MI 3299 HV DEMO BOX 10 kV
Introduction
7
1.2 Warnings
In order to reach the highest level of operator’s safety while carrying out various
measurements and tests using the HV Demo Box 10kV, as well as to ensure that the
test equipment remains undamaged, it is necessary to consider the following warnings:
MEANING OF SYMBOLS
Symbol on the instrument means “Read the User Manual with special
care!”.
Symbol on the instrument means “Hazardous voltage higher than 70 V
may be present at
the test terminals!”.
GENERAL PRECAUTIONS
● If the demo box is used in a manner not specified in this Users Manual, the
protection provided by the equipment may be impaired!
● Do not use the demo box and accessories, if any damage is noticed!
● Service intervention procedure can be carried out only by a competent and
authorized person!
● The demo box is made just for indoor operation (IP 20)!
● Measurements on the breakdown measurements segment cause high electro-
magnetic disturbances and can influence to the operation of the other
electronic devices!
WORKING WITH THE DEMO BOX
● Use only standard or optional test accessories supplied by your distributor!
● Do not connect the demo box to the test voltage higher than 11 kV DC, to
prevent any damage to the demo box!
● Do not connect the demo box to the instruments with short circuit current
more then 5,5 mA, to prevent any damage to the demo box! All
Metrel’s HV
insulation testers have short circuit current limited below 5 mA.
HANDLING WITH CAPACITIVE TEST
● Note that 40 nF charged to 1 kV or 8 nF charged to 5 kV or 4 nF charged to 10
kV are hazardous live!
1.3 Standards applied
The MI3299 HV DEMO BOX 10kV is manufactured and tested according to the
European safety standard EN61010-1.
