Yarn Speed and Length Meter

Combined hand-held tachometer:
- speed and length meter for filament and similar materials
- hand-held tachometer for contact and non-contact measurement e.g engine shafts

Tachometer with LCD display and 7 selectable measuring units

The most used yarn-speedmeter for circular knitting machines


Easy to use
Rugged plastic housing with rubber sheathing for firm and safe handling
Easy to read displa

The yarn speed and length meter YS-20 combines the function of four separate instruments in one:
– Speed and length meter
– contact measuring of revolutions
– contact measuring of velocity of rotation
– non-contact measuring of revolutions
2 Slide-in measuring adapters for yarn speed and length meter YS-20 make it simple to convert from contact to non-contact or to speed and length measurement
User-selected units
Linear Speed: meters/min, feet/min, inches/min
Length: meters, feet, inches
Revolutions: rpm
The measurement is carried out, as long as the measuring key is pressed
Built-in memory for minimum, maximum and last values
Tachometer with big, easy to ready LCD display
Electricity saving electronic assures a long battery durability

Measuring ranges:Yarn speed measurement
0.10 … 1999 m/min
0.40 … 6550 ft/min
4.00 … 78700 in/min
0.10 … 33.30 m/sec
0.10 … 109 ft/sec
Yarn length measurement
0.00 … 99999 m
0.00 … 99999 ft
0.00 … 99999 in
Revolution measurement
Non-contact measurement: 1.00 … 99999 rpm
Contact measurement: 0.10 … 19999 rpm
Accuracy:±0.2 % of displayed value ±1digit (not length measurement)
Measuring units:Speed: m/min, ft/min, in/min, m/sec, ft/sec
Length: m, ft, in
Revolutions: rpm
Display:5 digit LCD, 10 mm high – floating decimal point
Measuring system:Speed/Length: Slide-on measuring head with 30 mm diameter measuring wheel and wrapper roller
Non-Contact Tachometer: Visible LED light beam
Contact Tachometer: Slide-on measuring head with cone tip and surface speed wheel (10 cm circumference)
Yarn/wire diameter:Yarn: max. 0.5 mm
Wire: max 0.3 mm
Memory:Min, Max, last reading, all retained in memory for the life of batteries
Sensing distance:Max. 600 mm
Display update time:1 sec
Auto Power Off:After 30 s of non-use
Temperature range:5 – 45 °C
Air humidity:85 % RH, max.
Power supply:Batteries 2 x 1.5 V type AA (approx. 20 h continuous use)
Housing material:ABS plastic
Dimensions:145 x 60 x 30 mm (LxWxH)
Weight, net (gross):Approx. 150 g (700 g)

Specifications subject to change without notice!