Safety And Operational Considerations; Warnings And Notes - METREL MI 3122 Instruction Manual

MI 3122 Smartec Z Line-Loop / RCD

2 Safety and operational considerations

2.1 Warnings and notes

In order to reach high level of operator's safety while carrying out various tests and
measurements using Smartec Z Line-Loop / RCD, as well as to keep the equipment
undamaged, it is necessary to consider the following general warnings:
Warning on the instrument means »Read the Instruction manual with

special care to safety operation«. The symbol requires an action!
If the test equipment is used in a manner not specified in this user manual the

protection provided by the equipment might be impaired!
Read this user manual carefully, otherwise use of the instrument may be

dangerous for the operator, for the instrument or for the equipment under test!
Do not use the instrument and 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 use the instrument in supply systems with voltages higher than

600 V!
Service intervention or adjustment and calibration procedure is allowed to be

carried out only by a competent authorized person!
Use only standard or optional test accessories supplied by your distributor!

Consider that older and some of new optional test accessories compatible with

this instrument meet overvoltage category CAT III / 300 V! It means that
maximum allowed voltage between test terminals and ground is 300 V!
Instrument contains rechargeable NiCd or NiMh battery cells. The cells should

only be replaced with the same type as defined on the battery placement label
or in this manual. Do not use standard alkaline battery cells while power supply
adapter is connected, otherwise they may explode!
Hazardous voltages exist inside the instrument. Disconnect all test leads,

remove the power supply cable and switch off the instrument before removing
battery compartment cover.
All normal safety precautions have to be taken in order to avoid risk of electric

shock when working on electrical installations!
Notes related to measurement functions:
General
Indicator

irregular conditions on input terminals.
PASS / FAIL indication is enabled when parameters are set. Apply appropriate limit

value for evaluation of measurement results.
In case that only two of three wires are connected to test electrical installation, only

voltage indication between these two wires is valid.
means that the selected measurement can't be performed because of
6
Warnings and notes