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20
Megohmmeter Model 1015
5. MAINTENANCE
The device does not contain any parts that can be replaced by untrained
or unaccredited personnel. Any unauthorized work or part replacement
with equivalents may seriously compromise safety.
WARNING:
•
For maintenance use only specified replacement parts.
• To avoid electrical shock, do not attempt to perform any servicing unless
you are qualified to do so.
• To avoid electrical shock and/or damage to the instrument, do not get
water or other foreign agents into the case. Turn the instrument
OFF
and
disconnect the unit from all the circuits before opening the case.
5.1 BATTERY TEST
Check that the batteries are in good working condition prior to using the
instrument.
With the switch in the OFF position, press the yellow button:
• The batteries are good if the needle is in the green zone.
• The batteries need replacement if the needle is in the red zone or lower.
The average battery life is:
• 1000 insulation measurements of 10 s on the M
Ω
-500 V range for R = 500 k
Ω
.
• 200 insulation measurements of 10 s on the M
Ω
-1000 V range for R = 1 M
Ω
.
• 1500 continuity measurements of 10 s on the 10
Ω
range.
NOTE:
The instrument will operate correctly with a battery voltage
range of (4.5 to 6.5) V.
5.1.1 Battery and Fuse Replacement
0.1
0.5
1
5 10
50 100
500
1000
0
1
2
3
4
5
6
7
8
9
10
0
100
200
300
400
500
600V
600V
-
+
6
!
M
Ω
RED zone or below:
Battery needs to be replaced
GREEN zone:
Battery is good