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FLIR

 

CM72_CM74

 

USER

 

MANUAL

       

      

        

Document

 

Identifier:

 

CM72_CM74

‐

en

‐

US_AA

 

20

5.8

 

Diode

 

Test

 

Warning:

 

Do

 

not

 

perform

 

diode

 

tests

 

before

 

removing

 

the

 

power

 

to

 

the

 

diode

 

or

 

other

 

devices

 

under

 

test

 

during

 

a

 

measurement.

 

Injury

 

to

 

persons

 

can

 

occur.

 

1.

Set

 

the

 

function

 

switch

 

to

 

the

 

diode

 

position.

  

2.

Insert

 

the

 

black

 

probe

 

lead

 

into

 

the

 

negative

 

COM

 

terminal

 

and

 

the

 

red

 

probe

 

lead

 

into

the

 

positive

 Ω 

terminal.

3.

Use

 

the

 

MODE

 

button

 

to

 

select

 

the

 

diode

 

test

 

function.

 

The

 

diode

 

indicator

 

will

 

be

 

displayed.

 

4.

Touch

 

the

 

tips

 

of

 

the

 

probe

 

across

 

the

 

diode

 

or

 

semiconductor

 

junction

 

under

 

test.

5.

If

 

the

 

reading

 

is

 

between

 

0.40

 

and

 

0.80V

 

in

 

one

 

direction

 

and

 

OL

 

(overload)

 

in

 

the

 

opposite

direction,

 

the

 

component

 

is

 

good.

 

If

 

the

 

measurement

 

is

 

0V

 

in

 

both

 

directions

 

(shorted)

 

or

OL

 

in

 

both

 

directions

 

(open),

 

the

 

component

 

is

 

bad.

Figure

 

5.7

 

Diode

 

Tests

 

Содержание CM72

Страница 1: ...USER MANUAL FLIR CM72 and CM74 CLAMP METERS CM72 600A True RMS AC Clamp Meter CM74 600A True RMS AC DC Clamp Meter...

Страница 2: ...on Switch 9 4 3 Function Buttons 9 4 4 Display Icons and Indicators 10 5 OPERATION 12 5 1 Powering the Meter 12 5 1 1 Auto Power Off 12 5 2 Auto Manual Range Mode 12 5 3 HOLD Mode 12 5 4 Voltage and C...

Страница 3: ...17 5 5 Resistance Measurements 18 5 6 Continuity Test 18 5 7 Capacitance Measurements 19 5 8 Diode Test 20 6 MAINTENANCE 21 6 1 Cleaning and Storage 21 6 2 Battery Replacement 21 7 SPECIFICATIONS 22 7...

Страница 4: ...nced herein are used for identification only and are the property of their respective owners 1 2 Quality Assurance The Quality Management System under which these products are developed and manufactur...

Страница 5: ...isconnect the test leads from the circuit that you did a test on before you change the range If you do not do this damage to the instrument and injury to persons can occur Do not replace the batteries...

Страница 6: ...cause damage to the protection This symbol adjacent to another symbol or terminal indicates that the user must refer to the manual for further information This symbol adjacent to a terminal indicates...

Страница 7: ...acklit display Work light Auto Range True RMS AC 600 A capability and selection CM72 Auto Range True RMS AC DC 600 A capability and selection CM74 Auto Range True RMS AC DC 600 V capability and select...

Страница 8: ...utton only CM72 4 Function switch 5 COM negative Probe Input jack 6 Positive Probe Input jack 7 DCA Zero and Inrush button CM74 only Work light button CM72 8 MIN MAX HOLD button 9 AUTO RANGE Button 10...

Страница 9: ...Buttons Select AC or DC in the Voltage Current modes Select Diode or Capacitance Continuity or Resistance Select Hz in the AC Voltage Current FLEX modes Select Auto or Manual range mode see section 5...

Страница 10: ...to range mode Indicates that the meter is in Hold mode Indicates the battery voltage status Indicates that the auto power off function is enabled Indicates that the measured voltage is greater than 30...

Страница 11: ...rad Unit of measure for Capacitance Hertz Unit of measure for Frequency 103 kilo 10 3 milli 10 6 micro VFD mode icon CM74 only DC Zero mode icon CM74 only Inrush current mode icon CM74 only Flex Clamp...

Страница 12: ...wering off Press any button or turn the function switch to prevent the meter from powering off The auto power off time out is then reset To disable auto power off press the MODE button while turning t...

Страница 13: ...n 5 2 Auto Manual range mode 4 Insert the black probe lead into the negative COM terminal and the red probe lead into the positive V terminal 5 Connect the probe leads in parallel to the part under te...

Страница 14: ...aws refer to Figure 5 2 Figure 5 2 Correct and incorrect setup 1 Ensure that the probe leads are disconnected from the meter 2 Set the function switch to the A position 3 To manually select AC or DC p...

Страница 15: ...s the highest AC current reading in the first 100ms period after the trigger point current detection threshold is reached see Fig 5 3 below The current detection threshold is 0 5A for the 60 00A range...

Страница 16: ...HOLD button to access the MIN MAX mode 2 The first screen will be the MIN screen The down arrow will appear indicating MIN mode and the displayed reading will represent the lowest reading encountered...

Страница 17: ...rent measurements made by the FLEX Clamp Adaptor 1 Turn the function dial to the position 2 Connect the Flex Clamp as shown 3 Set the Range of the Flex Clamp Adaptor to match the range of the CM174 4...

Страница 18: ...s the circuit or component under test 5 Read the resistance value on the display Figure 5 5 Resistance and Continuity Measurements 5 6 Continuity Test Warning Do not perform continuity tests before re...

Страница 19: ...the position 2 Use the MODE button to select capacitance function capacitor symbol must be displayed 3 Insert the black probe lead into the negative COM terminal and the red probe lead into the posit...

Страница 20: ...d into the negative COM terminal and the red probe lead into the positive terminal 3 Use the MODE button to select the diode test function The diode indicator will be displayed 4 Touch the tips of the...

Страница 21: ...ted to a circuit remove the probe leads from the terminals and set the function switch to the OFF position before attempting to replace the batteries 2 Unlock and remove the battery compartment cover...

Страница 22: ...o 104 F 30 to 40 C 75 RH 104 to 122 F 40 to 50 C 45 RH Storage conditions 4 to 140 F 20 to 60 C 0 80 RH batteries not installed Dimensions D W L 1 7 3 5 9 5 in 43 mm 89 mm 241 mm Weight CM72 12 8 oz 3...

Страница 23: ...counts when the AC reading is 10 counts CM72 Overload protection 600 V rms CM74 Overload protection 1000V rms Input impedance 10 M 100 pF Lo Z Input impedance 2 5k AC conversion type AC coupled true...

Страница 24: ...me as AC Voltage DCA affected by the temperature and residual magnetism use DCA Zero function to compensate AC conversion type AC coupled true RMS responding calibrated to the RMS value of a sine wave...

Страница 25: ...and 600 A rms CM74 1000Vrms and 600 A rms Trigger Sensitivity 5Vrms for ACV 10Hz 10kHz 15Vrms for ACV 10kHz 60kHz range 4Arms for ACA 10Hz 10kHz 8Arms for ACA 1kHz 10kHz CM74 only Reading will be 0 0...

Страница 26: ...tection 600 V rms CM74 Overload protection 1000 V rms Maximum test current Approx 0 1 mA Maximum open circuit voltage for Approx 1 8 V Maximum open circuit voltage for diode Approx 1 8 V Continuity th...

Страница 27: ...dgt 45 400Hz 300 0 A 3000 A LCD displays 0 counts when the reading is 10 counts Additional accuracy for the Flex function is listed in the FLIR clamp adaptor User Manuals Models TA72_TA74 Table 7 8 Fl...

Страница 28: ...imited Lifetime Warranty are MR7x CM7x CM8x DMxx VP5x not including accessories which may have their own warranty 3 WARRANTY PERIODS For purposes of The Limited Lifetime Warranty Lifetime is defined a...

Страница 29: ...r all packaging and shipping costs FLIR will pay for returning to Purchaser any Product that FLIR repairs or replaces under warranty FLIR reserves the right to determine in its sole discretion whether...

Страница 30: ...tomer Support Technical Support Website http support flir com Technical Support Email T MSupport flir com Service and Repair Email Repair flir com Customer Support Telephone 1 855 499 3662 option 3 to...

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