Multi–functional digital tachometer
Pinpoint accuracy combined with measurement versatility


The Multi–functional digital tachometer TKRT 20 is a user–friendly and accurate digital tachometer utilising laser or contact for measuring rotational and linear speed. Equipped with a laser and contact adaptor, it offers excellent speed measurement versatility in five different modes. Additionally, the large angular range of ± 80° to target facilitates the easy measurement in areas where straight–line access is difficult. The laser optical system allows easy and quick speed measurement at a safe distance from rotating machinery.
SKF TKRT 20 (fig 1)
Supplied in carrying case for protection and portability.
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With this digital tachometer the user can select to measure:
- rpm, rps, m, ft or yards per minute or second,
- length or revolution counting, or
- time interval - Wide speed range and the various measurement modes make the TKRT 20 suitable for measuring speed in many applications
- Large angular range of ± 80° to target facilitates easy measuring in areas where straight–line access is difficult
- The large inverting LCD display facilitates easy reading even when pointing the unit down into the machinery
- Compact design; one–hand operated instrument
- Supplied in carrying case for protection and portability
- The digital tachometer TKRT 20 can also be equipped with remote laser sensor, which is optionally available
SKF TKRT 20 (fig 1)
Supplied in carrying case for protection and portability.
Technical data
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|
Designation
| TKRT 20
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Display
| Inverting vertical 5 digit LCD
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Displayed resolution
| Fully auto ranging up to 0,001 digit or ±1 digit fixed
|
Memory
| Last reading held for 1 minute
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Low battery indicator
| Yes
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Auto switch off
| After 1 minute
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Measurement
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|
- Optical modes
| r/min and rps (also Count and Time interval)
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- Contact modes
| r/min and rps, metres, yards, feet, per min and per sec
|
- Count modes
| total revs, metres, feet, yards
|
- Time interval | in seconds between pulses (reciprocal rate) |
- Speed capture
feature | Maximum, Minimum or Average rate |
- Sampling time
| 0,8 seconds or time between pulses
0,1 seconds auto-selection in Max or Min capture mode |
- Linear speed
| 0,3 to 1 500 metres/min (4 500 ft/min) or equivalent in seconds
|
Optical Measurement
|
|
- Rotational speed
range | 3 to 99 999 r/min |
- Accuracy | ±0.01% of reading ±1 digit |
- Measuring distance | 50 mm to 2 000 mm (1.9 - 78.7 in.)
|
- Angle of operation | ±80˚ |
- Laser sensor | 1x built-in class 2 laser |
- Remote laser sensor | Optional TMRT 1-56 |
Contact Measurement | |
- Rotational speed
range | Max. 50 000 rpm for 10 sec |
- Accuracy | ±1% of reading ±1 digit |
- Contact adaptors | Included with rpm cone & removable metric wheel assembly |
Battery | 4 x AAA alkaline type IEC LR03 |
Operation time | 24 hours continuous use |
Additional power source | N/A |
Product dimensions | 213 x 40 x 39 mm (8.3 x 1.5 x 1.5 in.) |
Product weight | 170 g (0.37 lbs) |
Operating temperature | 0 to 40 °C (32 to 104 °F) |
Storage temperature | –10 to +50 °C (14 to 122 °F) |
Relative humidity | 10 to 90% RH non-condensing |
IP rating | IP 40 |
Case dimensions | 260 x 85 x 180 mm (10.3 x 3.4 x 7.0 in.) |
Case contents | 1x SKF Tachometer TKRT 20
1x set of contact adaptors TMRT 1-57 4x AAA batteries 1x set of reflective tape 1x printed instructions for use 1x calibration certificate |