User's Guide Handheld MultiScope Model 381285
Contents
1. The F1 slope key selects either a rising or falling trigger edge The F2 AD and V key adjust the trigger level The F3 EXIT key to return to the main screen F4 MORE function The key redefines the function keys Single Glitch Position EXIT F1 F2 F3 F4 F1 SINGLE shot The SINGLE key will trigger a single measurement when the key is pressed open a sub menu which allows time expansion or compression for enhanced waveform viewing The F1 RESET key will trigger new measurement The F2 and F3 arrow key will expand or compress the time divisions and trigger a new measurement The F4 EXIT key returns the screen to the More menu RESET A v EXIT F1 F2 F3 F4 11 V2 1 03 06 F2 GLITCH capture RESET A v EXIT F1 F2 F3 F4 The Glitch key sets the meter to trigger a measurement on any single event which causes an overrange indication or is greater than one vertical division or is greater than 1096 of one horizontal division The F1 RESET key will trigger a new measurement SEARCHING will appear the display until a pulse arrives that triggers the event The F2 and F3 arrow keys adjust the time per division and trigger a new measurement The EXIT key returns the screen to the More menu Trigger Point A2. must exceed 10 of one time division Position a POSITION RESET A v EXIT F1 F2 F3 F4 The key adjusts the vertical position of the waveform The F1 RESET key sets the vertical position cursor to the default O position The F2 and F3 arrow keys adjust the vertical position of the waveform The F4 EXIT key returns the screen to the More menu 12 V2 1 03 06 GED CURSOR FUNCTION The cursor function measures time difference or voltage difference between two cursors on the screen Selecting AV will produce two horizontal cursors and selecting one of the At functions will produce two vertical cursors The amplitude or time difference between the two cursors is displayed on the screen AV At At 15 F1 F2 F3 F4 I 5 2 2 kHz Tris 666 6m __ 20 04 SOY AW F1 Voltage difference Measures the voltage difference between the upper and lower cursor For example the voltage difference cursor function can be used to measure the peak to peak voltage Select Upper or Lower and press the arrow keys to set the location of the cursors At F2 of one cycle Measures the time between the left and right cursor and displays it as a percentage of one cycle of the input waveform Select Left or Right and press the arrow keys to set the location of the cursors At F3 Time difference Measures the time difference between the left and rig
3. Frequency Counter Signal Output Amplitude 2 5Hz to 78kHz Square wave 50 duty cycle 5V p 300 10 steps approx P P Automotive RPM RPM1 RPM2 0 12000 rpm DIS electronic type engine 2 Distributor type engine cycle engine 4 cycle engine Logic Analyzer Sweep Mode 125ns to 2s per division 23 divisions Diode Test Open circuit voltage 5V max dB 80 to 80dB 2 3 8 16 50 75 93 110 125 135 150 300 600 900 1000 1200 ohms reference Continuity Buzzer sounds for 600 Auxiliary Input 400 0mV DC range scaled for direct display of temperature relative humidity or current 1 unit per mV 6 V2 0 03 05 DIGITAL STORAGE OSCILLOSCOPE Channels 1 Bandwidth DC to 5MHz Sample rate 25Mega samples per second Vertical Sensitivity 10mV div to 200V div 14 divisions Time base 125ns to 2sec per division 23 divisions Glitch capture 500nsec minimum Trigger Level adjustable 2 divisions in 0 1 steps Positive or negative edge moving trigger COMMON SPECIFICATIONS Display 160x160 pixel graphic LCD with EL backlight Viewing Area 2 48 x 2 48 63 x 63mm Measurement rate Digital 4 times sec Bargraph 7 times sec AC Response True rms Crest Factor 3 at full scale 5 at half scale Input Impedance 10 for numerical display 1 for graphical display Auto Power Off 30 minutes with disable feature Min Max Avg Displays minimum average amp maximum readings ove
4. 5 USE ONLY FRESH BATTERY OF THE RECOMMENDED SIZE AND Remove the old or weak battery so it does not leak and damage the unit 6 IF THE METER IS TO BE STORED FOR A LONG PERIOD OF TIME the battery should be removed to prevent damage to the unit BATTERY REPLACEMENT CAUTION Do not use non rechargeable batteries alkaline carbon zinc etc with meter s AC Power adapter The AC Power adaptor maybe used whether or not the rechargeable Ni Cd batteries are installed Disconnect and remove the test leads Remove the rubber holster if installed Lift the Tilt Stand and remove the two screws using Philips screw driver Lift the two battery covers up to remove them Press Remove the Tilt Stand 3 Align the three batteries as shown in the diagram observe polarity and press down until they snap into the battery holder 7 Snap the two battery covers back into place and put the Tilt Stand in place 8 Replace and tighten the two battery door screws NOTE If your meter does not work properly check the fuses and battery to make sure that they are still good and that they are properly inserted WARNING To avoid electric shock do not operate your meter until the battery covers are in place and fastened securely NOTE When the Battery becomes exhausted or drops below operating voltage the low battery symbol will appear in the top area of LCD display with a sound The alkaline battery should be replaced if alk
5. 5 ALWAYS discharge capacitors in power supplies and disconnect the power when making resistance or diode tests 6 ALWAYS turn off the power and disconnect the test leads before opening the back to replace the fuse or batteries 7 NEVER operate the meter unless the back cover is in place and fastened securely International Safety Symbols This symbol adjacent to another symbol or terminal indicates the user must refer to the manual for further information This symbol adjacent to a terminal indicates that under normal use hazardous voltages may be present Double insulation WARNING The WARNING symbol indicates a potentially hazardous situation which if not avoided could result in serious injury or death inb CAUTION The CAUTION symbol indicated a potentially hazardous situation which if not avoided may result in minor or moderate injury 4 V2 0 03 05 Specifications DIGITAL MULTIMETER WARNING MEASUREMENT OF VOLTAGE IN OSCILLOSCOPE MODE GREATER THAN 250VAC OR 360VDC WILL RESULT IN PERMANENT DAMAGE AND POSSIBLE INJURY DC Voltage Accurac 0 001V 0 01V 0 3 rdg 5dgt AC Voltage True rms Range Resolution Accurac 400V TON Resistance 0 5 rdg 10dgt DC Current 0 01 aa AC Current True rms 0 01 1 2 rdg 10400 4 rdg 10dgt 400mA o M 4 1049 5 V2 0 03 05 Capacitance 2 rdg 10401
6. instrument for service during or beyond the warranty period contact the Customer Service Department at 781 890 7440 ext 210 for authorization or visit our website at www extech com click on Contact Extech and go to Service Department to request RA number A Return Authorization RA number must be issued before any product is returned to Extech The sender is responsible for shipping charges freight insurance and proper packaging to prevent damage in transit This warranty does not apply to defects resulting from action of the user such as misuse improper wiring operation outside of specification improper maintenance or repair or unauthorized modification Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct indirect incidental or consequential damages Extech s total liability is limited to repair or replacement of the product The warranty set forth above is inclusive and no other warranty whether written or oral is expressed or implied Calibration and Repair Services Extech offers repair and calibration services for the products we sell Extech also provides NIST certification for most products Call the Customer Service Department for information on calibration services available for this product Extech recommends that annual calibrations be performed to verify meter performance and accuracy a Support line 781 89
7. if the value is less than the minimum limit LOW will be displayed SIG OUT The Signal Out function generates a 5V pk pk square gt wave of 2 5Hz to 78kHz e 1 Insert the test leads into the positive SIG OUT and the COM jacks He 2 Setthe function switch to SIG OUT position PA 3 Press 2 or F3 V keys to approach the LJ desired output frequency Hold the key for three seconds for rapid adjustment TIME aaha m 4 Press F1 Fine Adjust and then use the RE Output arrow keys to select the nearest frequency available to the desired frequency WARNING Never attempt a Voltage measurement if a test lead is in SIG OUT position Doing so may result in personal injury or meter damage 18 V2 1 03 06 FREQUENY COUNTER DUTY CYCLE and DWELL Insert the black test Lead into the negative COM jack and red test lead into the positive COUNTER jack Turn the rotary switch to the Freq Counter position he F1 Frequency key to measure and display the frequency he F2 Duty to see the Duty Cycle in percent and the Dwell Angle in 1 Press t Press t degree S Press the key to change the number of cylinders AUTOMOTIVE RPM Insert the black test Lead into the negative COM jack and red test lead into the positive COUNTER jack Turn the rotary switch to the RPM position Connect the inductive pick up to the meter and clamp the secondary igni
8. the A position Press the 8 key to toggle between AC and DC measurements Press the key to select the or function Connect the test probe tips in series with the circuit under test The display will indicate the proper decimal point value and symbol Cni oes CAPACITANCE WARNING To avoid electric shock disconnect power to the unit under test and discharge all capacitors before taking any capacitance measurements Remove the batteries and unplug the line cords 1 Insert the black test lead into the negative COM jack and the red test lead into the positive CAP jack 2 the rotary switch to the CAP position The meter will turn on in the capacitance autoranging mode 4 Touch the test lead to the capacitor to be tested The display will indicate proper decimal point value and symbol Note Manual ranging is not available in the Capacitance function e 16 V2 1 03 06 The Relative feature available in Voltage Resistance Current and the AUX functions displays the difference between a stored reference value and the actual measured value Actuation of the relative mode automatically switches the meter to manual ranging 1 When the F1 Soft key is pressed the value in the display is stored as the reference value 2 Ablinking icon will appear will appear display indicating the mode is in active 3 The displayed value will be the difference between the
9. 0 7440 Technical support Extension 200 E mail support extech com Repair amp Returns Extension 210 E mail repair extech com Product specifications subject to change without notice For the latest version of this User s Guide Software updates and other up to the minute product information visit our website www extech com Extech Instruments Corporation 285 Bear Hill Rd Waltham MA 02451 Copyright 2005 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form 3 V2 0 03 05 Safety This meter has been designed to be safe in use but the operator must use caution in its operation The rules listed below should be carefully followed for safe operation 1 NEVER apply voltage or current to the meter that exceeds the specified maximum for the function selected Input Limits Function Maximum Input VDC 1000V DC within 10 seconds VAC 700V AC within 10 seconds Ohms 250V DC AC within 10 seconds mA DC AC 250V 500mA fused 20A DC AC 250V 20A fused 20A for 30 seconds max each 15 minutes Logic Analyzer 50V p p 2 USE EXTREME CAUTION when working with high voltages 3 DO NOT measure voltage if the voltage on the COM input jack exceeds 500V above earth ground 4 NEVER connect the meter leads across a voltage source while the function switch is in the current resistance or diode mode Doing so can damage the meter
10. HELP Display the basic meter warning Input jack locations and test procedures RS232 also press for 3 seconds to enable the RS232 interface Toggle between AUTORANGE and MANUAL RANGE Toggle between AC and DC measurements in V and A functions Logic analyzer function HOLD Freezes the reading on the display lt Operation of the scope function AV At At A1 t value display NOTE Soft key Reaction Time The soft keys react ONLY AFTER 250msec millisecond for all except in the Oscilloscope Mode 500msec V2 1 03 06 Operation Oscilloscope AC and DC VOLTAGE WARNING MEASUREMENT OF VOLTAGE IN OSCILLOSCOPE MODE GREATER THAN 250VAC OR 360VDC WILL RESULT IN PERMANENT DAMAGE AND POSSIBLE INJURY WARNING Risk of Electrocution The probe tips may not be long enough to contact the live parts inside some 240V outlets for appliances contacts can be recessed deep in the outlets As a result the reading may show 0 volts when the outlet actually is live Make sure the probe tips are contacting the metal contacts inside the outlet before assuming that no voltage is present CAUTION Do not measure AC or DC voltages if a motor on the circuit is being Switched ON or OFF Large voltage surges may occur during the ON or OFF operations that can damage the meter CAUTION To avoid meter damage do not apply 700V AC or 1000V DC for more than 10 seconds 1 Insert the black test lead banana plug into the n
11. User s Guide EXTECH INSTRUMENTS Handheld MultiScope Model 381285 335 24 44 kHz Trig BB8B BnU f MENGE nud v Saab 7ate s di M ML otis reiner nene CO C2 gj 9 SIG OUT Freq Counter RPM SETUP 381285 EXTECH 5MHz MultiScope WARNING MEASUREMENT OF VOLTAGE IN OSCILLOSCOPE MODE GREATER THAN 250VAC OR 360VDC WILL RESULT IN PERMANENT DAMAGE AND POSSIBLE INJURY Table of Contents Section Warranty Safety Specifications Symbols and Annunciators Soft Keys and Sub Menus Operation Oscilloscope AC and DC Voltage Volt Div Trigger More Single Glitch Position Cursor Operation Digital Multimeter AC and DC Volts Resistance Continuity Diode AC and DC Current Capacitance Relative Avg Min Max Peak Hold Limit Sig Out Frequency Counter Duty Cycle and Dwell Automotive RPM Logic Analyzer Set Up Aux Backlight Auto Manual Range Help Print Tilt Stand RS232 Commuincations Maintenance Battery Replacement Fuse Replacement V2 0 03 05 Warranty EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment a six month limited warranty applies on sensors and cables If it should become necessary to return the
12. ach location Locations with no data will be left blank 3 Press the 4 ien Y Y or M arrow keys to scroll the arrow cursor up down through the 15 memory locations 4 Atthe selected memory location a Press the F1 key to save the text or graphical display b Press the F2 key to recall and display the saved data c Press the F3 key to clear the saved data from memory 7 Press the key to exit the feature PRINT The display can be directly printed to the recommended thermal printer 1 Connect the thermal print cable to the top of the meter 2 Turn the thermal printer power on 3 Press the SAVE PRINT key for 4 seconds TILT STAND The Tilt Stand can be placed either in the locked stand position for flat surface use or in the hinged position for hanging use 1 For use on a flat surface lift the stand to approximately a 55 degree to Release ff to Lock angle and push in until the Stand locks in the locking notch v 2 To hang the meter squeeze the Locking Notch legs of the stand and remove it from the meter Turn the stand 180 degrees and replace in the holder The stand will now swing free over the top of the meter 21 V2 1 03 06 RS232 COMMUNICATIONS Installation 1 2 3 4 5 Initialization Connect the RS232 cable Mullett wary Made zigixi 2181 xl 1 Operation 1 2 3 Start the PC Insert the Software Program diskette into
13. aline batteries are installed If rechargeable batteries NiMH are installed the NiMH batteries will be automatically recharged when the AC Adapter is connected NiMH recharging time will be reduced if the battery is charged with the meter off If the NiMH Battery is totally discharged very rare case the meter may not operate properly with the AC Adapter In this case recharge the NiMH battery with the AC Adapter for about 5 minutes with the meter s rotary switch in the OFF position 3 0 UN 23 V2 1 03 06 FUSE REPLACEMENT WARNING To avoid electric shock do not operate your meter until the battery covers are in place and fastened securely NOTE If your meter does not work properly check the battery and fuses to make sure that they are still good and that they are properly inserted 1 2 3 4 Disconnect and remove the test leads Remove the rubber holster if installed Lift the Tilt Stand and remove the two battery cover screws Lift the two battery covers up to remove them remove the tilt stand and remove the batteries Remove the one screw at the rear bottom of the rear case and the two screws in the battery compartments Lift the rear case far enough to gain access to the fuses located opposite the input terminals Replace the blown fuse There are two fuses 250V 500mA for the 400mA range and 250V 20A for the 20A range Replace the bottom case and secure with three screws Repla
14. ce the battery covers and tilt stand and secure with two screws CAUTION Always replace fuses with fuses of the same size and value CAUTION Do not open the top area of bottom case near the display The display is connected with a sensitive pin socket and printed circuit board Do not touch this area or attempt to remove any components in this area 24 V2 1 03 06
15. drive A Select START and then RUN from the Windows menu bar Type AA SETUP the OPEN box and select OK Follow the installation instructions on the screen between the meter and the vi u u PC s serial port Turn the Rotary Switch to the measurement function desired Press and HOLD the HELP IRS232 key for 4 seconds to enable the RS232 output A blinking RS232 will appear on the display Select the MultiScope m icon in the START PROGRAM menu to 103700 177 8 ACU launch the program For press Pt NONAML Komi In the MultiScope opening screen select Setup Comm port Select the proper COM port and click OK Setup Menu a Select Setup Sampling Time to set the sampling data record time for each measurement 250ms 500ms 1s 2s 5s 10s 30s 1min 10min 30min 1hr 10hr 1day b Select Setup dB to select the dB reference impedance Select Setup Baudrate to select the communications baud rate View Menu a Select View Bar to display the data as a bar plot b Select View Line to display the data as a line plot Select View Text to display the data in a numeric format Run Menu Select Star Stop or Pause to control the datalogging File Menu a Select File Save to save the recorded data b Select File Open to open an existing file c Select File Print to
16. eak value of the measured parameter the peak max and peak min values The meter will beep whenever a new MIN or MAX is captured Press F1 Restart reset the values for a new run Press F2 RUN PAUSE to continue measuring or to hold the MIN MAX values Press LINE to change the history graph type line or bar Press F4 EXIT to return to the initial menu o mw Ro 17 V2 1 03 06 LIMIT Compare The Limit feature available in Voltage Resistance and Aux functions allows for testing or selection of components between a settable minimum and maximum limit The measured value and HIGH LOW or PASS will be displayed 1 Press the LIMIT soft key to enter the LIMIT e gt RANGE mode 4 2 Press 4 arrow keys to select the Maximum or Minimum digit for editing The digit will blink when selected A 994 3 Press cursor up or V logic down arrow key to adjust the value of the digit F H 4 Press the SET key to store the value and igi MAXIMUM 1 898 move to the next digit J MINIMUM 81356 ER 5 Adjust all minimum and maximum digits as needed to set the limits TIME 0 50 6 Ifthe measured value fall between the maximum and minimum limits the display 4 gt Set EXIT will indicate PASS 7 Ifthe measured value is greater than the maximum limit HIGH will be displayed and
17. egative COM jack and the red test lead banana plug into the positive V jack Set the function switch to the V position Select AC or DC voltage using the key default is AC Press and momentarily hold the key to switch to the graphical display Touch the test probe tips to the circuit under test and observe the waveform Ord Peak peak voltage Frequency Trigger slope Cursor width Trigger level Position Waveform Horizontal time scale Vertical volt scale 10 V2 1 03 06 Oscilloscope Functions Time Volt A IDiv IDiv Trigger More F1 F2 F3 F4 F1 Time per division horizontal IDiv AUTO A v MANUAL EXIT F1 F2 F3 F4 Time divisions are selected automatically when in the autoranging mode The time division will vary to display the best wave pattern in the autoranging mode or the time division can be set manually using the F1 and the sub menu arrow AW keys symbol indicates that autoranging has been selected F2 Volts per divisions vertical IDiv AUTO A v MANUAL EXIT F1 F2 F3 F4 Voltage divisions are selected automatically when in the autoranging mode The voltage division will vary to display the best amplitude in the autoranging mode or volts division can be set manually using F2 and the sub menu arrow W keys The symbol indicates that autoranging has been selected F3 TRIGGER level 99 5v A v EXIT F1 F2 F3 F4
18. ht cursor For example the time difference cursor function can be used to measure pulse width or the period of one cycle Select Left or Right and press the arrow keys to set the location of the cursors At F4 Frequency Measure the frequency between the left and right cursor For example the frequency cursor function can be used while observing a waveform Select Left or Right and press the arrow keys to set the location of the cursors 13 1U div 26Grs div m EXIT Lower v Left Right AT CES gt I 85 18UacE P 49 99 kHz Tris st 16 GGus V2 1 03 06 Operation Digital Multimeter AC and DC VOLTAGE WARNING Risk of Electrocution The probe tips may not be long enough to contact the live parts inside some 240V outlets for appliances contacts can be recessed deep in the outlets As a result the reading may show 0 volts when the outlet actually is live Make sure the probe tips are contacting the metal contacts inside the outlet before assuming that no voltage is present CAUTION Do not measure AC or DC voltages if a motor on the circuit is being Switched ON or OFF Large voltage surges may occur during the ON or OFF operations that can damage the meter CAUTION To avoid meter damage do not apply 700V AC or 1000V DC for more than 10 seconds 1 Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive V jac
19. k Set the function switch to the V position Select AC or DC voltage using the 45 key default is AC Touch the test probe tips to the circuit under test Read the voltage in the display The display will indicate the proper decimal point value and appropriate symbols Time to auto power off Frequency Voltage BOB Bargraph 0 20 dB Elapsed time TIME 02n52m dB reference Sub menu indicator 14 V2 1 03 06 RESISTANCE WARNING To avoid electric shock while taking any resistance measurements disconnect power to the unit under test and discharge all capacitors Remove the batteries and unplug the line cords 1 Insert the black test lead into the negative COM jack and the red test lead into the positive jack 2 Set the function switch to the position 3 Touch the test probe tips across the circuit or part under test It is best to disconnect one side of the part under test so the rest of the circuit will not interfere with the resistance reading 4 Readthe resistance in the display The display will indicate the proper decimal point value and symbols CONTINUITY WARNING To avoid electric shock never measure continuity on circuits or wires that have voltage on them 1 Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive jack 2 Setthe function switch to the 4 p
20. ode peak hold manual range relative 2 stroke DIS Engine 4 stroke Engine RUN SAVE SINGLE SLEEP TEST TIME TRIG V Q Rh 3 4 ri At Mit AN 1 restart peak hold min max mode saves present signal in memory single waveform auto shut off self test manually change time base frequency trigger volts ohms resistance relative humidity buzzer continuity diode cursor left or right cursor up or down low battery over range on V AC adaptor in use signal pulse width frequency signal amplitude time to auto power off trigger slope DUTY CYCLE Dwell Degree V2 0 03 05 Soft Keys Sub Menus Soft keys are located directly below the LCD display and perform multiple operation as indicated on the LCD and determined by the function selected by the rotary switch Some functions will produce a sub menu on the display for further selection Operation of the menus and sub menus is described in the appropriate operation paragraph 1004 s diu 58mU div AAAA ac F1 to F4 Soft keys function indicated on graphical display Toggle between the multimeter and graphical display mode also power reset key to re activate power if the auto shutoff is in effect E Save and recall measurement data or graphical display ENT also press for 3 seconds to print data or the graphical display
21. osition Press the F2 key to select the Continuity function 4 Touch the test probe tips to the circuit or wire you wish to check If the resistance is less than 600 the audible signal will sound d DIODE test WARNING To avoid electric shock do not test any diode that has voltage on it 1 Insert the black test lead into the negative COM jack and the red test lead into the positive jack 2 Set the function switch to the position 3 Press the F2 key to select the function 4 Touch the test probe tips to the diode or semiconductor junction you wish to test note the meter reading 5 Reverse the probes polarity by switching probe position Note this reading 6 diode or junction can be evaluated as follows If one reading shows a voltage value approximately 0 2V to 0 7V and the other reading shows OVER the diode is good If both reading show OVER the device is open If both reading are very small or 0 the device is shorted 15 V2 1 03 06 AC and DC CURRENT mA 20A WARNING To avoid electric shock do not measure AC current on any circuit whose voltage exceeds 250V AC CAUTION Do not make current measurements on the 20A scale for longer than 30 seconds once every 15 minutes Exceeding 30 seconds may cause damage to the meter and or the test leads 1 Insert the black lead into the negative COM jack and the red test lead into the positive mA or 20A jack Turn the rotary switch to
22. print the file To Capture a graphical display a Inthe View menu select either the Line or Bar display Capture will not occur with Text display selected b Onthe meter Press HOLD key The flashing HOLD icon will appear on the top center of the display and after a five second delay the captured graphical display will appear in the display window of the monitor The captured display can be printed or saved to a file c Capturing a graphical display interrupts the logging session Press HOLD once more to exit the capture screen and return to the datalogging screen Select RUN then START to resume logging 22 V2 1 03 06 MAINTENANCE WARNING To avoid electric shock disconnect the test leads from any source of voltage before removing the back cover or the battery cover WARNING To avoid electric shock do not operate your meter until the battery cover is in place and fastened securely This multimeter is designed to provide years of dependable service if the following care instructions are performed 1 KEEP THE METER DRY If it gets wet wipe it off 2 USE AND STORE THE METER IN NORMAL TEMPERATURES Temperature extremes can shorten the life of the electronic parts and distort or melt plastic parts 3 HANDLE THE METER GENTLY AND CAREFULLY Dropping it can damage the electronic parts or the case 4 KEEP THE METER CLEAN Wipe the case occasionally with a damp cloth DO NOT use chemicals cleaning solvents or detergents
23. r time Hold Captures displayed reading Overrange Indicates DOVER Storage 15 pages text or graphics Dimensions 3 6x7 6x2 2inches 92x192x55mm Weight 1 0lbs 450gm Power 6 size AA cells 6 size AA NiMH batteries 3 dual cell NiMH Battery Packs or AC adaptor Charging time 10 hours approx Operating time Alkaline 6hrs approx NiMH 6hrs approx Temperature Operating 32 F to 104 F 0 C to 40 C Storage NiMH batteries removed 4 F to 140 F 20 C to 60 C Charging 32 F to 113 F 0 C to 45 C 7 V2 0 03 05 Meter Description X dA eX IX Oe RS232 pc interface connector LCD Dot matrix display Soft function keys Display storage key Scope multimeter key Function switch Sig Out mA Frequency jack 20A jack AC adaptor jack Help key Hold key Mode keys Com jack Volts ohms cap diode jack Symbols and Annunciators r 335 QaUace ye 24 94 kiz Teid BBB Ba b A AC AUTO AVG CALL CLEAR dB DC F LIMIT GLITCH Hz MANU RESET MAX MIN ms C PAUSE P H RANGE REL RPM 1 RPM 2 Ampere alternating current autoranging average recall stored data remove stored data decibel direct current farads capacitance compare glitch waveform hertz frequency manual reset maximum minimum milliseconds degrees centigrade degrees fahrenheit pause in min max peakhold single glitch m
24. stored reference value and the measured value 4 Press the F1 REL to exit relative mode Average Minimum Maximum feature available in Voltage Resistance and Current displays the Max Avg and Min measured values with the elapsed time The data is also plotted as either a bar or line graph Update is once per second 1 Press F4 AVG MIN MAX soft key to inililize this feature The range currently e RANGE 48Ko sed will be held 2 d 1 3 B Ka 2 The display will indicate the maximum value the average value and the AVER Ke go 99 18 TE 2 05 minimum value since the feature was M N 00101 ko 00 02 68 initiated The meter will beep each time the or MIN value is updated 3 elapsed time for each value is displayed next to the value The time format is hrs min sec 4 Press F1 Restart to reset the time and LINE begin recording a new series Restart PAUSE EXIT 5 Press F2 RUN PAUSE to run or pause the recording 6 Press LINE BAR to change the history graph type line or 7 Press F4 EXIT to leave the Max Min Avg feature PEAK HOLD The Peak Hold feature available in Voltage and Current displays the Max and Min measured values The data is also plotted as either a bar or line graph Update is once every 250ms 1 Press F2 Peak Hold key to enter the this function 2 TheLCD will display the p
25. tion wire of the engine 1 2 3 4 5 Press t the F4 rpm 1 key for distributorless electronic type engine 2 stroke DIS or rpm 2 key for conventional 4 stroke distributor type engines Read the rpm on the display NOTE To avoid interference from noise or outside sources keep the meter away from spark plugs or coil wires LOGIC ANALYZER WARNING To avoid meter damage never measure signals greater than 40V dc when in the 1 5 Logic Analyzer function Insert the black test lead into the negative E AUTO COM jack and the red test lead into the 40 ositive SCOPE input jack 5 999 Set the function switch to V and change to dc with key pum 2 z Press the 9 key Yde Read the voltage and frequency timing chart Press F1 Press F2 trigger slope Press F3 Time Div to change the sweep time r L _ L Restart to start the logic chart cursor i om us isi i TIME G3h3im to select a rising or falling 3 CMOS Restart Tine RANGE Time divisions will vary to display the best wave pattern in the autoranging mode or they can be set manually using the arrow keys Press F4 RANGE to select the logic type Select from TTL 3V CMOS or 5V CMOS Press the Ke e l amp key to exit logic function 19 V2 1 03 06 SET UP The setup function provides a means to set measurement default conditions and also pro
26. tor being used key to return to the previous menu Press the F4 EXIT Auxiliary key key or the F3 High Current key to match the 20 V2 1 03 06 BACKLIGHT Backlighting improves the display visibility in areas with low ambient light A timeout function can be set in the SET UP function Extended use of backlighting will reduce the battery life 1 Press the HOLD key for 4 seconds to turn the EL backlighting on 2 Press the key for 4 seconds to turn the EL backlighting off AUTO RANGE MANUAL RANGE SELECTION The meter will turn on in the auto ranging mode For most application this is the easiest and most accurate method of measurement For measurements that require the range to be held 1 Press the key The display will change from AUTO to RANGE with the full scale value displayed 2 Each time the key pressed the next available range will be set 3 return the AUTO range hold the 153 key for 4 seconds HELP Press the HELP key to display any warnings test lead connection diagrams and instructions for the function selected Press the F1 and F4 arrow keys to scroll through the procedures Press HELP to exit the screens SAVE In the SAVE mode 15 digital or graphical displays can be saved in memory 1 Press the SAVE key to enter this feature 2 The display will list 15 memory locations and indicates what type of data is stored in e
27. vides access to a Self Test Auxiliary inputs and a Users Manual key to move the selection pointer to the desired item Press the F1 Next Item Press the F2 4 Press the F3 key to select the desired condition Save Printer Baud rate Parity bit dBm reference Beeper Sleep mode Back light EPSON 102 key to save the selection 1200bps 2400bps 4800bps 9600bps NONE 20 40 80 160 500 750 930 1100 1250 1350 1500 3000 6000 9000 10000 12000 enable disable enable disable OFF 15s 30s 60s no limit Press the F4 key to redefine the function keys Press the F1 Press the F2 Self Test Auxiliary current multimeter adaptors Press the F3 AUX UsersManual key to run a system and memory self test key to select auxiliary input from temperature humidity or high key to access the built in users manual The auxiliary selection allows direct display of F RH High DC Currents in the correct units when the meter is used with an external DC Adapter The external DC Adapter should output 1mV DC unit of measure 1 2 Insert the black adapter banana plug into the negative COM jack and red adapter banana plug in to the positive AUX jack Set the function switch to the SET UP position Press the F4 Press the F1 More key and then the F2 key F2 RH adap
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