3B Scientific Mains Coil with Connecting Lead (115 V, 50__60 Hz) - Manual (Page 3)

3B SCIENTIFIC ® PHYSICS
1
Mains Coil with Connecting Lead U8497420
Instruction sheet
10/07 SP/ALF
A Mains coil for mains voltage 115 V
B Mains coil for mains voltage 230 V
1 Mains
lead
2 Air vents
3 Mains switch
4 Fuse
1. Safety instructions
• The coil operates at mains voltage. Depending
on the set-up of the transformer, it may be pos-
sible to come into contact with dangerous volt-
ages at the secondary coil.
• The resulting magnetic fields can cause damage
to or even destroy electrical/electronic compo-
nents and equipment or electromagnetic stor-
age media. Such items must be kept away from
the coil by at least the amount specified for
safety.
• The safety of operators and of the mains coil
itself can only be guaranteed when it is used ac-
cording to the instructions.
• Do not exceed the maximum voltage over any
length of time.
• If the coils should become overloaded, they
must be allowed to cool before switching on the
current again.
• Do not cover air vents.
• Disconnect the coil from the mains before re-
placing the fuse.
• Any modifications to the transformer set-up
must be made with the primary voltage
switched off.
• Never apply voltage to the mains coils without
an iron core inside.
• Always use safety cables for experiments.
• Do not turn on the mains coil until the experi-
ment set-up is complete.
• Do not open the case.
• Do not allow the equipment to come into con-
tact with liquids.
• The coil may be operated without the core
being closed by a yoke (e.g. in Thomson’s ring
experiment) for no more than 10 seconds.
2. Description
The mains coil with connecting lead is intended for
use as the primary coil for the demountable trans-
former D.
Coils are made of impact-resistant plastic, safe to
touch. Number of turns, maximum current for long-
term operation, effective resistance and inductance
are specified on the case of the coil.
2.1 Accessories
Transformer Core D U8497180
Metal Ring for Thomson’s experiment U8497470
Coils
Item Cat. no.
Winding
turns
Tap(s)
Low Volt-
age Coil D
U8497410 72 6/30/54/66/72