AEMC 6292 Operating Manual
n
MICRO-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
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 qualied 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 burnrelated 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 regulations 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.
Denition 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.
Micro-ohmmeter Model 6292
1
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
modication 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 specications.
2 Micro-ohmmeter Model 6292
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
Micro-ohmmeter Model 6292
3
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 Conguring 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
4 Micro-ohmmeter Model 6292
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 20 ft Kelvin test leads
with 3” C-clamp, 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
Set of Two, 50 ft Color-coded Kelvin Leads with 3” C-Clamp ..........Cat. #2129.87
1.2.2 Replacement Parts
Ground Lead (green) w/clamp .......................................................... Cat. #2129.88
Set of Two, 20 ft Kelvin Test Leads with 3” C-Clamp ........................Cat. #2129.89
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
Micro-ohmmeter Model 6292
5
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
amplication system, oset-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 1Ω with 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 signicantly 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 0.1µΩ to 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
6 Micro-ohmmeter Model 6292
■ 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
■ Congurable 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
Micro-ohmmeter Model 6292
7
2.4 Control Features
1
2
3
8
9
10
11
4
5
6
7
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
2.5 Current Probe Connector
1. Positive supply for the current probe
(+9VDC)
1
2
3
4
2. Negative supply for the current probe
5
(Gnd)
3. Not connected
4. Current probe output signal (+)
5. Current probe output signal (-)
12
13
14
15
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
Figure 2-2
NOTE: The positive supply can supply 80mA maximum.
8 Micro-ohmmeter Model 6292
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 congured 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 conguration
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 congure test and
instrument settings.
■ DEL: Erases characters.
■ SAVE: Saves the conguration 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.
Micro-ohmmeter Model 6292
9
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.
10 Micro-ohmmeter Model 6292
3. INSTRUMENT CONFIGURATION
The Model 6292 can be congured 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 congurable:
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
Micro-ohmmeter Model 6292
11
■ 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®.
12 Micro-ohmmeter Model 6292
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
Micro-ohmmeter Model 6292
13
Loading...