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Trouble Shooting 

1. Meter will not turn ON. 

  Check the battery contacts for a tight fit and correct polarity. 

  Check for a minimum battery voltage of 8.0 volts. 

2. Ampere reading is erratic or there is no reading at all. 

  Disassemble the meter back cover as per the fuse replacement 

instructions on page 24  and test the fuses for continuity with 

another meter. 

3. Meter reading is erratic. 

  Printed circuit board damaged from handling with hands. 

  Low battery. 

  “Blown” fuse. 

  Open circuit in a test lead (frayed or broken wire). 

4. Meter readings do not change. 

  “Hold” feature is still toggled ON. 

 

 

Warranty

                                           

This PDI product is warrantied to be free from defects in materials and 
workmanship for a period of two (2) years from the verified date of 
purchase. During this warranty period, PDI will either repair or replace 
the defective unit, at PDI’s discretion. A purchase receipt or other 
acceptable form of proof of original purchase date will be required 
before any warranty processes begin. PDI warrants all authorized 
repairs with a six (6) month limited warranty.    View full warranty details 
and register your PDI product at www.PDImeters.com.   
 

NOTE: Online product registration is required for all warranty 
claims.  All warranty claims must have a Return Goods 
Authorization assigned from PDI, in order to begin processing. 
Contact PDI for more details. 

 

 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for DM-930

Page 1: ...1 0 DM 930 AUTOMOTIVE MULTIMETER INSTRUCTION MANUAL Auto Power Off 4 2...

Page 2: ...t tested must be protected by a 20A fuse or circuit breaker Do not use the meter if it has been damaged Do not use any test leads if the insulation is damaged or if metal is exposed Safety Cont d Dang...

Page 3: ...C AC DC20A 20A 20A DC AC 20 Amp measurement for 30 seconds maximum Getting Started This chapter will help you get started It describes the basic functions of the Meter Meter Basics 1 Digital LCD displ...

Page 4: ...DIS Hz ms CYL Button Press to this button to select STROKE 4 2DIS Hz ms CYL range V A Resistance manual Range Manual Ranging The meter turns on in the autoranging mode Press the Range button to go to...

Page 5: ...Pmin or Pmax indicator switches off Note If the Function switch position is changed after a calibration the Peak Hold calibration must be repeated for the new function selected MAX MIN 1 Press the MA...

Page 6: ...cation that has capacitors in the circuit be sure to turn the power OFF on the test circuit and discharge all capacitors Accurate measurement is not possible if external or residual voltage is present...

Page 7: ...re performing any work Select the Capacitance CAP function with the function dial and MODE button Insert Black lead in COM terminal Red lead in V RPM terminal CAUTION When checking in circuit capacita...

Page 8: ...nsure of the current draw IMPORTANT Turn OFF all power to the circuit or disconnect the circuit from the power source Connect The Red probe to the side of the circuit closest to the power source The B...

Page 9: ...in COM terminal Red lead in V RPM terminal Connect the Black test probe to ground Connect the Red test probe to the signal wire circuit The illustration for a mixture control solenoid is shown with th...

Page 10: ...ct black test probe to a good ground at the fuel injector or the negative vehicle battery post Connect red test probe to the fuel injector solenoid driver input on the jumper cable Start the engine A...

Page 11: ...w battery indication The is displayed when the battery voltage drops below the operating level Measurement rate 2 times per second nominal Auto power off Meter automatically shuts down after approx 30...

Page 12: ...Resistance Range Resolution Accuracy 400 0 0 1 1 2 of rdg 4 dgts 4 000k 1 1 0 of rdg 2 dgts 40 00k 10 1 2 of rdg 2 dgts 400 0k 100 4 000M 1k 40 00M 10k 2 0 of rdg 3 dgts Capacitance Range Resoluti on...

Page 13: ...t leads from the meter 2 Open the battery door by loosening the screw using a Phillips head screwdriver 3 Insert the battery into battery holder observing the correct polarity 4 Put the battery door b...

Page 14: ...still toggled ON Warranty This PDI product is warrantied to be free from defects in materials and workmanship for a period of two 2 years from the verified date of purchase During this warranty period...

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