Electrical speedometer
| Application | |||
| The instrument is suitable for measuring the speed of motor vehicles. | |||
| Description | |||
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| Technical data: | |||
| Operating voltage: | 12 or 24V | ||
| Indicating range (km/h): | 0 - 60 | ||
| 0 - 90 | |||
| 0 - 120 | |||
| 0 - 220 | |||
| Basic error in set measured in the percentual value of the max. scale value: | |||
| 10 – 90% of speed : | max. +5% | ||
| Additional error: | 0,5 % / 10°C | ||
| Vibration proofness: | +5
dB on frequency range 25 -1000 Hz ( 0dB = g = 9.81 m/s2 ) |
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| Protection grade against the penetration of dust and splashing water: | |||
| front side: | IP 54 | ||
| other side: | IP 40 | ||
| electrical connection: | IP 00 | ||
| Temperature limits: | |||
| Operiting temperature: | - 25°C ... +65°C | ||
| Storage temper: | - 40 °C... +70°C | ||
| Mounting size: | D100 mm , o140 mm | ||
| Mass: | 0.45 - 065 kg | ||
This
instrument requires a transmitter. The instrument consists of a movement
built into an internal-illumination metall case coated against corrosion.
The transmitter is an A.C. generator supplying a voltage proportional
to the speed of the vehicle. It is upon effect of this voltage that
the pointer of the rectifier-type, moving coil-measuring instrument
deviates.