GW Instek GDM-356 Скачать руководство пользователя | Manualshive

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The multimeter Structure

(see figure 1)

9

( figure 1)

GDM-356

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Содержание GDM-356

Страница 1: ...ional Buttons Display Symbols Measurement Operation A DC Voltage Measurement B AC Voltage Measurement C DC Current Measurement D AC Current Measurement E Measuring Resistance F Frequency Measurement G...

Страница 2: ...29 29 29 I Diodes and Continuity Test 30 30 C Replacing the Fuses 31 31 31 32 GDM 356 2 Title E Resistance Test F Frequency G Temperature H Capacitance Maintenance A General Service B Replacing the Ba...

Страница 3: ...Meter uses large scale of integrated circuit with double integrated A D converter as its core and has full range overload protection The Meter not only can measure AC DC Voltage AC DC Current Resista...

Страница 4: ...ng items carefully to see any missing or damaged part In the event you find any missing or damage please contact your dealer immediately GDM 356 4 Item 1 2 3 4 Description English Operating Manual Tes...

Страница 5: ...stallation with smaller transient overvoltages than CAT IV Use the Meter only as specified in this operating manual otherwise the protection provided by the Meter may be impaired In this manual a Warn...

Страница 6: ...using the Meter l Do not apply more than the rated voltage as marked on the Meter between the terminals or between any terminal and grounding l The rotary switch should be placed in the right positio...

Страница 7: ...ng the Meter case l When servicing the Meter use only the same model number or identical electrical specifications replacement parts l The internal circuit of the Meter shall not be altered at will to...

Страница 8: ...Alternating Current DC Direct Current AC or DC Grounding Double Insulated Deficiency of Built In Battery Continuity Test Diode Capacitance Test Fuse Warning Refer to the Operating Manual Conforms to S...

Страница 9: ...The multimeter Structure see figure 1 9 figure 1 GDM 356...

Страница 10: ...10 Functional Buttons Below table indicated for information about the functional button operations Button Operation Performed HOLD Blue Button POWER Yellow Button GDM 356...

Страница 11: ...tor appears 3 Indicator for AC voltage or current The displayed value is the mean value 4 Indicates negative reading 5 Test of diode 6 Data hold is active 7 The continuity buzzer is on 8 Centigrade te...

Страница 12: ...pacitance F Microfarad 1 x 10 6 or 0 000001 farads nF Nanofarad 1x10 9 or0 000000001 farads kHz 13 The unit of frequency in cycles second Kilohertz 1 x 10 3 or 1 000 hertz Ohm The unit of resistance k...

Страница 13: ...harms to you or damages to the Meter from electric shock please do not attempt to measure voltages higher than 1000V or 750V rms although readings may be obtained The DC Voltage ranges are 200mV 2V 20...

Страница 14: ...Meter has an input impedance of approx 10M This loading effect can cause measurement errors in high impedance circuits If the circuit impedance is less than or equal to 10k the error is negligible 0...

Страница 15: ...sponse Note l If the value of voltage to be measured is unknown use the maximum measurement position 750V and reduce the range step by step until a satisfactory reading is obtained l The LCD displays...

Страница 16: ...urement the Meter may be damaged or the operator himself may be hurt Use proper terminals function and range for the measurement When the testing leads are connected to the current terminals do not pa...

Страница 17: ...more negative side of the break 5 Turn on power to the circuit The measured value shows on the display Measurement Operation 5 Note l If the value of current to be measured is unknown use the maximum...

Страница 18: ...aximum measurement position 20A and 20A terminal and reduce the range step by step until a satisfactory reading is obtained l When current measurement has been completed disconnect the connection betw...

Страница 19: ...ead into the COM terminal 2 Set the rotary switch to an appropriate measurement position in range 3 Connect the test leads across with the object being measured The measured value shows on the display...

Страница 20: ...ou or damages to the Meter do not attempt to measure voltages higher than 60V in DC or 30V rms in AC although readings may be obtained When the frequency signal to be tested is higher than 30V rms the...

Страница 21: ...temperature measurement range is from 40 o C 1000 o C or 40 o F 1832 o F To measure temperature connect the Meter as follows Note l The Meter automatically displays the temperature value inside the M...

Страница 22: ...H Capacitance Measurement see figure 10 figure 10 Capacitance measurement has 4 measurement positions on the rotary switch 20nF 200nF 2 F and 100 F To measure capacitance connect the Meter as follows...

Страница 23: ...To avoid damage to the Meter or to the equipment under test disconnect circuit power and discharge all high voltage capacitors before measuring diodes and continuity Testing Diodes Use the diode test...

Страница 24: ...testing has been completed disconnect the connection between the testing leads and the circuit under test Testing for Continuity To test for continuity connect the Meter as below 1 Insert the red test...

Страница 25: ...ilt in sensor Therefore the Display Backlight turns on and off automatically depending on the brightness of the environment In a dim condition the Display Backlight turns on automatically while in a b...

Страница 26: ...l Temperature Operating 0 o C 40 o C 32 o F 104 o F Storage 10 o C 50 o C 14 o F 122 o F l Relative Humidity 75 0 o C 30 o C 50 31 o C 40 o C l Altitude Operating 2000m Storage 10000m l Battery Type 9...

Страница 27: ...mpedance 10M B AC Voltage 2V 20V 200V 750V Remarks l Input impedance 10M l Frequency response 40Hz 400Hz l Display effective value of sine wave mean value response 200mV 2V 20V 200V 1000V 100 V 1mV 10...

Страница 28: ...minutes l Measurement voltage drop Full range at 200mV D AC Current Range Resolution Overload Protection Accuracy 3 5 1 8 3 200mA 20A 100 A 10mA 1 3 0 5A 250V fast type fuse 5x20 mm Un Fused Remarks...

Страница 29: ...ange test lead is in short circuit and it is normal to display 10 digits During measurement subtract the 10 digits from the reading F Frequency Remarks Input Sensitivity 200mV G Temperature Range Reso...

Страница 30: ...nF 0 1 F 5 4 4 3 250V AC Remarks Testing signal approx 400Hz 40mV rms When the tested capacitor is greater than 30 F reading is for reference only I Diodes and Continuity Test 1mV 1 Range Resolution I...

Страница 31: ...Meter do not get water inside the case A General Service l Periodically wipe the case with damp cloth and mild detergent Do not use chemical solvent l To clean the terminals with cotton bar with deter...

Страница 32: ...place the battery with a new 9V battery NEDA 1604 or 6F22 or 006P 6 Rejoin the battery compartment and the case bottom and install the screw and rubber feet C Replacing the Fuses Warning To avoid elec...

Страница 33: ...fuse is fixed firmly in the bracket 0 5A 250V fast type fuse 5x 20mm 2 Rejoin the case bottom and the case top and install the screw and rubber feet Replacement of fuses is seldom required Burning of...

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