AEMC 670 User manual
CLAMP-ON METER
670
675
ENGLISH User Manual
Certificate of Compliance
Chauvin Arnoux
®
, Inc. d.b.a. AEMC
®
Instruments
certifies that this instrument has been calibrated
using standards and instruments traceable to
international standards.
We guarantee that at the time of shipping your
instrument has met its published specifications.
An NIST traceable certificate may be
requested at the time of purchase, or obtained
by returning the instrument to our repair and
calibration facility, for a nominal charge.
The recommended calibration interval for this
instrument is 12 months and begins on the date
of receipt by the customer. For recalibration,
please use our calibration services. Refer to our
repair and calibration section at www.aemc.com.
Serial #: ________________________________
Catalog #: 2117.49 / 2117.50
Model #: 670 / 675
Please fill in the appropriate date as indicated:
Date Received: ___________________________
Date Calibration Due: ______________________
Chauvin Arnoux®, Inc. d.b.a AEMC®Instruments
www.aemc.com
Table of Contents
1. INTRODUCTION........................................ 3
1.1 International Electrical Symbols .............. 4
1.2 DenitionofMeasurementCategories.... 4
1.3 ReceivingYourShipment ........................ 5
1.4 OrderingInformation ............................... 5
1.4.1 Accessories/ReplacementParts.. 5
2. PRODUCT FEATURES............................... 6
2.1 Description .............................................. 6
2.2 Model670/675ControlFeatures............. 7
2.3 LCDDisplay ............................................ 8
2.4 ButtonFunctions ..................................... 9
2.4.1 HOLDButton ............................... 9
2.4.2 CorrectionofZeroin
DCmeasurement........................ 9
2.4.3 AutoPowerOFF.......................... 9
2.4.4 DISPLAYButton ........................ 10
2.4.5 MIN/MAXFunction(500ms) ...... 10
2.4.6 PeakFunction(1ms).................. 10
2.4.7 BacklightButton......................... 10
3. SPECIFICATIONS.................................... 11
3.1 ElectricalSpecications ........................ 11
3.2 MechanicalSpecications..................... 13
3.3 EnvironmentalSpecications ................ 14
3.4 SafetySpecications............................. 14
4. OPERATION ............................................ 15
4.1 ACCurrentMeasurement ..................... 15
4.2 ACVoltageandCurrent
MeasurementSimultaneously............... 16
4.3 DCCurrentMeasurement(675only) ......17
4.4 ACVoltMeasurement ........................... 18
4.5 DCVoltMeasurement ........................... 19
4.6 ResistanceMeasurement ..................... 20
4.7 ContinuityMeasurement ....................... 21
4.8 TemperatureMeasurement ................... 22
4.9 FrequencyMeasurementUsing
VoltageInput ......................................... 23
4.10 FrequencyMeasurementUsing
CurrentInput ......................................... 24
5. MAINTENANCE....................................... 25
5.1 Warning!................................................ 25
5.2 Cleaning ................................................ 25
5.3 BatteryReplacement............................. 25
RepairandCalibration............................................ 27
TechnicalandSalesAssistance ............................. 27
Limited Warranty .................................................... 28
WarrantyRepairs.................................................... 28
Clamp-onMeterModels670and675
3
CHAPTER 1
INTRODUCTION
Warning
● Readtheusermanualbeforeoperatingand
followallsafetyinformation.
● Onlyusethemeterasspeciedinthisuser
manual.
● Neverusethismeteronacircuitwithvolt-
agesgreaterthan600Vrms@50/60Hz,
CATIVor1000V,CATIII.
● Nevermeasurecurrentwhilethetestleads
areconnectedtotheinputjacks.
● Donotoperatethemeterifthebodyortest
leadslookdamaged.
● Checktherotaryrangeswitchandmake
sureitisatthecorrectpositionbeforeeach
measurement.
● Donotperformresistanceandcontinuity
testonalivecircuit.
● Useextremecautionwhenmeasuringlive
systemswithvoltagesgreaterthan60VDC or
30VAC.
● Useextremecarewhenworkingaroundbus
barsandbareconductors.
● Donotusethemeterinoverrange/overload
conditions( ).
● Foraccuratereadings,changethebattery
whenthe symbolappears.
4
Clamp-onMeterModels670and675
1.1 International Electrical Symbols
This symbol signifies that the instrument is protected by
double or reinforced insulation.
This symbol on the instrument indicates a WARNING and that
the operator must refer to the user manual for instructions
before operating the instrument. In this manual, the symbol
preceding instructions indicates that if the instructions are not
followed, bodily injury, installation/sample and product damage
may result.
Risk of electric shock. The voltage at the parts marked with this
symbol may be dangerous.
This symbol refers to a type A current sensor. This symbol sig-
nifies that application around and removal from HAZARDOUS
LIVE conductors is permitted.
Ground.
In conformity with WEEE 2002/96/EC.
1.2 Definition of Measurement Categories
CAT II: Formeasurementsperformedoncircuitsdirectly
connected to the electrical distribution system.
Examples are measurements on household
appliancesorportabletools.
CAT III: For measurements performed in the building
installation at the distribution level such as on
hardwired equipment in xed installation and
circuitbreakers.
CAT IV: For measurements performed at the primary
electrical supply (<1000V) such as on primary
overcurrent protection devices, ripple control
units,ormeters.
Clamp-onMeterModels670and675
5
1.3 Receiving Your Shipment
Upon receiving your shipment, make sure that the con-
tentsareconsistentwiththepackinglist.Notifyyourdis-
tributorofanymissingitems.Iftheequipmentappearsto
bedamaged,leaclaimimmediatelywiththecarrierand
notifyyourdistributoratonce,givingadetaileddescription
ofanydamage.Savethedamagedpackingcontainerto
substantiateyourclaim.
1.4 Ordering Information
TRMS Clamp-on Meter Model 670............Cat. #2117.49
Includes meter, set of test leads (red/black with safety needle tips),
K-type thermocouple, one 9V battery, soft carrying case and a user
manual.
TRMS Clamp-on Meter Model 675............Cat. #2117.50
Includes meter, set of test leads (red/black with safety needle tips),
K-type thermocouple, one 9V battery, soft carrying case and a user
manual.
1.4.1 Accessories and Replacement Parts
SoftCarryingCase ......................................Cat. #2118.89
K-typeThermocouple ..................................Cat. #2118.90
Set of 2, 5 ft color-coded leads....................Cat. #2152.05
6
Clamp-onMeterModels670and675
CHAPTER 2
PRODUCT FEATURES
2.1 Description
The AEMC® Models 670 and 675 are general purpose
professional clamp-on meters that measure up to the
tougheststandards.Thesemetersoeracompletesetof
measurementranges(ACAmps,DCAmps[675only],AC
Volts,DCVolts,Ohms,Continuitywithbeeper,Frequency
from V or A, and Temperature) and are in compliance
with international safety and quality standards to ensure
professionalandreliablemeasuringtools.
Thesemetersaredesignedtomeasureanddisplayamps
and volts at the same time. They are also auto-ranging
andprovide the bestmeasurement rangeand resolution
fortroubleshooting.
The Models 670 and 675 are sized for comfortable,
one-handed operation. The tapered and hooked jaw
design facilitates maneuvering in crowded wiring and
breaker panels, making it easy to select conductors.
The jaw opening accommodates one 750 kcmil cable or
two 350 kcmil cables. The large and easy-to-read 9999-
count LCD features comprehensive user information
symbols, such as low battery, polarity, overload, and an
analog bargraph for easy trend readings. Both models
are equipped with a Data Hold function that freezes the
measurementforlaterviewing,Min/Max,andPeakfunction
forcaptureofsignals.
TheModel670and675areTrueRMSclamp-onmeters
that provide RMS measurements for today’s non-linear
electrical environments.
Clamp-onMeterModels670and675
7
2.2 Model 670/675 Control Features
DISPLAY
MIN MAX
PEAK
HOLD
DUAL TRMS DISPLAY
1000A
1000V CAT III
600V CAT IV
1000V
CAT III
MODEL 670
TRMS CLAMP METER
1
2
3
4
5
6
7
8
DUAL TRMS DISPLAY
ZERO
Press 2s
1
2
3
4
5
6
7
8
1000A
1000V CAT III
600V CAT IV
MODEL 675
TRMS CLAMP METER
1400A
1000V
CAT III
1. JawAssemblyModel670-1.65"(42mm)
Model675-1.58"(40mm)
2. SafetyBarrierAnti-slipGuard
3. LeverforJawOpening/Closing
4. ButtonFunctions(see§2.4)
5. LCDDisplay
6. Positive(red)InputandCOM(black)Input
7. DataHoldButton
8. RotaryRangeSelectorSwitch
8
Clamp-onMeterModels670and675
2.3 LCD Display
Icon Function
AUTO Automatic Range
HOLD Freezes the Display
MIN Minimum Value
MAX Maximum Value
PEAK Peak Value
ZERO ADC Zero Function (675 only)
DC Input
AC Input
Auto Power OFF Indication
Low Battery
Continuity Beeper Enabled
ΩResistance Measurement Indicator
A V Current /Voltage Indicator
C°/F°Degrees Celsius/Fahrenheit
Hz Frequency Measurement Indicator
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1
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