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Summary of Contents for PDi DM-930
- Page 1 DM-930 AUTOMOTIVE MULTIMETER INSTRUCTION MANUAL Auto Power Off ¦ ¸...
- Page 2 Safety … Safety Cont’d DANGER Engines produce carbon monoxide which is odorless, can cause slower reaction time and Danger can lead to serious injury. When the engine is Avoid electrical shock: do not touch the test leads, operating, always keep service areas WELL VENTILATED or attach the vehicle exhaust tips or the circuit being tested.
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Page 3: Meter Basics
Getting Started … Safety Cont’d This chapter will help you get started. It describes the basic functions of the Meter. IMPORTANT To maintain accuracy of the meter, replace the exhausted battery Meter Basics immediately when the battery symbol “ “... -
Page 4: Function Buttons
Function Buttons LCD DISPLAY SYMBOLS Mode Button Press the mode pushbutton to select the following functions; Auto Power Off DC/AC Voltage, DC/AC Current Resistance, Diode, Continuity & Capacitance Manual Range & Stroke 4/2(DIS), -8.8.8.8 LCD display reading Hz, %, ms +, CYL Button Continuity Press to this button to select;... - Page 5 MAX/MIN Peak Hold 1. Press the MAX/MIN key to activate the MAX/MIN recording The Peak Hold function captures mode. The display icon "MAX or MIN" will appear. The meter the peak AC or DC voltage or current. will go to manual ranging & display and hold the maximum or The meter can capture negative minimum reading and will update only when a new “MAX or Auto Power Off...
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Page 6: Meter Functions - Voltage (V)
Red + Black- source). Please Note: the DM-930 defaults to resistance. WARNING When measuring voltage, be sure the Red test lead is Insert: in the terminal marked “V”. Black lead in COM terminal. If the test lead is in an Amp (A) or Milliampere (mA) Ω... - Page 7 Meter Functions –Diode Check ( Meter Functions – Capacitance ( CAP ) IMPORTANT: Turn the power OFF to IMPORTANT: Turn the power OFF to the test the test circuit circuit before performing any work. Select the Capacitance “ CAP “ Select the Diode Check “...
- Page 8 Red lead in the 20A or mA terminal Meter Functions – Audible Continuity ( (select 20A if you are unsure of the current draw). IMPORTANT: Turn the power OFF IMPORTANT: Turn OFF all power to on the test circuit Auto Power Off the circuit or disconnect the circuit from the power source.
- Page 9 Meter Functions – Frequency(Hz) Meter Functions - Duty Cycle (%) Select the “Hz” Frequency Select Duty” Cycle “% function with the function dial. function with the function dial. Auto Power Off Insert: Auto Power Off Black lead in COM terminal. Insert: ¦...
- Page 10 Connect black test probe to a good valve open. ground at the fuel injector or the When the pulse ends, the injector nozzle is closed. negative (-) vehicle battery post. This open to close time is the Pulse Width and is measured in Connect red test probe to the fuel injector solenoid driver input on the milliseconds (ms).
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Page 11: General Specifications
Note: Dimensions: 167 (H) x 79 (W) x50 (D) mm Position the inductive pick-up as far away from the distributor and Weight: Approx.: 300g. the exhaust manifold as possible Accuracy and Resolution Specifications Position the inductive pick-up within six inches of the spark plug or move it to another plug wire if no reading or an erratic reading is *Accuracy is given as±([X% of reading]±[number of least significant received. - Page 12 AC Voltage Capacitance Range Resolution Accuracy Range Resoluti Accuracy 400.0mV 0.1mV +1.5% of rdg + 5 dgts 4.000nF +5.0% of rdg+60 dgts 4.000V +1.0% of rdg + 3 dgts 40.00nF 10pF +5.0% of rdg + 7 dgts 40.00V 10mV +1.5% of rdg + 3 dgts 400.0nF 0.1nF 400.0V...
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Page 13: Maintenance
3. Insert the battery into battery holder, observing the correct polarity. Diode Test 4. Put the battery door back in place. Secure with the two screws. Test current Resolution Accuracy WARNING: To avoid electric shock, do not operate the meter until 1.0mA typical 1 mV +5% of rdg +15 dgts... -
Page 14: Troubleshooting
“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.
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