meter will enter a battery saver mode if a push button is not pressed or the rotary switch is not moved for a set period of time For the recording mode the time period is five minutes For MIN MAX Peak and AutoHold modes the time period is the same time the Auto Off feature is set for See the Setting Backlight and Auto Off Timeouts section later in this manual Battery saver mode conser
44. ge Resolution Accuracy Resistance 50 Q II 0 001 Q 0 15 20 500 Q 0 01 Q 0 05 10 5kQ 0 0001 kQ 0 05 2 50 kQ 0 001 kQ 0 05 2 500 kQ 0 01 kQ 0 05 2 5 MQ 0 0001 MQ 0 15 4 30 MQ 0 001 MQ 15 4 50 MQ 0 01 MQ 15 4 50 MQ up to 100 MQ 0 1 MQ 3 0 2 100 MQ up to 500 MQ 0 1 MQ 8 2 Conductance 50 ns e 0 01 nS 1 10 1 When using the relative mode REL A to compensate for offsets 2 Add 20 counts above 33 nS in 50 nS range 3 289 only Temperature Specifications Temperature Resolution Accuracy DZ 200 C to 1350 C 0 1 C 1 10 328 F to 2462 F 0 1 F 1 18 1 Does not include error of the thermocouple probe 2 Accuracy specification assumes ambient temperature stable to 1 C For ambient temperature changes of 5 C rated accuracy applies after 2 hours 72 Capacitance and Diode Test Specifications True rms Digital Multimeters Detailed Specifications Function Range Resolution Accuracy Capacitance 1nF Hl 0 001 nF 1 5 10 nF 0 01 nF 1 5 100 nF UU 0 1 nF 1 5 1 uF 0 001 uF 1 5 10 uF 0 01 uF 1 5 100 uF 0 1 uF 1 5 1000 uF 1 uF 1 5 10 mF 0 01 mF 1 5 100 mF 0 1 mF 2 20 Diode Test 3 1V 0 0001 V 1 20 1 With a film capacitor or better using relative mode REL A to zero residual 73 287 289 Users Manual Frequency Counter Specifications Function Range
45. he recording display and describes the information displayed The Menu Setup Reference and Temperature Offset softkey functions are not available while the Meter is recording This ensures that measurements within a recording session are consistent To extend battery life while recording the Meter may enter a battery saver mode five minutes after a push button is pressed or IR communications activity ends If the Auto Power Off timeout is set to never the battery saver mode is disabled Stopping a Recording Session The recording session will continue until the allocated memory is used the batteries expire the rotary switch is moved a probe is inserted or removed from the A or mA UA jacks or the session is terminated by pressing the softkey labeled Stop Table 9 shows the display and describes the displayed information after stopping a recording session After stopping a recording session choose to save the recording session view the trend data see the Viewing Trend Data section or close the recording session If the session wasn t saved before pressing the Close softkey the data is lost Table 9 Stopped Recording Display Stopped E 75 Go aoe SE 500 V SC CH eg 3 days 14 Hrs 47 msa 3 Interval Samples 135 Events 53 a icin 121 70 VAC OIOI eee Description Stopped Icon indicating the recording session is stopped Time and date when the recording began
46. insulation or exposed metal Check the test leads for continuity Replace damaged test leads before you use the Meter Do not apply more than the rated voltage as marked on the Meter between the terminals or between any terminal and earth ground Never operate the Meter with the cover removed or the case open Use caution when working with voltages above 30 V ac rms 42 V ac peak or 60 V dc These voltages pose a shock hazard Use only the replacement fuses specified by the manual Use the proper terminals function and range for measurements 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 When making electrical connections connect the common test lead before connecting the live test lead when disconnecting disconnect the live test lead before disconnecting the common test lead 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 1 5 V AA batteries properly installed in the Meter case to power the Meter When servicing the Meter use only specified replacement parts When using probes keep fingers behind the finger guards on the probes Do not use the Low Pass Filter option to verify the presence of hazardous voltages Voltages greater than what is
47. ion is corroded No Thermocouple connected to the Meter s input Batteries low function The function selected requires a higher battery level to operate within specifications unavailable Error Date and Time need to be Batteries were left out too long and the Meter s date and time were lost reset Not enough memory for When starting a recording session or saving screen data the Meter does not have operation enough memory to store the information Batteries critically low replace Battery is too low to make measurements within stated specifications The Meter will turn now off within 15 seconds after this message appears to preserve the Meter s date and time 56 Maintenance A AWarning To avoid electrical shock or personal injury repairs or servicing not covered in this manual should be performed only by qualified personnel as described in the 287 289 Service Information General Maintenance Periodically wipe the case with a damp cloth and mild detergent Do not use abrasives isopropyl alcohol 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 clean swab with mild detergent and water Work the swab around in each terminal Dry each terminal using canned air to force the water and detergent out of the t
48. l Meter operation The battery saver mode is used when the Meter is performing a recording session or during MIN MAX Peak record and AutoHold The battery saver mode powers down circuits that are not involved in the operation of these recording sessions including the display For the record mode the timeout period is set to five minutes and is enabled only when the Auto Power Off 48 timeout is set to a value other than Off For MIN MAX Peak and AutoHold the timeout is the time period set for Auto Off Setting a Custom dBm Reference To add a custom dBm reference value press the softkey labeled Setup and position the menu selector next to the menu item labeled Instrument Next press the softkey labeled Instrument and position the menu selector next to the menu item labeled dBm Reference Next press the softkey labeled Edit Use and to position the cursor on a specific digit Press and gt to increment or decrement the digit With the desired reference displayed press the softkey labeled OK to add this value to the dBm reference list Only one custom value is allowed Press the softkey labeled Close to return to normal Meter operation Disabling and Enabling the Beeper The Meter s beeper alerts users to the presence of messages operator errors such as incorrect lead connections for the selected function and newly sensed values for MIN MAX and Peak recording Although the beeper is also used for the continuity function
49. ls Table 1 lists and describes the symbols used on the Meter and in this manual Table 1 Symbols AC Alternating CurrentorVolage re SS O DC Direct Current or Voltage Double Insulated Hazardous voltage Important Information refer to manual Battery Low battery when shown on the L display Earth ground Continuity test or continuity beeper tone ee to relevant Panadian and Conforms to European Union directives NAGA e Conforms to relevant Australian standards Po Underwriters Laboratory listed product Oe Pty ana licensed DY Wy penne IEC Measurement Category III CAT III equipment is designed to protect against transients in equipment in fixed equipment installations such as distribution panels feeders and short branch circuits and lighting systems in large buildings Do not dispose of this product as unsorted municipal waste Go to Fluke s website for recycling information IEC Measurement Category IV CAT IV equipment is designed to protect against transients from the primary supply level such as an electricity meter or an overhead or underground utility service CAT Ill True rms Digital Multimeters Features Table 2 Push Buttons Features Tables 2 through 5 briefly describe the Meter s features Button Function e Understanding the Push Buttons HC Turns the Meter on or off The 14 push buttons on the front of the Meter activate features that augment the function selected using th
50. me and contact information are also displayed when this information has been loaded into the Meter from FlukeView Forms software The Calibration selection allows a qualified calibration technician to enter a password that allows the Meter to be calibrated See the 287 289 Calibration Information document to calibrate the Meter The Secure Erase option allows user accessible memory to be erased as required by Homeland Security regulations Meter calibration is not lost when this low level erase is performed As new Meter features are created the latest version of software can be downloaded to the Meter from Fluke s support web page using the Software Update option True rms Digital Multimeters Using Memory Using Memory The Meter has memory for storing individual measurements measurements collected over a specified duration and measurement events All stored data can be viewed on the Meter or downloaded to a PC through the Meter s infrared IR communication link using FlukeView Forms See the Using Communications section for more information on communicating with a PC through FlukeView Forms software Storing Individual Measurement Data For all measurement functions a snapshot of the screen data is saved by pressing the softkey labeled Save Except for the mini measurement in the status bar the display freezes and the Save menu appears Two choices allow either saving the data under a previously selected nam
51. me using the cursor buttons Next press the softkey labeled Save Viewing Memory Data Viewing data stored in the Meter s memory is performed through the save menu Press the softkey labeled Save Position the menu selector next to the menu item labeled View Memory and press the softkey labeled View Note To view data stored in memory the Meter must not be recording or performing a MIN MAX or peak record session The Meter separates stored data into four different categories Measurement MIN MAX Peak and Recording Use the cursor buttons to position the menu selector next to the desired saved data category and then press the softkey labeled View The Meter displays the last record saved for the selected data category 50 If there are previously stored records press the softkey labeled Prev or to page back through previously stored records Press the softkey labeled Next org to page in the other direction Press Close to return to normal Meter operation Viewing Snapshot and Summary Data After selecting the MIN MAX Peak or Measurement category described in the Viewing Memory Data section above pressing View only displays the information stored at the time a Save was performed The display is reconstructed from this data when viewed Viewing Trend Data For the Recording category the interval and event data stored during a recording session are viewed on the Meter through a trend plot view similar to a strip chart
52. move the menu selector to the menu item labeled Hz ms Next press the softkey labeled Hz 60 050 META DD Auto Range 100 200 300 500 VAC Weier WM Menu Save yy Setup est22 eps Figure 24 Frequency Display As shown in Figure 24 the frequency of the input signal is displayed in the primary display The volts or amps value of the signal is shown in the secondary display The bar graph does not indicate frequency but indicates the volts or amps value of the input signal True rms Digital Multimeters Making Measurements Selection between a rising trigger d or falling trigger 1 edge is performed by pressing the softkey labeled d D This softkey toggles the trigger setting between the two selections The following are tips for frequency measurements 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 manually selecting a lower input range which increases the sensitivity of the meter If a reading seems to be a multiple of what you expect the input signal 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 In general the lowest frequency displayed is the correct one Measuring Duty cycle Duty cycle or duty factor is the percentage of time a signal is above or below a trigger level du
53. mum 2 x 10 V Hz product maximum Noise at low frequencies and amplitudes may affect accuracy 2 Typical frequency bandwidth with full scale or maximum 2 x 10 V Hz product rms sine wave 75 287 289 Users Manual MIN MAX Recording and Peak Specifications Function MIN MAX Recording Nominal Response 200 ms to 80 dc function Accuracy Specified accuracy 12 counts for changes gt 425 ms in duration in manual range 350 ms to 80 ac function Specified Accuracy 40 counts for changes gt 1 5 s in duration in manual range Peak 250 uS peak Specified accuracy 100 counts up to 5 000 count full range reading For higher peak reading to 12 000 counts specified accuracy 2 Hl of reading Crest Factor 350 ms to 80 For periodic waveforms from 50 to 440 Hz 4 1 count 1 For repetitive peaks 2 5 ms for single events Peak not specified for 500 uA DC 50 mA DC 5A DC 2 200 counts in 500 mV AC 500 A AC 50 mA AC 5 AAC DI 3 in 500 mV AC 500 uA AC 50 mA AC 5 AAC 76 True rms Digital Multimeters Detailed Specifications Input Characteristics Overload Common Mode Function pj Input Impedance Rejection Ratio Normal Mode Rejection Protection 1 kQ unbalance 10 MQ lt 100 pF gt 120 dB at dc 50 Hz or 60 Hz gt 60 dB at 50 Hz or 60 Hz 10 MQ lt 100 pF gt 120 dB at dc 50 Hz or 60 Hz gt 60 dB at 50 Hz or 60 Hz 10 MO
54. n appears after the event count to indicate this condition Note The maximum number of recorded sample intervals is 10 000 The maximum number of recorded events is 15 000 minus the number of sample intervals These maximum numbers are proportionally decreased when the available memory is low To change either of the two recording variables use the cursor buttons to position the menu selector next to the desired menu item and press the softkey labeled Edit Use Y Y and gt to move between and set each digit of the selected variable If the battery level is anything but full a message appears at the bottom of the record menu reminding you of the battery level before you start the recording session Setting the Event Threshold Value Press the softkey labeled Setup to access the setup menu Using the cursor buttons move the menu selector next to the menu item labeled Recording and press the softkey labeled Recording to open the recording setup screen Using the cursor buttons move the menu selector next to the menu item labeled Event Threshold for Recording and then press the softkey labeled Edit Press or to scroll through the event threshold 54 values With the desired value selected press the softkey labeled Close Starting a Recording Session Once the variables are set press the softkey labeled Start at which point appears in the display and the green LED surrounding the power button flashes Table 8 shows t
55. n rara DC Current Specifications Resistance Specifications ooooonocinidinnccnnnnnnocccnoncnnncnnnnrnnnnrn crac nn cnn Temperature Specifications oooonccnnnidinininnncnoccnnnccnncncnnnrn nono n corr n carr nnn rra nnnrnnnnrnncn Capacitance and Diode Test Specifications seeseeseeeieeeeeeteeereeeeinnereeneeneeene Frequency Counter Specifications eccceeeceeeseeeeeeeeeneeeeeeseeeseeeeeeeeseaeesneeeseaeenaaee Frequency Counter Sensitivity eeceecceeeseeeeneeeeeeeeeneeeeeeeeseeeeeeseeeeeneeeeeeseaeeseaees MIN MAX Recording and Peak Specifications Input Characteristics voii dd Burden Voltage A mA uA List of Tables Table 1 SVIMDOIS E E E E EL te 2 PUSH le E 3 Display Features iii id aaa 4 Rotary Switch Positions cceccecceeceeeeeeneeeeeeeeeeeseaeeeeaeeseaeeeeaeeseeeeeaeeseaeeeseeeseaeeeneeeseaeeenaeen 5 lieu EE 6 Battery Level IMGICAtOn c c2ccissereccsshestucieresandachestaatacavesteaseasaeeacaseedeensiceedavaneceendeecneeaseenchagaceris 7 Trend Data Display ia ida 8 Recording Display codi ad 9 Stopped Recording Display 10 Error Messages ccoo de 11 Replacement Parts uiuiciin aria 12 ACCOSSOMES iia eee 287 289 Users Manual vi List of Figures Figure Title 1 Push Buttons iii ii 2 Display Features ocacion rolas 3 Rotary Switch ciaci n 4 vleit EE 5 FUNCION On UE 6 MIN MAX Record Display cc cccesecceeeeseeeeeeeeeeeeen
56. not use in conductance diode test LoZ Low Ohms and temperature functions These functions all use a fixed range In autorange the Meter selects the lowest range to display the highest available precision resolution for the input signal If Manual range is already enabled press and hold for one second to enter the autoranging mode If autorange is enabled press to enter manual ranging Each additional press of Rance sets the Meter to the next higher range unless it is already in the highest range at which point the range switches to the lowest range Understanding Function Menus Each primary measurement function rotary switch position has a number of optional sub functions or modes accessed by pressing the softkey labeled Menu F1 A typical menu is shown in Figure 5 13 287 289 Users Manual VAC Hz mS REL dBm CI Peak CF O dBv LON est05 eps Figure 5 Function Menu Menu selection is indicated by the filled in black square hereafter the menu selector to the left of a menu item Use the four front panel cursor buttons 9 0 to position the menu selector next to a menu item As the menu selector moves between menu items the four softkeys and their labels change to reflect the available functions and or modes available for the selection menu item The example menu in Figure 5 shows the REL Relative function as the current selection The function s
57. ow of the display These labels will change based on the function and or menu selection Adjusting Display Contrast When not selecting items on a menu or inputting data pressing increases display contrast and pressing gt decreases it True rms Digital Multimeters Features 287 289 Users Manual Understanding the Rotary Switch Select a primary measurement function by positioning the rotary switch to one of the icons around its perimeter For each function the Meter presents a standard display for that function range measurement units and modifiers Button choices made in one function do not carry over into another function The model 289 offers two additional functions low ohms 500 and low impedance LoZ ac volts Each position shown in Figure 3 is described in Table 4 est03 emf Figure 3 Rotary Switch 10 Table 4 Rotary Switch Positions Switch Position r O N y ES o 3 n are AC voltage measurement using a low input impedance model 289 only AC voltage measurements AC millivolt measurements DC and ac dc voltage measurements DC millivolts ac dc millivolt and temperature measurements Resistance continuity and conductance measurements Diode test and capacitance measurements AC dc and ac dc amps and milliamps measurements AC dc and ac dc microampere measurements up to 5 000 uA Resistance measurements with 500 range model 289 only T
58. peak recording session The peak recording session start time is shown along the bottom of the page area of the display When the peak value of the input signal goes below the recorded minimum value or above the recorded maximum value the Meter beeps and records the new value At the same time the elapsed time since the peak recording session was started is stored as the recorded value s time stamp Pressing the softkey labeled Stop ends the peak recording session The summary information in the display freezes and the softkeys change function to allow saving the collected data Pressing the softkey labeled Close exits the peak recording session without saving the collected data Note Turning the rotary switch before saving the peak recording data will cause all the accumulated data to be lost To save peak screen data the peak capture session must be ended by pressing the softkey labeled Stop Next press the softkey labeled Save A dialog box opens where the default saved name can be selected or another name assigned Press the softkey labeled Save to store the Peak screen data Peak capture can not be continued at this point Press the softkey labeled Close to exit the Peak capture mode Pressing the softkey labeled Restart while the peak recording session is running stops the session discards all peak recorded data and immediately starts a new peak record session When viewing saved records snapshot peak records look the same
59. played in the secondary display The mini measurement display indicates the volts or amps value of the input signal The bar graph tracks the volts or amps value of the signal and not the pulse width value The pulse width polarity is displayed to the right of the duty cycle value L indicates a positive pulse width and ET indicates a negative pulse To change the polarity press the softkey labeled FL LI The polarity indicator changes to the opposite polarity Changing Meter Setup Options The Meter has a number of preset features such as date and time formats backlight and battery save mode timeouts and the displayed language These variables are referred to as Meter setup options Many setup options affect general Meter operations and are active in all functions Others are limited to one function or group of functions Access to the setup options is always available through the softkey labeled Setup Information about the Meter such as serial number model for example is also accessed through the setup menu Resetting Meter Setup Options The Meter s setup options can be reset to default values through the setup menu Open the setup menu by pressing the softkey labeled Setup Position the menu selector next to the menu item labeled Reset and press the softkey labeled Setup A message will appear asking to confirm the reset action Press the softkey labeled OK to perform the reset True rms Digital Multimeters Changing Meter Set
60. rcuit because the resistance through the Meter s current terminals is very low If a test lead is plugged into the mA LA or A terminal but the rotary switch is not set to the correct current position the beeper warns you by making a chirping sound and displays Leads connected incorrectly 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 Using the Info Button While operating the Meter more information about a selected function a front panel button or a menu item may be necessary Press to open an information window that lists topics covering the functions and modifiers that are available at the time the button is pressed Each topic provides a brief explanation on a Meter function or feature True rms Digital Multimeters Input Alert Feature The information revealed through is not meant to replace the more detailed information found in this manual Function and feature explanations are brief and only meant to refresh a person s memory The number of information topics displayed at any one time may exceed the display area Use the softkeys labeled Next and Prev to move from topic to topic Use the softkey labeled More or and to scroll through the information a full screen at a time Pressing the softkey labeled Close or will close the information window Hold and AutoHold Mode To free
61. rent measurement functions the Meter will default to the last current type selected AC or DC True rms Digital Multimeters Making Measurements 39 287 289 Users Manual 40 2 5527 me FLUKE 289 TRUE aus MULTIMETER SE Auto Ra FLUKE 289 TRUE RMS MULTIMETER peo a mAAC Figure 21 Current Measurement Setup FLUKE 289 TRUE RMS MULTIMETER o Age Auto Range est18 eps True rms Digital Multimeters Making Measurements Total current to circuit Circuit Power OFF to connect meter ON for measurement OFF to disconnect meter Current through one component est19 eps Figure 22 Current Measurement Circuit Connection 41 287 289 Users Manual A Caution 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 testing 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 The following are tips for current measurements A current meter drops a small voltage across itself which might affect circuit operation You can calculate this burden voltage using the values listed in the specifications under Burden Voltage A m
62. ring one cycle as shown in Figure 25 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 43 287 289 Users Manual Measures Positive Pulse Lt Trigger Level 2 30 Above 100 Measures Negative Pulse L WSN Trigger Level 70 Below Trigger Level lt 100 est28 eps Figure 25 Duty Cycle Measurements 44 To measure duty cycle position the rotary switch on one of the functions allowing frequency measurements shown in Figure 23 Press the softkey labeled Menu and move the menu selector to the menu item labeled Hz ms Next press the softkey labeled am 8 10pm 49 CES 06 13 07 1 h 123 45 VAC ll Range 500 VAC 59 756 Hz Menu Save JL I Setup est24 eps Figure 26 Duty Cycle Display As shown in Figure 26 the duty cycle percentage is shown in the primary display while the signal frequency appears in the secondary display The mini measurement display indicates the True rms Digital Multimeters Making Measurements volts or amps value of the input signal The bar graph tracks the volts or amps value of the signal and not the duty cycle value The pulse polarity is displayed to the right of the duty cycle value FL indicates a positive pulse and E
63. rue rms Digital Multimeters Features Using the Input Terminals Table 5 Input Terminals All functions except current use the 4 V A and COM input used as follows Input for 0 A to 10 00 A current 20VA Current from 0 to 400 mA use the mA and COM terminals overload for 30 seconds on 10 minutes off frequency and duty cycle measurements Current between 0 and 10 A use the A and COM terminals Input for O A to 400 mA current measurements frequency and duty cycle COM Return terminal for all measurements Input for voltage continuity resistance diode test conductance capacitance frequency temperature period and duty cycle measurements est04 emf Figure 4 Input Terminals 11 287 289 Users Manual Controlling Meter Power The Meter is powered by six AA batteries and controlled through a front panel power switch and internal circuits designed to help conserve battery power The following sections describe several techniques for controlling Meter power Powering the Meter On and Off Manually With the Meter off press to turn on the Meter Pressing while the Meter is on causes it to turn off Note Collected data is retained when the Meter is turned off while in record MIN MAX record or Peak record modes When the Meter is next turned on the dispay shows the collected data in stopped mode Pressing the softkey labeled Save will save the data Battery Level Indicator The battery l
64. s and records the new value The Meter stores the elapsed time since the recording session was started at the same time The MIN MAX mode also calculates an average of all readings taken since the MIN MAX mode was activated This mode is for capturing intermittent readings recording minimum and maximum readings unattended or recording readings while equipment operation precludes watching the Meter The MIN MAX mode is best for recording power supply surges inrush currents and finding intermittent failures Response time is the length of time an input must stay at a new value to be captured as a possible new minimum or maximum value The Meter has a 100 millisecond MIN MAX response time For example a surge lasting 100 milliseconds would be captured but one lasting only 50 milliseconds may not be captured at its actual peak value See the MIN MAX specification for more information The true average value displayed is the arithmetic mean of all readings taken since the start of recording overloads are discarded The average reading is useful for smoothing out unstable inputs calculating power consumption or estimating the percentage of time a circuit is active Note For input signals that are noisy or change rapidly turn on the Smoothing mode to display a steadier reading See the Enabling and Disabling the Smoothing Mode section later in this manual To extend battery life during MIN MAX recording the Meter will enter a b
65. s range is limited to 10 but the display goes to 999 9 At 1000 or more the display indicates OL When the reference value is 0 the Meter displays OL With the exception of dB measurements ranging is set to manual and can not be changed Both auto and manual ranging is possible when making relative dB measurements When relative is enabled during dBm or dBV measurements the displayed units change to dB In relative or relative percent mode the softkey label for F3 indicates REL or REL depending on which of the two modes is not presently selected The F3 button acts as a toggle switching the Meter between the two modes Moving the rotary switch between V and mV while in relative dBm or dBv mode does not disable the dB measurement This allows continuous measurements over a wide range of input voltage 21 287 289 Users Manual Making Measurements The following sections describe how to take measurements with the Meter Measuring AC Voltage The Meter displays ac voltage measurements 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 voltage True rms readings are accurate for sine waves and other wave forms with no dc offset such as square waves triangle waves and staircase waves For ac with dc offset refer to the Measuring AC and DC Signals section later in this manual Rotate the Meter s rotary swi
66. s the softkey labeled Menu Move the menu selector to the menu item labeled Beeper and press the softkey labeled Beeper The status of the continuity beeper is displayed to the right of the resistance reading with 1 when enabled and M when disabled This setting is independent of the Meter s beeper enable disable setting in the setup menu Toggle between the continuity and ohms functions by pressing softkey F3 which is always labeled with the alternate function True rms Digital Multimeters Making Measurements 33 287 289 Users Manual Using Conductance for High Resistance 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 Siemens S The meter s 50 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 is used to measure the resistance of components up to 100 000 MQ or 100 000 000 000 Q 1 nS 1 000 MQ To measure conductance position the rotary switch to ang and set up the Meter as shown in Figure 18 Move the menu selector to the menu item labeled Ohms nS and press the softkey labeled nS There is normally a residual conductance reading with the test leads open To ensure accurate readings press the softkey labeled Menu Move the menu selector to the menu item la
67. sistance Measurements Isolating a Potentiometer ircuit Power SE Sa Disconnect est11 eps Figure 15 Resistance Measurement 30 Using the 50N Function Model 289 Only A Caution To avoid damaging the circuit under test be aware the Meter sources current up to 10 mA at an open circuit voltage up to 20 volts To measure low resistances with the Meter position the rotary switch to 5029 This function has a single range and is therefore disabled when the Meter is in the 500 function Only the relative and relative percent functions work with the 500 function Press the softkey labeled Menu to access these two functions Testing for Continuity A 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 continuity Continuity is the presence of a complete path for current flow The continuity function detects intermittent opens and shorts lasting as short as 1 ms The Meter uses three indicators for the absence and presence of continuity a resistance reading an open short indicator and a beeper The resistance reading is simply an ohms function measurement However for continuity transitions that are very short the slow True rms Digital Multimeters Making Measurements measurement response of the Meter will not appear in the digital
68. splay language Press the softkey labeled Close to return to normal Meter operation 47 287 289 Users Manual Setting Date and Time The Meter s internal clock is used in the display and for time stamping recorded measurements To change the date and time as well as the display format press the softkey labeled Setup Position the menu selector next to the menu item labeled Display To set the date and time press the softkey labeled Date Time to open the date time menu Next position the menu selector next to either the Set Date item or Set Time item and press the softkey labeled Edit Using and position the cursor on the date or time element to adjust Use and gt to change the selected date or time element value Press OK to complete the action Setting Backlight and Auto Off Timeouts The Meter s backlight and auto off features use timers to determine when to turn off the backlight when to automatically turn the Meter off or enable the battery saver mode To set these timeouts press the softkey labeled Setup and position the menu selector next to the menu item labeled Instrument Position the menu selector next to the menu item labeled Auto Backlight Timeout or Auto Power Off and then press the softkey labeled Edit Use and Y to adjust the time to one of the preset values Press OFF to disable the timeout feature Press the softkey labeled OK to set the selected time Press the softkey labeled Close to return to norma
69. ss Mode the Meter goes to manual mode Select ranges by pressing aas Autoranging is not available when the Low Pass Filter is enabled 20 100 Hz 1 kHz Az aom11f eps Figure 8 Low Pass Filter Making Relative Measurements The Meter displays calculated values that are based on a stored value when set to relative and relative percent mode Figure 9 shows the functions for which the two relative modes are available In addition the two relative modes are available in frequency duty cycle pulse width crest factor and dB est29 eps Figure 9 Relative Mode Functions To activate the relative or relative percent modes while in one of the functions shown in Figure 9 press the softkey labeled Menu Move the menu selector to the menu item labeled REL Next press either the softkey labeled REL or REL The measurement value at the time that either Rel or Rel is enabled is stored as the reference value and displayed in the True rms Digital Multimeters Making Relative Measurements secondary display The present or Live measurement moves to the secondary display and the primary display indicates the difference between the present measurement and the reference value in measurement units for REL and as a percentage for REL When relative percent is enabled the bar graph is a zero centered bar graph that indicates the percentage difference The bar graph
70. ssion A recording session is made up of one or more measurement records Each record contains measurement summary information covering the duration of the record Each record contains the minimum maximum and average value detected over the record s duration In addition to measurement values time stamps are also captured and saved with each record The time stamps consist of the record start time the time the maximum value was detected the time the minimum value was detected and the record end time Some of a records data can be viewed through the Meter s Viewing Trend Data function Viewing all the data that makes up a record can only be viewed on a PC running FlukeView Forms software There are two measurement record types that are captured during a recording session interval and event An interval record covers a user specified interval An event record has a duration determined by the activity of the measured signal and can interrupt an interval record Even if an interval record is interrupted a record will end and a new interval record will begin when the scheduled interval time expires 52 Event records are triggered by the measured signal varying more than an adjustable percentage of the value measured at the start of the record This adjustable percent is called the Event Threshold for recording In addition to the values and time stamps mentioned above an event record also stores whether the signal was stable or uns
71. t disconnect circuit power and discharge all high voltage capacitors before measuring resistance The Meter measures resistance opposition to current flow in ohms Q This is accomplished by sending a small current out through the test leads to the circuit under test To measure resistance set the Meter s rotary switch to ang and set up the Meter as shown in Figure 15 True rms Digital Multimeters Making Measurements Keep the following in mind when measuring resistance 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 The test leads can add 0 1 Q 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 To remove lead resistance from the measurement hold the test lead tips together and press the softkey labeled Menu Next move the menu selector to the menu item labeled REL and press the softkey labeled REL Now all future displayed readings indicate the resistance at the probe tips The Meter s resistance function includes modes to help with resistance measurements Pressing the softkey labeled Menu opens a menu of items that can be used to modify the basic resistance measurement Refer to the appropriate section in this manual to learn more about each menu item 29 287 289 Users Manual In Circuit Re
72. t can be used to modify the basic dc voltage measurement Refer to the appropriate section in this manual to learn more about each menu item To clear all modes and return to the basic volts dc measurement press the softkey labeled Menu Move the menu selector to the item labeled VDC Press the softkey labeled VDC to clear all functions and modes FLUIKE 289 TRUE RS MULTIMETER REST 9 752 We FFF True rms Digital Multimeters Making Measurements est09 eps Figure 12 DC Voltage Measurements 25 287 289 Users Manual Measuring AC and DC Signals The Meter is capable of displaying both ac and dc signal components voltage or current as two separate readings or one AC DC rms value combined As shown in Figure 13 the Meter displays ac and dc combinations three ways ac displayed over dc AC DC dc displayed over ac DC AC and ac combined with dc AC DC Select one of these three displays using the Function and Mode menu softkey labeled Menu Move the menu En to the menu item labeled AC DC At this point three different softkey labels AC over DC 06 13 07 O 123 45 Auto Ranga VAC 23 45VDC 23 45 PS 123 45Vac indicate AC DC F1 AC DC F2 and DC AC F3 Press the softkey that presents these two signals as needed While in any of the three AC DC modes peak measurements frequency duty cycle and period measurements are not
73. t 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 5 07 Table of Contents Title Page Lifetime Limited Warranty AAA INTOdUCUONvusrrr oda Contacting Fluke ooooooncconnnccncconncononcccnoncnancn conc rnncc ronca Safety InfoMine E ennnen SYMDO S coi A eed ae eee SO E AP scent naspehechsshees a EE A e r E ra A a Understanding the Push Buttons Using Auto Repeat coccion irte Understanding the Display AAA Bar Ee EE Status Bar Element AAA Page Alar ed Eege eee eke ands ica Softkey Labels saioei ninica eiiaoe rea Adjusting Display Contras tucan iea E E E Understanding the Rotary Switch Using the Input Terminals ssion a aaa Controlling Meter Power 287 289 Users Manual Powering the Meter On and Off Manually 0 ccceecceeeseeeeeeeeeeeeeeeeseeeeeeeeeeaeeteaeereaees Battery Level Indicator cceseececeseeeeeeeneceeeseeneeeeseeeeesaeaeeseseneeseseeseeeseneeneeneaeesenaees Automatic Power OH Battery Saver Mode iii seceded ee Monat HA ie hele Controlling the Backlight AAA selecting the Range escri bc Understanding Function Menus A Input Alernt Feature iii USING the Into BUON cionado iria inicie asian Hold and AutoHold Mode AAA Measuring Crest Factor AE Capturing Minimum and Maximum Values ssseseeseeeseeeeeeeserettetrsrnstnnrinertrennsrnnsenne Capturing Pe
74. table during the event record duration To be classified as stable the measured signal s value must stay within the selected percentage of the start value for at least one second Measured signals that exceed the percentage threshold in less than one second are classified as unstable See the Setting the Event Threshold Value section later in this manual Note For temperature measurements the AutoHold threshold is a percent of 100 degrees The default AutoHold threshold is 4 of 100 degrees or 4 degrees Celsius or Fahrenheit A record ends when one of the following occurs e The start of a new interval record e A range overload causing the Meter to change range e Anon ranging overload when in manual range or the highest range e The measured value changes more than 4 of the measured value at the start of the record e The recording session terminates A recording session termination can be caused by one of the following Recording session duration expiring H Manually stopping the recording session Setting up a Recording Session Before starting a recording session setup the Meter for the measurements to be recorded If needed change the event threshold value see the Setting the Event Threshold Value section later in this manual Press the softkey labeled Save to open the save menu Using the cursor buttons move the menu selector next to the menu item labeled Record and press the softkey label
75. tch to Y or my and set up the Meter to measure ac volts as shown in Figure 10 The Meter s ac volts function offers a number of modes to provide more details about an ac signal Pressing the softkey labeled Menu opens a menu of items that can be used to modify the basic ac voltage measurement Refer to the appropriate section in this manual to learn more about each menu item To clear all modes and return to the basic volts ac measurement press the softkey labeled Menu Move the menu selector to the item labeled VAC Press the softkey labeled VAC to clear all functions and modes 22 ELLIKE 289 rave RMS MULTIMETER Setup Ss Switch AD ses Box y O Wi eil of a 7 Je A A est07 eps Figure 10 AC Voltage Measurements Using LoZ for Voltage Measurements Model 289 only A Caution Do not use the LoZ mode to measure voltages in circuits that could be damaged by this mode s low impedance 3 kQ To eliminate ghost voltages the Meter s LoZ function presents a low impedance across the leads to obtain a more accurate measurement To make a LoZ measurement set the rotary switch to The Meter displays the ac voltage in the primary display and the dc voltage in the secondary display During LoZ measurements the Meter s range is set to 1000 volts in the manual ranging mode In LoZ both and are disabled There are no additional modes for this function
76. 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 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 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 affec
77. tteries with 1 5 volt AA batteries NEDA 15A IEC LR6 Observe proper polarity Reinstall the battery door assembly and secure it by turning the screw one half turn clockwise Replacing the Fuses Referring to Figure 30 examine or replace the Meter s fuses as follows 1 Turn the Meter off and remove the test leads from the terminals Remove the battery door assembly by using a standard blade screwdriver to turn the battery door screw one half turn counterclockwise Remove the fuse by gently prying one end loose then sliding the fuse out of its bracket Install only Fluke specified replacement fuses with the amperage voltage and interrupt ratings shown in Table 11 Reinstall the battery door assembly and secure it by turning the screw one half turn clockwise True rms Digital Multimeters Test Lead Storage Maintenance Figure 29 shows the proper method for storing the test leads with the Meter Figure 29 Test Lead Storage est41 eps 59 287 289 Users Manual est32 eps Figure 30 Replacing Batteries and Fuses 60 In Case of Difficulty If the Meter does not seem to work properly i Check that all batteries are installed with the correct polarity Examine the case for damage If damage is detected contact Fluke See the Contacting Fluke section earlier in this manual Check and replace as needed the batteries fuses and test leads Review this manual to verify corre
78. unctions and modes and returns the Meter to the primary function selected by the rotary switch For example assume that the Meter is setup for frequency Hz and is displaying in relative mode as selected through the menu in Figure 5 Moving the menu selector to the menu item labeled VAC and pressing the softkey labeled VAC clears both frequency and relative selections leaving the Meter in volts ac only Menu selections are remembered for each rotary switch position For example selecting REL for the volts ac position causes REL to be selected the next time the menu is opened in volts ac even though in the interim Hz ms was selected from a similar menu for the millivolts ac function Up to two columns of four items each are displayed at any one time If more than eight menu items are available for a primary function 4 appears in the lower right hand corner of the page area of the display indicating more menu items are available With the menu selector on one of the items in the left column press to scroll the screen horizontally and reveal the off screen menu items Conversely with the menu selector on an item in the right hand column press to reveal the off screen menu items Input Alert Feature AA Warning To avoid circuit damage and possibly blowing the Meter s current fuse do not place the probes across in parallel with a powered circuit when a lead is plugged into a current terminal This causes a short ci
79. up Options Note A setup reset also resets the temperature offset and dBm reference to their default value In addition to resetting the setup variables pressing the softkey labeled Meter will also clear all saved measurement screens MIN MAX screens peak screens and recording records The Meter s clock is reset to a default value as well Setting Display Contrast Meter display contrast can be adjusted through the Meter s setup menu Open the setup menu by pressing the softkey labeled Setup and position the menu selector next to the menu item labeled Contrast Pressing the softkey labeled F1 increases display contrast while the softkey labeled F2 decreases contrast Contrast can also be set through the and buttons when not being used to move between menu selections Setting the Meter s Language The Meter comes from the factory with the display language set to English To select another language open the setup menu by pressing the softkey labeled Setup Move the menu selector next to the menu item labeled Display Next press the softkey labeled Format F2 to open the format menu If not already selected move the menu selector to the left of the menu item labeled Language and press the softkey labeled Edit The currently selected language becomes highlighted and appears to the right of the language Use and to scroll through the available languages then press the softkey labeled OK to set the Meter s di
80. ves battery power by shutting down circuits not necessary for the selected function including the display However the LED surrounding the power button will continue to flash to indicate the Meter is still collecting data The Meter wakes up from battery save mode under the following conditions e A button is pressed e Therotary knob is moved e A lead is removed or inserted into a current input jack e The Meter changes range IR Communications begin These condictions only awaken the Meter and does not change the Meter s function or mode of operation Controlling the Backlight If viewing the display becomes difficult in low light conditions press to activate the LCD backlight The backlight button cycles the backlight through three states low high and off The Meter displays a message if the battery level will not support the backlight operation To conserve battery life a user adjustable timeout controls how long the backlight stays on The default timeout is 5 minutes To change the timeout refer to Setting Backlight and Auto Off Timeouts later in this manual True rms Digital Multimeters Selecting the Range Selecting the Range The Meter s selected range is always displayed above the right hand end of the bar graph as the range indicator Pressing switches the Meter between manual and autoranging It also cycles through the Meter ranges when manual ranging is enabled Note You can
81. ze the display for any function press toto Only the mini measurement display and hazardous voltage icon 4 continue to indicate the actual input The battery level indicator is also active The Meter s softkeys are relabeled for saving the frozen reading or activating the AutoHold mode If torp is pressed while MIN MAX record peak record or a recording session is in progress the display freezes but the data acquisition continues in the background Pressing again updates the display to reflect data that was acquired during the hold Pressing the softkey labeled AutoHOLD activates AutoHold if the Meter is not in the Peak MIN MAX or Record modes AutoHold operation monitors the input signal and updates the display and if enabled sounds the beeper whenever a new stable measurement is detected A stable measurement is one that does not vary more than a selected adjustable percentage AutoHold threshold for at least one second The Meter filters 15 287 289 Users Manual out open lead conditions so the Meter leads can be moved between test points without triggering a display update Note For temperature measurements the AutoHold threshold is a percent of 100 degrees The default AutoHold threshold is 4 of 100 degrees or 4 degrees Celsius or Fahrenheit Pressing while in AutoHold mode forces the Meter s display to update with the present measurement just as if a stable measurement had been detected To set the Auto

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