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19

FREQUENCY MEASUREMENT

FRQ CTR - Frequency Counter mode is used 
for measuring the frequency of an alternating 
voltage signal.

Contact the probe tip to the circuit and it 
will display the frequency in Hertz (cycles 
per second) and Duty Cycle on the top and 
also displaying the + Pulse Width and - Pulse 
Width in milliseconds on the bottom.

The 

Maestro

 can measure frequencies from 

1Hz to 9999Hz.

FRQ CTR can be used for tests where fre-
quency or pulse width are needed such as 
MAF sensors, wheel sensors, etc.

Summary of Contents for PRO SERIES THE MAESTRO

Page 1: ...PRO SERIES THE MAESTRO WWW POWERPROBETEK COM Conforms to UL STD 61010 1 61010 2 030 and 61010 031 Certified to CSA STD C22 2 NO 61010 1 61010 2 030 and 61010 031 ...

Page 2: ...d Measuring Operations DC Voltage in VDC Mode 12 Activating Components 13 Resistance Testing on OHM Mode 14 Power Feed Test 15 AC Voltage Measurement RMS 17 AC Voltage Measurement P to P 18 Frequency Measurement 19 Trace Mode 20 Advanced Testing Operations Fuel Injector Mode 23 Power Probe TEK Pro Series APP 25 Pairing 27 Tool Repair Operations 28 Specifications 29 Warranty 30 ...

Page 3: ...o the tip of the tool You can energize and activate components to verify their correct operation This is real dynamic component testing and the only true way to test an active component 2 Pro Series Maestro is always connected to the ve hicle s battery so the tool maintains a permanent con nection to the source power and ground voltage Circuit voltage checks are quickly performed with just a singl...

Page 4: ... can leak high volt age causing a potential electrocution risk Check the Maestro cables for any insulation damage or bare wires If damaged do not use the tool Please contact Power Probe TEK Technical Support Use only shrouded leads and accessories authorized by Power Probe to minimize exposed conductive electrical connections to eliminate shock hazard Do not open the Maestro as there are no servic...

Page 5: ...dings on the one screen A graphic interface indentifies what mode you re in Button Clear used to clear Min Max in Multi meter modes Button Pair used to connect to the APP Button Up Down Left Right Used to navigate the menus Button Center MODE Select Used to select a test mode when navigating menus Button Flip Used to turn the screen con tent upside down Button Mute Used to turn the Speaker Tone On...

Page 6: ...WWW POWERPROBETEK COM 6 APPEARANCE AND CONTROLS 13 14 15 16 17 Rear Cover SERIAL NUMBER CIRCUIT BREAKER RE PLACEABLE PART PPTK0030 USB CONNECTOR 5 X 20mm 20A FAST BLOW FUSE PART PPTK0042 ...

Page 7: ...arning Mode is selected it must be scrolled through from start to finish before it will exit EZ Learning Mode You can also exit EZ Learning by disconnecting pow er from the probe and the probe will enter normal test mode when re connected NOTE If you see a flashing screen in the menu it means go to that selection and press enter This mode is to be used for familiarization and guidance only and is ...

Page 8: ...ondition COMPONENT CHECK Suggests best practices WIRE TEST Gives you feedback on the health of the wiring system It should be noted that the tests are a guide to best practices for general Automotive Electrical diagnosis but do not consitute a complete diagnosis and do not guarantee issues are good or bad Knowledge of general diagnosis is required WIRE TEST EACH WIRE FOR PATH BACK TO BATTERY BATT ...

Page 9: ...also serves as the negative lead for resistance testing To test the auxiliary ground lead contact the probe tip and the auxiliary ground lead together The Green LED should illuminate This shows that the auxiliary ground lead is working properly If the green LED does not illu minate check the replaceable 20 amp fuse in the auxiliary ground lead The fuse is for protection in the event the ground lea...

Page 10: ...ute Flip and Pair all have a readily accessible button to keep you from scrolling to find them Another feature is all menu options for any given mode are present on the screen at all times If you are on the Main Menu you will find all the options on one screen The Up Down Left and Right buttons do just that When in Multi Meter Mode or Guided Diagnostics all possible selections are present without ...

Page 11: ...e Ohm Mode is FEED TEST For displaying voltage drops caused by wiring issues on feed and ground circuits 3 AC RMS For AC voltage measurements Displays an RMS averaged AC volt age Max 200 VAC 4 P P For AC voltage measurements Displays Peak to Peak AC voltage Max 200 VAC 5 Hz FRQ CTR For measuring signal Frequency Also displays and Pulse Width 6 FUEL INJ Test Fuel Injectors and Injector circuits out...

Page 12: ... high tone When testing on ground circuits as long as there is less than 10 Ohms total circuit resistance from tip to battery ground voltage and is 5V or less the Green LED will illuminate and the speaker will emit a low tone This greatly simplifies testing as the Maestro Red Green LEDs and speaker tones provide a quick indication if there are excessive voltage drops or circuit resistance If the L...

Page 13: ...rt with a volt ohmmeter may tell you if the part is out of spec but you never really know if the part is good until it is operating under power Pressing the rocker switch forward supplies battery power to the probe tip Pressing the rocker switch rearward supplies battery ground to the probe tip The power output is circuit breaker protected If the compo nent being tested draws too much current or t...

Page 14: ...h the Aux Ground lead whether there is voltage feeds on the circuit or not In this mode the Maestro display will show The circuit resistance will be calcuated even with voltage applied to the circuit To accu rately test the power and ground feed resistance the component must be removed from the circuit first Simply unplug any component relay or module on the circuit contact the probe tip to the ci...

Page 15: ...ection of the circuit being tested PFT displays both Battery and Tip voltage simultaneously for easy voltage drop testing While testing use the Aux Ground and tip to by pass components Place meter in line in place of component and operate switches or relays to close circuit In this mode the Maestro display will show Ohm symbol displays and flashes if 5V drop is exceeded showing that excessive resi...

Page 16: ...mponents not connected to battery power or ground Simply connect the item being tested between the probe tip and the auxiliary ground lead and read the resistance read ing in Ohms While it is possible to ohm check some components it should be noted that Ohmmeter and PFT are primarily for use on wiring only and should never be connected to a solid state component such as a module In Feed Test you w...

Page 17: ...op and bottom left of the display Powering up and activating circuits with the rocker switch can not be performed in this mode Pressing the CLEAR button will reset Min Max readings AC RMS Voltage is used in the same manner as a standard DVOM would be used to measure the averaged AC voltage in any circuit that produces AC voltage This can be used for but not limited to tests such as checking altern...

Page 18: ...display The voltage displayed is the total voltage potential between the lowest and highest voltage sensed on the AC signal being measured The total Peak to Peak voltage will be shown in the main display area The Min voltage will display lowest absolute voltage on the bottom left of the display and the Max voltage will display the highest absolute volt age on the top left of the display Powering u...

Page 19: ... probe tip to the circuit and it will display the frequency in Hertz cycles per second and Duty Cycle on the top and also displaying the Pulse Width and Pulse Width in milliseconds on the bottom The Maestro can measure frequencies from 1Hz to 9999Hz FRQ CTR can be used for tests where fre quency or pulse width are needed such as MAF sensors wheel sensors etc ...

Page 20: ...take you into the meter indicated but will enter as stan dard mode Trace Mode in VDC X VDC MAX MIN Hz FRQ P P VAC OHM VDC VAC VDCOHM Hz FRQ P P TIP 0 00 MAX reading will collect and hold the highest measured reading until clear is pressed MIN reading will collect and hold the lowest measured reading until clear is pressed Average voltage on the tip Ground Reference line Active Trace Area ATA Area ...

Page 21: ...is reset by pressing the clear button If multiple glitches are occuring it will always zoom out with the highest peak showing at the top of the ATA and any other peaks showing within the field respective to their voltage TRACE MODE CONT X VDC 12 00 0 00 Hz FRQ P P VAC OHM VDC VAC VDCOHM Hz FRQ P P TIP 0 00 MAX reading will collect and hold the highest measured reading until clear is pressed MIN re...

Page 22: ...ecome the value noted in the boxes The ATA will zoom in and out depending on amplitude of the signal so the wave form will always be bounded by the dotted lines The Peak to Peak value will display in the center box instead of RMS AC Trace Mode in INJ In INJ Mode you will see the injector wave form the MAX peak voltage and the relationship to Ground The MAX peak in the top box will refresh with eve...

Page 23: ...en the ECM PCM switch es to ground or ECM Ground voltage The windings inside of a fuel injector produce a magnetic field when the injector is energized Each time an injector is turned off this magnetic field collapses back into the injector windings and induces a hi voltage spike The voltage spike is the Inductive Kick Voltage The time between when the injector is turned on to when the injector is...

Page 24: ... volts You should see a similar voltage number from each of the injectors on the engine NOTE The height of the inductive kick is sometimes cut off by an internal ECM diode to about 35 45 volts This test does not apply to hi pressure injectors used on diesel engines and gasoline direct injection engines ECM Ground Voltage The engine computer activates each fuel injector by completing the ground cir...

Page 25: ...data occuring on the tip This new App will be updated with new information tool applets additional features and will adapt to future Power Probe TEK tools that will allow you to build transferable files on vehicles to be accessed at a later time You will be able to search cut and splice traces and log data to identify occuranc es that you might have missed to study and share Mirror Function The ap...

Page 26: ...ssed As long as it is pressed the data will continue to collect You can view it back in log or trace form or splice and save your data as required When using guided diagnostics you can collect and save results as well as take images of issues that you want to capture and tie to a specific vehicle On the tool you will have inofrmation that helps you decide if something is normal or not The app will...

Page 27: ...e Pair button on the app it will prompt you to begin the pairing process There is a button on the tool labeled Pair When prompted by the app push the button and your tool will pair with the app To use the tool within the app simply select a mode on the Maestro and it will populate on the screen Changing modes on the tool will be tracked by the app and change with it When finished be sure to save y...

Page 28: ...Rocker Switches Part PPTK0021 and Circuit Breakers Part PPTK0030 can be purchased from your tool dealer or from Power Probe direct www powerprobetek com webstore Follow the instructions below to replace a worn Rocker Switch WWW POWERPROBETEK COM 28 ROCKER SWITCH REPLACEMENT Locate the two slots on either side of the Rocker Switch Carefully remove the Rocker Switch with an appropriate pry tool or s...

Page 29: ...5V 100µS Pulse Red LED Response Within 0 5V BATT V in Voltmeter Mode and 10 Ohms in Power Feed Test Mode Green LED Response 10 Ohms in both Power Feed Test Mode and Voltmeter Mode and 5V in Voltmeter Mode Circuit Breaker 8 Amp Thermal Auto Reset Breaker Trip Response 8 Amps No Trip 10 Amps 20 min 15 Amps 6 sec 25 Amps 2 sec Short Circuit 0 3 sec Operating Temperature 20 C 4 F to 50 C 122 F Storage...

Page 30: ...inst defects in parts and workmanship All repair due to misuse will be charged a fee not to exceed the cost of the tool All warranty units must be accompanied by a copy of the original sales receipt In the event of a malfunction or defective unit please contact your Power Probe TEK dealer For the latest production information and updated manuals please go to powerprobetek com WWW POWERPROBETEK COM...

Page 31: ...The Next Generation of Diagnostics Power Probe Tek Power Probe TEK LLC 760 Challenger St Brea CA 92821 toll free 800 655 3585 local 714 990 9443 fax 714 990 9478 ...

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