AEMC 6292 User manual

nMICRO-OHMMETER 6292
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 N.I.S.T. 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 #: 2129.83
Model #: 6292
Please fill in the appropriate date as indicated:
Date Received: _________________________________
Date Calibration Due: _______________________
Chauvin Arnoux®, Inc.
d.b.a AEMC®Instruments
www.aemc.com

Micro-ohmmeter Model 6292 1
Thank you for purchasing the AEMC Micro-Ohmmeter Model 6292.
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 qualied and trained users.
WARNING, risk of DANGER! The operator must refer to these instructions whenever
this danger symbol appears.
CAUTION! Risk of electric shock. The voltage at the parts marked with this symbol
may be dangerous.
CAUTION! HOT SURFACE! The metallic parts close to this symbol may cause burn-
related injuries.
Application or withdrawal authorized on conductors carrying dangerous voltages.
Type A current sensor as per IEC 61010-2-032.
Must not be applied to or removed from conductors at dangerous voltages. Type B
current sensor as per IEC 61010-2-032.
Equipment is protected by double insulation.
Battery
Important instructions to read and to fully understand.
Useful information or tip to read.
The CE marking guarantees conformity with European directives and with regula-
tions covering EMC.
The trash can with a line through it means that in the European Union, the product
must undergo selective disposal for the recycling of electric and electronic material,
in compliance with Directive WEEE 2002/96/EC.
Denition of Measurement Categories (CAT)
CAT IV Measurement category IV corresponds to measurements taken at the
source of low-voltage installations.
Example: power feeders, counters and protection devices.
CAT III Measurement category III corresponds to measurements on building
installations.
Example: distribution panel, circuit-breakers, machines or xed
industrial devices.
CAT II Measurement category II corresponds to measurements taken on
circuits directly connected to low-voltage installations.
Example: power supply to domestic electrical appliances and portable
tools.

2Micro-ohmmeter Model 6292
PRECAUTIONS FOR USE
The protection obtained by the instrument can be compromised if it is used in a
way that is not recommended by the manufacturer.
■Do not attempt to perform any tests with this instrument until you have read
the user manual.
■Tests are to be carried out on de-energized circuits only! Never connect the
unit to a live circuit.
■The micro-ohmmeter must be connected to the earth/ground point, through
the ground terminal or the power cord.
■Be sure the power cord is accessible at all times, in case the instrument
needs to be quickly unplugged for any reason. Always disconnect the power
cord before performing any repair on the instrument.
■Do not obstruct either the intake vents or the fan, to avoid overheating.
■During a circuit breaker measurement its contacts must be closed and
connected to an earth/ground point. The end connected to an earth/ground
point must be connected to the “C-” terminal.
■Ensure the terminals are free of any voltage in relation to earth/ground point
and between each other. Take into account that in a substation you will nd, in
disconnected points, high potential levels in relation to the earth/ground point.
Those potentials are caused by presence of electromagnetic elds and can
be minimized following the indications in the paragraph before.
■Make sure that the current connections are well connected, as well as the
C clamp, to avoid undesirable heating.
■Be careful when manipulating the current terminals in the instrument.
High temperatures may occur in the current connections.
■Never connect or disconnect the cables during a measurement. If a
modication must be made, press the STOP button rst.
■ The micro-ohmmeter should never be used in an explosive environment (this
includes poorly ventilated battery rooms and enclosures).
■The instrument, test leads and measuring wires must be free of defects and
should be changed if there is any evidence of deterioration (insulation split,
burnt, etc.).
■ Never exceed the safety values indicated in the specications.

Micro-ohmmeter Model 6292 3
Table of Contents
1. INTRODUCTION .............................................................................................5
1.1 Receiving Your Shipment......................................................................5
1.2 Ordering Information.............................................................................5
1.2.1 Accessories ..............................................................................5
1.2.2 Replacement Parts...................................................................5
2. PRODUCT FEATURES .....................................................................................6
2.1 Description............................................................................................6
2.2 Features................................................................................................6
2.3 Applications...........................................................................................7
2.4 Control Features...................................................................................8
2.5 Current Probe Connector......................................................................8
2.6 LCD Display..........................................................................................9
2.7 Keypad and Function Buttons...............................................................9
2.8 Rotary Knob........................................................................................10
3. INSTRUMENT CONFIGURATION....................................................................11
3.1 Time and Date Settings ......................................................................13
3.2 Display Options...................................................................................14
3.3 Cooling System...................................................................................15
3.4 Language............................................................................................15
4. OPERATION.................................................................................................16
4.1 Getting Started....................................................................................16
4.2 Test Leads ..........................................................................................17
4.3 Main Screen........................................................................................17
4.4 Changing the Operating Mode............................................................17
4.5 Creating a New Object Name .............................................................18
4.6 Adjusting the Test Current...................................................................18
4.7 Adjusting the Test Duration .................................................................19
4.8 Measurement Filtering and Working Frequency.................................20
4.9 Running a Test....................................................................................20
4.9.1 Normal Mode ..........................................................................20
4.9.2 Both Sides Grounded (BSG) Mode ........................................21

4Micro-ohmmeter Model 6292
4.9.3 Making Current Adjustments ..................................................21
4.10 Warning Messages ...........................................................................22
4.10.1 Saving a Test ........................................................................22
4.11 Storing Objects in Memory................................................................23
4.11.1 Viewing Stored Results.........................................................23
4.11.2 Navigating through an Object ...............................................24
4.12 Checking Memory Usage .................................................................25
4.13 Removing Tests and Objects from Memory......................................26
4.13.1 Erasing a Single Test............................................................26
4.13.2 Erasing an Object .................................................................27
4.13.3 Erasing the Entire Memory ...................................................27
4.13.4 Memory Compaction ............................................................28
5. DATAVIEW®SOFTWARE...............................................................................29
5.1 Installing DataView .............................................................................29
5.2 Connecting the Instrument to your Computer.....................................33
5.3 Establishing Communication to the Instrument ..................................33
5.4 The Micro-Ohmmeter Control Panel...................................................34
5.5 Conguring the Instrument .................................................................35
5.6 Downloading Stored Tests ..................................................................37
6. SPECIFICATIONS .........................................................................................39
7. MAINTENANCE............................................................................................40
7.1 Warning ..............................................................................................40
7.2 Cleaning..............................................................................................40
7.3 Fuse Replacement..............................................................................40
7.4 Repair and Calibration ........................................................................41
7.5 Technical and Sales Assistance..........................................................41
7.6 Limited Warranty.................................................................................42
7.7 Warranty Repairs................................................................................42

Micro-ohmmeter Model 6292 5
1. INTRODUCTION
1.1 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.
1.2 Ordering Information
Micro-ohmmeter Model 6292 (200A, DataView®Software) ...........Cat. #2129.83
Includes meter and an accessory case supplied with a set of 25ft Kelvin clips (200A hippo),
ground lead (green) with clamp, 5 ft USB cable, 110V US power cord, 15A fuse (5x20mm),
quick start guide and a USB stick supplied with a user manual and DataView®software.
1.2.1 Accessories
Current Probe Model MR6292..........................................................Cat. #2129.86
Lead - Set of 2, 50 ft Kelvin Clips (200A-Hippo) .............................Cat. #2129.73
1.2.2 Replacement Parts
Lead, Replacement Set of 2, 25 ft Kelvin Clips (200A-Hippo) .........Cat. #2129.72
Ground Lead (green) w/clamp..........................................................Cat. #2129.88
Set of 5, Fuse 15A 250V, 5x20mm (Slow-Blow)...............................Cat. #2130.00
USB Cable (5 ft) ...............................................................................Cat. #2140.46
Power Cord.......................................................................................Cat. #5000.40
Order Accessories and Replacement Parts Directly Online
Check our Storefront at www.aemc.com for availability

6Micro-ohmmeter Model 6292
2. PRODUCT FEATURES
2.1 Description
The AEMC®Model 6292 is a portable high-current micro-ohmmeter that incorpo-
rates optimized lters and protection for measurements in electrical substations.
The Model 6292 can be used to accurately measure very low contact resistances
on high voltage circuit-breakers and switches, busbars, etc., with test currents up
to 200A. It employs the four-terminal method Kelvin principle to eliminate errors
caused by test leads and their contact resistances.
Measurement accuracy is guaranteed through a state-of-the-art signal
amplication system, o󰀨set-free with high long-term stability. Resistance readings
are shown in the alphanumeric display with up to 4½ digit resolution. It allows
measurement of resistances up to 1Ωwith resolution as low as 0.1µΩ. Test
currents can be adjusted by the operator and are displayed on the digital display.
The Model 6292 has an internal memory for storing up to 8000 readings. These
stored readings can be downloaded to a computer through a USB interface. The
advanced high current generation system signicantly decreases both weight
(24 lbs [11 kg]), and size. The hard plastic case is highly resistant to impact and
environmental conditions. Internal thermal sensors in all sensitive components
prevent overheating damage to the instrument.
This rugged but light-weight instrument can easily be carried by one person.
2.2 Features
■Cooling system increases the number of sequential tests that can be
performed
■ Programmable and manual test current selection from 5 to 200A
■Accurately measures low contact resistances with test currents up to
200A
■Measures resistances from 0.1µΩto 1Ω
■Low resolution of 0.1µΩ
■ Perform tests normally or with both sides of the switch gear connected
to the ground
■ Display is available in four languages (English, French, Spanish and
Italian)
■Can measure objects with both sides grounded

Micro-ohmmeter Model 6292 7
■ Programmable test duration from 5 to 120 seconds, with unlimited
duration tests at currents 100A and below.
■Direct viewing of stored tests on the large LCD digital display
■ Stores up to 8000 test results
■ USB communication interface
■Direct printout using DataView® software and a PC
■ Congurable from a PC using DataView
■Rugged, light-weight and water-resistant case
■ Protected by double insulation terminals, and USB isolated from the
power supply
2.3 Applications
■Test switchgear contact resistance
■Test circuit breaker contact resistance
■Test air frame bonding
■Test rail bonding
■Test pipeline bonding

8Micro-ohmmeter Model 6292
2.4 Control Features
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Figure 2-1
1. Intake vents
2. Current output terminal (C+)
3. Potential terminal (P+)
4. Potential terminal (P-)
5. Current output terminal (C-)
6. Ground terminal
7. Current probe connector
8. LCD Display
9. Fuse
10. Power cord connector
11. Fan
12. Alphanumeric keypad
and function buttons
13. Rotary test knob
14. USB communication port
15. ON/OFF switch
2.5 Current Probe Connector
1
234
5
Figure 2-2
1. Positive supply for the current probe
(+9VDC)
2. Negative supply for the current probe
(Gnd)
3. Not connected
4. Current probe output signal (+)
5. Current probe output signal (-)
NOTE: The positive supply can supply 80mA maximum.

Micro-ohmmeter Model 6292 9
2.6 LCD Display
The four line x 20-digit alphanumeric LCD display provides the following
information:
■Measurement result and corresponding measuring unit
■Elapsed time since the measurement started
■Test current
■Messages to the operator
The display also features an adjustable backlight.
2.7 Keypad and Function Buttons
The Model 6292 can be operated and congured using the alphanumeric keypad.
The keypad enables you to name objects (groups of tests) and enter date/time
information, and the function buttons let you select a number of conguration
settings.
The function buttons perform as follows:
■CAPS LOCK: When enabled (indicated by a green LED just above it)
results in all typed letters appearing capitalized on the display. When
deselected, letters appear in lower case.
■NUM LOCK: When enabled causes the keypad to print numbers rather
than letters. When NUM LOCK is disabled, the keypad prints letters.
■MENU: Displays the main menu, from which you can congure test and
instrument settings.
■DEL: Erases characters.
■SAVE: Saves the conguration or advances one menu level.
■ESC: Aborts some functions or returns back one menu level.
■MODE: Selects between Normal or BSG (both sides grounded)
operation modes.
■START: Starts a test.
■STOP: Stops a test.

10 Micro-ohmmeter Model 6292
2.8 Rotary Knob
PRESS TO ENTER
SELECT/CURRENT ADJUST
Figure 2-3
The rotary knob has two primary purposes:
1. Adjusts the current during a test
2. Navigates through menus and select options.
■When the main screen is displayed, a short press
will perform the MENU button function.
■When in a menu, rotating the knob navigates
through listed options; a short press selects the
highlighted option.
■When in a menu, pressing the rotary knob for two
seconds performs an ESC button function.
■ During a xed current test, a short press will allow
manual adjustment of the test current.

Micro-ohmmeter Model 6292 11
3. INSTRUMENT CONFIGURATION
The Model 6292 can be congured by performing the following:
■ Press the MENU button to display the main menu.
■ Turn the rotary knob clockwise (to move up) or counter-clockwise (to
move down) to navigate through the listed options. When the desired
option is highlighted, select it by giving the rotary knob a short press.
■ Press the rotary knob or the SAVE button to save a setting.
■ Press and hold the rotary knob to return to the previous menu.
NOTE: At any point during navigation, pressing the MENU button will return
directly to the main menu.
The following parameters are congurable:
MAIN SCREEN:
■Setup Test
■Edit Object Name
■Test Current
■Test Duration
■Return
LANGUAGE:
■English
■Français
■Italiano
■Español
MEMORY:
■Recall
■Clear All
■Usage
■Return
SETTINGS:
■Date Format
■MM/DD/YY
■DD/MM/YY

12 Micro-ohmmeter Model 6292
■Time Format
■12H
■24H
■ Set Date
■ Set Time
■ Auto Save
■OFF
■ON
■Fan
■AUTO
■ON
■Display
■Backlight
■Contrast
■Return
■ System Info
■Return
NOTE: The instrument can also be configured from the Micro-ohmmeter Control
Panel (see §5.5) within DataView®.

Micro-ohmmeter Model 6292 13
3.1 Time and Date Settings
A good way to become familiar with the Model 6292 menu options and navigation
features is to enter time and date settings. For example, you can choose either
MM/DD/YY or DD/MM/YY format for dates. To set this option, press the MENU
button to display the main menu:
=== MENU ===
Î SETUP TEST
LANGUAGE
MEMORY
Turn the rotary knob counter-clockwise until the arrow scrolls down to the
Settings option. (Due to limited space, only three options at a time can be
displayed. Scrolling displays additional menu options.)
=== MENU ===
LANGUAGE
MEMORY
Î SETTINGS
With Settings selected, press the rotary knob to display the Settings menu.
=== SETTINGS ===
Î DATE FORMAT
TIME FORMAT
SET DATE
Select Date Format, and choose either MM/DD/YY or DD/MM/YY.
=== DATE FORMAT ===
• MM/DD/YY
DD/MM/YY
After you make your selection by pressing the rotary knob, press the ESC button
to return to the Settings menu. You can now choose the time display format (12
or 24 hour) by using the rotary knob to select the Time Format option.
=== TIME FORMAT ===
• 12H
24H

14 Micro-ohmmeter Model 6292
Now that you have dened the time and date display formats, you can now enter
the actual time and date. To do this, return to the Settings menu and select Set
Date:
SET DATE
10/16/2013
Use the number keypad to enter the current date. If you make a mistake, you can
press ESC to return to the Settings menu without changing the current settings. If
you enter an invalid number, such as “20” in the MM eld, the system defaults to
the highest allowable value (in this case 12).
To enter the system time, select Set Time from the Settings menu:
SET TIME
02:36 PM
As with the date, use the number keypad to enter the current time. If you are
using 12 hour time format, turn the rotary knob to toggle between AM and PM.
3.2 Display Options
The Settings menu lets you adjust your display’s backlight and contrast levels
to suit the illumination level in the environment in which the Model 6292 is being
used. To do this, select Display from the Settings menu. The Display menu
appears:
=== DISPLAY ===
Î BACKLIGHT
CONTRAST
RETURN
Selecting either Backlight or Contrast displays a bar graph that represents the
current setting. Use the rotary knob to raise or lower the level as appropriate.
When you are nished with the Display menu, you can select Return or press the
ESC button to return to the Settings menu.

Micro-ohmmeter Model 6292 15
3.3 Cooling System
The Model 6292 features a cooling system that increases the number of sequen-
tial tests that you can run without overheating the instrument. A fan in the front
panel exchanges internal heated air with ambient air. The cooling system
includes a lter for preventing dust and dirt from entering the instrument.
You can choose to have the fan run continuously, or have the instrument run the
fan only when it needs to cool its internal temperature. To set this option:
■ Go to the main menu and select Settings.
■ Select Fan, and then select either ON (the fan runs continuously) or
AUTO (the fan runs only when the instrument needs to cool its internal
temperature).
3.4 Language
There are four languages available to use for the text on the LCD display:
English, French, Italian and Spanish.
To change the language of all screens:
■Go to the main menu and select Language. A list of available language
options is displayed with the present language marked.
■Turn the rotary knob clockwise or counter-clockwise to select the
desired language. Conrm the choice by pressing the SAVE button or
the rotary knob.

16 Micro-ohmmeter Model 6292
4. OPERATION
4.1 Getting Started
WARNING: Read the user manual and safety warnings before using this
instrument. Safety procedures and rules for working near high voltage energized
systems must be observed during the use of this instrument. The generated
voltages and currents may be dangerous.
The Micro-ohmmeter Model 6292 uses the four-terminal Kelvin method to pre-
vent test lead resistance errors during measurement. The test current, selected
by the operator, and the reading is obtained by comparison through internal high-
stability standards.
1. Connect the instrument to a 120/240V 50/60Hz AC power supply.
2. Perform a test with the test leads shorted. If the current does not reach the
preset current (or the measured resistance is signicantly higher than 0Ω),
check the connection and try again. If the problem persists, contact technical
assistance.
3. Before turning the instrument on, connect the test leads to the device to be
tested and to the front panel terminals.
Connection Example in BSG Mode:
Figure 4-1
WARNING: Do not connect or disconnect the test leads during a measurement.
Grounding connections are strongly recommended to protect the operator and
equipment. Use a strong grounding point as close as possible to the device
under test. This ground is required to verify the instrument is working properly.

Micro-ohmmeter Model 6292 17
4.2 Test Leads
WARNING: Only use the test leads supplied with the instrument for measure-
ment and calibration.
■Make sure that the current connections are securely connected, as well as the
C-clamps, to avoid overheating.
■Carefully adjust the current terminals of the instrument. High temperatures may
occur in the current connections.
■Make sure that the leads are not coiled during the measurement.
WARNING: High temperature may occur in the current connections and around
the parts where the Hot Symbol is marked.
4.3 Main Screen
The main screen displays the present test parameters, including Object Name,
Test Mode, Test Current, Test Duration, Date, and Time.
The preceding screen indicates that the test will be performed with a current of
100A for 60 seconds in NORMAL mode and that any saved tests will be stored
in an object named “Object Name.” For tests in which the time duration has been
set to Unlimited, the main screen appears as follows:
OBJECT NAME
NORMAL (100A ---S)
MENU
DATE HOUR
Note the dashes in the second line, indicating there is no time limit set for this
test.
In the following case, the equipment is congured to run a manual test with
duration of 90 seconds in BSG mode (Both Sides Grounded). See § 4.1 for
connection diagram.
4.4 Changing the Operating Mode
There are two operation modes, NORMAL and BSG (Both Sides Grounded). The
di󰀨erence between the operation modes is the connections to the grounding.
To choose the operation mode press the blue MODE button while the main
screen is displayed. Check the main screen to verify the desired operational
mode is displayed.

18 Micro-ohmmeter Model 6292
4.5 Creating a New Object Name
To create a new object name to store the new tests, press the MENU button to
display the main menu, select Setup Test, then select Edit Object Name. The
current object name (if any) will be displayed. To edit this name, do the following:
■ Press DEL to erase characters.
■ Press CAPS LOCK to choose between uppercase or lowercase letters.
Note that for uppercase the green LED above the button will be on.
■ Press NUM LOCK to input numbers. The LED above the button will be
on when this button is selected.
■ Press the appropriate keypad button until the desired letter is
displayed. A brief pause of around two seconds will advance the cursor
and wait for the next character input.
■ Press the SAVE button or give the rotary knob a short press to enter
the object name into memory.
■ Pressing ESC will cancel the operation (changes will not be saved).
EDIT OBJECT NAME
SWITCH: 8471 12
NOTE: Object names are limited to a maximum of 20 characters.
When you change the object name, the number of tests associated with it is set
to one. This occurs because the new object name represents a new group of
tests.
4.6 Adjusting the Test Current
To adjust the test current, go to the main menu, select Setup Test, then select
Test Current. A list of available xed test currents and a MANUAL option will be
displayed. When you select MANUAL, you will set the current during the test by
turning the rotary knob.
Turn the rotary knob clockwise or counter-clockwise to navigate the available
current level options (50, 100, 150, or 200A). Conrm the choice by pressing the
SAVE button or rotary knob. To abort the setup press ESC.