Promax MR-275 Dual Digital Tachometer

Measurement & Range

Photo Tachometer: 5 to 99.999 RPM

Contact Tachometer: 0.5 to 19.999 RPM

Surface Speed: m/min. - 0.05 to 1,999.9 m/min

ft/min. - 0.2 to 6,560 ft/min

Resolution

- RPM: 0.1 RPM ( < 1.000 RPM )

1 RPM ( ≥ 1.000 RPM )

- m/min.: 0.01m/min. (< 100 m/min.)

0.1m/min. ( ≥ 100 m/min.)

- ft/min.: 0.1 ft/min. (<1.000 ft/min.)

1 ft/min. ( ≥ 1.000 ft/min.)

Display: LCD, size 60 x 30 mm, 5 digits (99.999 count)

Accurac:y ± (0.05% + 1 digit)

Photo Tachometer

Detecting distance: 5 to 100cm typically

Time base: Quartz crystal

Circuit: Exclusive one-chip of microcomputer LSI circuit

Photo Tach. Laser

Light source: Less than 1 mW.

Class 2 laser diode. Red Wave length is 645 nm approximately

Memory: Last/Max./Min. value

Battery: 4 x 1.5V AA batteries

Consumption

Photo type: Approx. DC 53 mA.

Contact type: Approx. DC 10 mA.

Size: 215 x 75 x 38 mm. (H. x W. x D.)

Weight: 260 g.

Accessories Included:

Carrying case, Reflecting tape marks

Contact adapters (cone/funnel/wheel)

User's manual

4x 1.5V R6V AA batteries

Protective cover for emitter laser

Datasheet