Figure 3. Model 5326C marker test point.

Calibration Procedure For Frequency Counter Models 5326A, 536B, And 5326C Page Navigation
9

TB 9-6625-1973-24

(7) Adjust A17R11 (fig. 1) (no adjustment can be made for TI's with SN prefix 1128A

and below) while reducing function generator amplitude until TI displays applied frequency

with less than 5 mV rms input (R).

11. Input Zero

NOTE

This check is applicable only on those models having option 004

programmable attenuator assembly.

a. Performance Check

(1) Position controls as listed in (a) through (d) below:

TIME BASE switch to 0.1 sec.

(a)

AC/DC switch to DC.

(b)

SEP/COM switch to SEP.

(c)

ATTEN A and B switches to X10.

(d)

(2) Connect multimeter to CHANNEL A connector.

(3) If multimeter indicates more than 1 mV, perform b (1) below.

(4) Move multimeter connection to CHANNEL B connector.

If multimeter

indicates more than 1 mV, perform b (2) below.

(5) Set A and B ATTEN switches to X100. If multimeter indicates more than 1

mV, perform b (3) below.

(6) Move multimeter connection to CHANNEL A connector.

If multimeter

indicates more than 1 mV, perform b (4) below.