METREL MI 3399, Instruction Manual With Exercises

Page: 210 / 272

PAT Appliances & Machines Safety Trainer AD 3
– MI 3399
210
2 Safety warnings

Only qualified personnel who are familiar with the demoboard and measuring
instruments may use PAT Demoboard!

Use only original demonstration tables provided by the manufacturer!

The PAT Demoboard must be considered as a real piece of electrical equipment. The
simulated faults are real ones. Despite the fact that the simulated leakage currents
are kept at relatively low levels it is strictly forbidden to touch any of the accessible
metal parts inside the simulation area during the demonstration!

The PAT Demoboard will work only if connected to a properly earthed TN or TT outlet.
The Ready lamp must lit green for normal operation of the Demoboard.
If red light is blinking and buzzer sounds immediately disconnect the demoboard from the
mains and check the supply connections!

Special care must be taken if performing HV (withstanding) tests. All safety measures
must be considered as if testing real electrical equipment.

Always check that the current of HV test equipment is limited to a low level (<3.5mA)
when performing withstanding tests on PAT Demoboard.

If the equipment is not used in a manner specified by the manufacturer, the protection
provided by the equipment may be impaired.

Use of Demonstration board in a way not specified in this User Manual could damage
the board.

Do not use the Demonstration board in case of any damage noticed!

Only an authorised person may carry out servicing of Demonstration boards!