AEMC CM605 User manual

AC/DC LOW CURRENT
CLAMP-ON METER
CM605
ENGLISH User Manual

Statement 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 #: 7000.02
Model #: CM605
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............................................................................... 2
1.1 International Electrical Symbols...........................................................3
1.2 Receiving Your Shipment.....................................................................3
1.3 Ordering Information ............................................................................3
2. PRODUCT FEATURES ...................................................................... 4
2.1 Control Features ..................................................................................4
2.2 Display Features ..................................................................................5
2.3 Button Functions ..................................................................................5
2.3.1 HOLD/PEAK Button ...............................................................5
2.3.2 ZERO Button...........................................................................5
3. SPECIFICATIONS............................................................................. 6
3.1 ElectricalSpecications .......................................................................6
3.2 EnvironmentalSpecications...............................................................7
3.3 MechanicalSpecications....................................................................8
3.4 SafetySpecications............................................................................8
4. OPERATION .................................................................................... 9
4.1 Preparation Before Use........................................................................9
4.2 AC Current Measurement ..................................................................10
4.3 DC Current Measurement..................................................................11
4.4 AC Voltage Measurement ..................................................................12
4.5 DC Voltage Measurement..................................................................13
4.6 Resistance Measurement ..................................................................14
4.7 Continuity Test....................................................................................15
4.8 Analog Output ....................................................................................16
5. MAINTENANCE ............................................................................. 17
5.1 Warning .............................................................................................17
5.2 Battery Replacement..........................................................................17
5.3 Cleaning.............................................................................................17
Repair and Calibration........................................................................................18
Technical and Sales Assistance .........................................................................18
Limited Warranty ................................................................................................19
Warranty Repairs................................................................................................19

2 AC Clamp-on Meter Model CM605
CHAPTER 1
INTRODUCTION
Warning
These safety warnings are provided to ensure the safety of personnel
and proper operation of the instrument.
• Readtheinstructionmanualcompletelyandfollowallsafetyinfor-
mation before operating this instrument.
• Onlyuseleads thatcomplywiththe IEC/EN 61010.Beforeusing
them, make sure that they are in safe working order.
• Onlyusefactorysuppliedleads.
• Neverexceedtheprotectionlimitvaluesindicatedinthespecica-
tions for each type of measurement.
• Never measure current while the test leads are connected to the
input jacks.
• Use extreme caution when measuring live systems with voltages
greater than 50VDC or 30VAC.
• Do not perform resistance or continuity tests on a live circuit.
• Useextremecarewhenworkingaroundbusbarsandbareconduc-
tors.
• Donotusethemeterinoverrange/overloadconditions(OL).
• Whenthemultimeterclampislinkedtothemeasurementcircuits,
do not touch any unused terminals.
• Beforechanging the function, disconnect the measurement leads
from the circuit measured.

AC Clamp-on Meter Model CM605 3
1.1 International Electrical Symbols
This symbol signies that the instrument is protected by double or rein-
forcedinsulation.Useonlyspeciedreplacementpartswhenservicingthe
instrument.
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.
1.2 Receiving Your Shipment
Upon receiving your shipment, make sure that the contents are consistent with the
packing list. Notify your distributor of any missing items. If the equipment appears
tobedamaged,leaclaimimmediatelywiththecarrierandnotifyyourdistributor
at once, giving a detailed description of any damage. Save the damaged packing
container to substantiate your claim. Do not use an instrument that appears to be
damaged.
1.3 Ordering Information
Model CM605 ..................................................................................Cat. #7000.02
Includes clamp-on meter, lead set (red & black lead) with needle point test probes,
carrying case, 2x1.5V AAA batteries and a user manual.

4 AC Clamp-on Meter Model CM605
CHAPTER 2
PRODUCT FEATURES
2.1 Control Features
1. Tapered jaws for
crowded wiring or areas
( Ø.45"- 12mm )
2. Safety barrier
anti-slip guard
3. Lever for jaw
opening/closing
4. LCD display
5.COM(Black)andPositive
(Red)inputterminaljacks
6. Data hold and Peak hold
buttons
7. Rotary range
selector switch
ZERO
OFF
HOLD
PEAK
Press
2 Sec
COM
600V
CAT II
1
2
3
4
6
7
5

AC Clamp-on Meter Model CM605 5
2.2 Display Features
Negative polarity
Auto shutdown
Low battery
AC mode
DC mode
Auto range
Zero(Relative)
Peak function
Hold function
Continuity
A V
Current / Voltage
Ω
Resistance
2.3 Button Functions
2.3.1 HOLD/PEAK Button
Data Hold Function: This function locks the displayed value.
• Toactivate,pressthisbuttonduringthemeasurement.The symbol
appears and the measurement is locked.
• Todeactivate,pressthebuttonagain.
Peak Hold Function: This function displays the peak value.
•To activate, press this button during a measurement until the symbol
appears.
• Thehighestmeasurementisstoredinmemory.
• To deactivate the PEAK function, press and hold down the button for
approximately2seconds.
2.3.2 ZERO Button
• Toactivate,presstheZERO button to enter the Zero mode.
• The symbol will appear and Zero the display.
The reading is stored as a reference value for subsequent measure-
ments.
• ToexittheZeromode,presstheZERO button again.

6 AC Clamp-on Meter Model CM605
CHAPTER 3
SPECIFICATIONS
3.1 Electrical Specifications
Reference Conditions: Accuracy given @ 23°C ± 5°C, 80% RH Max, Conductor centered in jaws, 45-65Hz, No
DC Component.
AC Current ( )
Range Resolution Accuracy Frequency
10A 1mA 2.0% R ± 10cts
50 to 500Hz
100A 10mA 80A: 2.0% R ± 10cts
>80A: 3.5% R ± 10cts
DC Current ( ) - Positive only*
Range Resolution Accuracy
10A 1mA 2.5% R ± 10cts
100A 10mA 80A: 2.5% R ± 10cts
>80A: 4.5% R ± 10cts
AC Volts ( )
Range Resolution Accuracy Impedance Frequency
600V 100mV 1.5% R ± 5cts 10MΩ, <50pF 40 to 500Hz
Overload Protection: 660Vrms
DC Volts ( ) - Positive only*
Range Resolution Accuracy Input Impedance
600V 100mV 1.0% R ± 2cts 10MΩ
Overload Protection: 660Vrms
* For negative measurement, add 2cts to the accuracy

AC Clamp-on Meter Model CM605 7
Resistance (Ω)
Range Resolution Accuracy Test Voltage Protection
10kΩ (9999Ω)1Ω1.0% R ± 3cts <3.0VDC 600Vrms
Continuity ( )
Buzzer Resolution Test Voltage Protection
<100Ω± 25Ω1Ω<3.0VDC 600Vrms
Analog Output
Range Output Frequency Output Impedance
AAC & ADC 10mV/A through
front banana jacks 0 to 20kHz @ ± 3db 3kΩ, <50pF
Digital display: 10,000-count4digitLCDdisplay(9999max)
Polarity:
When a negative signal is applied, the symbol appears.
Overload:
Iftherangeisexceeded,the symbol is displayed.
Low Battery Indicator:
is displayed when the voltage supplied by the batteries is lower than the operat-
ing voltage.
Power Supply:
2batteries-1.5VtypeAAA(LR03)
Auto-off:
Automaticshutdownafterapprox10minutewithover-ride
Sampling:
Approx2measurements/second
3.2 Environmental Specifications
Operating Temperature:
32°to104°F(0°to40°C),<80%RHmaxnon-condensing
Storage Temperature:
14°to140°F(-10°to60°C),<70%RHmaxnon-condensing
Altitude: 6000ft(2000m)

8 AC Clamp-on Meter Model CM605
3.3 Mechanical Specifications
Maximum Cable Diameter:
Ø0.45"(12mm)
Maximum Jaw Opening:
Ø0.60"(15mm)
Dimensions:
7.44x2.80x1.46"(189x71x37mm)
Weight:
6.5oz(180g)
3.4 Safety Specifications
IEC/EN 61010-1, 600V CAT II, 300V CAT III
- Insulation: Class II
- Pollution Degree: 2

AC Clamp-on Meter Model CM605 9
CHAPTER 4
OPERATION
4.1 Preparation Before Use
For your own safety and to prevent damage to the instrument, follow the
instructions given in this manual.
This instrument can be used for measurements:
• on circuits in installation Category II, in an environment with pollution
level 2, for voltages no greater than 600V in relation to the earth.
• oroncircuitsininstallationCategoryIII,inanenvironmentwithpollution
degree level 2, for voltages no greater than 300V in relation to the earth.
Denitionoftheinstallationcategories(seeIEC/EN61010-1publication):
CAT II: CAT II circuits are household or similar appliance power circuits, which may
carry medium-level transient over-voltage.
Example: household appliance and portable tool power supplies
CAT III: CAT III circuits are high-power appliance power circuits, which may carry
high-level transient over-voltage.
Example: industrial machinery or instrument power supplies
For your own safety, only use factory supplied leads and always check that they
are in perfect working order.

10 AC Clamp-on Meter Model CM605
4.2 AC Current Measurement
• Turntheswitchtothe range.
• Removethetestleadsbeforemeasuringcurrent.
• Clampthejawsaroundtheconductortobemeasured.
• Takethecurrentreadingafteritstabilizes.
WARNING: Immediately remove the test probes from the circuit
under test if overload “OL” is displayed.
ZERO
OFF
HOLD
PEAK
Press
2 Sec
COM
600V
CAT II
ZERO
OFF
HOLD
PEAK
Press
2 Sec
COM
600V
CAT II
CORRECT
INCORRECT
(two conductors from
different phases)

AC Clamp-on Meter Model CM605 11
4.3 DC Current Measurement
NOTE: Remove the test leads before measuring current
• Turntherotaryrangeswitchtothe range.
• Ifneeded,thedisplaymaybe“zeroed”.PresstheZERObuttontozerotheread-
ing.
• Pressthelevertoopenthejaws.
• Clamp the jaws around the conductor to be measured.
• Ifreadingisunstableandishardtoread,pushtheHOLD button and read the
measurement.
WARNING: Immediately unclamp the meter from the conductor under
test if overload " " is displayed.
ZERO
OFF
HOLD
PEAK
Press
2 Sec
COM
600V
CAT II

12 AC Clamp-on Meter Model CM605
4.4 AC Voltage Measurement
Automatic measurement range: 600VAC/DC
• Turntheswitchtothe range.
• Inserttheredleadtothered“+”inputjackandtheblackleadtotheblack
"COM" input jack.
• Bringthetestprobetipsintocontactwiththetestpoints.
• Takethevoltagereadingafteritstabilizes.
WARNING: Immediately remove the test probes from the circuit
under test if overload “OL” is displayed.
ZERO
OFF
HOLD
PEAK
Press
2 Sec
COM
600V
CAT II

AC Clamp-on Meter Model CM605 13
4.5 DC Voltage Measurement
Automatic measurement range: 600VAC/DC
• Turntheswitchtothe range.
• Inserttheredleadtothered“+”inputjackandtheblackleadtotheblack
"COM" input jack.
• Takethevoltagereadingafteritstabilizes.
WARNING: Immediately remove the test probes from the circuit
under test if overload “OL” is displayed.
ZERO
OFF
HOLD
PEAK
Press
2 Sec
COM
600V
CAT II

14 AC Clamp-on Meter Model CM605
4.6 Resistance Measurement
Automaticmeasurementranges:0to10kΩ
WARNING: When making a resistance measurement, make sure that
the power is off (dead circuit). It is also important that all capacitors
in the measured circuit be fully discharged.
• Turntherotaryswitchtothe range.
• Inserttheredleadtothered“+”inputjackandtheblackleadtotheblack
"COM" input jack.
• Bringthetestprobetipsintocontactwiththesampleundertest.
WARNING: If overload “OL” is displayed, the resistance exceeds the
measurement range or the circuit is open.
ZERO
OFF
HOLD
PEAK
Press
2 Sec
COM
600V
CAT II

AC Clamp-on Meter Model CM605 15
4.7 Continuity Test
WARNING: When testing continuity, make sure that the power is off
(dead circuit).
• Turntherotaryswitchtothe range..
• Inserttheredleadtothered“+”inputjackandtheblackleadtotheblack
"COM"inputjack.
• Bringthetestprobetipsintocontactwiththesampleundertest.
• ThebuzzersoundswhenthecircuittobecheckedisDCorhasaresis-
tanceoflessthan100Ω±25Ω.
WARNING: If overload "OL" is displayed, the continuity exceeds the
measurement range or the circuit is open.
ZERO
OFF
HOLD
PEAK
Press
2 Sec
COM
600V
CAT II
ZERO
OFF
HOLD
PEAK
Press
2 Sec
COM
600V
CAT II

16 AC Clamp-on Meter Model CM605
4.8 Analog Output
• Turntherotaryswitchtothe or range.
• Inserttheredleadtothered“+”inputjackandtheblackleadtotheblack
"COM" input jack.
• Connecttheendsofbothcablestoanoscilloscopeoranothermultimeter.
• Clampthejawsaroundtheconductortobemeasured.
• Readtheanalogsignalontheoscilloscopeormultimeter.
- If the signal measured is continuous, the output signal will be DC.
- If the signal measured is alternating, the output signal will be AC.
ZERO
OFF
HOLD
PEAK
Press
2 Sec
COM
600V
CAT II

AC Clamp-on Meter Model CM605 17
CHAPTER 5
MAINTENANCE
5.1 Warning
• Removethetestleadsfromanyinputbeforeopeningthecase.Donotoperate
the instrument without a battery case cover.
• Toavoidelectricalshock,donotattempttoperformanyservicingunlessyouare
qualiedtodoso.
• Ifthemeterisnotgoingtobeusedforalongperiodoftime,takeoutthebatter-
ies. Do not store the meter in high temperatures or high humidity.
• Toavoidelectricalshockand/ordamagetotheinstrument,donotgetwateror
other foreign agents into the probe.
5.2 Battery Replacement
• Thebatterieswillneedtobereplacedwhenthe symbol appears on the
display.
• ThemetermustbeintheOFFpositionanddisconnectedfromanycircuitor
input.
• Removethebatterycoverscrewswithascrewdriver.
• Replacetheoldbatterieswithtwonew1.5VAAA(LR03)batteries.
• Replacethebatterycompartmentcoverandtightenthescrews.
5.3 Cleaning
• Tocleantheinstrument,wipethecasewithadampclothandmilddetergent.Do
not use abrasives or solvents.
• Donotgetwaterinsidethecase.Thismayleadtoelectricalshockordamageto
the instrument.

18 AC Clamp-on Meter Model CM605
Repair and Calibration
Toensurethatyourinstrumentmeetsfactoryspecications,werecommend
that it be scheduled back to our factory Service Center at one-year intervals
for recalibration, or as required by other standards or internal procedures.
For instrument repair and calibration:
You must contact our Service Center for a Customer Service Authorization
Number(CSA#).Thiswillensurethatwhenyourinstrumentarrives,itwillbe
trackedandprocessedpromptly.PleasewritetheCSA#ontheoutsideofthe
shipping container. If the instrument is returned for calibration, we need to
know if you want a standard calibration, or a calibration traceable to N.I.S.T.
(Includescalibrationcerticateplusrecordedcalibrationdata).
Ship To: AEMC®Instruments
15 Faraday Drive
Dover, NH 03820 USA
 Tel: (800)945-2362(Ext.360)
  (603)749-6434(Ext.360)
 Fax:(603)742-2346or(603)749-6309
[email protected]
(Orcontactyourauthorizeddistributor)
Costs for repair, standard calibration, and calibration traceable to N.I.S.T. are
available.
NOTE: You must obtain a CSA# before returning any instrument.
Technical and Sales Assistance
Ifyouareexperiencinganytechnicalproblems,orrequireanyassistancewith
theproperoperationorapplicationofyourinstrument,pleasecall,mail,faxor
e-mail our technical support team:
AEMC®Instruments
 200FoxboroughBoulevard
 Foxborough,MA02035USA
 Phone:(800)343-1391
  (508)698-2115
 Fax: (508)698-2118
[email protected]
www.aemc.com
NOTE: Do not ship Instruments to our Foxborough, MA address.