User's Manual

SE-9639 Franck-Hertz Experiment
18
012-14264A
Appendix A: General Specifications
Item Description
Supply voltage: 110 – 120 V or 220 – 240 V
Supply voltage fluctuations: ±10%
Fuse protection for inputs: 250 V T2A
Display: 3-1/2 or 4-1/2 digit display
Using site: Indoor use
Temperature: Operating: 0°C to 40°C, Storage: -20°C to 50°C
Relative humidity: Noncondensing < 10°C, 90% from 10°C to 30°C, 75% from 30°C to 40°C
Pollution degree: 2
Certifications CE
Safety compliance: IEC/EN 61010-1
Overvoltage category: II
Degree of protections: IP20
Normal energy protection: 5 J
Item Description
Tunable DC (Constant Voltage)
Power Supply I
0~6.3 V DC, I 1A (ripple < 1%), 3.5 Digit Display;
-4.5~0 V DC / -4.5~30 V DC (ripple < 1%) (Two ranges),
I 10mA, 4.5 Digit Display;
Tunable DC (Constant Voltage)
Power Supply II
0~12 V DC, I  1A (ripple < 1%), 3.5 Digit Display;
0~100 V DC / 0~200 V DC (ripple < 1%) (Two ranges),
I 30mA, 3.5 Digit Display
DC Current Amplifier
Current range: 10
-8
~10
-13
A, in six ranges, 3.5 Digit Display;
Zero drift  ±1% of full range reading in 30 minutes at the
range of 10
-13
A (after a 20 minute warm-up)
Argon Tube Filling gas: argon
Filament voltage: 6.3V DC
Accelerating voltage: 100 V DC
Wave crest (or trough) number: 6
Life span:  2000 hours