GMC-I Messtechnik GmbH
5
•
The instrument may only be used for current measurement in
power systems if the electrical circuit is protected with a fuse or a
circuit breaker with a rating of up to 20 A. In order to conform to the
CAT requirements, two fuse links have been fitted for the ranges
mA und A.
•
Be prepared for the occurrence of unexpected voltages at
devices under test (e.g. defective devices). For example,
capacitors may be dangerously charged.
•
Make certain that the measurement cables are in flawless
condition, e.g. no damage to insulation, no interruptions in
cables or plugs etc.
•
No measurements may be performed 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.
•
Measurements under moist ambient conditions are not per-
mitted.
•
Be absolutely certain that the measuring ranges are not
overloaded beyond their allowable capacities. Limit values
can be found in the “Measuring Ranges” table in chapter 4
„Operation“.
