A Guide to Safe Use of Mains Powered Test Frames
2.2 Ensure adequate ventilation
To prevent overheating, ensure that the all the air ventilation vents on the test frame are not
obstructed. Where a Console is fitted, it is cooled by an internal fan; make sure that when
fitted to the test frame the Console air vents are not obstructed.
3. Check the setting for the electrical supply
Connecting a mains powered test frame to the wrong supply will almost certainly cause
extensive damage to the equipment. Mecmesin test frames must only ever be connected to a
mains power installation that has a fully installed earthing system.
CONNECTING A MAINS POWERED TEST FRAME TO AN ELECTRICAL POWER OUTLET
WITHOUT AN EARTH CONNECTION IS EXTREMELY DANGEROUS AND COULD LEAD TO
A RISK OF ELECTROCUTION.
The combined mains input socket and voltage selector can be
found on the rear panel of single-column stands and on the right
hand side of twin-column force stands. It is on the rear of Vortex
stands. Check that the voltage selector is set correctly for your supply.
The voltage that is selected is the one that appears the correct way
up when looking at the socket.
It is possible to change the voltage selection by
turning off the power and removing the line cord (if
fitted). The fuse cartridge can now be withdrawn.
Check that both fuses of the correct rating are
present, and refit the fuse cartridge so the desired
voltage marking is the correct way up.
Combined mains switch
and voltage selector. This
unit is set to 220-240V ac
To change the operating voltage, remove
the fuse cartridge, turn it over and re-fit
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