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POWER CLAMP-ON METER
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
405
User ManualENGLISH
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CONTENTS
RECEIVING YOUR SHIPMENT........................................................................... 8
ORDERING INFORMATION................................................................................ 8
1 PRESENTATION.......................................................................................... 9
1.1 THEROTARYSWITCH.................................................................................10
1.2 THEFUNCTIONBUTTONS..........................................................................11
1.3 THEDISPLAY................................................................................................12
1.3.1 Display Symbols ........................................................................... 12
1.3.2 Measurement Capacity Exceeded (OL)........................................ 13
1.4 THETERMINALS...........................................................................................14
2 THE BUTTONS........................................................................................... 15
2.1
2.2 (YELLOW)BUTTON(SECOND FUNCTION)..............................................16
2.3 BUTTON................................................................................................16
2.4 BUTTON................................................................................................17
2.4.1 Normal Mode ................................................................................ 17
2.4.2 The MAX/MIN Mode + Activation of the HOLD Mode ................... 18
2.4.3 Access to the True Inrush™ Mode ( set to )................. 18
2.5 BUTTON................................................................................................19
2.5.1 Normal Mode ................................................................................ 19
2.5.2 The Hz Function + Activation of the HOLD Mode ......................... 19
2.6 BUTTON..............................................................................................20
3 USE............................................................................................................. 21
3.1 INSTALLINGTHEBATTERIES....................................................................21
3.2 TURNINGTHECLAMP-ONMETERON......................................................21
3.3 TURNINGTHECLAMP-ONMETEROFF....................................................21
3.4 CONFIGURATION.........................................................................................22
3.4.1 Configuring the Maximum Resistance for Continuity.................... 22
3.4.2 Auto Power OFF........................................................................... 22
3.4.3 Configuring the Threshold for True InRush™ Measurement......... 22
3.4.4 Default Configuration .................................................................... 23
3.5 VOLTAGEMEASUREMENT(V)...................................................................23
3.6 CONTINUITYTEST .................................................................................24
3.6.1 Lead Resistance Compensation................................................... 25
3.7 RESISTANCEMEASUREMENT ..............................................................25
3.8 DIODETEST ............................................................................................26
3.9 CURRENTMEASUREMENT(A)..................................................................26
3.9.1 AC Measurement.......................................................................... 26
3.9.2 DC or AC+DC Measurement ....................................................... 27
BUTTON.................................................................................................15
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3.10 STARTINGCURRENTOROVERCURRENT(TrueInRush™)
MEASUREMENT...........................................................................................28
3.11 POWERMEASUREMENTSW,VA,VAR ANDPF........................................29
3.11.1 Single-Phase Power Measurement............................................... 29
3.11.2 Balanced 3-Phase Power Measurement....................................... 30
PHASEROTATIONMODE .................................................................31
3.12
3.13 FREQUENCYMEASUREMENT(HZ)...........................................................32
3.13.1 Frequency Measurement (V) ........................................................ 32
3.13.2 Frequency Measurement (A) ........................................................ 32
3.13.3 Frequency Measurement (W) ....................................................... 33
3.14 MEASUREMENTOFTHELEVELOFHARMONICS(THD)AND
THEFREQUENCYOFTHEFUNDAMENTAL(NETWORK)......................34
3.14.1 Measurement of THD and Frequency of the Fundamental (V) ..... 34
3.14.2 Measurement of THD and Frequency of the Fundamental (A) ..... 34
4 SPECIFICATIONS...................................................................................... 36
4.1 REFERENCECONDITIONS.........................................................................36
4.2 SPECIFICATIONSUNDERTHEREFERENCECONDITIONS..................36
4.2.1 DC Voltage Measurement............................................................. 36
4.2.2 AC Voltage Measurement............................................................. 37
4.2.3 AC+DC Voltage Measurement...................................................... 37
4.2.4 DC Current Measurement............................................................. 38
4.2.5 AC Current Measurement............................................................. 38
4.2.6 AC+DC Intensity Measurement .................................................... 39
4.2.7 True Inrush™ Measurement......................................................... 39
4.2.8 Continuity Measurement............................................................... 39
4.2.9 Resistance Measurement ............................................................. 40
4.2.10 Diode test...................................................................................... 40
4.2.11 Active DC Power Measurements.................................................. 40
4.2.12 Active AC Power Measurements.................................................. 41
4.2.13 Active AC+DC Power Measurements........................................... 42
4.2.14 Measurement of Apparent AC Power ........................................... 42
4.2.15 Measurement of Apparent AC+DC Power .................................... 43
4.2.16 Measurement of Reactive AC Power............................................ 43
4.2.17 Measurement of reactive AC+DC power....................................... 44
4.2.18 Calculation of the Power Factor.................................................... 44
4.2.19 Frequency Measurements ............................................................ 45
4.2.20 Specifications in THDr .................................................................. 45
4.2.21 Specifications in THDf................................................................... 46
4.2.22 Indication of order of the phases................................................... 46
4.3 ENVIRONMENTALCONDITIONS ...............................................................46
4.4 MECHANICALSPECIFICATIONS ...............................................................47
4.5 POWERSUPPLY...........................................................................................47
4.6 COMPLIANCEWITHINTERNATIONALSTANDARDS..............................47
4.7 ENVIRONMENTALVARIATIONS................................................................48
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5 MAINTENANCE.......................................................................................... 49
5.1 WARNING......................................................................................................49
5.2 CLEANING .....................................................................................................49
5.3 REPLACEMENTOFTHEBATTERIES........................................................49
6 REPAIR AND CALIBRATION .................................................................... 50
7 TECHNICAL AND SALES ASSISTANCE.................................................. 50
8 LIMITED WARRANTY................................................................................ 51
9 WARRANTY REPAIRS .............................................................................. 51
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Thank you for purchasing a Model 405 Clamp-on Meter.
For best results from your instrument and for your safety, read the enclosed
operating instructions carefully and comply with the precautions for use. These
products must be only used by qualified and trained users.
Meanings of the symbols used on the device
CAUTION - Risk of Danger! Indicates a WARNING and that the operator
must refer to the user manual for instructions before operating the
instrument in all cases where this symbol is marked.
Risk of electric shock. The voltage at the parts marked with this symbol may
be dangerous.
Refers to a type A current sensor. This symbol signifies that application
around and removal from HAZARDOUS LIVE conductors is permitted.
1.5 V battery
The CE marking indicates compliance with European directives
Double insulation or reinforced insulation
In the European Union, this product is subject to a separate collection
system for recycling electrical and electronic components In accordance
with directive WEEE 2002/96/EC
AC – Alternating current
AC and DC – Alternating and direct current
Ground/Earth
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PRECAUTIONS FOR USE
This device complies with safety standards IEC-61010-1 and 61010-2-032 for voltages of
1000V in category IV at an altitude of less than 2000m, indoors, with a degree of pollution
not exceeding 2.
These safety instructions are intended to ensure the safety of persons and proper operation
of the device.
The operator and/or the responsible authority must carefully read and clearly
understand the various precautions to be taken in use.
If this instrument is used other than as specified, the protection it provides may be
compromised, thereby endangering you.
Do not use the instrument in an explosive atmosphere or in the presence of flammable
gases or fumes.
Do not use the instrument on networks of which the voltage or category exceeds those
mentioned.
Do not exceed the rated maximum voltages and currents between terminals or with
respect to earth.
Do not use the instrument if it appears to be damaged, incomplete, or not properly
closed.
Before each use, check the condition of the insulation on the leads, housing, and
accessories. Any element of which the insulation is deteriorated (even partially) must
be set aside for repair or scrapped.
Use leads and accessories rated for voltages and categories at least equal to those of
the instrument. If not, an accessory of a lower category lowers the category of the
combined Clamp + accessory to that of the accessory.
Observe the environmental conditions of use.
Do not modify the instrument and only use factory replacement parts. Repairs and
adjustments must be done by approved qualified personnel.
Replace the batteries as soon as the symbol appears on the display of the unit.
Disconnect all leads before opening the battery compartment cover.
Use personal protective equipment when conditions require.
Keep your hands away from the unused terminals of the instrument.
When handling the test probes, alligator clips, and clamp ammeters, keep your fingers
behind the physical guard.
As a safety measure, and to avoid repeated overloads on the inputs of the device,
configuration operations should only be performed when the device is disconnected
from all dangerous voltages.
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MEASUREMENT CATEGORIES
Definitions of the measurement categories:
CAT II: Circuits directly connected to the low-voltage installation.
Example: power supply to household electrical appliances and portable tools.
CAT III: Power supply circuits in the installation of the building.
Example: distribution panel, circuit-breakers, fixed industrial machines or
devices.
CAT IV: Circuits supplying the low-voltage installation of the building.
Example: power lines, meters, and protection devices.
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, file 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.
ORDERING INFORMATION
Clamp-on Meter Model 405.......................................................... Cat. #2139.50
Includes set of 2 color-coded silicone insulated test leads, test probes and alligator clips,
soft carrying case, 4x1.5V AA batteries and user manual.
Replacement Parts:
Soft Carrying Case.........................................................................................Cat. #2139.72
Set of 2 Color-coded Silicone Test Leads, Test Probes & Alligator Clips ........Cat. #2152.05
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1
3
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1 PRESENTATION
The Clamp-on Meter Model 405 is a professional electrical measuring instrument
that combines the following functions:
Current measurement
Measurement of InRush current / overcurrent (True InRush™)
Voltage measurement
Frequency measurement
Measures harmonic distortion (THD)
Continuity test with buzzer
Resistance measurement
Diode test
Power measurements (W, VA, var and PF)
Phase order indication
Item Designation See §
Jaws with centering marks
1
(see connection principles)
2
2 Physical Guard 3 Rotary Function Switch 1.1
4 Function Buttons 2
4
5
5 Backlit Display 1.3
6 Input Terminals 1.4
7 Trigger -
3.5 to
3.12
6
Figure 1: Clamp-on Meter Model 405
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1.1 THE ROTARY SWITCH
The rotary switch has six positions. To access the , , , ,
functions, set the switch to the desired function. The functions are described in
the table below.
6
5
4
3
2
1
Figure 2: The Function Rotary Switch
Item Function See §
1 OFF mode – Turns the clamp-on meter off 3.3
2 AC, DC, AC+DC voltage measurement (V) 3.5
3 Continuity test
Resistance measurement
Diode test
4 AC, DC, AC+DC current measurement (A) 3.9
5 Power measurements (W, var, VA) and calculation of the
power factor (PF) AC, DC, AC+DC
6
Phase rotation order indicator - 3.12
3.6
3.7
3.8
3.11
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1.2 THE FUNCTION BUTTONS
1 2 3
4 5 6
Figure 3: The Function Buttons
Item Function See §
1 Holds the last value on the display
Zero correction ADC/A
Lead resistance compensation in the continuity and
ohmmeter functions
2 Selects the type of measurement and configuration
functions (AC, DC, AC+DC)
Selection of single-phase or 3-phase measurement
3 Enables/disables display backlighting 2.3
4 Enables/disables the MAX/MIN/PEAK mode
Enables/disables the True InRush™ mode in current
measurement (A)
5 Performs Frequency measurements (Hz) and selects
measurement of harmonic distortion (THD)
Display of the powers W, VA, var and PF
6 Activation of ΔREL mode – Displays differential and
relative values
AC+DC/WDC/WAC+DC
2.1
3.9.2
3.6.1
2.2
2.4
2.5
2.6
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1.3 THE DISPLAY
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7
1
2
3
5
Figure 4: The Display
Item Function See §
1 Mode selection display 2
2 Display of the measurement value and unit 3.5 to 3.12
3 Display of the MAX/MIN/PEAK modes 2.4
4 Type of measurement (AC or DC) 2.2
5 Total 3-phase power measurements 3.11.2
6 Selected resistance mode display 1.1
7 Low battery indication 5.3
1.3.1 Display Symbols
6
Symbol Designation
AC
DC
AC+DC
REL
Ref
Max
Min
PEAK+
Alternating current or voltage
Direct current or voltage
Alternating and direct current or voltage
Relative value, with respect to a reference
Reference value
Storage of the values and display hold
Maximum DC or RMS value
Minimum DC or RMS value
Maximum peak value
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PEAK-
Minimum peak value
Balanced total 3-phase power measurement
V
Hz
W
A
%
Ω
m
k
var
VA
PF
THDf
THDr
Volt
Hertz
Watt
Ampere
Percentage
Ohm
Milli- prefix
Kilo- prefix
Reactive power
Apparent power
Power factor
Total harmonic distortion with respect to the fundamental
Total harmonic distortion with respect to the true RMS
value of the signal.
Phase order indication
Lead resistance compensation
Continuity test
Diode test
Auto Power Off disabled
Low battery indicator
The display of “rdy”, for “ready”, indicates that the device is ready (Phase Order
Indication function).
1.3.2 Measurement Capacity Exceeded (OL)
The OL (Over Load) symbol is displayed when the display capacity is exceeded.
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1.4 THE TERMINALS
The terminals are used as follows:
Figure 5: The Terminals
Item Function
1
COM (black) Input Terminal Jack
+ Positive (red) Input Terminal Jack
2
1 2
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2 THE BUTTONS
A
The buttons respond differently to short, long, and sustained presses.
The , and keys provide additional functions as well as the
detection and acquisition of parameters complementary to the basic
measurements.
Each of these buttons can be used independently of the others or in
conjunction with each other. This makes navigation simple and intuitive
when reviewing measurement results.
It is possible, for example, to either look up in sequence the MAX, MIN,
etc. values of the RMS voltage alone, or look up in sequence all of the
MAX (or MIN, or PEAK) values of all power measurements (W, VA, var,
etc.).
In this section, the icon represents the possible positions of the switch for the
button’s functionality.
2.1
BUTTON
This button is used to:
Store and look up the last values acquired specific to each function (V, A,
, W) according to the specific modes previously activated (MAX/MIN).
The present display is then maintained while the detection and acquisition
of new values continues.
Perform automatic lead resistance compensation (see § 3.6.1).
Perform automatic zero correction in A
DC/AC+DC
NOTE: This button is invalid for the Phase Order Indication function.
Successive
presses on
First press: Holds the last value displayed
Second press: Returns to normal display mode
(the value of each new measurement is
displayed)
DC
long
(> 2 sec)
long
(> 2 sec)
A
W
AC+DC
W
AC+DC
Performs automatic zero correction (see 3.9.2)
NOTE: This mode operates if the MAX/MIN or
DC
HOLD modes (short press) are first de activated
Performs automatic lead resistance
compensation (see 3.6.1)
and WDC/
Function
AC+DC
(see § 3.9.2).
See § 2.4.2 and § 2.5.2 for the button functionality in combination with the
and buttons.
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2.2 (YELLOW) BUTTON (SECOND FUNCTION)
This button is used to select the type of measurement (AC, DC, AC+DC) and the
second functions marked in yellow next to the relevant positions of the switch.
It can also be used to modify the default values in the configuration mode
(see § 3.4).
NOTE: This button is invalid in the MAX/MIN/PEAK, HOLD and ΔREL modes.
Successive
presses on
short
long (>2 sec)
2.3 BUTTON
Successive
presses on
Function
- Selects AC, DC or AC+DC. Depending on
your choice, the screen displays AC, DC or
AC+DC
- Cycles through the continuity , and
diode test modes and returns to the
continuity test
- Resets the measurement process for the
phase order indication function
- Displays the total 3-phase power of a
balanced system ( is displayed). Press
again to return to the display of the singlephase power ( is off)
Function
- Enables/disables display backlighting
NOTE: The backlighting is automatically disabled at the end of 2 minutes.
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2.4 BUTTON
2.4.1 Normal Mode
This button activates the detection of the MAX, MIN, PEAK+ and PEAK- values of
the measurements made.
Max and Min are the extreme mean values in DC and the extreme RMS values in
AC. Peak+ is the maximum instantaneous peak and Peak- is the minimum
instantaneouspeak.
NOTE: In this mode, the Auto Power Off function of the device is automatically
disabled. The symbol is displayed on the screen.
Successive presses on
short
long (> 2 sec)
Function
First press: Activates detection of the
MAX/MIN/PEAK values
Second press: Displays the MAX, MIN,
PEAK+ or PEAK- value successively
Third press: Returns to the display of the
present measurement without exiting from
the mode (the values already detected are
not erased)
NOTE: The MAX, MIN, PEAK+ or PEAKsymbols are all displayed, but only the
symbol of the measurement selected
blinks.
Example: If MIN has been selected, MIN
blinks and MAX, PEAK+, PEAK- are lit
steadily.
- Activates the detection of MAX/MIN
values
- Displays the MAX or MIN value
successively
- Returns to the display of the present
measurement without exiting from the
mode (the values already detected are
not erased).
- Exits the MAX/MIN/PEAK mode. The
values previously recorded are then
erased.
NOTE: If the HOLD function is enabled, it
is not possible to exit from the
MAX/MIN/PEAK mode. The HOLD
function must first be disabled first.
NOTE : ΔREL function can be used with the functions of the MAX/MIN/PEAK mode.
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2.4.2 The MAX/MIN Mode + Activation of the HOLD Mode
Successive presses on
- Displays the MAX/MIN/PEAK values
detected before the button was
short
NOTE: The HOLD function does not interrupt the acquisition of new MAX, MIN, PEAK
values
pressed.
- When the button is pressed, the
last value is held on the display.
Function
2.4.3 Access to the True Inrush™ Mode ( set switch to )
This button allows measurement of the True Inrush™ current (starting current, or
overcurrent in steady-state operation) for AC or DC current only (not operational
in AC+DC).
Successive presses on
long (>2 sec)
short (<2 sec)
Note: A short press
is functional only if a True
InRush value has been
detected.
Function
- First press: Enters the True InRush™
mode
- "Inrh" is displayed for 3s (the
backlighting blinks)
- The triggering threshold is displayed for
5s (the backlighting is steady)
- "------" is displayed and the "A" symbol
flashes (backlighting turns off)
- After detection and acquisition, the
InRush current measurement is
displayed, after the calculations stage
"------" (backlighting off)
NOTE: The A symbol flashes to indicate
"surveillance" of the signal.
- Second press: Exits the True InRush™
mode (returns to simple current
measurement).
- Displays the PEAK+ value of the current
- Displays the PEAK- value of the current
- Displays the RMS True InRush™
current
NOTE: The A, AC and PEAK values flash
during this sequence.
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2.5 BUTTON
This button is used to display the frequency measurements of a signal.
NOTE: This button is not functional in the DC mode.
2.5.1 Normal Mode
Successive
presses on
short
long
then short
Displays:
- The frequency of the signal measured
- The present voltage (V) or current (A)
measurement
Displays:
- The apparent power (VA)
- The reactive power (var)
- The power factor (PF)
- The frequency of the signal
- The active power (W)
- Enters or exits from the level of harmonics
(THD) calculation and display mode
- Selects THDf, THDr or the frequency of the
fundamental
Function
2.5.2 The Hz Function + Activation of the HOLD Mode
Successive
presses on
- Holds the last frequency reading
- Successively displays the last held
frequency, then the voltage or the current
- Displays the stored values of THDf, then of
THDr, then of the frequency of the
fundamental
- NOTE: Pressing the button again
returns to realtime measurement updates.
Function
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2.6 BUTTON
This button is used to display and store the reference value in the unit of
magnitude measured, or to display the differential and relative values, in %.
NOTE: This button is not functional in phase rotation mode.
Successive
presses on
Enters the ΔREL mode, to store, then display the reference
value. The ΔRef symbol is displayed.
- Displays the differential value:
(current value – reference ()
short
long (>2 sec) - Exits from the ΔREL mode
The ΔREL symbol is displayed.
- Displays the relative value in %
(current value – reference (
The ΔREL and % symbols are displayed.
- Displays the reference. The ΔRef symbol is displayed
- Displays the current value. The ΔRef symbol blinks.
Function
NOTE: The “Relative mode ΔREL” function can also be used with the functions of
the MAX/MIN/PEAK mode.
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3 USE
3.1 INSTALLING THE BATTERIES
Insert the batteries supplied with the device as follows:
1. Using a screwdriver, unscrew the battery compartment cover (item 1)
from the back of the housing.
2. Insert the 4x1.5V AA batteries supplied (item 2), observing polarities.
3. Close the battery compartment cover and screw it onto the housing.
2
1
Figure 6 : The Battery Compartment
3.2 TURNING THE CLAMP-ON METER ON
With the rotary switch set in the OFF position, turn the switch to the
desired function. The display lights (all symbols) for a few seconds (see
§1.3), then the screen of the function chosen is displayed.
The clamp-on meter is now ready to make measurements.
3.3 TURNING THE CLAMP-ON METER OFF
The clamp-on meter can be turned off in two ways:
Manually - Turn the switch to the OFF position.
Automatically - After ten minutes with no activity, the instrument will turn
OFF. Thirty (30) seconds before the device is switched off, an audible
signal sounds intermittently. To re-activate the device, press any button
or turn the rotary switch.
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3.4 CONFIGURATION
As a safety measure, and to avoid repeated overloads on the inputs of the
device, configuration operations should only be performed when the device is
disconnected from all dangerous voltages.
3.4.1 Configuring the Maximum Resistance for Continuity
To configure the maximum resistance allowed for a continuity measurement:
1. With the switch in the OFF position, hold the (yellow) button down
while turning the switch to until the "full screen" display ends and a
beep is emitted. The display will indicate the value below which the
buzzer is activated and the symbol is displayed. The value stored by
default is 40. The possible values range between 1 and 999.
2. To change the threshold, press the (yellow) button. The right-hand
digit flashes; each press on the (yellow) button increments it. To
shift to the next digit, apply a long press (>2s) to the (yellow)
button.
When the desired value is displayed, turn the switch to another setting. The
detection threshold chosen is stored and a double beep is emitted.
3.4.2 Auto Power Off
The Auto Power Off feature is enabled by default. To disable it, perform the
following:
1. In the OFF position, hold the button down while turning the switch
to until the "full screen" display ends and a beep is emitted. The
symbol is displayed.
2. When the button is released, the device is in the voltmeter function
in the normal mode.
3. To return to Auto Power Off, turn the clamp-on meter OFF and then
back ON again.
3.4.3 Configuring the Current Threshold for True InRush™
Measurement
To configure the triggering current threshold of the True InRush™ measurement:
1. In the OFF position, hold the button down while turning the switch
to until the "full screen" display ends and a beep is emitted. The
display will indicate the percentage overshoot to apply to the measured
current to determine the measurement triggering threshold.
The value stored by default is 10%, representing 110% of the
established current measured. The possible values are 5%, 10%, 20%,
50%, 70%, 100%, 150%, and 200%.
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2. To change the threshold, press the (yellow) button. The value
flashes; each press on the (yellow) button displays the next value.
To record the chosen threshold, apply a long press (>2s) on the
(yellow) button. A confirmation beep is emitted.
To exit from the configuration mode, turn the switch to another setting. The
chosen threshold is stored and a double beep is emitted.
NOTE: The starting (InRush) current measurement triggering threshold is fixed at
1% of the least sensitive range. This value is 1% of 99.99A or 1A. This threshold
is not adjustable.
3.4.4 Default Configuration
To reset the clamp-on meter to its default parameters (factory configuration):
1. In the OFF position, hold the (yellow) button down while turning the
switch to
The "rSt" symbol is displayed.
2. After 2 s, the clamp-on meter emits a double beep, then all of the digital
symbols of the screen are displayed until the (yellow) button is
released. The default parameters are then restored:
Continuity detection threshold = 40
True InRush™ triggering threshold = 10%
until the "full screen" display ends and a beep is emitted.
,
3.5 VOLTAGE MEASUREMENT (V)
To measure voltage, proceed as follows:
1. Set the switch to .
2. Connect the black lead to the COM terminal and the red lead to the "+"
terminal.
3. Connect the test probes or the alligator clips to the circuit to be
measured. The device selects AC or DC automatically according to
which measured value is larger. The AC or DC symbol displays blinking
in auto detect mode.
To select AC or DC manually, press the (yellow) button to toggle between
them. The symbol corresponding to the choice will then display.
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The measured value is displayed on the screen.
3.6 CONTINUITY TEST
Warning: Before performing the test, make sure that the circuit is off and all
capacitors have been discharged.
1. Set the switch to ; the symbol is displayed.
2. Connect the black lead to the COM terminal and the red lead to the "+"
terminal.
3. Connect the test probes or the alligator clips to the circuit or component
to be measured.
An audible signal is emitted if there is continuity (resistance value is below the
maximum threshold - see § 3.4.1) and the measured value is displayed on the
screen.
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3.6.1 Lead Resistance Compensation
Warning: Before the compensation is executed, the MAX/MIN and HOLD modes
must be disabled.
To perform automatic compensation of the test lead resistance, proceed as
follows:
1. Short-circuit the leads connected to the meter.
2. Hold the button down until the display unit indicates the lowest
value. The device measures the resistance of the leads.
3. Release the button. The correction and the symbol are
displayed. The value displayed is stored.
NOTE: The correction value is stored only if it is 2.
Above 2, the value displayed blinks and is not stored.
3.7 RESISTANCE MEASUREMENT
Warning: Before making a resistance measurement, make sure that the circuit is
off and all capacitors have been discharged.
1. Set the switch to and press the (yellow) button. The symbol
is displayed.
2. Connect the black lead to the COM terminal and the red lead to the "+"
terminal.
3. Connect the test probes or the alligator clips to the circuit or component
to be measured.
The measured value is displayed on the screen.
NOTE: To measure low resistance values, first perform lead resistance
compensation (see § 3.6.1).
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3.8 DIODE TEST
Warning: Before performing the diode test, make sure that the circuit is off and
all capacitors have been discharged.
1. Set the switch to and press the (yellow) button twice. The
symbol is displayed.
2. Connect the black lead to the COM terminal and the red lead to the "+"
terminal.
3. Connect the test probes or the alligator clips to the component to be
tested.
The measured value is displayed on the screen.
4. Reverse the leads on the diode and repeat the test.
3.9 CURRENT MEASUREMENT (A)
The jaws are opened by pressing the trigger on the body of the meter. The arrow
on the jaws of the clamp-on meter (see the diagram below) should point in the
presumed direction of current flow, from the generator to the load. Make sure that
the jaws have closed correctly after clamping around the conductor.
NOTE: The measurement results are optimal when the conductor is centered in
the jaws (aligned with the centering marks).
The device selects AC or DC automatically according to which measured value is
larger. The AC or DC symbol displays blinking in auto detect mode.
3.9.1 AC Measurement
For an AC current measurement, proceed as follows:
1. Set the switch to and select AC by pressing the (yellow
button). The AC symbol is displayed.
2. Clamp the jaws around the conductor to be measured. The device
selects AC or DC automatically.
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The measured value is displayed on the screen.
3.9.2 DC or AC+DC Measurement
Set the switch to and select DC if the display does not indicate "0"; the DC
zero must be corrected first.
Step 1: Correction of DC Zero
Important: The clamp must not be closed on the conductor during the DC zero
correction. Hold the clamp in the same position during the whole procedure so
that the correction value will be exact.
Press the button until the device emits a double beep and displays a value
near "0". The correction value is stored until the clamp is powered down.
NOTE: The correction is effected only if the value displayed is < ±10A, otherwise
the value displayed blinks and is not stored. The clamp must be recalibrated (see
§ 5.3)
Step 2: Make a Measurement
1. The switch is set to . Select DC or AC+DC by pressing the
(yellow) button until the desired choice is reached.
2. Clamp the jaws around the conductor to be measured.
The measured value is displayed on the screen.
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3.10 STARTING CURRENT OR OVERCURRENT (True InRush™)
MEASUREMENT
NOTE: The measurement can be made only in AC or DC mode (AC+DC mode
disabled).
To measure a starting current or overcurrent, proceed as follows:
1. Set the switch to , correct the DC zero (see §3.9.2), then clamp the
jaws around the conductor to be measured.
2. Perform a long press on the button. The InRh symbol is
displayed, along with the triggering threshold. The clamp then awaits
detection of the True InRush™ current. "------" is displayed and the A
symbol flashes.
3. After detection and acquisition for 100 ms, the RMS value of the True
InRush™ current is displayed. Pressing the button will display the
PEAK+/PEAK- values subsequently.
4. A long press on the button or a change of function on the rotary
switch will exit the True InRush™ mode.
NOTE: The triggering threshold in A is 10A if the initial current is zero (starting of
installation). For an established current (overload in an installation) see §3.4.3.
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3.11 POWER MEASUREMENTS W, VA, VAR AND PF
This measurement is possible in single-phase or in balanced 3-phase.
NOTE: If performing DC or AC+DC power measurements, correct the DC zero in
current first (see § 3.9.2)
For the power factor (PF) and the powers VA and var, the measurement is
possible only in AC or AC+DC.
3.11.1 Single-Phase Power Measurement
1. Set the switch to and select VA, var, or PF by pressing the
button until the desired choice is reached.
2. The device automatically displays AC+DC. To select AC, DC, or
AC+DC, press the (yellow button) until the desired choice is
reached.
3. Connect the black lead to the COM terminal and the red lead to the "+"
terminal.
4. Connect the test probes or the alligator clips of the black lead on the
neutral (N), then those of the red lead on the L phase.
5. Clamp around only the corresponding conductor, respecting the
direction.
The measurement is displayed on screen.
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3.11.2 Balanced 3-Phase Power Measurement
If the red lead is
…and the black lead is
…then the clamp is on the
1. Set the switch to and select VA, var, or PF by pressing the
button until the desired choice is reached
2. Press the (yellow) button until the symbol is displayed.
3. The device automatically displays AC+DC. To select AC, DC, or
AC+DC, press the (yellow) button until the desired choice is
reached.
4. Connect the black lead to the COM terminal and the red lead to the "+"
terminal.
5. Connect the leads and the clamp to the circuit as follows:
connected…
To the L1 phase to the L2 phase of the L3 phase
To the L2 phase to the L3 phase of the L1 phase
To the L3 phase to the L1 phase of the L2 phase
connected
conductor
NOTE: The arrow on the jaws of the clamp (see the diagram below) must point in
the presumed direction of flow of the current from the source to the load.
The measurement is displayed on screen.
NOTE: 3-phase power on a balanced 4-wire network can also be measured by
proceeding in the same way, or by proceeding as for the measurement on a
single-phase network, then multiplying the value by three.
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Page 31
PHASE ROTATION MODE
3.12
This mode is used to determine the phase order of a 3-phase network using the
"2-wire" method.
To determine the phase order, proceed as follows:
Step 1: Determining the Reference Period:
1. Set the switch to . The rdy symbol is displayed; the device is
ready for the first phase order determination measurement.
2. Connect the black lead with alligator clip to the COM terminal and the
red lead with the test probe to the "+" terminal.
3. Connect the alligator clip to the presumed L1 phase and apply the red
test probe to the presumed L2 phase.
4. Press the (yellow) button. The ref symbol blinks on the screen.
The instrument is ready to determine the reference period. When the
reference period has been determined, an audible signal sounds and
the ref and symbols are displayed.
NOTE: If the reference period has not been determined, the device emits a beep
and displays the "Err Hz" or "ErrV" message. The symbol flashes, then the
"rdy" message is displayed on the screen. Repeat the procedure from Step 4.
Step 2: Determining the Measurement Period:
1. Within the next 10 seconds, apply the test probe to the presumed L3
phase. The "MEAS" symbol blinks on the display as soon as the L2
phase is disconnected. The device is now in the calculation phase.
NOTE: If the measurement period has not been determined, the device emits a
beep and displays the "Err Hz" or "ErrV" message, then "rdy". Repeat the
procedure from Step 4.
Result: When the phase order has been determined, the device emits a beep
and the indication of order of the phases is displayed on the screen, as follows:
0.1.2.3 when the direction of rotation is direct. The "0" symbol blinks and
turns clockwise;
0.3.2.1 when the direction of rotation is reversed. The "0" symbol blinks
and turns anticlockwise.
NOTE: If the phase order has not been determined, the device emits a beep and
displays the "Err" message. Repeat the procedure from Step 4.
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3.13 FREQUENCY MEASUREMENT (HZ)
The frequency measurement is available in V, W and A for AC and AC+DC
measurements. The measurement is based on a count of zero crossings
(positive-going edges).
3.13.1 Frequency Measurement (V)
To measure the frequency in voltage, proceed as follows:
5. Settheswitchto andpress the button.TheHz symbolis displayed.
6. Select AC or AC+DC by pressing the (yellow) button until the
desired choice is reached.
7. Connect the black lead to the COM terminal and the red lead to the "+"
terminal.
8. Connect the test probes or the alligator clips to the circuit to be
measured.
The measured value is displayed on the screen.
3.13.2 Frequency Measurement (A)
1. Set the switch to and press the button. The Hz symbol is
displayed.
2. Select AC or AC+DC by pressing the (yellow) button until desired
choice is reached.
3. Clamp the jaws around the conductor to be measured.
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The measured value is displayed on the screen.
3.13.3 Frequency Measurement (W)
1. Set the switch to and press the button four times. The Hz
symbol is displayed;
2. Select AC or AC+DC by pressing the (yellow) button until the
desired choice is reached.
3. Connect the black lead to the COM terminal and the red lead to the "+"
terminal.
4. Place the test probes or the alligator clips of the black lead on the
neutral (N) and that of the red lead on the L phase.
5. Clamp the jaws around the conductor to be measured.
The measurement is displayed on screen.
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3.14 MEASUREMENT OF THE LEVEL OF HARMONICS (THD) AND
OF THE FREQUENCY OF THE FUNDAMENTAL (NETWORK)
The device measures the total harmonic distortion with respect to the
fundamental (THDf) and the total harmonic distortion with respect to the true
RMS value of the signal (THDr) in voltage and in current. Similarly, it determines
the frequency of the fundamental by digital filtering and FFT, for network
frequencies of 50, 60, 400, and 800Hz.
3.14.1 Measurement of the THD and the Frequency of the
Fundamental (V)
1. Set the switch to and press and hold the button for (>2s). The
THDfsymbol is displayed. To select THDr, press the button again.
The THDrsymbol is displayed. To select the frequency of the
fundamental, press the button again. The Hz symbol is displayed.
2. Connect the black lead to the COM terminal and the red lead to the “+”
terminal.
3. Place the test probes or the alligator clips on the terminals of the circuit
to be measured.
The measurement is displayed on screen.
3.14.2 Measurement of the THD and the Frequency of the
Fundamental (A)
1. Set the switch to and press and hold the button for (>2s). The
THDfsymbol is displayed. To select THDr, press the button. The
THDrsymbol is displayed. To select the frequency of the fundamental,
press the key again. The Hz symbol is displayed.
2. Clamp the jaws around the conductor to be measured.
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The measurement is displayed on screen.
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Page 36
4 SPECIFICATIONS
4.1 REFERENCE CONDITIONS
Quantities of Influence Reference Conditions
Temperature: 23°C ±2°C
Relative humidity: 45% to 75%
Supply voltage: 6.0V ±0.5V
Frequency range of the applied signal: 45 to 65Hz
Sine wave: pure
Peak factor of the applied alternating signal: √2
Position of the conductor in the clamp: centered
Adjacent conductors: none
Alternating magnetic field: none
Electric field: none
4.2 SPECIFICATIONS UNDER THE REFERENCE CONDITIONS
Accuracy is expressed in ± (x% of the reading (R) + y counts (ct)).
4.2.1 DC Voltage Measurement
Measurement Range 0.00 to 99.99V 100.0 to 999.9V 1000V (1)
Specified Measurement
Range
Accuracy
Resolution 0.01V 0.1V 1V
Input Impedance
Note (1) The display indicates "+OL" above + 2000V and "-OL"
below – 2000V, in REL mode. The "-" and "+" signs are managed.
Above 1000V, a repetitive beep indicates that the voltage being
measured is greater than the safety voltage for which the device is
guaranteed. The display indicates "OL".
0 to 100% of the measurement range
0.00 to 9.99V
± (1% R +10cts)
10.00 to 99.99V
± (1% R +3cts)
10M
36
± (1% R +3cts)
Page 37
4.2.2 AC Voltage Measurement
Measurement
Range
Specified
Measurement
Range (2)
Accuracy
Resolution 0.01V 0.1V 1V
Input Impedance
Note (1) The display indicates "OL" above 1000V (1400V in PEAK mode).
Above 1000V (RMS), a repetitive beep indicates that the voltage
being measured is greater than the safety voltage for which the
device is guaranteed. The display indicates "OL".
Note (2) Any value between zero and the min. threshold of the measurement
range (0.15V) is forced to show "----" on the display.
Specific Specifications in MAX/MIN mode (from 10Hz to 1kHz, and from
0.30V in AC):
0.15 to
99.99V
0 to 100% of the measurement range
0.15 to 9.99V
± (1% R +10cts)
10.00 to 99.99V
± (1% R +3cts)
100.0 to
999.9V
10M
1000V RMS
1400V peak (1)
± (1% R +3cts)
Accuracy: add 1% R to the values of the table above.
Capture of the extreme: approximately 100ms.
4.2.3 AC+DC Voltage Measurement
Measurement Range (2)
Specified Measurement
Range
Accuracy
Resolution 0.01V 0.1V 1V
Input impedance
Note (1) The display indicates "OL" above 1000V (1400V in PEAK mode).
Above 1000V (DC or RMS), a repetitive beep indicates that the
voltage being measured is greater than the safety voltage for which
the device is guaranteed.
Note (2) Any value between zero and the min. threshold of the measurement
range (0.15V) is forced to "----" on the display.
0.15 to
99.99V
0 to 100% of the measurement range
0.15 to 9.99V
± (1% R +10cts)
10 to 99.99V
± (1% R +3cts)
37
100.0 to
999.9V
10M
1000V RMS (1)
1400V peak
± (1% R +3cts)
Page 38
Specific Specifications in MAX/MIN mode in Voltage (from 10Hz to 1kHz
and from 0.30V):
Accuracy: add 1% R to the values of the previous table.
Capture of the extreme: approximately 100ms.
Specific Specifications in PEAK mode in voltage (from 10Hz to 1kHz):
Accuracy: add 1.5% R to the values in the previous table.
PEAK capture time: 1ms min. to 1.5ms max.
4.2.4 DC Current Measurement
Measurement
Range (2)
Specified
Measurement Range
Accuracy (2)
(zerocorrected)
Resolution 0.01A 0.1A 1A
Note (1) The display indicates “+OL” above 3000A and “-OL” below -3000A
in REL mode. The "-" and "+" signs are displayed.
Note (2) The residual current at zero depends on the remanence. It can be
corrected by the “DC zero” function of the HOLD button.
0.00 to
99.99A
0 to 100% of the measurement range
± (1% R +10cts) ± (1% R +3cts)
100.0 to
999.9A
1000 to
1500A (1)
1500
± (1.5% R +3cts)
4.2.5 AC Current Measurement
Measurement
Range (2)
Specified
Measurement
Range
Accuracy ± (1% R +10cts) ± (1% R +3cts) ± (1.5% R +3cts)
Resolution 0.01A 0.1A 1A
Note (1) The display indicates “OL” above 1500A in PEAK mode.
Note (2) In AC, any value between zero and the min. threshold of the
measurement range (0.15A) is forced to show “----“ on the display.
Residual current at zero <150mA.
0.15 to
99.99A
0 to 100% of the measurement range
100.0 to
999.9A
1000A
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4.2.6 AC+DC Intensity Measurement
Measurement
Range (2)
Specified
Measurement
Range
Accuracy (2)
(zero corrected)
Resolution 0.01A 0.1A 1A
Note (1) In DC, the display indicates "+OL" above +3000A and "+-OL" above -
3000A in REL mode. The "-" and "+" signs are managed (polarity).
In AC and AC+DC, the display indicates "+OL" above 1500A in PEAK
mode. The "-" and "+" signs are not managed.
Note (2) In AC, any value between zero and the min. threshold of the
measurement range (0.15A) is forced to show "----" on the display.
- Residual current at zero:
- In DC: depends on the remanence. This can be corrected by the
"DC zero" function of the HOLD button
- In AC: <150mA
Specific Specifications in MAX/MIN mode (from 10Hz to 1kHz, and from
0.30A in AC):
0.15 to
99.99A
0 to 100% of the measurement range
± (1% R+10cts) ± (1% R +3cts)
100.0 to
999.9A
AC: 1000
DC or PEAK:
1000 to 1500A (1)
1500A
± (1.5% R +3cts)
Accuracy: add ± (1.5% L+0.5A) to the values in the tables above.
PEAK capture time: 1ms min. to 1.5ms max.
4.2.7 True Inrush™ Measurement
Measurement Range 10 to 1000AAC 10 to 1500ADC
Specified Measurement Range 0 to 100% of the measurement range
Accuracy ± (5% R +5cts)
Resolution 1A
Specific Specifications in PEAK mode in True InRush™ (from 10Hz to
1kHz):
Accuracy: add ± (1.5% R +0.5A) to the values in the table above.
PEAK capture time: 1ms min. to 1.5ms max.
4.2.8 Continuity Measurement
Measurement Range
Open-circuit Voltage
Measurement Current 550µA
Accuracy ± (1% R +3cts)
Buzzer Triggering Threshold
Adjustable from 1 to 999 (40 is the default)
39
0.0 to 999.9
8V
Page 40
4.2.9 Resistance Measurement
Measurement Range (1)
Specified Measurement
Range
Accuracy ± (1% R +3cts)
Resolution
Open-circuit Voltage
Measurement Current 550µA 100µA 10µA
Note (1) Above the maximum display value, the display unit indicates "OL".
The "-" and "+" signs are not managed.
Specific Specifications in MAX/MIN mode:
0.0 to
999.9
1 to 100% of the
measurement range
0.1 1 10
1000 to
9999
0 to 100% of the
measurement range
8V
10.00 to
99.99k
Accuracy: add 1% R to the values of the table above.
Capture of the extreme: approximately 100ms.
4.2.10 Diode test
Measurement Range 0.000 to 3.199VDC
Specified Measurement Range 1 to 100% of the measurement range
Accuracy ± (1% R + 3cts)
Resolution 0.001V
Measurement Current 0.55mA
Indication: junction reversed or
open-circuit
"OL" is displayed when the measured
voltage >3.199V
Note: The "-" sign is disabled for the diode test function.
4.2.11 Active DC Power Measurements
Measurement
Range (2)
Specified
Measurement
Range
Accuracy (3)
Resolution 1W 10W 100W 1000W
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
measurement range
0 to
9.999W
1 to 100% of the
1000A
± (2% R +10cts)
1000 to 1500A
± (2.5% R +10cts)
40
TestEquipmentDepot.com
10.00 to
99.99kW
100.0 to
999.9kW
0 to 100% of the
measurement range
1000A
± (2% R +3cts)
1000 to 1500A
± (2.5% R +3cts)
1500kW (1)
1000 to
Page 41
Note (1) - Display of O.L or ± O.L
- Above 1500kW in single-phase (1000V x 1500A).
- Above ±3000kW in REL mode.
Note (2) Any applied voltage greater than 1000V causes the emission of an
intermittent alarm beep to report a dangerous overload.
Note (3) The measurement result may be affected by an instability linked to the
current measurement (approximately 0.1A).
Example: For a power measurement made at 10A, the instability of the
measurement will be 0.1A/10A or 1%.
4.2.12 Active AC Power Measurements
Measurement
Range (2) (4)
Specified
Measurement
Range
Accuracy (3)
Resolution 1W 10W 100W 1000W
Note (1) - Display of OL above 1000kW in single-phase (1000V x 1000A).
Notes (2) and (3) of the previous § apply.
Note (4) Any power measured less than 5W is regarded as zero and causes the
display of dashes "----"
If the voltage is less than 0.15V or if the current is less than 0.15A, the
powermeasured is regarded as zeroandcausesthedisplay of "----"
Note 5 The active powers are positive for power consumed and negative for
power generated.
Note 6 The signs of the active and reactive powers and power factor are
defined by the four-quadrant rule below:
The diagram below sums up the signs of the power as a function of the
phase angle between V and I:
Quadrant 1: Active power P sign + (power consumed)
Quadrant 2: Active power P sign - (power generated)
Quadrant 3: Active power P sign - (power generated)
Quadrant 4: Active power P sign + (power consumed)
5 to
9999W
1 to 100% of the
measurement
range
1000A
± (2% R +10cts)
10.00 to
99.99kW
of the measurement range
100.0 to
999.9kW
0 to 100%
1000A
± (2% R +3cts)
1000kW (1)
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Generated
Consumed
4.2.13 Active AC+DC Power Measurements
Measurement
Range (2) (4)
Specified
Measurement
Range
Accuracy (3)
measurement range
5 to
9999W
1 to 100% of the
1000A
± (2% R +10cts)
1000 to 1500A
± (2.5% R +10cts)
10.00 to
99.99kW
100.0 to
999.9kW
0 to 100%
of the measurement range
1000A
± (2% R +3cts)
1000A to 1500A
± (2.5% R +3cts)
1000 to
1500kW (1)
Resolution 1W 10W 100W 1000W
Note (1) - Display of OL above 1500kW in single-phase (1000V x 1500A)
Notes (2), (3), (4), 5 and 6 of the previous § apply.
4.2.14 Measurement of Apparent AC Power
Measurement
Range (2) (4)
Specified
Measurement
Range
Accuracy (3)
Resolution 1VA 10VA 100VA 1000VA
Note (1) - Display of OL above 1000kVA in single-phase (1000V x 1000A)
5 to
9999VA
1 to 100% of the
measurement
range
1000A
± (2% R +10cts)
10.00 to
99.99kVA
100.0 to
999.9kVA
0 to 100%
of the measurement range
1000A
± (2% R +3cts)
1000kVA (1)
Notes (2), (3) and (4) of the previous § apply.
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4.2.15 Measurement of Apparent AC+DC Power
Measurement
Range (2) (4)
Specified
Measurement
Range
Accuracy (3) 1000A
Resolution 1VA 10VA 100VA 1000VA
Note (1) - Display of OL above 1500kVA in single-phase (1000V x 1500A)
Notes (2), (3) and (4) of the previous § apply
5 to
9999VA
1 to 100% of the
measurement
range
± (2% R +10cts)
1000 to 1500A
± (2.5% R +10cts)
10.00 to
99.99kVA
of the measurement range
100.0 to
999.9kVA
0 to 100%
1000A
± (2% R +3cts)
1000 to 1500A
± (2.5% R +3cts)
1000 to
1500kVA (1)
4.2.16 Measurement of Reactive AC Power
Measurement
Range (2) (4)
Specified
Measurement
Range
Accuracy (3)
(7)
Resolution 1 var 10 var 100 var 1 kvar
Note (1) - Display of OL above 1000 kvar in single-phase (1000V x 1000A)
measurement range
5 to
9999 var
1 to 100% of the
1000A
± (2% R +10cts)
10.00 to
99.99 kvar
of the measurement range
100.0 to
999.9 kvar
0 to 100%
1000A
± (2% R +3cts)
1000 kvar
(1)
Notes (2), (3) and (4) of the previous § apply
Note 5 In single-phase, the sign of the reactive power is determined by the
phase lead or lag between the V and I signs, while in balanced threephase, it is determined by the calculation on the samples.
Note 6 - Signs of reactive powers according to the four-quadrant rule (§4.2.12):
Quadrant 1: Reactive power Q sign +
Quadrant 2: Reactive power Q sign +
Quadrant 3: Reactive power Q sign Quadrant 4: Reactive power Q sign –
Note (7) With deformed signals (THD and harmonics), uncertainties are
guaranteed since Φ > 30°:
Add +1% for 10%<THD<20%
Add +3% for 20%<THD<30%
Add +5% for 30%<THD<40%
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4.2.17 Measurement of Reactive AC+DC Power
Measurement
Range (2) (4)
Specified
Measurement
Range
Accuracy (3)
(7)
Resolution 1 var 10 var 100 var 1 kvar
Note (1) - Display of OL above 1500 kvar in single-phase (1000V x 1500A)
Notes (2), (3) , (4), 5, 6 and (7) of the previous § apply
Specific characteristics in MAX/MIN mode in power (from 10Hz to 1kHz):
5 to
9999 var
1 to 100% of the
measurement
range
1000A
± (2% R +10cts)
1000 to 1500A
± (2.5% R +10cts)
10.00 to
99.99 kvar
0 to 100% of the measurement range
100.0 to
999.9 kvar
1000A
± (2% R +3cts)
1000 to 1500A
± (2.5% R +3cts)
1000 to
1500 kvar
(1)
Accuracy: add 1% R to the values in the table above.
Capture time: approximately 100ms
4.2.18 Calculation of the Power Factor
Measurement Range (1) -1.00 to +1.00 (2)
Specified Measurement
Range
Accuracy ± (6% R +3cts) ± (3% R +3cts)
Resolution 0.01
Note (1) If one of the terms in the calculation of the power factor is displayed
as "OL", or forced to zero, the display of the power factor is an
indeterminate value "----".
0 to 50% of the
measurement range
50 to 100% of the
measurement range
Note (2) The power factor is given a sign that indicates whether the load is
inductive (sign "+") or capacitive (sign "-"). This sign is not determined
by that of the active power, but by the phase lead or lag between the
U and I signals.
Note 8 - Sign of the power factor according to the four-quadrant rule (§4.2.12):
Quadrant 1: Power factor PF sign + (inductive system)
Cos Φ sign +
Quadrant 2: Power factor PF sign - (inductive system)
Cos Φ sign -
Quadrant 3: Power factor PF sign + (inductive system)
Cos Φ sign -
Quadrant 4: Power factor PF sign - (inductive system)
Cos phi sign +
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Specific characteristics in MAX/MIN mode (from 10Hz to 1kHz):
Accuracy: add 1% R to the values in the table above.
Capture time: approximately 100ms.
4.2.19 Frequency Measurements
4.2.19.1 Voltage
Measurement
Range (1)
Specified
Measurement
Range
Accuracy ± (0.4% R +1ct)
Resolution 0.1Hz 1Hz 10Hz
5.0 to
999.9Hz
1 to 100% of the
measurement range
1000 to
9999Hz
0 to 100% of the
measurement range
10.00 to
19.99kHz
4.2.19.2 Current
Measurement Range (1) 5.0 to 1999Hz
Specified Measurement Range 1 to 100% of the measurement range
Accuracy ± (0.4% R +1ct)
Resolution 0.1Hz
Note (1) In MAX/MIN mode, the operating range is limited to 1kHz.
If the level of the signal is too low (<10% of the range, or V<10V or
I<10A) or if the frequency is less than 5Hz, the device cannot
determine the frequency and displays "----".
Specific Specifications in MAX/MIN mode (from 10Hz to 1kHz):
Accuracy: add 1% R to the values of the table above.
Capture of the extreme: approximately 100ms.
4.2.20 Specifications in THDr
Measurement Range 0.0 to 100%
Specified Measurement
Range
Accuracy ± (5% R ±2cts) in voltage
Resolution 0.1%
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
of the measurement range
45
0 to 100%
± (5% R ±5cts) in current
Page 46
4.2.21 Specifications in THDf
Measurement Range 0.0 to 1000%
Specified Measurement
Range
Accuracy ± (5% R ±2cts) in voltage
Resolution 0.1%
Note : The display is "----" if the input signal is too low (V<8V or I<9A) or if
the frequency is less than 5Hz.
Specific characteristics in MAX/MIN mode in THD (from 10Hz to 1kHz):
of the measurement range
0 to 100%
± (5% R ±5cts) in current
Accuracy: add 1% R to the values in the tables above.
Capture of the extreme: approximately 100ms
4.2.22 Indication of Phase Order
Frequency range 47 to 400Hz
Acceptable voltage range 50 to 1000V
Acquisition duration period
Validity duration period
Acquisition duration measurement period
and phase order display
Acceptable phase unbalance
Acceptable amplitude unbalance 20%
Acceptable level of harmonics in voltage 10%
500ms
approximately 10s at 50Hz
approximately 2s to 400Hz
500ms
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4.3 ENVIRONMENTAL CONDITIONS
Conditions Operating Storage
Temperature -4° to +131°F
(-20° to +55°C)
Relative humidity (RH): ≤90% up to 131°F (55°C) ≤90% up to 158°F (70°C)
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-40° to +158°F
(-40° to +70°C)
Page 47
4.4 MECHANICAL SPECIFICATIONS
Housing:
Jaws:
Screen:
Dimension: 10.7 x 3.6 x 1.6" (272 x 92 x 41mm)
Weight: 1.32 lbs (600g) with the batteries
Rigid polycarbonate shell with over-molded elastomer
covering; UL94 V1
Polycarbonate
Opening: 1.9" (48mm)
Clamping diameter: 1.9" (48mm)
LCD display unit
Blue backlighting
Dimension: 1.6 x 1.9" (41 x 48mm)
4.5 POWER SUPPLY
Batteries: 4x1.5V AA LR6
Battery life: >350 hours (without backlighting)
Auto Power Off After 10 minutes with no switch and/or button
activity
4.6 COMPLIANCE WITH INTERNATIONAL STANDARDS
Compliant with standards IEC-61010-1,
Electric safety:
IEC-61010-2-30, and IEC-61010-2-32:
1000V CAT IV.
Electromagnetic
compatibility:
Mechanical
strength:
Level of protection
of the housing:
Compliant with standard EN-61326-1
Classification: residential environment
Free fall: 2m (in accordance with standard IEC-68-2-32)
Housing: IP54 (per standard IEC-60529)
Jaws: IP40
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Page 48
4.7 ENVIRONMENTAL VARIATIONS
Influence
Condition of
Influence
Temperature
Humidity 10 to 90% RH
Frequency
Position of
the conductor
in the
jaws
(f400Hz)
Adjacent
conductor
carrying a
current of
150ADC or
RMS
Conductor
enclosed by
the clamp
Application of
a voltage on
the clamp
Peak factor
Range of
Influence
-4° to +131°F
(-20° to +55°C)
10Hz to 1kHz
1kHz to 3kHz
10Hz to 400Hz
400Hz to 2kHz
Any position
on the internal
perimeter of
the jaws
Conductor
touching the
external
perimeter of
the jaws
0 to 500ARMS V
0 to 1000VDC
or RMS
1.4 to 3.5,
limited
to 1500A peak
1400V peak
Measurement
Influenced
VAC
VDC
A
T°C
Hz
V
A
V
A
A 2% R 4% R + 1ct
A 40 dB 45 dB
A
A (AC)
V (AC)
Typical MAX
-
0.1% R/10°C
1% R/10°C
(0.2% R +1°C)/10°C
0.1% R/10°C + 2ct
0.1% R 0.1% R + 1ct
1% R
8% R
1% R
4% R
1ct
1ct
1% R
1% R
(0.3% R +2°C)/10°C
0.1% R/10°C
0.5% R/10°C + 2ct
1.5% R/10°C + 2ct
0.1% R/10°C + 3ct
1% R + 1ct
9% R + 1ct
1% R + 1ct
5% R + 1ct
1ct
3% R + 1ct
3% R + 1ct
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Page 49
5 MAINTENANCE
5.1 WARNING
Remove the test leads on any input before opening the case.
Do not operate the clamp-on meter without a battery case cover.
To avoid electrical shock, do not attempt to perform any servicing
unless you are qualified to do so.
To avoid electrical shock and/or damage to the instrument, do not get
water or other foreign agents into the probe.
5.2 CLEANING
Disconnect everything connected to the device and set the switch to
OFF.
Use a soft cloth moistened with soapy water. Rinse with a damp cloth
and dry quickly using a dry cloth or forced air.
Dry completely before putting back into use.
5.3 REPLACEMENT OF THE BATTERIES
The symbol indicates that the batteries are low. When this symbol appears
on the display unit, the batteries must be replaced. The measurements and
specifications are no longer guaranteed.
To replace the batteries, proceed as follows:
1. Disconnect the measurement leads from the input terminals.
2. Set the switch to OFF.
3. Using a screwdriver, unscrew the battery compartment cover from the
back of the housing (see §3.1).
4. Remove the used batteries and replace them with 4x1.5V AA batteries,
observing the polarities.
5. Close the battery compartment cover and screw it onto the housing.
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Page 50
6 REPAIR AND CALIBRATION
To ensure that your instrument meets factory specifications, we recommend
that it be submitted 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 certificate plus recorded calibration data).
Costs for repair, standard calibration, and calibration traceable to N.I.S.T. are
available.
NOTE: All customers must obtain a CSA# before returning any
instrument.
7 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 hotline:
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Page 51
8 LIMITED WARRANTY
The Model 405 is warranted to the owner for a period of three years from
the date of original purchase against defects in manufacture. This limited
warranty is given by AEMC®Instruments, not by the distributor from
whom it was purchased. This warranty is void if the unit has been
tampered with, abused or if the defect is related to service not performed
by AEMC®Instruments.
Full warranty coverage and product registration is available on our
website at www.aemc.com/warranty.html.
Please print the online Warranty Coverage Information for your
records.
If a malfunction occurs within the three-year period, you may return the
instrument to us for repair, provided we have your warranty registration
information on file or a proof of purchase. AEMC®Instruments will, at its
option, repair or replace the faulty material.
REGISTER ONLINE AT: www.aemc.com
9 WARRANTY REPAIRS
What you must do to return an Instrument for Warranty Repair:
First, request a Customer Service Authorization Number (CSA#) by
phone or by fax from our Service Department (see address below), then
return the instrument along with the signed CSA Form. Please write the
CSA# on the outside of the shipping container. Return the instrument,
postage or shipment pre-paid to:
® ®
Caution: To protect yourself against in-transit loss, we recommend you
insure your returned material.
NOTE: All customers must obtain a CSA# before returning any
instrument.
51
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
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