r)
Measuring Range :
a. Photo 2, 5 to 99, 999 rpm
b. Contact Tachometer : 0.5 to 19, 999 rpm
c. Surface Speed : 0.05 to 1, 999.9 m/ min : 0.2 to 6, 560 ft/ min

Resolution :
Tachometer
a. 0.1 rpm for 2.5 to 999, 9 rpm
b. 1 rpm for over 1, 000 rpm

Surface Speed
a. 0.01 m/ min over 10m/ min
b. 0.1m/ min over 100 m/ min
c. 0.1 ft/ min for 0.1 to 999.9 ft/ min
d. 1ft/ min over 1, 000 ft/ min

Accuracy :
a. Tachometer ï ¿ ½ 0.05% + 1 rpm
b. Surface Speed : ï ¿ ½ 0.05% + 0.03 m/ min

Sampling Time :
a. Photo Tachometer 1 sec over 60 rpm
b. Contact Tachometer 1 sec over 15 rpm