Amprobe Telaris-ISO-PRO Insulation-Tester - Manual (Page 28)

Built-in Fuse
The built-in fuse protects the Low Ohm function if the instrument is connected to voltage
during running measurement. This fuse may also trip if voltages > 600 V AD/DC are connected
to the measurement instrument.
WARNING
• The fuse replacement may only be carried out by authorised staff.
• Exclusively use fuses of voltage, current and breaking capacity values in compliance with
the technical data section.
• Using temporary fuses, in particular short-circuiting fuse holders is prohibited and can cause
instrument destruction or serious bodily injury of operator.
• Prior to fuse replacement disconnect the instrument from all measurement circuits and
test leads.
Error Message after Fuse Tripping
If the message 'Fus' appears on the LCD during the measurement in the Low Ohm function,
the fuse has tripped and must be replaced. Please contact our repair service department.
Description of Appropriate Fuse
Fuse Type F 500 mA / 500 V, 6.3 x 32 mm
Calibration Interval
We suggest a calibration interval of one year. If the instrument is used very often or if it is
used under rough conditions we recommend shorter intervals. If the instrument is used few
times only the calibration interval can be extended on to 3 years.
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