Tenma 72-9380A Скачать руководство пользователя страница 1 | Manualshive

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Model: 72-9380A

Pocket Size Digital Multimeter

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Содержание 72-9380A

Страница 1: ...1 Model 72 9380A Pocket Size Digital Multimeter ...

Страница 2: ...splayed Take caution when voltages are above 60V DC and 30V AC rms Disconnect circuit power and discharge all high voltage capacitors before testing resistance diode and current Do not use the meter with the back cover removed Do not adjust the range selector during measurement Replace the batteries as soon as the low battery indicator appears on the display Remove dead batteries from the meter or...

Страница 3: ... off the backlight 10 seconds 20 seconds 30 seconds or OFF If the period is set to OFF the backlight feature is disabled 1 2 4 3 RANGE SELECTOR FUNCTIONS Position Function Blue Key function OFF Turn the meter off None V DC voltage measurement None V AC voltage measurement None Hz mV DC millivolt measurement Frequency measurement Frequency signal duty cycle Resistance measurement Diode test Continu...

Страница 4: ... the button for more than 1 second Store feature Store the current measurement value Press EXIT to exit Press the button once Recall feature Recall the stored value Press EXIT to exit the Recall feature Press and hold the button for more than 1 second Setup feature In Setup press to select OFF at the selection of HIGH and LOW Press the button once after entering Setup mode Hold feature Press HOLD ...

Страница 5: ... back to the previous stored reading In Store each press to decrease a second on the storing interval Press EXIT to exit Press the button once after entering SEND mode Press to enter relative mode the primary display shows The left secondary display shows the present measurement value The right secondary display shows the stored value The primary display shows the present measurement value minus t...

Страница 6: ...ted ACmA value The tested frequency value 40 00Hz 100 00kHz Full range 400 4000 DCA The tested DC current value No display Full range 10 ACA The tested AC current value The tested frequency value 40 00Hz 100 00kHz Full range 10 STO The current measurement reading The value of the corresponding index number Index number increase one Index number no 0001 no 0100 RCL The recalled value The total numb...

Страница 7: ...ondary display The primary display shows the minimum value Each subsequent press of MAX MIN steps through the above three modes To exit MAX MIN mode press EXIT Note MAX MIN mode can only be used under MANUAL ranging mode OPERATION Measuring Voltages To measure voltage do the following 1 Insert the red test lead into the V terminal and the black test lead into the COM terminal 2 Set the range selec...

Страница 8: ...tion is selected you can press the Yellow Button to view the AC DC True RMS value in the primary display Note The Blue Button is to choose AC or DC current If the value to be measured is unknown use the maximum measurement position and reduce the range step by step until a satisfactory reading is obtained When the measured current is below 5A continuous measurement is allowed When the measured cur...

Страница 9: ... When continuity measurement has been completed disconnect the test leads from the circuit under test and remove test leads from the input terminals of the meter Testing Diodes Turn off power to the circuit Discharge all high voltage capacitors Use the diode test to check diodes transistors and other semiconductor devices The diode test sends a current through the semicondutor junction then measur...

Страница 10: ...press REL with the test leads open to subtract the residual capacitance of the meter and leads It is recommended that the short test clip leads be used for capacitance measurement The LCD displays OL indicating the tested capacitor is shorted or it exceeds the maximum range Capacitors larger than 400µF take longer time The analogue bar graph shows the time left before finishing the measurement Whe...

Страница 11: ...ned especially in testing low temperatures The included point contact temperature probe can only be used with temperature up to 230o C or 440o F When temperature measurement has been completed disconnect the temperature probe from the input terminals of the meter 4 20mA loop current as readout This mode shows the mA measured value or output level on a 4 20mA scale Connect the Meter as follows Set ...

Страница 12: ...eature is disabled while the meter is in this mode Recalling Stored Readings Use the following procedure to recall the stored reading Press RECALL to recall the stored value and RCL displays to confirm the operation The left secondary display shows the index number no xxxx The primary display shows the corresponding recalled data The right secondary display shows the total number of the stored dat...

Страница 13: ...Press to select the digit you want to edit OFF Over the upper limits beeps intermitently LOW Max 40 000 model 72 7732A Max 20 000 model 72 7730A Press to select off Press to select the digit you want to edit OFF Over the upper limits beeps intermitently 10 20 30 OFF 10 mins 10 mins power off 20 mins power off 30 mins power off Power off is disabled 1 OFF 1 Beeps continuously and icon lights on No ...

Страница 14: ...sic accuracy DC Voltage 0 025 AC Voltage 0 5 DC Current 0 to 10A 5 10A for 10 seconds interval 15 minutes AC Current True RMS 0 to 10A 5 10A for 10 seconds interval 15 minutes Resistance 0 to 40MΩ Capacitance 0 to 40mF Frequency 0 400MHz Temperature 40o C 1000o C 40o F 1832o F STORE Readings Up to 100 readings may be saved by the user in a memory These readings may be viewed by using Recall featur...

Страница 15: ...000V where it is 1 5 A residual reading of 80 digits with test leads shorted will not affect stated accuracy When frequency is lower than 100kHz the accuracy guarantee range 10 100 When making AC DC measurement the accuracy need to add 1 35 digits of reading based on the above table DC Current Range Resolution Accuracy Overload Protection 400μA 0 01μA 0 1 15 0 5A 1000V fast type fuse Ø10 3 x 38mm ...

Страница 16: ... 1 2V The buzzer does not sound when the test resistance is 60Ω The beeper sounds continuously for open circuits and if test resistance is 40Ω Diode Test Range Resolution Overload Protection 0 0001V 1000V Open circuit voltage approximate 2 8V A good silicone junction drops between 0 5V and 0 8V True rms are valid from 10 of range to 100 of range AC crest factor can be up to 3 0 A residual reading ...

Страница 17: ...pecified Frequency Range Resolution Accuracy Overload Protection 40Hz 0 001Hz 0 01 8 1000V 400Hz 0 01Hz 4kHz 0 0001kHz 40kHz 0 001kHz 400kHz 0 01kHz 4mHz 0 0001mHz 40mHz 0 001mHz 400mHz 0 01mHz Not specified Input amplitude a as follows DC 0 When 10Hz 40MHz 200mV a 30Vrms When 40MHz Not specified Temperature Celsius Range Resolution Accuracy Overload Protection 40o C 40o C 0 1o C 3 30 1000V 40o C ...

Страница 18: ...00V fast type fuse Ø10 3 38mm When the readings obtained is 4mA the primary display shows LO 4mA the primary display shows 0 20mA the primary display shows 100 20mA the primary display shows HI Power Measurement Range Resolution Accuracy Current Overload Protection Voltage Overload Protection 2500W 0 1W 2 10 10A 1000V fast type fuse Ø6 3 x 32mm 1000V Power factor input range 0 00 1 00 Voltage inpu...

Страница 19: ...mage to the Meter use specified fuses ONLY in accordance with the following procedure Turn the rotary switch to OFF and remove all connections from the terminals Remove the 5 screws from the case bottom Remove the fuse by gently prying one end loose then lift out the fuse from its holder Install ONLY replacement fuses with the identical type and specification as follows and make sure the fuse is f...

Страница 20: ...s is required Do not dispose of these items with general household waste Separate for the treatment recovery and recycling of the materials used Waste batteries can be returned to any waste battery recycling point which are provided by most battery retailers Contact your local authority for details of the battery and WEEE recycling schemes available in your area Made in China PR2 9PP Man Rev 1 0 ...

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