INSTRUCTION SHEET
RHEOSTAT - wire wound, rotary, 80w 3.5ohm
Cat: EM3080-001 PSSC type
DESCRIPTION:
The IEC ROTARY RHEOSTAT is a general purpose high power rotary rheostat mounted
on a solid bench stand. IEC manufactures many different types of rotary rheostats from
small 3 watt instrument types through to large 100 watt ceramic models.
EM3080-001 rotary rheostat
Physical size: 110x130x140mm LxWxH
Weight: 0.75 kg
When used as a RHEOSTAT:
Although 3x connections are provided on the instrument, one end of the resistance winding
is not used. The other two terminals are connected into a circuit and, by rotating the knob,
the wiper moves over the winding and the resistance of winding can be changed from zero
ohms up to the maximum resistance of approximately 3.5 ohms.
When used as a POTENTIOMETER:
Three terminals are provided on the instrument so that it may be connected as a
potentiometer. A voltage may be connected across the whole winding and a proportion of
that voltage from zero to maximum may be ‘tapped off’ as required by rotating the knob.
I N D U S T R I A L
E Q U I P M E N T
6 1 - 6 5 M c C l u r e S t . T h o r n b u r y .
T e l : 6 1 ( 0 ) 3 9 4 9 7 2 5 5 5
e m 3 0 8 0 - 0 0 1 . d o c
&
C O N T R O L
3 0 7 1
F a x :
P T Y . L T D .
M e l b o u r n e . A u s t r a l i a
6 1 ( 0 ) 3 9 4 9 7 2 1 6 6
2 - N o v - 0 5
1
INSTRUCTION SHEET
Care to be taken:
Supervision is required when using this instrument. When operating around its maximum
rating, this device can become very hot because it must dissipate around 80 watts of heat.
The winding at the rear of the instrument is not covered. This permits inspection of the
construction and operation, but be very careful not to touch the resistance winding which
might be very hot and might have high voltages applied.
Specifications:
Resistance of the winding: approx.3.5 Ohms
Maximum voltage to be applied across the winding: 16 Volts.
Maximum current to pass through the winding: 5 Amps
Maximum power dissipation of the instrument:
80 watts.
Connection terminals: 3x IEC type, 4mm socket head, spin free design.
Designed and manufactured in Australia
I N D U S T R I A L
E Q U I P M E N T
6 1 - 6 5 M c C l u r e S t . T h o r n b u r y .
T e l : 6 1 ( 0 ) 3 9 4 9 7 2 5 5 5
e m 3 0 8 0 - 0 0 1 . d o c
&
C O N T R O L
3 0 7 1
F a x :
P T Y . L T D .
M e l b o u r n e . A u s t r a l i a
6 1 ( 0 ) 3 9 4 9 7 2 1 6 6
2 - N o v - 0 5
2