Rotaro digital hand-tachometer
The rotaro digital hand-tachometer is a device for measuring rotational speed and velocity, as well as length. The compact device has two measuring methods. One is optical, and therefore non-contacting; the other is mechanical using an adapter and various probes.
With the optical method, it focuses a beam of light at a thin sticker attached to the object, which reflects it at the speed of rotation. The result appears immediately on the 5-digit LCD. The distance between the rotaro digital hand tachometer and the test object can be up to 600 mm.
The mechanical method uses a contact probe, which is directly attached to the axis of rotation. A measuring wheel is placed on the adapter to measure velocity or length.
The rotaro is supplied with a protective holster, as well as a sturdy case with a complete set of accessories. It is also supplied with a calibration certificate by which the rotaro itself is approved as a calibration device. A detailed operating manual completes the set.
The rotaro digital hand tachometer is just as useful when setting up plants and machinery as during service jobs, monitoring manufacturing processes or in development laboratories. Example applications include measuring the rotational speeds of engines, pumps and turbines, as well as of mixers, centrifuges and conveyors; it can also measure the velocities and lengths of all kinds of sheets and belts.
Features of the rotaro digital hand tachometer at a glance:
- Easy handling with three buttons
- Measuring distance up to 600 mm
- Highly accurate
- Memory function for minimum, maximum, average and most recent values
- Standard and rechargeable battery operation
Contents:
- Main unit with hoster and case
- 10 reflective stickers
- Adapter for mechanical measurement
- Test probe, hollow probe, measuring wheels (0.1 m and 6“)
- Extension shaft
- 2 x 1.5 V AA batteries
- Padded case
- calibration certificate
- Operating manual
| Measuring range |
1.00 to 99,999 repm for optical measurement
1 to 19,999 rpm for meachanical measurement |
| Accuracy |
± 0.02% (or ± 1 digit) for rpm |
| Measuring time |
1 second or one period |
| Measuring distance |
Up to 600 mm |
| Measuring principle |
Optical / mechanical |
| Memory function |
Minimum, maximum, average and most recent value |
| Shutdown |
Automatic after 30 s |
| Power supply |
2 x 1.5 V AA batteries or standard rechargeable |
| Operating temperature |
0 – 50 °C |
| Storage temperature |
-20° – 70 °C |
| Housing |
ABS plastic |
| Standards |
CE |
| Display |
5-digit LCD for measured value with
10 mm digit height and floating decimal point for range switching.
Symbols for:
"LowBatt“ = change battery
"Trigger“ = pulse detected
"MEM“ = show last reading
"MEM-MAX“ = maximum value
"MEM-MIN“ = minimum value
"MEM-AV“ = average value
"RPM“ = mode
Depending on the mode, the following units appear in the display: RPM, M/MIN, FT/MIN, IN/MIN, M, FT or IN |
| Operation |
The device is operated with three buttons.
The measuring button in the middle switches it on and is pressed during the measurement.
The MEM button enables you to select the four memory functions in succession.
Even after the device is switched off, the stored values remain in the memory so that they are available when it is switched on again.
The MODE button is for selecting the operating mode. |
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