DT-100A Contact Tachometers The Series DT-100A Tachometer with microprocessor technology has heralded a superior standard in tachometer accuracy and capabilities for measuring and recording speeds of rotational, linear and surface plus total length. Offering unprecedented confidence, the DT-100A battery-operated tachometers feature the same rugged, high quality components that have made them the benchmark in the industry. These userfriendly, value-packed units feature memory storage; quick adjustment units knob; length functions; retrieval of last, maximum and minimum values; plus each unit comes standard with a free N.I.S.T. certificate. Units are available with an LCD or vibrant red LED display. Incorporating the precise technology and user-friendly functions as the DT-100A, the DT-100A-S12 provides an exceptional accuracy in measuring speed and length via its 12" wheel. The larger wheel rotates more slowly than a standard 6" wheel, enabling reliable and safe registration of high speeds. DT-107A DT-105A Features * Outstanding accuracy allows usage in the strictest applications * Exceptionally rugged die-cast aluminum housing enables usage in the harshest conditions * Wide field selection of units in both instantaneous rate as well as totalized length satisfies a multitude of user requirements * Large 5 digit display aids user visibility * Expansive 10 measurement memory capacity allows quick retrieval of stored data plus additional last, max. & min. values * Long-life battery (25-40 hrs. continuous use) eliminates concerns of being down during testing * Compact, ergonomic design allows easy grip * Rear threaded inserts provides option to mount to stand or other device * Available display options of either LCD or vibrant, bright red LED * CE Mark combined with free N.I.S.T. certificate provides peace of mind due to the quality of the instrument DT105A Shown with Included 6" Circle Wheel Optional DT105A-S12 with 12" Circle Wheel Standard DT-100A in Supplied Case DT-100A Specifications Ordering Details Display Range 0.10 - 25,000RPM with floating decimal Accuracy 0.06 rpm: 0.10 - 999.9 rpm; 0.6 rpm: 1,000.0 - 9,999.9 rpm; 0.006% of reading 1 digit (2 rpm max.) 25,000 rpm Display DT-105A: 5 digit 0.47" (12 mm) high LED; DT-107A: 5 digit 0.4" (10 mm) high LED Measuring Units Revolution: RPH, RPM; Feet: FPH, FPM; Miles: MPH; Yards: YPH, YPM; Inches: IPM; Meters: mPH, mPM; Length: m, cm, inches, feet, yards; Total Revolutions: REV DT-105A LCD Contact Tachometer with included 6" contact wheel. Includes NIST certificate. DT-105A-S12 LCD Contact Tachometer with included 12" contact wheel. Includes NIST certificate. DT-107A LED Contact Tachometer with laser sensor and contact adapter for use with included 6" contact wheel. Includes NIST certificate. DT-107A-S12 LED Contact Tachometer with included 12" contact wheel. Includes NIST certificate. Memory System 13 readings are stored in memory and retained for 5 minutes (last, max., min., and 10 extra measurements) Detection Optical coupler, 60 pulses/rev. Update Time 1 second (typical) Over Range Indicator Flashing numerals CONE 1/2 inch cone adapter Power Requirement 2 AA 1.5V batteries (Life: Approx. DT-105A: 65 hrs.; DT-107A: 40 hrs.) CONE-3/4 3/4 inch cone adapter Operating Temperature 32 - 113F (0 - 45C) CONE-1-1/4 1-1/4 inch cone adapter Construction Die-cast aluminum housing DT-CARRY100 Carrying case for handheld tachometers Product Weight 0.9 lb (400 g) EXT-SHAFT Package Weight Approx. 2 lb (.91 kg) 3.5 inch extension shaft for handheld tachometers Approvals CE FPM-12 12 inch circumference measuring wheel FPM-6 6 inch circumference measuring wheel Dimensions 7.2" L x 2.4" W x 1.8"H (182.5 mm x 60 mm x 46 mm) FPM-6-GV Warranty 2-Year 6 inch circumference grooved measuring wheel FUNNEL 1/2 inch funnel adapter Included Accessories 2 cone adapters, funnel adapter, 31/2" extension shaft, carrying case, NIST certificate, master wheel (6" cir.) NIST-TACH NIST traceable certificate with data Options -S12 Option: Same as DT-100A except 6" circumference wheel replaced with 12" circumference contact wheel Optional Accessories Included Accessories (2) Cone Tips 1/2" Funnel Tip Accessories FPM-6 (ft./min, 6" cir.) Extension Shaft (3 1/2") Carrying Case FPM-12 (ft./min) 12" circle DISTRIBUTED BY: FPM-6-GV (6" circle grooved wheel)