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Industrial True RMS Digital 

Multimeter

Model: 72-3530

Содержание 72-3530

Страница 1: ...1 Industrial True RMS Digital Multimeter Model 72 3530 ...

Страница 2: ...ing AC DC 11 60A 600A ACA DCA External Input Current Calipers Measurement 12 Non contact AC Voltage Sensing 12 Square wave Output 13 Other Functions 14 Technical Specifications 14 Measurement of DC Voltage 14 Measurement of AC Voltage 15 Measurement of DC Current 15 Measurement of AC Current 16 Measurement of Resistance Conductance 16 Measurement of Capacitance 17 Measurement of Frequency Duty Rat...

Страница 3: ...nt damage After each measurement is completed it is necessary to disconnect the probe from the circuit under test Therefore once measurement is complete turn off the power supply and disconnect the probe and circuit under test When measuring voltage higher than DC 30V or AC 30Vrms be careful when using the instrument in order to avoid electric shock Do not use the instrument at high temperatures o...

Страница 4: ...and ampere Ω kΩ MΩ Resistance unit Ohm kilohm and megohm nF µF mF Capacitance unit nanofarad microfarad and millifarad Hz kHz MHz Frequency unit Hz kHz and MHz mS Period unit millisecond Duty ratio or 4 20mA measurement unit AC AC nS Conductivity unit nano siemens NCV Non contact AC voltage sensing C F Celsius or Fahrenheit Undervoltage of battery in the machine Interface output Measuring value fo...

Страница 5: ...e LCD A single press results in one gear of range upwards After reaching the highest gear of the range press to jump to the lowest gear of the range and circulate in sequence Press and hold the button for more than 2 seconds or rotate for switchover and it will exit the mode of manual range STORE button Press the button to save a piece of data and the LCD will flash Press and hold the button to en...

Страница 6: ...The LCD will display Peak Short press it to independently switch between P Max and P Min modes Long press the Peak hold button to exit the function of peak measurement the response time is about 1mS HOLD button of data hold backlight Press the HOLD button and the displayed value will be locked and retained and the display will show Press again and the locking will be alleviated entering the mode o...

Страница 7: ...SELECT to enter or exit 4 20mA MEASURING Before measuring check the built in battery If the low battery symbol is showing on the LCD then change the battery immediately or charge before use Watch out for the symbol beside the probe socket which warns you of not exceeding the indicated figure for voltage or current under test MEASURING AC DC VOLTAGE The AC measuring displayed value is the true virt...

Страница 8: ...the circuit under test and discharge the residual electric charge in the capacitor before measuring in order to guarantee correct findings In low resistance measuring the probe will result in an error of 0 1Ω 0 2Ω In order to acquire an accurate reading it is necessary to short circuit the probe and adopt Relative Measuring mode to ensure measuring precision If probe resistance is higher than 0 5Ω...

Страница 9: ... diode is about 0 3V The auxiliary display shows diod Caution If the diode under test is in open circuit or reverse polarity it will display OL In terms of silicon PN junction 500 800mV shall be generally confirmed as normal value When measuring in circuit mode it is necessary to cut off all the power to the circuit under test and discharge residual electric charge in the capacitor before measurin...

Страница 10: ...Y RATIO In the gear of frequency measurement press the Hz button to select the mode of period for auxiliary display duty ratio measurement Caution Do not input voltage higher than DC 30V or AC 30V in order to prevent personal injury MEASURING TEMPERATURE Press and hold SELECT in mV gear to enter or exit the temperature measurement function Press SELECT under the temperature measurement function to...

Страница 11: ...r supply to the circuit When measuring use the correct input terminal and function gear In case of an inability to estimate current magnitude it is advised to start measuring from high gear range The fuse is set inside 10A and mA µA input jack Ensure you do not parallel connect the probe test pin to any circuit in particular the power supply terminal or it will damage the instrument and personal s...

Страница 12: ...ifferent tempos so as to distinguish the magnitude of sensing voltage The red light will flash on top of the instrument Caution When the range switch is set at the gear of NCV no probe will be required for sensing If the electric field voltage is greater than AC 100V the instrument will let out acousto optic prompts distance 10mm If it is greater than 50mm there will be no sound SQUARE WAVE OUTPUT...

Страница 13: ...ppear automatically Buzzer Press any button switch in the mode of BEEP ON and if the button with the corresponding function works the buzzer will sound In normal operation mode it makes one beep sound if the button operation is valid and two beeps if it is invalid The beep of a button can be enabled or disabled in the Setup menu Low Voltage Detection If the internal VDD is lower than 7 3V the low ...

Страница 14: ...accuracy is also applied after 2 hours MEASUREMENT OF DC VOLTAGE Range Resolution Accuracy a of reading b counts DC Frequency response 45Hz 1kHz 1kHz 20kHz 600 00mV 10µV 0 025 5 AC DC 1 2 40 6 0 40 6 0000V 100µV 60 000V 1mV 600 00V 10mV 0 03 5 Undefined 1000 0V 100mV 0 03 5 Input Impedance Range 1GΩ input impedance for other ranges is 10MΩ AC DC the specifications are defined for signal input 10 o...

Страница 15: ...1µA 0 15 10 1 5 20 2 40 600 00mA 10µA 0 15 10 1 5 20 3 40 6 0000A 100µA 0 5 10 2 0 20 6 40 10 000A 1mA 0 5 2 1 5 10 5 40 4 20mA 0 01 0 5 2 AC DC the specifications are defined for signal input 10 of range MEASUREMENT OF AC CURRENT Range Resolution Accuracy a of reading b counts 45Hz 1kHz 1kHz 20kHz 20kHz 100kHz 600 00µA 0 01µA 0 75 20 1 2 40 6 0 40 6000 0µA 0 1µA 0 75 20 1 2 40 3 0 40 60 000mA 1µA...

Страница 16: ...1mS 0 001µS 0 1 5 Input range a 100kHz 500mVrms a 30Vrms 100kHz 1MHz 600mVrms a 30Vrms 1MHz 1Vrms a 30Vrms Duty ratio is applicable to measuring 100kHz only During AC voltage or AC current measuring when frequency or duty ratio is required to be read online the following requirements must be met Frequency response 100kHz AC voltage input range for 400 00mV or 600mV range x 10 input range for 4 000...

Страница 17: ... damage the instrument In the case of any abnormalities with the instrument refer all servicing to qualified personnel When the battery is low connect the power adaptor for charging DC 10V 500mA Made in China www premierfarnell com V 1 0 INFORMATION ON WASTE DISPOSAL FOR CONSUMERS OF ELECTRICAL ELECTRONIC EQUIPMENT This symbol indicate that separate collection of Waste Electrical and Electronic Eq...

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