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5-2 Current Measurement 

1) Connect red test lead to "10A" input terminal and black

test lead to " COM " input terminal.

2) A. If current to be measured is AC, select " AC/DC

Switch " to the " AC " position.

B. If current to be measured is DC, select " AC/DC

Switch " to the " DC " position.

3) Select the " Function Switch " to the " 10 A  " position.
4) Open the circuit in which current is to be measured.  Now

securely connect test leads in series with the load in which
the current is be measured.

5-3 Resistance Measurement 

1) Connect red test lead to " OHM " input terminal and black

test lead to " COM " input terminal.

2) Determine the highest anticipated resistance ( 200OHM,

2K, 20K, 200K , 2000K or 20 M ( K = 1000)) on the 
" function switch " and select to the corresponding position.

3) If the resistance being measured is connected to a circuit,

turn off power to circuit being tested and discharge all
capacitors.

4) Connect test lead probes into circuit ( resistance ) under test.
5) Read resistance value on digital display.
6) APPLICATION 1 : " 2K, 200K RANGE " to measure the

coil's resistance. 

7) APPLICATION 2 : "   2M RANGE" to measure whether

the " CAPACITOR " is good or not.

Summary of Contents for DM-9030

Page 1: ......

Page 2: ...minal 1 3 7 Battery compartment 1 4 PRECAUTIONS PREPARATIONS FOR MEASUREMENT 1 5 MEASURING PROCEDURE 5 1 Voltage Measurement 1 5 2 Current Measurement 1 5 3 Resistance Measurement 1 5 4 Temperature Me...

Page 3: ...tion Do not apply the overload voltage current to the input terminal Remove test leads before open the battery cover Environment Conditions Installation categories II Pollution Degree 2 Altitude up to...

Page 4: ...e range of automotive electronics tests Duty cycle with Dwell conversion chart for electronic fuel injection and feedback carburetors Diode test quickly measures the forward bias voltage drop of alter...

Page 5: ...olarity Zero Adjustment Automatic Over input Display shows 1 or 1 Sampling time Approx 0 4 second Operating Temp 0 to 50 32 to 122 Operating Less than 80 RH Humidity Power Approx DC 3 6 mA Consumption...

Page 6: ......

Page 7: ...emove either of the test leads from the circuit under test when changing the measurement range 6 Operate the instrument only in the ambient temperature range of 32 122 0 50 and less than 80 relative h...

Page 8: ...LOW voltage value should under 1 V If not bump engine until it reach d If the above c point voltage display showed lower than 0 2V then the contact resistance of Points is normal or it need to be cha...

Page 9: ...ground HIGH TENSION WIRE by laying or taping lug to bare metal surface b Connect BLACK TEST PROBE to NEG battery terminal Connect RED TEST PROBE to POS battery terminal c After cranking engine for ab...

Page 10: ...measured 5 3 Resistance Measurement 1 Connect red test lead to OHM input terminal and black test lead to COM input terminal 2 Determine the highest anticipated resistance 200OHM 2K 20K 200K 2000K or...

Page 11: ...n device if greatest accuracy is to be achieved This will only take a couple of minutes and only applies if the plug of probe has previously been exposed to an ambient temperature different ot that me...

Page 12: ...o 3 SPARK PLUG ref Fig 2 then the display will show RPM reading x 10 RPM NOTE a RPM TACH used the Secondary Tech measuring method no matter what cylinder is b If the display reading is unstable it may...

Page 13: ...minal 3 Connect red test probe into BREAKER POINTS or terminal of IGNITION COIL Connect black test probe into GROUND or terminal of battery The wire connection diagram please ref fig 3 4 Crank engine...

Page 14: ...nto circuit under test If the resistance value to f the circuit is less than approx 100 OHM then there will be Beeper sound output from the meter A When connected with polarity as shown in Fig 4 a for...

Page 15: ...ENT PROBE This range is exactly same as DC 2V range but without decimal point It can match the 400 A or 2 000 A range of optional DC AC CURRENT PROBE such as CA 501 CA 202 then can get current values...

Page 16: ...thermocouple suitable for many general purpose application Temperature Probe Measure Range 50 to 900 Type K TP 02A 50 to 1700 Dimension 10cm tube 3 2mm dia Temperature Probe General purpose applicati...

Page 17: ...The address of after service center 9610 DM 9030 IEC1010...

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