TB 9-6622802-35
center range, R.H. LIMIT (R10) and L.R. LIMIT
(2)
Make the following adjustments on the
(R13) fully clockwise.
servo amplifier boards (A7) (see fig. 5):
(3) Set dc voltage standard to 0 Vdc.
GAIN (R7)
Table 5. Span Accuracy Checks
DC standard
Full scale
Full scale
Tolerance (millimeters)
output
RANGE switch
positive
negative
50 mv
1mV /DIV
+ 0.5
100 mv
2mV/DIV
+ 0.5
250 mv
5mV/DIV
+ 0.5
1.0 v
20mV/DIV
+ 0.5
2.5 v
50mV /DIV
+ 0.5
5.0 v
1V/DIV
+ 0.5
10 v
2VIDIV
+ 0.5
25 v
5V/DIV
+ 0.5
50 v
1V/DIV
+ 0.5
100 v
2V/DIV
+ 0.5
250 v
5V/DIV
+ 0.5
(4) Set preamplifier selector to .1V/DIV,
R10) until pen is 2 mm outside grid on
CHART SPEED to 1 mm/SEC and
right side (R).
position pen to center grid line.
(7) Set dc voltage standard to 0 volts and pen
(5) Set dc voltage standard to +5 volts and
to right grid line.
adjust L.H. LIMIT (R13) until pen is 2 mm
outside grid on left side (R).
(8) Set dc voltage standard to +5 volts.
(6) Set dc voltage standard to -5 volts and
(9) Adjust gain control (R7) until pen is on left
adjust R.H. LIMIT
grid line (R).
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