Digital Panel Mount Tachometer with Photo-Reflective Sensor

About.

The Systems Tech TM-804 is a digital panel mount tachometer supplied with a photo-reflective probe. A light beam from the probe is aligned with a reflective strip applied to the rotating shaft or disc at a distance of 4 to 12 inches, and the meter times the reflected pulses to show RPM from 60 to 50,000 on a 5-digit LED display. It suits applications where nothing can be fitted to the shaft but a strip of tape. It is supplied with the probe, a 3 metre shielded cable, 12 x 1000 mm reflective tape and an instruction manual.

• Full digital, micro-controller design with auto-ranging
• Quartz crystal time base
• 5-digit 12.5 mm red LED display
• 96 mm square panel mount case
• Sensor and 3 metre shielded cable supplied
• Photo-reflective probe, 22 mm threaded, works at 4 to 12 inches

Specifications.

Range

60 RPM to 50,000 RPM

Resolution

0.1 RPM from 60 to 1000 RPM; 1 RPM from 1000 to 50,000 RPM

Display

5 digits, 12.5 mm (0.5 in) red LED

Accuracy

+/- 0.05% + 1 least count

Sampling rate

1 sample per second

Time base

Quartz crystal controlled

Power source

220 V AC, 50 Hz +/- 10%

Panel size

96 x 48 x 130 mm (96 mm square)

Sensor

Photo-reflective probe, 22 mm x 70 mm chrome plated brass

Sensing distance

4 in to 12 in (approx. 100 to 300 mm) from the reflector

Standard accessories

Photo-reflective sensor with 3.0 m shielded cable, 12 x 1000 mm reflective tape, instruction manual