Major tech MT390 - Safety and Warnings; International Safety Symbols; Technical Terminology; Critical Operational Warnings

4
Warning!
1-Safety Considerations
You must read and completely understand the Safety Considerations part of this manual before using the
instrument.
This manual contains instructions regarding the safe use and the proper functioning of the instrument. If not
complied with, the user could be exposed to danger and the instrument to possible damage.
The term as used in this manual defines a condition or a procedure which could lead to a serious
injury or accident. The term defines a condition or action which could lead to the instrument being
rendered defective during the testing process.
• Make sure to read and fully understand the instruction contained within this manual prior to use.
• This instrument is not intrinsically safe therefore do not use the instrument in hazardous environments.
• In order to prevent fire and/or electrical shock, do not use the instrument in wet, damp or highly humid
environments.
• Prior to use, check if the instrument functions correctly. If any symptoms/symbols of malfunction or abnormalities
are indicated, do not use and inform MTi Instruments.
• Users who could be exposed to voltages in excess of the extra low band (50V ac or 120V dc) should be
competent and be aware of the requirements of GS 38 regarding the use of the instrument and the associated
leads and probes etc.
• Make sure your fingers holding the test probes are positioned behind the safety lines of the test probes.
• DO NOT OPEN THE INSTRUMENT.
• If the internal fuse (protective device) operates, replace with a device of the same type and rating. If it operates
again seek professional advice. DO NOT REPLACE FUSE AND TRY AGAIN.
• When carrying out the “dead tests” ensure prior to connection of the instrument leads the circuit under test
has been confirmed “dead” and secured in the OFF position using appropriate methods.
• Battery condition is indicated by a beep. Check and replace if necessary.
• Do not test an electrical circuit or systems where the voltage is in excess of 550V.
• Ensure at all times the leads are in compliance with GS 38 (as supplied) and not damaged.
1.1-International Symbols
1.2-Terminology
WARNING
CAUTION
1.3-Warnings
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WARNING!
CAUTION! Voltage present
Earth
Double Insulation (Class II insulation)
Fuse
Prohibited to use for the Electrical System which uses the voltage above 550V
Conformity to European Standards
>550V
Multifunction Tester User Manual