7/29/2019 FLUKE 320 SERIES
1/2
2012 Fluke Corporation. Specications subject to change wi thout
notice. Printed in U.S.A. 6/2
Modification of this document is not permitted without written
permission from
Does your clamp report the true-rmsreading?
Is the problem with your motor oryour clamp?
Make sure your clamp meter isworking or you, not against
you.
Imagine that you have spent t he whole daytroubleshooting a
problem with a motor onlyto discover that the problem wasnt
reallythe motor, but the clamp you were us ing tomeasure it. You
stake your reputation on yourability to get the job done, be sure
yourclamp meter is working or you notagainst you.
First, make sure your clampmeter reports the true-rmsreading.
Otherwise noiserom everythingincluding a variablerequency drive
tocompact fuorescentbulbs can result ina less accurate
reading.
Have you ever dropped your clamp?
Do you use your clamp outside?
Ever used you clamp to pry apart wires?
I so, make sure you clamp can workwhere and how you do.
Making accurate and repeatable results in alaboratory is a good
start. But you dont alwayswork in a clean and controlled
environment.Beore making a purchase, check whether theclamp is
specied to work in t he environment
you do.
Be sure you dont buy a clamp specied orindoor use only or with a
minimum operatingrange warmer than 15 F i you think youmight need
to make measurements outside. Ithe clamp isnt designed or the
outdoors the
measurements you get might not be accurate.
Finally be sure the clamp you are using is ruggedenough to
continue to give reliable results ateryears o prying wires apart,
drops rom laddersand bouncing around the back o your truck.
Does the clamp have the correct rating forthe work you are
doing?
Can you use the meter easily whenwearing personal protective
equipment?
I the answer is no, you could bein danger.
Your test and measurement tools are a criticalbarrier between
you and danger. They are quiteliterally an extension o your body
into a verydangerous environment. First things rst, be sureyou
choose a clamp meter with an appropriatecategory rating or the work
you are doing.
Second, choose a brand with a reputation orproviding sae and
reliable test equipment.Anyone can buy a clamp meter and put
theirbrand on it. Only a ew manuacturers design,build and test
their own equipment to exceedinternational saety standards.Finally,
your clamp meter is part o a saetysystem that includes personal
protectiveequipment (PPE). In addition to having the rightPPE, be
sure that you can easily operate your
test and measurement equipment with thatgear in place.
Not using all the feclamp meter?
I so, you could beand unctionality.
These days you can geanything built into aclamp meter
(tapemeasure anyone?). Thmore gadgets thatare built into a
clampmeter, the harder itbecomes to use andthe worse it
perorms.Instead o trying toget the most eaturespossible, chose a
metethat has the measuremunctions you need to the job done,
withoutany o fu that doesnmake sense. Plus, youdont end up paying
o
eatures irrelevant to tjob at hand.
Four Things to ConsiderWhen Buying a Clamp Meter
7/29/2019 FLUKE 320 SERIES
2/2
Fluke 324 Fluke 325
Measurement capability:
400 A ac current measurement
600 V ac and dc voltagemeasurement
True-rms ac voltage and currentor accurate measurements
onnon-linear signals
Resistance measurement upto 4000 with continuitydetection
Features: Slim, ergonomic design
CAT IV 300V/CAT III 600 Vsaety rating
Hold buttonTwo-year warranty
Sot carrying case
Measurement capability:
400 A ac current measurement
600 V ac and dc voltagemeasurement
True-rms ac voltage andcurrent or accuratemeasurements on
non-linearsignals
Resistance measurement upto 4000 with continuitydetection
Temperature andcapacitance measurement
Features:
Slim, ergonomic designBacklight display
CAT IV 300V/CAT III 600 Vsaety rating
Hold buttonTwo-year warranty
Sot carrying case
Measurement capability:
400 A ac and dc current measurement
600 V ac and dc voltage measurement
True-rms ac voltage and current
or accurate measurements onnon-linear signals
Resistance measurementup to 40 k with continuitydetection
Temperature and capacitancemeasurement
Frequency measurementMin/Max unctionalityFeatures:
Slim, ergonomic design
Backlight display
CAT IV 300V/CAT III 600 Vsaety rating
Hold buttonTwo-year warranty
Sot carrying case
Technical specifcations
AC current Range Accuracy
400.0 A 2 % 5 digits (45 Hz to 65 Hz)2.5 % 5 digits (65 Hz to
400 Hz)
AC voltage Range Accuracy
600.0 V 1.5 % 5 digits
DC voltage Range Accuracy
600.0 V 1.0 % 5 digits
Resistance Range Accuracy
400.0 1.0 % 5 digits
4000
Continuity 70
Data hold Yes
Category rating CAT III 600 V, CAT IV 300 V
Technical specifcations
AC current Range Accuracy
40.00 A 1.5 % 5 digits (45 Hz to 400 Hz)Note: Add 2 % or
position sensitivity400.0 A
AC voltage Range Accuracy
600.0 V 1.5 % 5 digits
DC voltage Range Accuracy
600.0 V 1.0 % 5 digits
Resistance Range Accuracy
400.0 1.0 % 5 digits
4000
Continuity 30
Capacitance 100.0 F to 1000 F
Backlight YesData hold Yes
Contact temperature -10.0 C to 400.0 C (14.0 F to 752.0 F)
Category rating CAT III 600 V, CAT IV 300 V
Technical specifcations
AC current Range Accuracy
40.00 A 2 % 5 digits (45 Hz to 65 Hz)2.5 % 5 digits (65 Hz to
400 Hz)400.0 A
AC voltage Range Accuracy
600.0 V 1.5 % 5 digits
DC voltage Range Accuracy
600.0 V 1.0 % 5 digits
Resistance Range Accuracy
400.0 1.0 % 5 digits
4000
40.00 k
Continuity 30
Capacitance 100.0 F to 1000 FFrequency 5.0 Hz to 500.0 Hz
Backlight Yes
Data hold Yes
Contact temperature -10.0 C to 400.0 C (14.0 F to 752.0 F)
Min/Max Yes
Category rating CAT III 600 V, CAT IV 300 V
Fluke 323
