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TM

TM

Page <3>

V1.0

25/03/22

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

1. Overview

72-7800 is a portable true RMS 5-5/6 bit (6000 Counts), auto range clamp ammeter with analog simulation bar graph. The clamp 

ammeter featuring full-function on screen display, full-range overload protection and unique design makes this a highly featured 

clamp ammeter with incredible performance. The clamp ammeter is applicable to following measurements: AC/DC voltage, AC/

DC current, surge current, resistance, frequency, maximum/minimum value measurement, relative value measurement, data 

recording and read-back, under-voltage display and automatic shutdown function. 
The instruction manual includes relevant safety information and warning indication, please read them carefully and strictly 

observes all warnings and notes.

2. Open Case and Check

Unpack and remove the instrument. Check the instrument for any damage and verify that the following items are included in 

the box. If anything is damaged or missing, please contact your supplier.

• 

An operating instruction manual

• 

A test lead

• 

A Temperature sensor

• 

A carry case

•  A safety certificate

3. Safety Codes

The clamp ammeter is designed and produced strictly in accordance with IEC61010-1 safety standards. It meets the double 

insulation over-voltage standardd CAT II 1000V. CAT III 600V and safety standards of pollution degree II. If failure to use the 

meter under the relevant operation instruction, the protection provided 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 should be replaced with a new one.
3.  Do not touch the bare wire and connector, used input terminal or the circuit being measured when clamp ammeter is in 

operation.

4.  Be careful in measuring voltage higher than DC 42V or AC 30V and keep fingers behind the test lead finger guard to prevent 

against electrical shock.

5. Set the function range switch at the maximum range position if the scope of measured value could not be defined.
6. Do not use voltage or current values greater than those defined by the clamp meter for safe use.

7.  Set function switches to their needed positions before measurement. Before changing functions, remove the test leads from 

their measured circuits to prevent damage to the meter.

8.  Refrain  from  storing  or  using  the  clamp  ammeter  in  explosive  and  flammable  environment  with  high  temperature,  high 

humidity and strong electromagnetic field.

9. Refrain from altering the internal wiring in the clamp ammeter to guard against damage to meter and danger.
10. When LCD display shows the icon “ ”, it is required to replace the battery in time to ensure the measurement accuracy.

11. Power off immediately after measurement. Take out battery when the clamp ammeter is not be in use for a long time.

4. Electrical Symbols

Dual Insulation
Grounding
Warning prompt
AC (Alternating Current)

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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