Aemc instruments 6536 User Manual
Megohmmeter
Model 6536
User Manual
ENGLISH
www.aemc.com
®
CHAUVIN ARNOUX GROUP
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 NIST 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 #: 2155.56
Model #: 6536
Please fill in the appropriate date as indicated:
Date Received: _________________________________
Date Calibration Due: _______________________
Chauvin Arnoux®, Inc.
d.b.a AEMC® Instruments
www.aemc.com
Copyright © Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments. All rights reserved.
No part of this documentation may be reproduced in any form or by any means (including electronic storage and retrieval
or translation into any other language) without prior agreement and written consent from Chauvin Arnoux®, Inc., as
governed by United States and International copyright laws.
Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments
15 Faraday Drive • Dover, NH 03820 USA
Tel: (800) 945-2362 or (603) 749-6434 • Fax: (603) 742-2346
This documentation is provided “as is,” without warranty of any kind, express, implied, or otherwise. Chauvin Arnoux®,
Inc. has made every reasonable effort to ensure that this documentation is accurate; but does not warrant the accuracy or
completeness of the text, graphics, or other information contained in this documentation. Chauvin Arnoux®, Inc. shall not
be liable for any damages, special, indirect, incidental, or inconsequential; including (but not limited to) physical, emotional
or monetary damages due to lost revenues or lost prots that may result from the use of this documentation, whether or
not the user of the documentation has been advised of the possibility of such damages.
Chauvin Arnoux®, Inc and AEMC® are registered trademarks of AEMC® Instruments.
Thank you for purchasing the Megohmmeter Model 6536.
For best results from your instrument:
■ Read these operating instructions carefully
■ Comply with the precautions for use
WARNING, risk of DANGER! The operator must refer to these
instructions whenever this danger symbol appears
WARNING, risk of electric shock. The voltage applied to parts
marked with this symbol may be hazardous
Equipment is protected by double insulation
> 700V
The voltage on the terminals must not exceed 700V
Ground/Earth
Battery
Information or useful tip
Remote test probe
The product is recyclable in accordance with standard ISO14040
This instrument exceeds regulatory requirements with respect to
recycling and reuse
Indicates conformity with European directives, in particular LVD and
EMC
Indicates that, in the European Union, the instrument must undergo
selective disposal in compliance with Directive WEEE 2002/96/EC.
This instrument must not be treated as household waste
Denition of Measurement Categories (CAT)
■ CAT II corresponds to measurements taken on circuits directly connected to
low-voltage installations.
Example: power supply to electro-domestic devices and portable tools.
■ CAT III corresponds to measurements on building installations.
Example: distribution panel, circuit-breakers, machines or xed industrial
devices.
■ CAT IV corresponds to measurements taken at the source of low-voltage
installations.
Example: power feeders and protection devices.
PRECAUTIONS FOR USE
This instrument is compliant with safety standard IEC 61010-2-030, and the leads
are compliant with IEC 61010-031, for voltages up to 600V in CAT IV or 1000V in
CAT III.
Failure to observe the following safety instructions may result in electric shock,
re, explosion, and damage to the instrument and installation.
■ Carefully read and understand all precautions for use.
■ Be aware of all electrical hazards when using this instrument.
■ Using this instrument other than as specied may compromise its user
protection features.
■ The safety of any system in which this instrument is incorporated is the
responsibility of the integrator of the system.
■ This instrument can be used on CAT IV installations, for voltages
not exceeding 600V
RMS
with respect to ground or 700V
between terminals.
■ Do not use the instrument on networks whose voltage or category
exceeds those specied in this manual.
■ Observe all environmental conditions of use (see § 3).
■ Except for voltage measurements, take no measurements on
electrically “live” systems.
■ Do not use the instrument if it appears damaged, incomplete, or poorly
closed.
■ Before each use, check the condition of the insulation on the leads,
housing, and accessories. Any part on which the insulation is
deteriorated (even partially) must be set aside for repair or scrapping.
■ Using the instrument without its battery compartment cover may result
in electric shock to the user.
■ Before using your instrument, ensure it is completely dry.
■ Use only the leads and accessories supplied. The use of leads (or
other accessories) of a lower voltage rating or category limits the use
of the instrument/leads (or accessories) combination to the lowest
category and service voltage.
■ When handling the leads, test probes, and alligator clips, keep your
ngers behind the physical guards.
■ Before removing the battery compartment cover, ensure all
measurement leads and accessories are disconnected. Replace all
batteries at once. Use alkaline batteries.
■ Use personal protection equipment where appropriate.
■ All troubleshooting and metrological checks must be done by
competent, accredited personnel.
RMS
maximum
Table of Contents
1. INTRODUCTION .....................................................................4
1.1 Receiving Your Shipment......................................................................4
1.2 Accessories...........................................................................................5
1.3 Replacement Parts ...............................................................................5
1.4 Description ............................................................................................5
1.5 Front of Instrument ...............................................................................6
1.6 Back of Instrument ................................................................................7
1.7 Terminals ..............................................................................................8
1.8 Function Buttons ...................................................................................8
1.9 LCD Display .........................................................................................9
2. OPERATION .......................................................................... 10
2.1 Setting Up the Instrument ...................................................................10
2.1.1 Conguration Settings ...........................................................10
2.1.2 Alarms.....................................................................................11
2.1.2.1 Activating/Deactivating the Alarm Function .................... 11
2.1.2.2 Setting an Alarm Threshold ............................................12
2.1.2.3 Viewing Alarms ..............................................................13
2.1.3 ∆REL Function .......................................................................13
2.1.4 HOLD Function.......................................................................14
2.1.5 Backlighting ............................................................................15
2.1.6 Standby Mode ........................................................................15
2.2 Taking Measurements .........................................................................15
2.2.1 Voltage Measurement.............................................................15
2.2.2 Insulation Measurement .........................................................17
2.2.2.1 TEST Button Operation ..................................................19
2.2.2.2 Timed Tests ...................................................................19
2.2.2.3 Remote Control Probe (Optional) ..................................20
2.2.3 Continuity Measurement.........................................................21
2.2.3.1 Lead Compensation .......................................................21
2.2.3.2 Continuity Measuring .....................................................22
2.2.4 Resistance Measurement .......................................................23
2.2.5 Floor Resistance Testing ........................................................24
2.2.5.1 Setup..............................................................................25
2.2.5.2 Test Procedure ...............................................................25
2.2.5.3 Measurement Results ....................................................28
2
Megohmmeter Model 6536
3. SPECIFICATIONS ................................................................. 29
3.1 General Reference Conditions ...........................................................29
3.2 Electrical Specications ......................................................................29
3.2.1 Voltage Measurement.............................................................29
3.2.2 Insulation Measurement .........................................................30
3.2.3 Continuity Measurement.........................................................31
3.2.4 Resistance Measurement .......................................................32
3.2.5 Timer.......................................................................................32
3.2.6 Floor Resistance Testing ........................................................32
3.3 Operating Environment .......................................................................32
3.3.1 Voltage Measurement.............................................................32
3.3.2 Insulation Measurement .........................................................33
3.3.3 Resistance and Continuity Measurement ...............................34
3.3.4 Intrinsic Uncertainty and Operating Uncertainty .....................35
3.4 Power Supply......................................................................................35
3.5 Environmental Conditions ...................................................................36
3.6 Mechanical Specications .................................................................36
3.7 Safety Standards ................................................................................36
4. MAINTENANCE & TROUBLESHOOTING ...............................37
4.1 Maintenance .......................................................................................37
4.1.1 Cleaning .................................................................................37
4.1.2 Replacing the Batteries ..........................................................37
4.2 Troubleshooting ..................................................................................39
4.2.1 Errors ......................................................................................39
4.2.1.1 Voltage present before an insulation measurement.......39
4.2.1.2 Range exceeded during an insulation measurement.....39
4.2.1.3 Voltage during continuity/resistance measurement .......40
4.2.2 Resetting the Instrument ........................................................40
4.3 Repair and Calibration ........................................................................40
4.4 Technical and Sales Assistance ..........................................................41
4.5 Limited Warranty .................................................................................41
4.6 Warranty Repairs ................................................................................41
Megohmmeter Model 6536
3
1. INTRODUCTION
1.1 Receiving Your Shipment
Upon receiving your megohmmeter product package, ensure 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, providing a detailed description. Save the
damaged packing container to substantiate your claim.
Ordering Information:
Megohmmeter Model 6536.............................................................. Cat. #2155.56
Megohmmeter Model 6536 ESD Floor Kit ....................................... Cat. #2155.57
Shipping Contents:
Megohmmeter Model 6536
Two color-coded (red/black) 1.5m test leads,
two alligator clips, two grip probes and
one test probe (black)
Also includes 6 AA batteries and a user manual.
4
Soft Carrying Case
ESD Floor Kit
(only with Cat. #2155.57)
Megohmmeter Model 6536
1.2 Accessories
Megohmmeter Test Probe (600V CAT IV) ........................................Cat. #2155.75
Case - Field Case (Waterproof - Replacement for ESD Floor Kit) ... Cat. #2118.98
Case - Hands Free Carrying Case ................................................... Cat. #2118.99
Continuity Pole .................................................................................Cat. #2138.54
1.3 Replacement Parts
Lead - Set of 2, Color-coded 5 ft (Red/Black) Silicone Leads, Test Probes &
Alligator Clips {Rated 1000V CAT IV} ............................................... Cat. #2152.05
Probe - Set of 2, Color-coded (Red/Black) Grip Probes ................... Cat. #2152.26
Weights - Set of 2, 5 lbs each with conductive rubber bottom pad
(RoHS) ..............................................................................................Cat. #2155.76
Adapter - 4mm non-insulated for safety leads
(Replacement for ESD Floor Kit) ...................................................... Cat. #1017.45
For accessories and replacement parts, visit our store at www.aemc.com.
1.4 Description
The Megohmmeter Model 6536 is a portable measuring instruments with digital
displays, and is powered by batteries. The instrument measures insulation with
test voltages from 10 to 100V in one-volt steps. Other features include:
■ Continuity measurement
■ Resistance measurement
■ Programmable alarms
The Model 6536 is also available as a oor resistance testing kit (see § 2.2.5)
for testing both point-to-ground and point-to-point electrostatic discharge (ESD).
In addition to the instrument, the kit contains two 5 lb (2.3 kg) oor weights
(also referred to as NFPA probes) that are in compliance with EOS/ESD 11.11
specications. Each oor weight is coated with insulating paint and a conductive
rubber base. The instrument, oor weights, and test leads are packaged in a
rugged eld case. The kit provides all the necessary elements for compliance
with the ANSI/ESD STM97.2-2006 standard for testing ESD ooring.
Megohmmeter Model 6536
5
1.5 Front of Instrument
VAR
>
<
ALARM
HOLD
REL
G
M mAµA
k
G
G
M
k
P
1
M
G
2
DC
AC
V
3
4
k
HOLD
V
Ω
SET-UP
MEM
TEST
OFF
Ω
CLR
0
REL
MΩ
VAR
5
MEGOHMMETER
MODEL 6536
Figure 1
1. Input terminals
2. Blue backlit LCD
3. Six function buttons (see § 1.8)
4. TEST button to start insulation measurements (see § 2.2.2.1)
5. Five-position rotary switch to choose the function or to turn the instrument
OFF
6
Megohmmeter Model 6536
1.6 Back of Instrument
1
2
3
4
5
Figure 2
1. Captive quarter-turn screw
2. Battery compartment cover
3. Mounting magnets, molded into instrument case
4. Non-skid pads
5. Stand
Megohmmeter Model 6536
7
1.7 Terminals
0
> 700V
600V CAT IV
Figure 3
The instrument has one positive ( + ) terminal and one negative ( - ) terminal. The
negative terminal also supports the remote probe accessory (see § 2.2.2.3).
1.8 Function Buttons
Several keys have two functions. One is marked on the key, and is enabled via
a short press. The second function is marked under the key, and is enabled by a
long (>2 seconds) press.
BUTTON
HOLD
SET-UP
∆Rel
DESCRIPTION
Selects the and functions (§ 2.2.2).
Toggles backlighting ON and OFF (§ 2.1.5).
Freezes/unfreezes the displayed measurement on the LCD (§
2.1.4).
Accesses the instrument’s setup parameters and information (§
2.1.1).
Applies lead compensation in continuity testing (§ 2.2.3.1).
Activates/deactivates alarms (§ 2.1.2).
The and keys allow you to:
■ Modify the display and program the durations of
insulation measurements (§ 2.2.2.2).
■ Choose the continuity test current (§ 2.2.3).
■ Program the alarm thresholds (§ 2.1.2).
Displays the difference between the present measurement and a
stored reference measurement (§ 2.1.3).
8
Megohmmeter Model 6536
1.9 LCD Display
G
M
V
DC
AC
k
<
>
ALARM
VAR
k
M mAµA
G
G
M
HOLD
REL
P
1
2
3
4
Figure 4
1. Logarithmic bar graph displays insulation measurements
2. Secondary display area
3. Main display area
4. Icons/indicators
When the measured value is below the minimum, the instrument displays - - - - .
When measuring voltage, if the reading falls outside the range dened by the
positive and negative limits, the instrument displays OL or – OL.
Megohmmeter Model 6536
9
2. OPERATION
SET-UP
Except when measuring voltage, all measurements must be made on
powered-off systems. Therefore check to ensure there is no voltage on
the system under test before making a non-voltage measurement. When
the rotary switch is set to the voltage or an insulation testing position,
the instrument measures and displays any voltage present at the input
terminals prior to the user pressing the test button.
2.1 Setting Up the Instrument
2.1.1 Configuration Settings
A >2 second press of the SET-UP button enables you to
change conguration settings on the instrument. You can
then use the ▲ and ► buttons to scroll through and modify
> 2s
parameters.
In Set-Up mode, the ▲ button performs the following functions:
1st press
on
10
The alarm buzzer is active. To
deactivate it:
1. Press . On will blink to
indicate it is selected.
2. Press to change the
setting to OFF.
3. Press to validate the
change.
The symbol disappears from the
display when you exit Set-Up.
Note that this setting reverts to On
when you turn OFF the instrument.
Megohmmeter Model 6536
2nd press
P
on
3rd press
on
Automatic switching to standby
mode is activated. To deactivate it:
1. Press to select OFF (the
setting blinks).
2. Press to change the
setting to On.
3. Press to validate the
change.
The P symbol appears on the
display when you exit Set-Up.
Note that this setting reverts to OFF
when you turn OFF the instrument.
Displays the instrument model
number.
4th press
on
5th press
on
6th press
on
Displays the instrument rmware
version.
Displays the instrument hardware
version.
Return to the rst press.
2.1.2 Alarms
The instrument includes an alarm function that sounds an audible buzzer when a
dened alarm condition is measured.
2.1.2.1 Activating/Deactivating the Alarm Function
The alarm function is available in insulation, resistance, and
continuity measurement modes. Pressing the button
activates the alarm. The
with the threshold value.
TEST
symbol appears on the LCD, along
Megohmmeter Model 6536
11
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