The YS-20 Combination Hand-Held Digital Tachometer combines the best features of both contact and non-contact models to accurately measure RPM, surface speed and length.
When using the non-contact mode, rotational speed (RPM) is measured using a visible beam of light. The YS-20 can be up to 14 inches away from the small piece of reflective tape that is affixed to the rotating element. In the contact operating mode, the speed is sensed by directly contacting rotating device using one of the contact adapters supplied with the instrument.
In other applications where surface or linear speeds are to be measured, the universal wheel is used for direct readout of feet/min, meters/min or inches/min, as selected by the end user. The YS-20 can also be used to measure the accumulated total of continuously running material such as paper, wire being wound on a spool, or to check the calibration of on-line counters and totalizers.
Linear Speed | Length | Revolutions |
---|---|---|
feet/min | feet | rpm |
meters/min | meters | |
inches/min | inches |
RPM: | Non-Contact: 1.00 - 99,999 rpm Contact: 1.00 - 19,999 rpm |
Surface Speed: | 0.30 - 6,500 feet/min 0.10 - 1,999 meters/min 4.0 - 78,000 inches/min |
Length: | 0.01 - 99,999 feet 0.02 - 99,999 meters 1.0 - 99,999 inches |
Resolution: | 01 from 0 - 100 .1 from 100 - 1,000 1 from 1000 - 99,999 |
Yarn/Wire Diameter (max.): | Yarn: 1mm Wire: 0.3mm |
Accuracy: | ± 0.02% of reading or 1 digit |
Display: | 5 - Digit LCD, 10mm high |
Decimal Point: | Automatic |
Memory System: | Maximum, minimum, and last reading (retained in memory for the life of the batteries) |
Measurement System: | Non-Contact: Visible LED light beam Contact: Contact adapter |
Sensing Distance: | Up to 14 inches (350mm) |
Display Update Time: | 0.5 seconds or one measuring |
Auto Power Off: | After 30 seconds of non-use (minimum, maximum and last reading retained in memory) |
Battery Life: | 20 hours continuous use |
Weight: | 6 ounces (170 grams) |
Housing Material: | ABS Plastic |
Operating Temperature: | 32 to 122º F (0 to 50º C) |
Storage Temperature: | -4 to 150º F (-20 to 70º C) |
Optional Accessories: | Shaft extension, 3.15 inches (80 mm) |
Warranty: | 5 years |