3B SCIENTIFIC Franck-Hertz-Experiment Manual Del Usuario página 7

3B SCIENTIFIC ® PHYSICS
Power Supply Unit for Franck-Hertz Experiment (230 V, 50/60 Hz)
Power Supply Unit for Franck-Hertz Experiment (115 V, 50/60 Hz)
1012819 (230 V, 50/60 Hz)
1012818 (115 V, 50/60 Hz)
Instruction sheet
01/14 ALF
The apparatus conforms to the safety require-
ments for electrical equipment for measurement,
control and laboratory use of DIN EN 61010 part
1 and is classified as belonging to protection
class I. It is intended for operation in dry rooms
that are suitable for electrical equipment or instal-
lations.
Safe operation of the apparatus is guaranteed
with correct handling. However, safety is not
guaranteed if the apparatus is handled improp-
erly or carelessly. If it is to be expected that safe
operation is impossible (e.g., in case of visible
damage), the apparatus is to be rendered inop-
erative immediately and to be safeguarded from
unintentional use.
In schools and training institutions, operation of the
1. Safety instructions
apparatus is to be responsibly supervised by trained
personnel.
• Before first use, check if the apparatus is
designed for local line voltage.
• Before start of the experiment, check the
apparatus for damage.
• In case of visible damage or functional
anomalies, render the apparatus inoperative
immediately.
• The instrument may only be connected to the
mains via a socket that has an earth connec-
tion.
• Allow only trained electronics specialists to
open the apparatus.
1
1 Display
2 Rotary knob for heater
voltage
3 Heater voltage output
4 Cathode output
5 Control grid output
6 Rotary knob for control
voltage
7 Rotary knob for "minimum
accelerating voltage"
8 Accelerating voltage output
9 "Man(ual)"/"Ramp"
selector switch
10 Rotary knob for "maximum
accelerating voltage"
11 Output "accelerating volt-
age/10"
12 Ground socket
13 F/H signal output
14 Rotary knob for F/H signal
amplitude
15 F/H signal input
16 "Polarity of reverse bias"
selector switch
17 Rotary knob for reverse bias
18 Power switch (back side)