5

0.7V

2.1V

1k

Ω

10k

Ω

TRIM

The above equations were used in calculating the follow-

Tachometer Application

RPM

60

x # OF CYL.

2

= Frequency

Typical values shown above apply to a nominal value of

will be necessary to compensate for variations in regula-

tor voltage from one unit to another.

potentiometer, as shown in Figure 2.

Partial schematic shown in Figure 3 represents one met-

hod for use with DC applications instead of frequency.

Figure 2: Alternate Trimming Method

Figure 3: DC Application