FLIR CM72 User Manual Download Page 9

FLIR

 

CM72_CM74

 

USER

 

MANUAL

                                                          

Document

 

Identifier:

 

CM72_CM74

en

US_AA

 

9

4.2

 

Function

 

Switch

 

 

Select

 

this

 

position

 

when

 

connecting

 

a

 

FLIR

 

Flex

 

Clamp

 

Adaptor.

 

 

Select

 

this

 

position

 

to

 

measure

 

in

 

the

 

low

 

impedance

 

mode.

 

 

Select

 

this

 

position

 

to

 

switch

 

the

 

meter

 

OFF

 

(full

 

power

 

saving

 

mode).

 

 

Select

 

this

 

position

 

to

 

measure

 

AC/DC

 

Voltage

 

through

 

the

 

probe

 

inputs.

 

  

 

The

 

meter

 

can

 

measure

 

resistance

 

and

 

continuity

 

through

 

the

 

probe

 

inputs.

 

The

 

type

 

of

 

measurement

 

is

 

selected

 

by

 

the

 

MODE

 

button.

 

  

 

The

 

meter

 

can

 

measure

 

capacitance

 

and

 

diode

 

through

 

the

 

probe

 

inputs.

 

The

 

type

 

of

 

measurement

 

is

 

selected

 

by

 

the

 

MODE

 

button.

 

   

 

Amps

 

AC/DC

 

(CM74)

 

and

 

Amps

 

AC

 

only

 

(CM72).

 

The

 

meter

 

can

 

measure

 

current

 

through

 

the

 

clamp

 

jaws.

 

4.3

 

Function

 

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

 

5.3

 

Auto/Manual

 

range

 

mode

 

 

In

 

Manual

 

mode,

 

press

 

to

 

change

 

the

 

range

 

(scale);

 

to

 

return

 

to

 

Auto

 

range

 

mode

 

from

 

Manual

 

mode,

 

press

 

and

 

hold

 

for

 

>

 

2

 

seconds.

 

Toggle

 

normal

 

and

 

Hold

 

modes,

 

see

 

section

 

5.4

 

Hold

 

mode

  

Press

 

for

 

>

 

2

 

seconds

 

to

 

enable/disable

 

MIN/MAX

 

mode.

 

While

 

in

 

MIN/MAX

 

mode,

 

short

 

presses

 

step

 

MIN>MAX>MIN.

 

Press

 

and

 

hold

 

for

 

>2

 

seconds

 

to

 

exit

 

the

 

MIN/MAX

 

mode.

 

   

For

 

the

 

CM74:

 

Press

 

to

 

enable/disable

 

the

 

display

 

backlight.

 

Press

 

and

 

hold

 

for

 

>

 

2

 

seconds

 

to

 

switch

 

the

 

Work

 

Light

 

ON/OFF.

 

For

 

the

 

CM72

 

press

 

to

 

enable/disable

 

the

 

LCD

 

backlight.

 

 

For

 

the

 

CM72

 

press

 

to

 

enable/disable

 

the

 

Work

 

Light.

 

 

For

 

the

 

CM74

 

only.

 

In

 

the

 

DCA

 

mode,

 

press

 

to

 

zero

 

the

 

display.

 

In

 

the

 

ACA

 

mode

 

press

 

to

 

enable

 

the

 

inrush

 

current

 

mode.

 

Summary of Contents for CM72

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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