User's Manual

SE-9639 Franck-Hertz Experiment

012-14264A

1. On the DC Current Amplifier, connect the special BNC-to-BNC cable between the port on the amplifier marked “INPUT

SIGNAL” and the port on the Argon Tube Enclosure marked “A”.

2. On Power Supply II, (SE-9644) connect the positive terminal of the 12 V DC output to the grid-like electrode labeled

“G2” (red sockets) on the Argon Tube Enclosure (SE-9650) and connect the negative terminal of the 12 V DC output to

the terminal labeled “A” (black sockets) on the enclosure.

3. On Power Supply II, connect the positive terminal of the 100 V DC output on the power supply to the grid-like electrode

labeled “G2” (red sockets) on the Argon Tube Enclosure and connect the negative terminal of the power supply to the ter-

minal labeled “K” (black sockets) on the enclosure.

4. On Power Supply I (SE-6615), connect the positive terminal of the -4.5 – +30 V DC output on the power supply to the

grid-like electrode labeled “G1” on the Argon Tube Enclosure and connect the negative terminal of the power supply to

the terminal labeled “K” (black sockets) on the enclosure,

5. On Power Supply I, connect the positive terminal of the 0 – 6.3 V DC output on the power supply to the red socket of the

port labeled “FILAMENT” on the Argon Tube enclosure and connect the negative terminal of the power supply to the

black socket of the “FILAMENT” port.

• Note: Before connecting the power cords, please check that the setting for the input voltage range (110 – 120 V or 220 –

240 V) matches the local AC voltage. For the two power supplies and the current amplifier, connect a power cord between

the port on the back labeled “AC POWER CORD” and an appropriate electrical outlet.

Cables and Cords

Specification

Power Cord Length: 1.5 m, 16 A / 250 V

Connecting Cable, Red (EM-9740) Length: 0.85 m, 10 A / 300 V

Connecting Cable, Black (EM-9745) Length: 0.85 m, 10 A / 300 V

BNC-to-BNC Cable Length: 1.0 m, 1 A / 300 V

DANGER:

High Voltage is applied to the Argon Tube. Avoid contact with any part of the body.

• Only use safety equipment leads (shrouded patch cords) for connections.

• Make sure that the power supplies and current amplifier are OFF before making the connections.

• Make sure that the power supplies and current amplifier are OFF before installing or replacing

the argon tube in the Argon Tube Enclosure

Note: Replace the cables and power cords with the same type.