Digi-Sense 20250-26 User Manual
User Manual
Digital Contact/Photo Tachometer
with NIST-Traceable Calibration
Model 20250-26
THE STANDARD IN PRECISION MEASUREMENT
2
Introduction
The Digi-Sense Digital Contact/Photo Tachometer (Model
20250-26) is designed for quick and accurate rpm and surface speed measurements. This digital tachometer is an
essential instrument in preventive maintenance programs
for ensuring the optimal performance of your equipment
and will reduce costly downtime and repairs by catching
potential equipment problems early. Easily configure the
unit for contact or noncontact measurements depending on
your application requirements. Tachometer features autoranging with 0.05% accuracy; Max, Min, and last values;
built-in memory recall of last twenty average measurements; and a rugged design that is ideal for industrial
environments. The instrument is fully tested and calibrated
to NIST-traceable standards. Careful use of this
meter will provide years of reliable service.
Unpacking
Check individual parts against the list of items below. If
anything is missing or damaged, please contact your
instrument supplier immediately.
1. Tachometer
2. Surface speed wheel
3. Large male rpm rubber cone
4. Small male rpm rubber cone
5. Female rpm rubber cone
6. rpm contact adapter
7. Reflective tape (23
5
⁄8", 60 cm)
8. Four set screws
9. Carrying case
10. Four AA batteries
11. User manual
12. NIST-traceable
calibration report
with data
3
Meter Description
1. Surface speed wheel
2. rpm contact adapter
3. Contact converter
4. Measure button
5. Mode/Function switch
(m/min contact, rpm
contact, rpm photo)
6. MEM button
(memory/recall)
7. Backlit LCD
8. Battery cover
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