MI 3288 EI Tester Safety and operational considerations
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2 Safety and operational considerations
2.1 Warnings and notes
In order to maintain the highest level of operator safety while carrying out various tests and
measurements Metrel recommends keeping your MI 3288 instruments in good condition and
undamaged. When using the instrument, consider the following general warnings:
▪ The symbol on the test equipment means »Read the Instruction manual with
special care for safe operation«. The symbol requires an action!
▪ If the test equipment is used in a manner not specified in this Instruction manual,
the protection provided by the equipment could be impaired!
▪ Read this Instruction manual carefully, otherwise the use of the test equipment
may be dangerous for the operator, the test equipment itself or for the tested
object!
▪ A lethal voltage can exist between the ground electrode under test and a remote
ground!
▪ Do not use the test equipment or any of the accessories if any damage is noticed!
▪ Consider all generally known precautions in order to avoid risk of electric shock
while dealing with hazardous voltages!
▪ Do not connect the test equipment to a mains voltage different from the one
defined on the label adjacent to the mains connector, otherwise it may be
damaged.
▪ Service intervention or adjustment is only allowed to be carried out by competent
authorized personnel!
▪ All normal safety precautions must be taken in order to avoid risk of electric
shock while working on electrical installations!
▪ Do not use the equipment in a wet environment, around explosive gas, vapour.
▪ Only adequately trained and competent persons may operate the equipment.
▪ Do not connect any voltage source on GUARD (C1) terminal. It is intended only for
connection of GUARD lead.
2 wire test accessory:
▪ Maximum allowed input voltage between HV+ and HV- test terminals on test
connector is 1000 V! (CAT II 1000 V)
4 wire test accessories:
▪ Maximum allowed input voltage between C1 and C2 or H and E test terminals on
test connector is 1000 V! (CAT II 1000 V)
▪ Maximum allowed input voltage between any other combination of test terminals
on test connector is 300 V! (CAT IV 300 V)
Markings on the instrument:
Read the Instruction manual with special care to safety operation«. The
symbol requires an action!
Mark on your equipment certifies that it meets requirements of all
subjected EU regulations.
