Gossen Metrawatt Metrahit Iso Insulation measuring device, CAT III 600 V Metrahit Iso User Manual
Product codes
Metrahit Iso
GMC-I Gossen-Metrawatt GmbH
9
Safety Warnings
• Make certain that the measurement cables are in flawless
condition, e.g. no damage to insulation, no interruptions in
cables or plugs etc.
cables or plugs etc.
• No measurements may be made with this instrument in
electrical circuits with corona discharge (high-voltage).
• Special care is required when measurements are made in HF
electrical circuits. Dangerous pulsating voltages may be
present.
present.
• Measurements under moist ambient conditions are not
permitted.
• Be absolutely certain that the measuring ranges are not
overloaded beyond their allowable capacities. Limit values are
included in chapter 8; “Technical Data” in the table entitled
“Measuring Functions and Measuring Ranges” in the
“Overload Capacity” column.
included in chapter 8; “Technical Data” in the table entitled
“Measuring Functions and Measuring Ranges” in the
“Overload Capacity” column.
• The multimeter may only be operated with installed batteries or
rechargeable batteries. Dangerous currents and voltages are
otherwise not indicated, and the instrument may be damaged.
otherwise not indicated, and the instrument may be damaged.
• The instrument may not be operated if the fuse cover or the
battery compartment lid has been removed, or if its housing is
open.
open.
• The input for the current measuring range is equipped with a
fuse link.
Maximum permissible voltage for the measuring circuit (= rated
voltage of the fuse) is 1000 V AC/DC.
Use specified fuses only (see page 61)! The fuse must have a
breaking capacity of at least 30 kA.
Maximum permissible voltage for the measuring circuit (= rated
voltage of the fuse) is 1000 V AC/DC.
Use specified fuses only (see page 61)! The fuse must have a
breaking capacity of at least 30 kA.
Repair and Parts Replacement
When the instrument is opened, voltage conducting parts may be
exposed. The instrument must be disconnected from the
measuring circuit before the performance of repairs or the
replacement of parts. If repair of a live open instrument is
required, it may only be carried out by trained personnel who are
familiar with the dangers involved.
exposed. The instrument must be disconnected from the
measuring circuit before the performance of repairs or the
replacement of parts. If repair of a live open instrument is
required, it may only be carried out by trained personnel who are
familiar with the dangers involved.
Defects and Extraordinary Strains
If it may be assumed that the instrument can no longer be
operated safely, it must be removed from service and secured
against unintentional use.
Safe operation can no longer be relied upon:
operated safely, it must be removed from service and secured
against unintentional use.
Safe operation can no longer be relied upon:
• If the device demonstrates visible damage,
• If the instrument no longer functions, or if malfunctioning
occurs,
• After long periods of storage under unfavorable conditions,
e.g. humidity, dust or extreme temperature (see “Ambient Con-
ditions” on page 59).
ditions” on page 59).