Traceable® Touchless/Contact Dig. Tachometer
By Control
Labs use this high accuracy unit to check speeds of centrifuges, motors, or stirrers. Five digits LCD is a vivid 0.5-inch high display. Using a precision quartz crystal the tachometer takes only three seconds for most readings. A unique memory feature permits recalling the highest, lowest, and last reading. Unit is extremely easy to use; operation may be learned in three minutes.
One end of the unit provides contact readings with a rotating spindle. The other end makes touchless readings using a beam of light, the light may be held as far away as twelve inches. The light beam reflects off of self-adhesive tabs to provide readings of 0.1 to 99,999 revolutions per minute.
The contact end of the instrument measures speeds of 0.1 to 19,999 revolutions per minute, 0.05 to 1999.9 meter per minute, and 0.2 to 6560 feet per minute.
Resolution in all modes is 0.1 below 1000 and 1 above 1000. Accuracy is ±1 digit or 0.5%. Utilizes a precision quartz crystal for accurate time base. To enable the user to report reliable results an individual serial numbered Traceable® Calibration Certificate traceable to NIST (National Institute of Standards and Technology) is supplied.
Comes with four AA alkaline batteries (for thousands of intermittent readings for over a year), Traceable® Certificate, rugged ABS case, self-adhesive reflecting tabs, internal light, cone for RPM, wheel for RPM, wheel for surface speeds, and carrying case. Size is 2-1/2 x 8-1/2 x 1-1/2 and weight is 10-1/2 ounces. Replacement battery Cat. No. 291-1111.