Checkline YSL-2000HD - Manual (Page 3)

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2 .0 SAFET Y PRECAU T I ON S
All operators should wear safety goggles when using this or any other
tachometer. Failure to do so could result in serious injury!
1. Check condition of housing, slide-on Contact Adapter and
split mounting hubs of push-in Contact Cone, Surface Speed
Wheel and any other accessories. Replace those that are worn,
loose-fitting or cracked. The Contact Adapter shaft should
rotate freely.
2. When operating in the contact mode, be sure Contact Adapter
fits snugly into the housing grooves.
3. When using the Surface Speed Wheel accessory, make sure it
its the tachometer shaft snugly. In operation, keep the wheel
perpendicular and parallel to the moving surface to prevent it
from running off the tachometer shaft.
4. Do not use the standard surface speed wheel for speeds in
excess of 1000 feet per minute. For higher speeds, specify the
optional Heavy-Duty Surface Speed Wheel (DT12) with
set-screw mounting.
5. Store the instrument in its carrying case when it is not in use
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Resolution .01 from 0 –100
.1 from 100 – 1,000
1 from 1000 – 99,999
Accuracy ± 0.02% of reading or ±1 digit
Display 5-Digit LCD, 10mm high
Decimal Point Automatic
Memory System Maximum, minimum, average and last reading (retained in
memory for the life of batteries)
Measurement System
Non-Contact Visible LED light beam
Contact Contact adapter
Engineering units
RPM RPM
Surface Speed Feet/min, inches/min and meters/min
Length Feet, inches, meters
Sensing Distance Up to 24 inches (60 cm)
Display Update Time 0.5 seconds or one measuring period
Auto Power Off After 30 seconds of non-use (minimum, maximum
average, and last reading retained in memory)
Battery Life 40 hours continuous use (approx.) with alkaline batteries
Battery Type 2 AA (1.5 V) or rechargeable
Weight 6 ounces (170 grams)
Housing Material ABS Plastic
Operating Temperature 32 to 122° F (0 to 50° C)
Storage Temperature – 4 to 158° F (–20 to 70° C)
Accessories Included Contact adapter, cone tip, 6" circumference universal
surface speed wheel, reflective tape, NIST-traceable
calibration certificate, operating instructions and foam-
fitted, hard-plastic carrying case
1 1 .0 SPECI FI CAT I ON S
Optical 1 – 99,999 rpm
Mechanical 1 – 99,999 rpm
Measuring Ranges – rpm
0 – 99,999 m, / 0 – 99,999 ft / 0 – 99,999 in
Measuring Ranges – length
Other Specifications
Wheel Size 6" 12" 0.1 m
m/min 0.10–1524 0.40–609.6 0.10–1999
ft/min 0.40–5000 0.40–2000 0.40–6550
in/min 4.0–60.00 4.00–24.000 4.00–78.700
m/sec 0.10–25.40 0.10–10.16 0.10–33.30
ft/sec 0.10–83.33 0.10–33.33 0.10–109
Measuring Ranges – speed