Digital Contact 2235B Tachometer by Swastik Scientific Company

PHOTO TACHOMETER, Model : DT-2234B CONTACT TACHOMETER, Model : DT-2235B Items PHOTO TACHOMETER CONTACT TACHOMETER Model DT-2234B DT-2235B Range 5 to 99,999 RPM 0.5 to 19,999 RPM Surface Speed (m/min.) : 0.05 to 1,999.9 m/min. Surface Speed (ft/min.) : 0.2 to 6,560 ft/min. Resolution RPM 0.1 RPM < 1,000 RPM RPM 0.1 RPM < 1,000 RPM 1 RPM 1,000 RPM 1 RPM 1,000 RPM ≧ 0.01 m/mim. < 100 m/min. Surface 0.1 m/min. 100 m/min. ≧ Speed 0.1 ft/min. < 1000 ft/min. 1 ft/min. 1,000 ft/min. ≧ Display 5 digits, 10 mm ( 0.4" ) LCD. 5 digits, 10 mm ( 0.4" ) LCD Accuracy ± ( 0.05 % + 1 digit ). ± ( 0.05% + 1 digit ). Sampling Time 1 second ( 60 RPM ). 1 second ( 6 RPM ). Time base Quartz crystal . Quartz crystal . Photo Tach. 50 to 150 mm/2 to 6 inch. detecting * Typical max. 300 mm/12 inch distance depending upon ambient light. Circuit Exclusive one-chip of micro- Exclusive one-chip of microcomputer LSI circuit. LSI circuit. Battery 1.5 V AA (UM-3) battery x 4 PCs. 1.5 V AA (UM-3) battery x 4 PCs. Operating temp. 0 to 50 ( 32 to 122 ). ℃ ℉ 0 to 50 ( 32 to 122 ). ℃ ℉ Memory Last value, Max. value, Min. value. Last value, Max. value, Min. value. Size 190 x 72 x 37 mm (7.5 x 2.8 x 1.5 inch). 208 x 72 x 37 mm (8.2 x 2.8 x 1.5 inch). Weight 250g (0.55 LB)/including battery. 280g (0.62 LB)/including battery.

Accessories Carrying case   1 PC Carrying case  1 PC Reflecting tape marks (600 mm) RPM adapter (CONE 1 PC  1 PC RPM adapter (FUNNEL 1 PC Operation manual  1 PC Surface speed test wheel 1 PC Operation manual  1 PC * Appearance and specification listed in this brochure are subject to change without notice. 0601-DT2234B/DT2235B