HP (Hewlett-Packard) 6205B ユーザーズマニュアル

5-69 REFERENCE CIRCUIT ADJUSTMENTS

5-70 Line Regulation. To 

adjust  the line regula-

tion capabilities of the instrument proceed as fol-

lows :

a .

Connect the differential voltmeter be-

tween +S (positive) and 31 (common).

b. Connect variable voltage transformer be-

tween supply and input power source.

c.

Adjust line to 105Vac.

d. Connect decade resistance in place of

R46.

e .

Set range switch to high voltage mode

and turn on supply.

f.

Adjust decade resistance so that voltage

indicated by differential voltmeter does not change
more than 1.08 millivolts for 6204B and 6205B or
.946mV for 6206B as input line voltage is varied

from 105 to 125Vac.

g. Replace decade resistance with appropri-

ate value resistor in R46 position.

5-71 CONSTANT VOLTAGE TRANSIENT RECOVERY

TIME

5-72 To adjust the transient response, proceed

as follows:

a .

Connect test setup as shown in Figure

5-8.

b. Repeat Steps a through f as outlined in

c.

Adjust R30 so that the transient response

5-73 CURRENT LIMIT ADJUSTMENT

5-74 To adjust the current limit so that the supply
can be used to furnish maximum rated output cur-
rent, proceed as follows:

a.

b. Short out load resistor (Ry).
c .

Set RANGE switch to low voltage (high

current) mode.

d. Turn on supply and rotate VOLTAGE con-

trols fully clockwise (maximum).

e .

Adjust R81 until differential volt meter

indicates 3.5Vdc for Models 6204B and 6205B sup-
plies or 3.6Vdc for Model 6206B supply.