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Description
Particularité technique
- Two Crystal-controlled, Calibrated Frequencies: (10 Hz and 40 Hz), accurate to 0.1%. The 40-Hz frequency is ideal for freefall experiments. The slower 10-Hz frequency is best for most dynamics track experiments.
- Includes an Internal 9-V Battery, or Use an Optional External 9-V AC Adapter/Power Supply: A single battery can last for up to a year’s worth of normal experiments.
- Low Mass, Small-pin Printing Head: Driven by short millisecond pulses, produces sharp, round dots without smearing.
- Plain Paper: Print on 12.5 mm (1/2 inch) wide, plain paper supplied in 150-meter (500 feet) rolls.
- Carbon Paper Discs: Used for printing. The adjustable disc holder allows the printing point to be adjusted, giving a long life to the discs.
- Rod Clamp: Allows the Tape Timer to be mounted on a standard lab stand rod so that the paper path is either parallel or perpendicular to the rod. Rod sizes between 13 mm (1/2 inch) and 9 mm (3/8 inch) are accommodated.
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