Greenlee 5882A User manual

INSTRUCTION MANUAL
MANUAL DE INSTRUCCIONES
MANUEL D’INSTRUCTIONS
Read and understand all of the instructions and safety information in this
manual before operating or servicing this tool.
Lea y entienda todas las instrucciones y la información sobre seguridad
que aparecen en este manual, antes de manejar estas herramientas o
darles mantenimiento.
Lire attentivement et bien comprendre toutes les instructions et les
informations sur la sécurité de ce manuel avant d’utiliser ou de procéder à
l’entretien de cet outil.
5882A
Megohmmeter
Megóhmetro
Megohmmetre
52081233 Rev 1 © 2018 Greenlee Inc. 7/18
HOLD
MEM
SET-UP
CLR
0
100V
V
kW
OFF
W
250V
500V
1000V
50V
MW
MR
TEST
REL
G
M
VDC
AC
k
<
>
ALARM
MEM
DARPI T1T2
k
MmAµA
GVHz
%
G
M
HOLD
REL
P
Español............... 34
Français.............. 66

2
Table of Contents
Description ....................................................................................................3
Safety............................................................................................................3
Purpose of this Manual ..................................................................................3
Important Safety Information......................................................................4–6
Identification..............................................................................................7–9
Using the Features.................................................................................10–11
Indicators ....................................................................................................12
Operation.....................................................................................................13
Insulation Measurement ........................................................................14–15
Continuity Measuring.............................................................................16–17
Resistance Measurement.............................................................................18
Configuration Settings .................................................................................19
Viewing Alarms............................................................................................20
ΔREL Function.............................................................................................21
HOLD Function.............................................................................................22
Recording Data......................................................................................22–23
Deleting Recordings.....................................................................................24
Maintenance & Troubleshooting .............................................................25–26
Troubleshooting Errors...........................................................................27–29
Accuracy......................................................................................................30
Specifications..............................................................................................31
Measurement Categories.............................................................................32
Statement of Conformity..............................................................................32
Maintenance................................................................................................33
Replacement Parts.......................................................................................33

5882A
3
Description
The Greenlee 5882A Megohmmeter is intended to test insulation, detect voltage and verify
continuity. The megohmmeter automatically discharges the tested object when the test is complete.
In addition, the 5882A can measure resistance.
Safety
Safety is essential in the use and maintenance of Greenlee tools and equipment. This instruction
manual and any markings on the tool provide information for avoiding hazards and unsafe practices
related to the use of this tool. Observe all of the safety information provided.
Purpose of This Manual
This instruction manual is intended to familiarize all personnel with the safe operation and maintenance
procedures for the Greenlee 5882A Megohmmeter.
Keep this manual available to all personnel.
Replacement manuals are available upon request at no charge at www.greenlee.com.
Do not discard this product or throw away!
For recycling information, go to www.greenlee.com.
All specifications are nominal and may change as design improvements occur. Greenlee Inc. shall not be liable for
damages resulting from misapplication or misuse of its products.
® Registered: The color green for electrical test instruments is a registered trademark of Greenlee Inc.
KEEP THIS MANUAL

4
SAFETY ALERT SYMBOL
This symbol is used to call your attention to hazards or unsafe practices which could result in an
injury or property damage. The signal word, defined below, indicates the severity of the hazard.
The message after the signal word provides information for preventing or avoiding the hazard.
Immediate hazards which, if not avoided, WILL result in severe injury or death.
Hazards which, if not avoided, COULD result in severe injury or death.
Hazards or unsafe practices which, if not avoided, MAY result in injury or property damage.
Read and understand this material before operating or servicing this
equipment. Failure to understand how to safely operate this tool could result in
an accident causing serious injury or death.
Electric shock hazard:
Contact with live circuits could result in severe injury or death.
Important Safety Information

5882A
5
Important Safety Information (cont’d)
Electric shock hazard:
• Do not expose this unit to rain or moisture.
• Do not use the unit if it is wet or damaged.
• Use test leads or accessories that are appropriate for the application. Refer to the category and
voltage rating of the test lead or accessory.
• Inspect the test leads or accessory before use. They must be clean and dry, and the insulation
must be in good condition.
• Use this unit for the manufacturer’s intended purpose only, as described in this manual. Any other
use can impair the protection provided by the unit.
Failure to observe these warnings could result in severe injury or death.
Electric shock hazard:
• Do not apply more than the rated voltage between any two input terminals, or between any input
terminal and earth ground.
• Do not contact the test lead tips or any uninsulated portion of the accessory.
• Do not contact the test lead tips while performing the insulation resistance test.
• Do not contact the test lead tips while the continuity function (20 Ω) is selected.
Failure to observe these warnings could result in severe injury or death.
Electric shock hazard:
• Do not operate with the case open.
• Before opening the case, remove the test leads from the circuit and shut off the unit.
Failure to observe these warnings could result in severe injury or death.

6
Important Safety Information (cont’d)
Electric shock hazard:
• Shut off and lock out power. Make sure that all capacitors are discharged. Voltage must not be
present.
• Set the selector and connect the test leads so that they correspond to the intended measurement.
Incorrect settings or connections can result in a blown fuse.
• Using this unit near equipment that generates electromagnetic interference can result in unstable
or inaccurate readings.
Failure to observe these warnings could result in severe injury or death.
Electric shock hazard:
Do not change the measurement function while the test leads are connected to a component
or circuit.
Failure to observe this precaution may result in injury and can damage the unit.
Electric shock hazard:
• Do not attempt to repair this unit. It contains no user-serviceable parts.
• Do not expose the unit to extremes in temperature or high humidity. Refer to “Specifications.”
Failure to observe these precautions may result in injury and can damage the unit.

5882A
7
Identification
1. Positive (+) Input Terminal
2. Negative (–) Input Terminal
3. Timer
4. Backlight
5. ΔRel Button
6. Selector
7. Test Button
8. Alarm Button
9. pChange the Value
10. uSelect a Parameter or Value
11. Display
HOLD
MEM
SET-UP
CLR
0
100V
V
kW
OF F
W
250V
500V
1000V
50V
MW
MR
TEST
REL
G
M
VDC
AC
k
<
>
ALARM
MEM
DARPI T1T2
k
M mAµA
G
VHz %
G
M
HOLD
REL
P
11
7
6
8 5
1 2
4
9
310

8
Identification (cont’d)
Display Icons
12. Insulation resistance test in progress
13. LOCK Lock Mode
14. Timer is active
15. < Alarm will trigger if measured value
is less than the setpoint
16. > Alarm will trigger if measured value
is greater than the setpoint
17. yBar graph element
18. DAR Dielectric absorption ratio
19. PI Polarization index
20. 00:00 Timekeeper display or
0000 Setpoints
21. T1T2 Test points
22. uInsulation resistance is greater than 2 GΩ
23. G 109
24. M 106
25. k 103
26. m 10-3
27. μ 10-6
28. n 10-9
29. Ω Ohms
30. A Amps
31. V Volts
32. F Farad
33. Hz Hertz (frequency)
34. % Percent
35. AC Alternating Current
36. DC Direct Current
37. Battery status
38. Auto power off is inactive
39. Speaker is active
40 Alarm is on, or programming
is in progress
41. ΔREL Displayed when comparing two
values using the ΔREL button
42. Lead resistance is compensated
43. HOLD Hold Current Display
44. Read the instruction manual
45. Main Display
46. –Polarity indicator
47. ALARM Alarm is on, or programming is
in progress
48. MEM Measurement stored in memory
49. tInsulation resistance is less than
50 kΩ
G nF
µF
M
VDC
AC
k
<
>
ALARM
MEM
VAR
DARPI T1T2
k nF/ km
M
mAµA
G
VHz %
G
M
HOLD
REL
P
48
47
46
45
49
44 43 42 41 40 39 38
22
35–36
23–34
37
12 13 21
20
18–19
1714
15–16

5882A
9
Identification (cont’d)
Symbols on the Unit
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
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 directive, in particular LVD and EMC
Recycle product in accordance with manufacturer’s directions
> 700V

10
Using the Features
Insulation Resistance Measurement Test Button (Yellow Button)
Press to apply the test voltage to the item to be tested. Release to terminate the test.
• While the yellow insulation resistance test button is pressed, the symbol will appear
on the display.
• See the Indicator Table for results of the insulation test.
Alarm
Press ALARM to turn the alarm on. Press again to turn the alarm off.
Note: Pressing the Test button activates the alarm if the meter is in continuity test mode. Press the
HOLD button to turn off the alarm while grounding.
Alarm Setpoints
1. Press and hold ALARM to review the setpoints.
2. Press pand uto change the setpoints. Press and hold ALARM to save the settings.
• Continuity: < 2Ω, < 1Ω, and < 0.5Ω
• Resistance: > 50kΩ, > 100kΩ, and > 200kΩ
• Insulation:
50V g< 50 kΩ, < 100 kΩ, and < 200 kΩ
100V g< 100 kΩ, < 200 kΩ, and < 400 kΩ
250V g< 250 kΩ, < 500 kΩ, and < 1 MΩ
500V g< 500 kΩ, < 1 MΩ, and < 2 MΩ
1000V g< 1 MΩ, < 2 MΩ, and < 4 MΩ
Note: The megohmmeter will correct any setting that is entered improperly.
Timed Insulation Resistance Test
Pressing the TIMER button activates timed test mode. This is only active for
insulation measurements.
1st Press: This locks the TEST button. When you press the TEST button, the unit will run without
requiring you to hold the TEST button down. The test will run for 15 minutes, or until you
press the TEST button again.
2nd Press: This activates timed test mode. You can set the test time with uand pto between 1 and
39:59 minutes. Use the ubutton to begin and move to the next digit. Use the pbutton to
change the digit.
3rd Press: This enables the PI function. This is used to calculate the polarization index (ratio of the
measurement at 10 minutes to the measurement at 1 minute.)
4th Press: Enables the DAR function. This is used to calculate dielectric absorption ratio (ratio of the
measurement at 1 minute to the measurement at 30 seconds.)
5th Press: Exit timed test mode.

5882A
11
When , DAR, or PI is activated, pressing the TEST button will start the test. The LCD displays the
measurement along with a timer showing the remaining time in the test. The test automatically ends
when the timer reaches 0.
The following parameters indicate acceptable insulation:
DAR > 1.25
PI > 2
Backlight
Press jto turn on the backlight. Press again to turn off the backlight.
Note: The backlight will automatically shut off after 1 minute.
Standy Mode
To extend battery life, the megohmmeter will automatically switch to standby mode after approximately
5 minutes of inactivity. To restore normal operation, press any button or rotate the selector.
Using the Features (cont’d)

12
Indicators
The Indicator Table provides information for interpreting the battery status indicator, results of the
insulation test, and the tones produced by the speaker.
Indicator Table
Feature Indication Explanation
Battery
Status
No display Good battery.
Flashing
Battery life is limited. Lo Bat will also appear on the screen. Unit
will soon shut down automatically.
BAT
The battery symbol, the word BAT, and the approximate percent of
battery left will appear on start up.
Insulation
Resistance
Test
OL The insulation resistance is greater than 2.0 GΩ.
uThe insulation resistance is greater than 1.1 GΩ.
– – – –
The insulation resistance is less than:
• 10 kΩ at 50 V
• 20 kΩ at 100 V
• 50 kΩ at 250 V
• 100 kΩ at 500 V
• 200 kΩ at 1000 V
tThe insulation resistance is less than 70 kΩ.

5882A
13
Operation
Electric shock hazard:
Contact with live circuits could result in severe injury or death.
Electric shock hazard:
Do not contact the test lead tips while the continuity function (20 Ω) is selected.
Failure to observe this warning could result in severe injury or death.
1. Set the selector to the proper setting and connect the test leads to the meter.
2. Test the unit on a known functioning circuit or component.
• If the unit does not function as expected on a known functioning circuit, replace the batteries.
• If the unit still does not function as expected, send the unit to Greenlee for repair.
3. Take the reading from the circuit or component to be tested.

14
Insulation Measurements
Insulation measurement results can be affected by the impedances of additional circuits
connected in parallel or by transient currents. Do not start any measurement while the
symbol is displayed.
1. Set the rotary switch to one of the MΩ positions. The test voltage depends on the voltage of the
installation to be tested.
2. Use the leads to connect the system to be tested to the instrument's terminals. The system under
test must be powered down and discharged. When testing insulation, the typical connection is
negative (black) lead to conductor and positive (red) lead to ground or the outer insulation of the
device under test.
3. (Optional) Press the ubutton to display the current or the elapsed time. (You can also do this
during the measurement.)
4. Press the TEST button and hold it down until the displayed measurement is stable. Note that if the
instrument detects a voltage greater than 25V in the system under test, pressing the TEST button
has no effect because the test will be prohibited. (An error screen will appear.)
VDC
100V
V
kΩ
MR
OFF
Ω
250V
500V
1000V
50V
MΩ

5882A
15
Insulation Measurements (cont’d)
5. The resistance measurement is displayed on the LCD's main display area and on the bar graph.
The secondary display area indicates the test voltage generated by the instrument.
The symbol indicates that the instrument is generating a hazardous voltage (> 70V).
6. At the end of the measurement, release the TEST button. The instrument stops generating the test
voltage and discharges the device being tested. The symbol is displayed until the voltage on
the system under test has fallen below 70V.
Note: Do not disconnect the leads and do not start any measurement while the symbol
is displayed.
When you release the TEST button, the measurement results remain displayed until the next
measurement, or the HOLD button is pressed, or the instrument is turned OFF.
M
G V
M

TEST
> 1s

16
Continuity Measurement
Continuity measurement measures a low resistance (< 10 or 100 Ω depending on the current)
at a high current (200 or 20 mA)
Note: A current of 20 mA reduces the power consumption of the instrument, increasing
its battery life. However, standard IEC 61558 requires 200 mA current for continuity testing.
If an external voltage >15V is detected in the system under test during the continuity
measurement, the instrument is protected without a fuse. The continuity measurement is
stopped and the instrument reports an error until the voltage disappears.
Lead Compensation
Before checking continuity, you should compensate for the resistance of the measurement
leads. This ensures that the resistance measurement excludes the resistance in the leads.
To do this, set the rotary switch to Ω. Then short-circuit the measurement leads and
press the button for >2 seconds.
The display changes to zero and the symbol is displayed. The resistance of the leads will be
systematically subtracted from all continuity measurements. If the resistance of the leads is >10Ω,
there is no compensation. The compensation remains in memory until the instrument is turned OFF.
If the leads are changed with no change of compensation, the display may become negative. The
instrument reports that the compensation must be redone by displaying a blinking symbol.
To remove the compensation of the leads, leave the leads open and press the button for >2
seconds. The LCD displays the resistance of the leads and the symbol goes off.
0
0
M mA

5882A
17
Continuity Measurement (cont’d)
Continuity Measuring
1. Set the rotary switch to Ω.
2. Press the ubutton to display the measurement current. The measuremnt current appears blinking
on the LCD. You can change the current by pressing the ubutton
3. Use the leads to connect the instrument to the system to be tested. The system to be tested must
be powered down.
The instrument displays the resistance and the current used in the test. To obtain a continuity value per
standard IEC 61557:
1. Take the measurement at 200 mA and note its
value, R1.
2. Reverse the leads and note the value, R2.
3. Calculate the mean:
R1+R2
R=
2
M mA
R
M mA
100V
V
kΩ
MR
OFF
Ω
250V
500V
1000V
50V
MΩ
OFF

18
Resistance Measurement
Resistance measurements up to 1000 kΩ are made with a low current
1. Set the rotary switch to kΩ.
2. Connect the system to be tested to the instrument. The device to be tested must be powered down.
3. The instrument displays the results.
100V
V
kΩ
MR
OFF
Ω
250V
500V
1000V
50V
MΩ
k

5882A
19
Configuration Settings
Pressing and holding the SET-UP button for longer than 2 seconds lets you change
configuration settings on the instrument. You can then use the pand ubuttons to
scroll through and modify parameters.
In Set-Up mode, the pbutton performs the following functions:
Indicator Table
1st press
on p
The alarm buzzer is active. To deactivate it:
1. Press u. On will blink to indicate it is selected.
2. Press pto change the setting to OFF.
3. Press uto 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.
2nd press
on pP
Automatic switching to standby mode is activated. To deactivate it:
1. Press uto select OFF (the setting blinks).
2. Press pto change the setting to On.
3. Press uto 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 pDisplays the instrument model number.
4th press
on pDisplays the instrument firmware version.
5th press
on pDisplays the instrument hardware version.
6th press
on pReturn to the first press.

SET-UP
> 2s

20
Viewing Alarms
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 continuity
measurement is less than 2Ω simply by listening, without looking at the display. You can
similarly check insulation quality.
ALARM <
M
ALARM
k
M
>