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 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 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.
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.
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
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.
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 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
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
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 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 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 0.1µΩto 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
■ 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
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.
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