© PCE Instruments
20
4.2
Replacing the Fuses
To avoid electric shock, disconnect the test leads from any source of voltage
before removing the meter cover.
• Disconnect the test leads from the meter.
• Remove the protective rubber holster.
• Remove the battery cover (two “B” screws) and the battery.
• Remove the six “A” screws securing the rear cover.
• Gently remove the old fuse and install the new fuse into the holder.
• Always use a fuse of the proper size and value (0.5A/1000V fast blow for the 500mA range,
10A/1000V fast blow for the 20A range
• Replace and secure the rear cover, battery and battery cover.
To avoid electric shock, do not operate your meter until the fuse cover is in
place and fastened securely.
5
Technical specifications
Test voltage / test
current
Measuring
range
Resolution
Accuracy
50V 1-
mA @ 50 kΩ
0.01 ... 5 MΩ
0.0001 MΩ
± (4 % + 20 digits)
5 ... 50 MΩ
0.001 MΩ
± (4 % + 20 digits)
50 ... 500 MΩ
0.01 MΩ
± (4 % + 20 digits)
500 ... 1000 MΩ
0.1 MΩ
not specified
125V / 1-
mA @ 125 kΩ
0.01 ... 5 MΩ
0.001 MΩ
± (2 % + 20 digits)
5 .... 50 MΩ
0.001 MΩ
± (2 % + 20 digits)
50 ... 500 MΩ
0.01 MΩ
± (3 % + 20 digits)
500 .... 5000 MΩ 0.1 MΩ
± (4 % + 20 digits)
250V / 1-
mA @ 250 kΩ
0.01 ... 5 MΩ
0.0001 MΩ
± (2 % + 20 digits)
5 ... 50 MΩ
0.001 MΩ
± (2 % + 20 digits)
50 ... 500 MΩ
0.01 MΩ
± (3 % + 20 digits)
500 ... 5000 MΩ
0.1 MΩ
± (4 % + 20 digits)
500V / 1-
mA @ 500 kΩ
0.01 ... 5 MΩ
0.0001 MΩ
± (2 % + 20 digits)
5 ... 50 MΩ
0.001 MΩ
± (2 % + 20 digits)
50 ... 500 MΩ
0.01 MΩ
± (3 % + 20 digits)
500 ... 5000 MΩ
0.1 MΩ
± (4 % + 20 digits)
1000V / 1-mA @ 1000
kΩ
0.01 ... 5 MΩ
0.0001 MΩ
± (2 % + 20 digits)
5 ... 50 MΩ
0.001 MΩ
± (2 % + 20 digits)
50 ...
500 MΩ
0.01 MΩ
± (3 % + 20 digits)
500 ...
5000 MΩ
0.1 MΩ
± (4 % + 20 digits)
Short circuit current
<1.5-mA
Summary of Contents for PCE-ITM 20
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