Megger BM220 Bruksanvisning
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Insulation &
Continuity Testers
M BM220 Series
User Guide
Guide de l’utilisateur
Gebrauchsanleitung
Guía del Usuario
SAFETY WARNINGS
✱ Safety warnings and precautions must be read and
understood
before the instrument is used. They must be
observed during use.
✱ The circuit under test must be switched off, de -
energised and isolated
before Insulation or Continuity
tests are made.
✱ The test button must not be held down while connecting
the test leads or while changing ranges. (May cause
‘
Live Circuit Warning‘ to become inoperable).
✱ The Voltage warning does not function if OFF or
is selected.
✱ During an insulation test, connections must not be
touched.
✱ After insulation tests, capacitive circuits must be allowed
to discharge
before disconnecting the test leads.
✱ Test leads, prods and crocodile clips must be in good
order; clean, and with no broken or cracked insulation.
✱ Replacement fuses must be of the correct size, type and
rating.
NOTE
THE INSTRUMENTS MUST ONLY BE USED BY SUITABLY TRAINED AND COMPETENT
PERSONS.
Symbols used on the instrument:
Caution: risk of electric shock
Caution: refer to accompanying notes
Equipment protected throughout by Double Insulation (Class
II)
Equipment complies with relevant EU Directives
All variants of the BM220 series of instruments have the following features:
✷ 1mA Insulation test current
✷ 200mA Continuity test with lead zeroing facility
✷ Combined curved Analogue / Digital display
✷ Continuity Beeper
✷ Auto shut off
✷ Display Back light
✷ Low Battery indication
In addition, particular models have the following features:
OPERATION
Preliminary Test lead check
1. Before each use of the instrument, visually inspect the test leads, prods
and crocodile clips to confirm that their condition is good, with no damaged
or broken insulation.
2. Check continuity of the test leads by firmly shorting the leads together
and read the test lead resistance. measurement directly from the display.
Backlight operation
1. Turn the instrument backlight ‘On’ by selecting the position.
2. When the backlight is activated, select the desired test position.
3. On completion, select the ‘
OFF’ position to de-activate the backlight and
conserve battery life.
Continuity Testing
1. Turn the instrument ‘On’ by selecting the Ω range.
2. If required, zero test lead resistance by firmly shorting both leads together,
wait for the reading to stabilise and press the test button. Display of the
symbol confirms lead zeroing.
Note: Lead zeroing cancels each time
the instrument is switched off, or
Auto shut off operates.
3. Connect the test probes to the isolated circuit under test.
4. The display shows the resistance value. (Maximum 99,9Ω)
5. On completion switch to ‘
OFF’ position. Alternatively auto shut off operates
after 5 minutes of instrument inactivity.
Continuity Beeper On the position, a continuous beep note sounds when
the test leads make contact with resistance less than 5W. If contact is
maintained, beeping ceases after a few seconds and the resistance value is
displayed. Resistance greater than 5W is indicated by an intermittent beep
note.
BM221 BM220 BM223 BM224 BM227
* 250 Volt Insulation √√
* 500 Volt Insulation √√√√√
* 1000 Volt Insulation √√
* Default Voltmeter √√√ √
* Visual Voltage Warning √
Leads
Nulled
Low Battery
Fuse
Ruptured
Refer to Safety Warnings before using the instrument
DISPLAY FEATURES
High
Voltage
1000V
100
200
100 M
300
10 M
400
1 M
V
100k
500
0
1 G
Default
Voltage
Produktspecifikationer
| Varumärke: | Megger |
| Kategori: | mätning |
| Modell: | BM220 |
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