Textron Greenlee 5878 Manuale utente
Chipsmall Limited consists of a professional team with an average of over 10 year of expertise in the distribution
of electronic components. Based in Hongkong, we have already established firm and mutual-benefit business
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mainly focus on the distribution of electronic components. Line cards we deal with include
Microchip,ALPS,ROHM,Xilinx,Pulse,ON,Everlight and Freescale. Main products comprise
IC,Modules,Potentiometer,IC Socket,Relay,Connector.Our parts cover such applications as commercial,industrial,
and automotives areas.
We are looking forward to setting up business relationship with you and hope to provide you with the best service
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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.
5878 • 5880 • 5882Megohmmeters
Megóhmetros
Megohmmetres
99932857 © 2009 Greenlee Textron Inc. IM 1423 REV 2 3/09
2
Description
The Greenlee 5878, 5880 and 5882 Megohmmeters are intended to test insulation, detect voltage
and verify continuity. The megohmmeters automatically discharge the tested object when the test is
completed. In addition, the 5882 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 5878, 5880, and 5882 Megohmmeters.
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 Textron 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 Textron Inc.
KEEP THIS MANUAL
5878 • 5880 • 5882
3
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
4
Important Safety Information
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.
5878 • 5880 • 5882
5
Important Safety Information
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:
The fuse is an integral part of the overvoltage protection. When fuse replacement is necessary, refer
to “Specifications’ for the correct type, size and capacity. Using any other type of fuse will void the
overvoltage protection rating of the unit.
Failure to observe this warning 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.
6
Identification
All Models
1. Positive (+) Input Terminal
2. Negative (–) Input Terminal
3. Display
4. Insulation Resistance Test Button
5. Selector
Models 5880 and 5882 Only
6. Alarm Button
7. uSelect a Parameter or Value
8. pChange the Value
9. jBacklight
Model 5882 Only
10. TIMER
1 2
3
4
5
9
6
7
8
10
12
13
16
17
11
34
14 2018–19
15
29
21–24
26–28
25 30313233
5878 • 5880 • 5882
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Identification (cont’d)
Display Icons
11. –Polarity indicator
12. Insulation resistance test in progress
13. tInsulation resistance is less than 50 kΩ
14. yBar graph element
15. uInsulation resistance is greater than 2 GΩ
16. Timer is active
17. ALARM Alarm is on, or programming is in progress
18. < Alarm will trigger if measured value is less than the setpoint
19. > Alarm will trigger if measured value is greater than the setpoint
20. 00:00 Timekeeper display or
0000 Setpoints
21. G 109
22. M 106
23. k 103
24. Ω Ohms
25. OL Overload (insulation resistance is greater than 2 GΩ or voltage is greater than 600 V)
26. V Volts
27. AC Alternating Current
28. DC Direct Current
29. Battery status
30. Auto power off is inactive
31. Speaker is active
32. Lead resistance is compensated
33. > 25 Circuit voltage is greater than 25 volts; insulation resistance test
(yellow button) is disabled
34. Read the instruction manual
8
Identification (cont’d)
Other Symbols
BAT Insufficient battery power
(flashing) Lead resistance is compensated incorrectly
and
FUS Replace the fuse
---- Insulation resistance is less than:
•50kΩonthe250Vrange
•100kΩonthe500Vrange
•200kΩonthe1000VrangeSymbols on the Unit
Warning—Read the instruction manual
Fuse
Double insulation
Battery
Recycle product in accordance with manufacturer’s directions
5878 • 5880 • 5882
9
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•will appear on the display.
See the Indicator Table for results of the insulation test.•Alarm (Models 5880 and 5882 only)
Press ALARM to turn the alarm on and review the setpoints. Press again to turn the alarm off.
Note: When the alarm function is active, a continuous tone and flashing ALARM on the display indicate
that the measured value matches the alarm setpoint.
Alarm Setpoints (Models 5880 and 5882 only)
1. Press and hold ALARM to review the setpoints.
2. Press pand uto change the setpoints. Press and hold ALARM to save the settings.
Default settings are:•> 0.25 MΩ (MΩ – 250 V position)
> 0.50 MΩ (MΩ – 500 V position)
> 1.00 MΩ (MΩ – 1000 V position)
< 20.00 kΩ (400 kΩ position)
< 2.00 Ω (20 Ω position)
Minimum/Maximum settings are:•< or > 0.05 MΩ / 2000 MΩ (MΩ – 250 V position)
< or > 0.10 MΩ / 2000 MΩ (MΩ – 500 V position)
< or > 0.2 MΩ / 2000 MΩ (MΩ – 1000 V position)
< or > 0 Ω / 399.9 kΩ (400 kΩ position)
< or > 0 Ω /19.99 Ω (20 Ω position)
Note: The megohmmeter will correct any setting that is entered improperly.
Timed Insulation Resistance Test (Model 5882 only)
1. Press TIMER. The icon and a timekeeper (0:00) will appear on the display.
2. Press and release the yellow test button to start the timer and initiate the test voltage.
The will appear on the display and the timekeeper will show the elapsed time.
3. Make a note of the reading on the display when the speaker sounds
(after 30 seconds, 1 minute, and 10 minutes).
4. Press the yellow test button to terminate the test.
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