Aemc instruments 401 User Manual
User Manual
ENGLISH
CLAMP-ON METER
401
2
CONTENTS
RECEIVING YOUR SHIPMENT ........................................................................... 7
ORDERING INFORMATION ................................................................................ 7
1 PRESENTATION .......................................................................................... 8
1.1 THE ROTARY SWITCH ................................................................................. 9
1.2 THE FUNCTION BUTTONS ........................................................................ 10
1.3 THE DISPLAY .............................................................................................. 11
1.3.1 Display Symbols ........................................................................... 11
1.3.2 Measurement Capacity Exceeded (OL) ........................................ 12
1.4 THE TERMINALS ........................................................................................ 12
2 THE BUTTONS ........................................................................................... 13
2.1
2.2 (YELLOW) BUTTON (SECOND FUNCTION) ............................................ 14
2.3 BUTTON ............................................................................................. 14
2.4 BUTTON ........................................................................................... 15
2.4.1 Normal Mode ................................................................................ 15
2.4.2 The MAX/MIN Mode + Activation of the HOL D Mode ................... 16
2.4.3 Access to the True Inrush® Mode ( set to ) .................. 16
2.5
2.5.1 Normal Mode ................................................................................ 17
2.5.2 The Hz Function + Activation of the HOLD Mode ......................... 17
3 USE ............................................................................................................. 18
3.1 INSTALLING THE BATTERIES ................................................................... 18
3.2 TURNING THE CLAMP-ON METER ON .................................................... 18
3.3 TURNING THE CLAMP-ON METER OFF .................................................. 18
3.4 CONFIGURATION ....................................................................................... 19
3.4.1 Configuring the Maximum Resistance for Continuity .................... 19
3.4.2 Auto Power OFF ........................................................................... 19
3.4.3 Configuring the Threshold for True InRush® Measurement .......... 19
3.4.4 Changing the Default Temperature U nit ....................................... 20
3.4.5 Default Configuration .................................................................... 21
3.5 VOLTAGE MEASUREMENT (V) ................................................................. 21
3.6 CONTINUITY TEST ............................................................................... 22
3.6.1 Lead Resistance Compensation ................................................... 22
3.7 RESISTANCE MEASUREMENT Ω ............................................................. 23
3.8 DIODE TEST ......................................................................................... 23
3.9 CURRENT MEASUREMENT (A) ................................................................ 24
3.9.1 AC Measurement .......................................................................... 24
3.10 STARTING CURRENT OR OVERCURRENT (True InRush®)
MEASUREMENT .................................................................................................... 25
3.11 FREQUENCY MEASUREMENT (HZ) ......................................................... 25
BUTTON ............................................................................................... 13
BUTTON ............................................................................................. 17
3
Frequency Measurement (V) ........................................................ 25
3.11.1
3.11.2 Frequency Measurement ( A ) ........................................................ 26
3.12 TEMPERATURE MEASUREMENT ............................................................ 27
3.12.1 Measurement without Exter nal Sensor ......................................... 27
3.12.2 Measurement with External Sensor .............................................. 27
4 SPECIFICATIONS ...................................................................................... 28
4.1 REFERENCE CONDITIONS ....................................................................... 28
4.2 SPECIFICATIONS UNDER THE REFERENCE CONDITIONS ................. 28
4.2.1 DC Voltage Measurement ............................................................. 28
4.2.2 AC Voltage Measurement ............................................................. 29
4.2.3 AC Current Measurement ............................................................. 29
4.2.4 True Inrush® Measurement ........................................................... 30
4.2.5 Continuity Measurement ............................................................... 30
4.2.6 Resistance Measurement ............................................................. 30
4.2.7 Diode test ...................................................................................... 31
4.2.8 Frequency Measurements ............................................................ 31
4.2.9 Temperature Measurement ........................................................... 32
4.3 ENVIRONMENTAL CONDITIONS .............................................................. 32
4.4 MECHANICAL SPECIFICATIONS .............................................................. 33
4.5 POWER SUPPLY ........................................................................................ 33
4.6 COMPLIANCE WITH INTERNATIONAL STANDARDS ............................. 33
4.7 ENVIRONMENTAL VARIATIONS ............................................................... 34
5 MAINTENANCE .......................................................................................... 35
5.1 WARNING .................................................................................................... 35
5.2 CLEANING ................................................................................................... 35
5.3 REPLACEMENT OF THE BATTERIES ...................................................... 35
6 REP AIR AND CAL IBRATION .................................................................... 36
7 TECHNICAL AND SALES ASSISTANCE .................................................. 36
8 LIMITED WARRANTY ................................................................................ 37
9 WARRANTY REPAIRS .............................................................................. 37
4
Indicates a WARNING and that the operator
must refer to the user manual for instructions before operating the instrument
the parts marked with this symbol may
Refers to a type A current sensor. This symbol signifies that application
In the European Union, this product is subject to a separate collection system
for recycling electrical and electronic components In accordance wit h directive
Thank you for purchasing a Model 401 Clamp-on Meter.
For best results from your instrument and for your safety, read the enclosed
operating instructions carefully an d 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!
in all cases where this symbol is marked.
Risk of electric shock. The voltage at
be dangerous.
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
WEEE 2002/96/EC
AC – Alternating current
AC and DC – Alternating and direct current
Ground/Earth
5
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 protecti on 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, inc omplete, 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 partiall y) 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 onl y use factory replacement parts. Repairs and
adjustments must be done by approved qualified personnel.
Replace the batteries as soon as the symbol app ears 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 c lips, 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.
6
MEASUREMENT CATEGORIES
Definitions of the measurement cat egories :
CAT II: Circuits directly connected to the low-voltage installation.
Example: power supply to household electrical appliances and portabl e 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 s upplying the low-voltage installation of the building.
Example: power lines, meters, and protection devices.
RECEIVING YOUR SHIPMENT
Upon receiving your shipm ent, make sure that the contents are consistent wi th the
packing list. Notify your d istributor of any missing it ems. If the equipm ent appears
to be damaged, file a cla im immediat ely with t he carrier a nd notif y your distrib utor
at once, giving a detailed descriptio n of any damage. Save the dama ged packing
container to substantiate your claim.
ORDERING INFORMATION
Clamp-on Meter Model 401 .......................................................... Cat. #2139.20
Includes set of 2 color-coded silicone insulated te st leads, test probes and alligator clips,
K-thermocouple with 4mm integrated adapter, soft carrying case, 4x1.5V AA batteries and
user manual.
Replacement Parts:
K-thermocouple with 4mm Integrated Adapter ................................................. Cat. #2139.71
Soft Carrying Case ........................................................................................... Cat. #2139.72
Set of 2 Color-coded Silicone Test Leads, Test Probes & Alligator Clips ........ Cat. #2152.05
7
1
3
2
7
ring marks
1 PRESENTATION
The Clamp-on Meter Model 401 is a professional electrical measuring i nstrument
that combines the following funct i ons :
Current measurement
Measurement of True InRush
Voltage measurement
Frequency measurement
Continuity test with buzzer
Resistance measurement
Diode test
Temperature measurement
®
current / overcurrent
Item
1
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 -
Designation See §
Jaws with cente
(see connection principles)
3.5 to
3.12
6
Figure 1: Clamp-on Meter Model 401
8
1
2 3 4
5
1.1 THE ROTARY SWITCH
The rotary switch has five positions. T o access the , , , , functions,
set the switch to the desired function. The functions are described in the table
below.
Figure 2: The Function Rotary Switch
Item Function See §
1 OFF mode – Turns the clamp-on meter off 3.3
2 AC, DC voltage measurement (V) 3.5
3 Continuity test
Resistance measurement Ω
Diode test
4 AC current measurement (A) 3.9
5 Temperature measurement (°C/°F) 3.12
3.6
3.7
3.8
9
1.2 THE FUNCTION BUTTONS
1 2 3
4 5
Figure 3: The Function Buttons
Item Function See §
1 Holds the last value on the display
Lead resistance compensation in the continuity and
ohmmeter functions
2 Selects the type of measurement and configuration
functions (AC, DC)
3 Enables/disables display backlighting 2.3
4 Enables/disables the MAX/MIN mode
Enables/disables the True InRush
5 Performs Frequency measurements (Hz) 2.5
®
mode
2.1
3.6.1
2.2
2.4
10
1
4
6
5
1.3 THE DISPLAY
2
3
7
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 modes 2.4
4 Type of measurement (AC or DC) 2.2
5 Selected resistance measurement display 1.1
6 Low battery indication 5.3
7 Temperature unit display 3.4.4
1.3.1 Display Symbols
Symbol Designation
AC Alternating current or voltage
DC Direct current or voltage
Max Maximum DC or RMS value
Min Minimum DC or RMS value
V Volt
Hz Hertz
A Ampere
Storage of the values and display hold
11
Ω
°C/°F Temperature unit Celsius or Fahrenheit
Ohm
m Milli- prefix
k Kilo- prefix
Lead resistance compensation
Continuity test
Diode test
Auto Power Off disabled
Low battery indicator
1.3.2 Measurement Capacity Exceeded (OL)
The OL (Over Load) symbol is displayed when the display capacity is exceeded.
1.4 THE TERMINALS
The terminals are used as follows:
1 2
Figure 5: The Terminals
Item Function
1
COM (Black) Input Terminal Jack
2 + Positive (Red) Input Terminal Jack
12
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