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550 watts
500 watts
M8R
This model can be connected to any
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of the mains supply voltages shown on
the voltage selector 25, no matter wheth-
er the current is alternating or direct.
Having ascertained the mains voltage,
unscrew the small plug on the panel
of the voltage divider and insert it in
the hole opposite the number cor-
1,/1'
I
responding to the mains voltage.
E.g. :
The position of the plug cor-
responds to a mains voltage of
125 V.
Fuses
Before connecting up the projector, inspect the fuses in the projection
room's mains supply circuit and check that their rating is high enough
to withstand the current taken by the projector.
M8
When fitted with a 500-watt lamp, the projector consumes 550 VA, i.e.
approximately
550 watts
of electrical power.
If the projector is the only
apparatus drawing power from the circuit,· a fuse with a rating of at least
6 amperes will be sufficient.
However, if any other apparatuses or lights remain switched on while
the projector is in use, the additional current drawn by them will have
to be taken into account in calculating the fuse rating.
E.g. :
Voltage of mains supply
110 volts.
Power taken by M8 projectors 550 VA, or approx.
Power taken by other apparatuses in circuit.
Total power consumed. . . . . . . . . . . . . . . 1050 watts
The fuses fitted should have a minimum rating at least as high as the value
obtained when the total power consumed is divided by the mains supply
voltage.
In the example just quoted, a
10-ampere
fuse would be required
(1050 divided by 110).
M8R
The minimum fuse rating can be calculated in the same way as in the case
of the M8 projector.
The only alterations that must be taken into account are those that affect
the mains supply voltage and the projector's power consumption.
E.g. :
Voltage of mains supply
220 volts.
Total power consumed 1100 VA, or about
1100 watts.
The minimum fuse rating should be at least
5 amperes
(1100 divided
by 220). In this case, a standard 6-ampere fuse would prove sufficient.
3
VI
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