Tenma 72-7800 User Manual Download Page 1 | Manualshive

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TM

TM

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V1.0

25/03/22

Newark.com/exclusive-brands
Farnell.com/exclusive-brands
Element14.com/exclusive-brands

Part Number: 72-7800

Digital Clamp Meter

User Manual

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Summary of Contents for 72-7800

Page 1: ...TM TM Page 1 V1 0 25 03 22 Newark com exclusive brands Farnell com exclusive brands Element14 com exclusive brands Part Number 72 7800 Digital Clamp Meter User Manual ...

Page 2: ...measurement 6 2 AC voltage measurement 6 3 Resistance measurement 7 4 Circuit on off measurement 8 5 Diode measurement 8 6 Capacitance measurement 9 7 Frequency duty ratio measurement 10 8 Temperature measurement 10 9 DC current measurement 11 10 AC current measurement 11 11 Current signal output function 12 12 Power gear OFF 12 13 Automatic shutdown function 12 9 Technical Specifications 13 1 Gen...

Page 3: ...d shall be weakened or lost 1 Check the clamp ammeter and test leads before use guard against and damage or abnormal phenomenon if abnormal condition is found bare test leads damaged classic no display or random display in LCD please do not use it It is forbidden to use the clamp ammeter without rear cap or rear cap not in place or otherwise there is risk of electric shock 2 Damaged test lead shou...

Page 4: ...gger clamp head will partially closed 3 Functional key Select basic functions 4 Analog current output 5 Measure input terminal Measure the signal input 6 Toggle Used to select the measurement of input terminal or analog current output terminal 7 LCD display area Displays the measurement data and functional symbols 8 Dial switch Select the measurement function position 9 Clamp head A device used to...

Page 5: ...clear stored data record and then CLR symbol disappears MEM stored number becomes 0 2 RANGE While in data recording mode enter the manual measurement mode by a short press of the RANGEbutton and change the manual range After a long press of the RANGE button the unit will switch to manual ranging While under the data recording recall mode you can view the stored data upward by pressing this key 3 M...

Page 6: ... voltage measurement position and connect test leads in parallel with the power or load to be measured 3 Directly read the measured voltage value from display 4 Press SELECT at the DC voltage measurement position to select AC DC measurement Note Do not input voltage higher than 1000V It may be feasible to measure higher voltage but damage will be caused to the meter Beware of potential electric sh...

Page 7: ... resistance measurement Ω and connect test leads in parallel with the two terminals of measured resistance 3 Directly read the measured resistance value from display Note If the resistance open circuit or resistance being measured exceeds the maximum range of the meter display will show OL Before measuring line resistance the circuits should be powered off and all capacitors properly discharged to...

Page 8: ...ircuit from display Note When checking a circuit prior to measurement be certain to power off all power sources and discharge any inline capacitors With respect to the circuit on off measurement open circuit voltage is approximately 3 5V and range should be 600Ω measurement Position Do not input voltage higher than DC 42 V or AC 30V which may cause personal injury After completing all measurement ...

Page 9: ...on on the function switch and connect the test lead in parallel with the capacitor or circuit to be measured 3 Directly read out the capacitance value of measured circuit from display It is recommended to carry out capacitance measurement with the short test leads thus reducing the impact caused by distributed capacitance Note If the measured capacitance is short circuited or capacitance exceeds t...

Page 10: ... may cause personal injury After completing all measurement operations disconnect the test leads from the measured circuit 8 Temperature measurement 1 Select the C F position on the function switch The display will initially read OL Short the standard test leads to display room temperature 2 Insert temperature K type socket in the corresponding hole as per the diagram 3 Put temperature probe direc...

Page 11: ...pen the clamp head and place around single conductor to be measured Slowly release the clamp trigger to make certain that the head is completely closed Keep the conductor centred in the clamp head Please note that only one conductor can be measured at a time multiple conductors will product an incorrect measurement 2 Main display will show the true RMS while the right secondary display shows frequ...

Page 12: ...amage the meter 12 Power gear OFF Instrument will be powered off 13 Automatic shutdown function If buttons are not pressed or if function rotary knob is not used within given time 15 minute default the display will turn off and the instrument enters a low power mode The meter can be awaken by pressing a button or turning the knob Note Current measurement must be taken between 0 and 40 C If a posit...

Page 13: ...omagnetic field impact the application of device near electromagnetic field may result in unstable display or inaccurate reading Power requirement 6LF22 9V alkaline battery Dimensions 11 7 4 2 1 9 298mm 107mm 47mm Weight 26oz 726g inclusive of battery 2 Environment For Most Accurate Measurements Indoor Maximum elevation 6560 2000m Safety Standard CAT IV 600 CAT III 1000 Pollution grade 2 Operating...

Page 14: ...ing count 600A 0 1A 1 5 5 2500A 1A 2 5 5 5 AC current Range Resolution Accuracy reading count 600A 0 1A 1 5 5 2500A 1A 2 5 5 Display true RMS applicable to 10 100 of the range Frequency response 50Hz 60Hz The clamp will vibrate slighly when measuring 2000 AC current with no impact on measuring accuracy 6 Current AC DC Range Resolution Accuracy reading count 600A 0 1A 3 0 20 2500A 1A 5 0 20 Display...

Page 15: ...N junction is about 0 5 0 8V Overload protection 1000V 10 Capacitance Range Resolution Accuracy reading count 60nF 0 01nF Under REL state 3 5 600nF 0 1nF 3 5 6µF 0 001µF 60µF 0 01µF 600µF 0 1µF 4 5 6000µF 1µF 5 5 60mF 0 01mF Reference value Overload protection 1000V 11 Frequency Hz Range Resolution Accuracy reading count 60Hz 0 001Hz 0 1 3 600Hz 0 01Hz 6kHz 0 0001kHz 60kHz 0 001kHz 600kHz 0 01kHz ...

Page 16: ...ing attention to the indicated polarity c Only use the same type of 9V Alkaline battery Do no try to fit with another battery type or mains power d After installing battery replace and secure battery cover and screw Important Notice This data sheet and its contents the Information belong to the members of the AVNET group of companies the Group or are licensed to it No licence is granted for the us...

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