AEMC Megohmmeters 6522 User manual

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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.
This documentation is provided “as is,” without warranty of any kind, express, implied, or otherwise. Chauvin Arnoux®,
completeness of the text, graphics, or other information contained in this documentation. Chauvin Arnoux®, Inc. shall not
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.
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Thank you for purchasing the Megohmmeter Model 6522 or 6524.
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
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
corresponds to measurements taken on circuits directly connected to
low-voltage installations.
Example: power supply to electro-domestic devices and portable tools.
corresponds to measurements on building installations.
devices.
corresponds to measurements taken at the source of low-voltage
installations.
Example: power feeders and protection devices.
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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,
Carefully read and understand all precautions for use.
Be aware of all electrical hazards when using this instrument.
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 600VRMS with respect to ground or 700VRMS maximum
between terminals.
Do not use the instrument on networks whose voltage or category
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
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.
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Megohmmeter Model 6522/6524
1.1 Receiving Your Shipment......................................................................4
1.2 Accessories...........................................................................................5
1.3 Replacement Parts ...............................................................................5
1.4 Description............................................................................................5
1.4.1 Model 6522 (Front)...................................................................6
1.4.2 Model 6524 (Front)...................................................................7
1.5 Back of Instrument................................................................................8
1.6 Terminals ..............................................................................................9
1.7 Function Buttons...................................................................................9
1.8 LCD Display .......................................................................................10
2.1 Setting Up the Instrument...................................................................11
...........................................................11
2.1.2 Alarms.....................................................................................12
2.1.2.1 Activating/Deactivating the Alarm Function....................12
2.1.2.2 Setting an Alarm Threshold............................................13
2.1.2.3 Viewing Alarms ..............................................................14
REL
2.1.4 HOLD
2.1.5 Backlighting ............................................................................16
2.1.6 Standby Mode ........................................................................16
2.2 Taking Measurements.........................................................................17
2.2.1 Voltage Measurement.............................................................17
2.2.2 Insulation Measurement .........................................................18
2.2.2.1 TEST Button Operation..................................................20
2.2.2.2 Timed Tests ...................................................................21
2.2.2.3 Remote Control Probe (Optional) ..................................22
2.2.3 Continuity Measurement.........................................................23
2.2.3.1 Lead Compensation.......................................................23
2.2.3.2 Continuity Measuring .....................................................24
2.2.4 Resistance Measurement (Model 6524).................................25
2.3 Recording Data (Model 6524).............................................................26
2.3.1 Recording a Measurement .....................................................26
2.3.2 Viewing Stored Recordings ....................................................27
2.3.3 Deleting Recordings ...............................................................28
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Megohmmeter Model 6522/6524
2.3.3.1 Deleting a Single Recording ..........................................28
2.3.3.2 Deleting All Recordings..................................................28
3.1 General Reference Conditions ...........................................................29
......................................................................29
3.2.1 Voltage Measurement.............................................................29
3.2.2 Frequency Measurement........................................................30
3.2.3 Insulation Measurement .........................................................30
3.2.4 Continuity Measurement.........................................................32
3.2.5 Resistance Measurement (Model 6524).................................32
3.2.6 Timer.......................................................................................33
3.2.7 Storage Memory (Model 6524)...............................................33
3.3 Operating Environment.......................................................................33
3.3.1 Voltage Measurement.............................................................33
3.3.2 Insulation Measurement .........................................................34
3.3.3 Resistance and Continuity Measurement...............................35
3.3.4 Intrinsic Uncertainty and Operating Uncertainty.....................36
3.4 Power Supply......................................................................................36
3.5 Environmental Conditions...................................................................36
.................................................................37
3.7 Safety Standards ................................................................................37
4.1 Maintenance .......................................................................................38
4.1.1 Cleaning .................................................................................38
4.1.2 Replacing the Batteries ..........................................................38
4.2 Troubleshooting ..................................................................................40
4.2.1 Errors......................................................................................40
4.2.1.1 Voltage present before an insulation measurement.......40
4.2.1.2 Range exceeded during an insulation measurement.....40
4.2.1.3 Voltage present during a continuity, resistance, or capaci-
tance measurement......................................................................41
4.2.1.4 Memory full (Model 6524) ..............................................41
4.2.2 Resetting the Instrument ........................................................41
4.3 Repair and Calibration........................................................................42
4.4 Technical and Sales Assistance..........................................................42
4.5 Limited Warranty.................................................................................43
4.6 Warranty Repairs................................................................................43
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Megohmmeter Model 6522/6524
Megohmmeter Test Probe ................................................................
Case - Field Case (Waterproof)........................................................
Continuity Probe...............................................................................
Probe - Set of 2, Color-coded (Red/Black) Grip Probes...................
Probe – Red test probe (1000V Cat IV, 15A, UL).............................
Carrying pouch for Cable Testers, Megohmmeters, Multimeters, etc......................
..........................................................................................................
Lead – Set of 2, 5 ft silicone color-coded (red/black) with 4mm straight/right
angle banana plugs (1000V CAT IV, 15A, UL V2) ............................
Clip – safety alligator – black (1000V CAT IV, 15A, UL V2)..............
Clip – safety alligator – red (1000V CAT IV, 15A, UL V2) .................
Probe – black test probe (1000V Cat IV, 15A, UL) ...........................
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The Megohmmeters Models 6522 and 6524 are portable measuring instruments
with digital displays. They are powered by batteries. These instruments can
check the safety of electrical installations. For example, they can be used to test
new installations before they are powered up, check an existing installation in a
Model 6522 Model 6524
Insulation test voltages 250, 500, and
1000V
50, 100, 250, 500, and
1000V
PI and DAR ratios calculation
Continuity measurement
Resistance measurement
Programmable alarms
Frequency measurement
Storage of the measurements
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Megohmmeter Model 6522/6524
1
2
3
4
5
Figure 1
1. Input terminals
2. Blue backlit LCD
Four function buttons (see § 1.7)
button to start insulation measurements (see § 2.2.2.1)
5. Six-position rotary switch to choose the function or to turn the
instrument OFF
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Megohmmeter Model 6522/6524
1
2
3
4
5
Figure 2
1. Input terminals
2. Blue backlit LCD
Six function buttons (see § 1.7)
button to start insulation measurements (see § 2.2.2.1)
5. Ten-position rotary switch to choose the function or to turn the
instrument OFF
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Megohmmeter Model 6522/6524
1
2
3
4
5
Figure 3
1. Captive quarter-turn screw
2. Battery compartment cover
Mounting magnets, molded into instrument case (Model 6524)
4. Non-skid pads
5. Stand
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Megohmmeter Model 6522/6524
Figure 4
The instrument has one positive ( + ) terminal and one negative ( - ) terminal. The
negative terminal also supports the remote probe accessory (see § 2.2.2.3).
In general, each button has two functions. One is marked on the button, and is
enabled via a short press. The second function is marked under the button, and
is enabled by a long (>2 seconds) press.
Selects the , , , and functions (§ 2.2.2).
Toggles backlighting ON and OFF (§ 2.1.5).
HOLD 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).
(Model 6524) Activates/deactivates alarms (§ 2.1.2).
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 on the Model 6524 (§ 2.1.2).
measurement and a stored reference measurement (§ 2.1.3).
MEM (Model 6524) Records measurements (§ 2.3).
(Model 6524) Erase recorded measurements (§ 2.3.3).
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Megohmmeter Model 6522/6524
1
2
3
4
Figure 5
1. Logarithmic bar graph displays insulation measurements
2. Secondary display area
Main display area
4. Icons/indicators
When the measured value is below the minimum, the instrument displays .
positive and negative limits, the instrument displays OL or – OL.
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Megohmmeter Model 6522/6524
A >2 second press of the button enables you to
then use the and buttons to scroll through and modify
parameters.
1st press
on
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.
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Megohmmeter Model 6522/6524
2nd 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 symbol appears on the
display when you exit Set-Up.
Note that this setting reverts to OFF
when you turn OFF the instrument.
3rd press
on
Displays the instrument model
number.
4th press
on version.
5th press
on
Displays the instrument hardware
version.
6th press
on
The instrument includes an alarm function that sounds an audible buzzer when a
below).
The alarm is available in continuity testing mode. Pressing
the button activates the alarm. The symbol appears
measurement is below this threshold and the buzzer is active,
the instrument emits an audible signal.
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Megohmmeter Model 6522/6524
The alarm is available in insulation, resistance, and continuity
measurement modes. Pressing the button activates the
alarm. The symbol is displayed, along with the threshold
value.
To turn OFF the alarm buzzer while it is sounding, press the HOLD button. To
deactivate an active alarm function, press the button.
While is displayed indicating the alarm function is active, you can change
the alarm threshold by pressing the button (except during insulation
values:
Insulation:
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Megohmmeter Model 6522/6524
In each measurement mode, the third threshold can be replaced by a user-
1.
2.
button. This symbol indicates the direction of the alarm threshold: < for a
low threshold and > for a high threshold.
button to change its value.
4. buttons to select and change the other digits in the
threshold value, as well as the units of measurement.
5.
setting.
When the measurement is below a low alarm threshold or above a high alarm
threshold, the instrument emits a continuous audible signal and the LCD
indicates the threshold crossed:
When checking continuity, this enables you to determine whether or not the
display. You can similarly check insulation quality.
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Megohmmeter Model 6522/6524
REL
For an insulation, resistance, or capacitance measurement,
To activate this function, take a measurement, and then press
the button. This measurement becomes the reference
(Rref) and will be stored and subtracted from subsequent
measurement values (Rmeas REL symbol appears on
the LCD while this function is activated.
If the measured value is less than the stored value, the display becomes
negative.
)
by pressing the button until the % sign appears:
To deactivate the function, press the button or turn the rotary switch
to another setting.
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Megohmmeter Model 6522/6524
Pressing the HOLD button freezes the display of the
measurement. This can be done in all functions except the
settings, or during a timed measurement ( , , ).
To unfreeze the display, press the HOLD button again.
Pressing the button turns ON backlighting for the LCD.
To switch it OFF, press the button again. Otherwise, backlight-
ing goes OFF automatically at the end of one minute.
After 5 minutes of operation with no user activity, the instrument automatically
switches to standby mode. To restore normal operation, simply press any button.
The instrument returns to the state it was in prior to entering standby mode, with
no loss of information (value of the last measurement, compensation of the leads,
Rel, timed mode, alarm, etc.).
Automatic switching to standby mode is disabled during:
insulation measurements in mode and in timed mode ( , , or
).
continuity measurements, for as long as measurements are made.
Automatic switching to standby is disabled via the button (see § 2.1.1).
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