Tachometer General description:
Optical tachometer with frequency module for photometric detection of rotational speed or
triggering signals.
Application:
The movable part is equipped with a reflecting tape and the sensor is focussed to
it. As a function control a yellow signal lamp lights up at the rear side of the
instrument, when the reflecting foil is detected.
| Specification for FU 1919 2 |
| Measuring range: |
8 to 10000 rpm,
higher speed on demand |
| Accuracy: |
± 0,02 % of final value ± 1 digit |
| Resolution: |
±1 rpm (± 1 digit) |
| Operation range: |
20 to 200 mm (depending on reflector size) |
| Reference value: |
standard white 200 x 200 mm |
| Setting of detection range: |
by means of potentiometer |
| Detectable object: |
opaque to light |
| Hysteresis of distance: |
£ 10 % |
| Type of light: |
red light 6600 nm |
| Limit of external light: |
sun ligth £ 20000 Lux,
halogen light £ 5000 Lux |
| Ambiant temperature: |
– 25 to + 55 °C |
| Storage temperature: |
– 40 to + 70 °C |
| No-load current: |
£ 20 mA |
| System of protection: |
IP 67 |
| Optics: |
2-lense system PC |
| Allowed strain of shock: |
b £ 30 g, T £ 1 ms |
| Allowed strain of swing: |
f £ 55 Hz, a £ 1 mm |
| Connection cable: |
PVC (4 x 0,14 mm2) length 1,5 m,
ALMEMO®-connector |
| Housing: |
brass, nickeled |
| Outlet of light: |
PMMA |
| Weight: |
15 g |
| Power supply: |
12 V obligatory |
| Conformity to standards: |
EN 60 947-5-2 |
| Dimensions: |
Ų M12x1 mm, length 55 mm |
| Order No. |
Description |
| FU A919 2 |
Optical tachometer incl. reflecting tape |
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