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SAFEGUARDS AND PRECAUTIONS WARNING - This product emits a visible beam of red LED light. Avoid exposure. The use of optical viewing aids (binoculars, for example) may increase the ocular hazard. (This is not a laser product.) CAUTION - The red LED beam should not be intentionally aimed at people or animals.
1.0 OVERVIEW The Pocket Tach 99 is a handheld precision optical tachometer designed to make non-contact measurements of rotational speeds from 5 to 99,999 RPM at a distance of up to 36 inches [91.44 cm] from a reflective target and at an angle of up to 30° off perpendicular. The unit has the ability to recall maximum and minimum values.
3.0 LCD SYMBOLS On-Target Indicator — blinks on whenever these is an input signal; will appear to be solid on at higher frequencies Low Battery icon — indicates that the batteries are low and need to be replaced Times Ten icon — indicates that the value shown is ten times that which is displayed LED Indicator —...
4.0 NON-CONTACT MEASUREMENTS 4.1 Preparation for Measurement 1. Clean 2. Apply 1/2 inch shaft [12.7 mm] square T-5 Reflective tape For Small Shafts: As small as 1/8 inch [3.2 mm] wide on side or radius edge 4.2 Setup 1. Turn Power ON 1a.
4. Save and exit; RPM displayed with ready to measure selected number of decimal places Unit will remember these settings (including lock on/off) even if turned off and back on. 4.3 Operation Measure: Lock on press and hold aim LED Recall Max: Max Speed Recall Min:...
Power OFF: Automatic after 90 seconds if unit not Locked on 5.0 BATTERIES When Low Battery icon is displayed, replace batteries. 1. Remove battery cover 2. Install two 1.5 V AA alkaline batteries Note: Both batteries face the same direction. 6.0 CLEANING To clean the equipment, wipe with a damp cloth using mild soapy solution.
7.0 SPECIFICATIONS Specifications* PT99 Tachometer Speed Range 5 to 99,999 RPM Accuracy ±0.01% of reading or ±1 digit Resolution Auto-ranging: 0.001 RPM to 1.0 RPM Operating Range ≤ 36 in. [91.44 cm] at ≤ 30° off perpendicular Memory Maximum, Minimum, and Last Reading...
5 feet [1.5 m] roll, ½ inch [13 mm] wide; PN: 6180-070 additional lengths available CC-10 Padded carrying case with belt loop PN: 6180-047 CC-11 Latching carrying case for PT99 and accessories PN: 6180-048 Mini Tripod Miniature tripod for use with Monarch PN: 6180-040 tachometers and stroboscopes CAL-NIST...
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