Tenma 72-14440 User Manual Download Page 7

www.element14.com
www.farnell.com
www.newark.com
www.cpc.co.uk

TM

TM

Page <7>

V1.0

12/03/19

6-6. Capacitance Measurements

WARNING: To avoid electric shock, discharge the capacitor under test before measuring.
• 

SetthefunctionswitchtotheΩCAP

 position.

• 

InserttheblacktestleadbananaplugintothenegativeCOMjackandtheredtestleadbananaplugintotheVHz%Ω

CAP 

 TEMP positive jack.

•  Use the MODE button to select CAP Measurements.
•  Touch the test probe tips across the part under test.
•  Read the capacitance value in the display.
•  The display will indicate the proper decimal point and value.
Note:  When set this position, Date Hold and black light function cannot used. For very large values of capacitance measurement 

itcantakeseveralminutesbeforethefinalreadingstabilizes.

6-7. Diode Measurement

• 

InserttheblacktestleadbananaplugintothenegativeCOMjackandtheredtestleadbananaplugintotheVHz%Ω

CAP 

 TEMP positive jack

• 

TurnthefunctionswitchtoΩCAP

 position. Use the MODE button to select the diode function if necessary (diode 

symbol will appear on the LCD when in Diode test mode)

•  Touch the test probe tips to the diode or semiconductor junction under test. Note the meter reading
•  Reverse the test lead polarity by reversing the red and black leads. Note this reading
•  The diode or junction can be evaluated as follows:
1. If one reading displays a value (typically 0.400V to 0.900V) and the other reading displays OL, the diode is good.
2. If both readings display OL the device is open.
3. If both readings are very small or ‘0’, the device is shorted.
Note: when set this position , Date Hold and black light function cannot used.

6-8. Frequency Test

• 

InserttheblacktestleadbananaplugintothenegativeCOMjackandtheredtestleadbananaplugintotheVHz%Ω

CAP 

 TEMP positive jack.

•  Set the function switch to the Hz Position.
•  Read the Frequency value on the display.
•  Select HZ or % with the HZ/% button.
•  The display will indicate the proper decimal point and value.

6-9. Temperature Measurements

•  Set the function switch to the TEMP position.
• 

InserttheTemperatureProbeIntothenegativeCOMandtheVHz%ΩCAP

 TEMP positive jacks, observing polarity.

•   Touch the Temperature Probe head to the device under test. Continue to touch the part under test with the probe until the 

reading stabilizes.

•  Select °C or °F with the function switch
•  Read the temperature on the display. The digital reading will indicate the proper decimal point and value.
WARNING: To avoid electric shock, be sure the thermocouple probe has been removed before changing to another measure-

ment function.

6-10. NON-CONTACT VOLTAGE (NCV)

The NCV function works on any rotary switch position.
•  Test the detector on a known live circuit before use.
•  Hold the top of the meter very close to the voltage source as shown.
•  If voltage Is present, the red light will long lighting.
NOTE: Do not touch the top of the meter when using this function.

Summary of Contents for 72-14440

Page 1: ...www element14 com www farnell com www newark com www cpc co uk TM TM Page 1 V1 0 12 03 19 AC Clamp Meter Part Number 72 14440 User Manual...

Page 2: ...in use Remove the battery if meter is to be stored for longer than 60 days 2 3 Warnings Sat function switch to the appropriate position before measuring When measuring voltS do not switch to current r...

Page 3: ...est 250VDC AC Temperature 250VDC AC 3 Description 3 1 Meter Description 1 Current fork 2 NCV indicator light 3 Rotary Function swith 4 Data Hold button Backlight button 5 MODE button 6 HZ button 7 REL...

Page 4: ...5 2d 100mV 600V 2 2d 1V Input Impedance 10M Over rang protection 600V DC or 600V ACrms Frequency Response 50Hz 400Hz Function Range Accuracy of reading digits Resolution AC Voltage 200A 3 5d 100mA Ov...

Page 5: ...e banana Play Over rang protection 250V DC or 250V AC rms Function Range Accuracy of reading digits Resolution Capacitance 4nF 5 20d 0 1nF 40nF 3 0 5d 1nF 400nF 3 0 5d 10nF 4 F 3 0 5d 100nF 40 F 3 0 5...

Page 6: ...est lead into the positive V Hz CAP TEMP terminal Set the Function switch to the AC Voltage Connect the test leads in parallel to the circuit under test Read the voltage measurement on the LCD display...

Page 7: ...e reading displays a value typically 0 400V to 0 900V and the other reading displays OL the diode is good 2 If both readings display OL the device is open 3 If both readings are very small or 0 the de...

Page 8: ...ipe the case with a damp cloth and mild detergent do not use abrasives or solvents If the meter is not to be used for 60 days or more remove the battery and store it separately Battery Replacement 1 R...

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