ITM 11-6625-2965-14&P
MANUAL CHANGES
Model 6205B DC Power Supply
Manual HP Part No. 06205-90002
Make all corrections in the manual according to errata below,
then check the following table for your power
supply serial number and enter any listed change(s) in the manual.
SERIAL
MAKE
Prefix Number
CHANGE S
ALL
Errata
7L
5451
- 5900 1
7L
5901 - 6200
1,2
lC
6201 - 6300
1,2,3
1140A
6301 - up 1,2,3,4
ERRATA:
On Page 3-1, in Paragraph 3-2, delete step (b)
and reletter following steps appropriately; change
step (c) to read:
“Set range switch to desired
operating mode. . . ”;
change step (d) to read: “Ad-
just coarse and fine voltage controls until. . ."
On Page 5-4, in Paragraph 5-16, change steps (b)
through (d) to read as follows:
b. Set METER switch to low current range and
RANGE switch to high voltage mode.
c, Turn on supply and adjust VOLTAGE controls
until front panel meter indicates exactly 300mA
(0.5 ampere for Model 6206B supplies).
d. Differential voltmeter should read 1.5 ±
0.045Vdc.
CHANGE 1:
In the replaceable parts table, make the following
change:
Terminal Strip: Add, HP Part No. 0360-0401.
CHANGE 2:
In the replaceable parts table, make the following
changes:
S1: Change to
HP Part No. 3101-1248.
In miscellaneous:
Panel, Front: Change to HP Part No. 06205-00004.
CHANGE 3:
In the replaceable parts table and on the schematic
make the following changes:
Tl: Change to HP Part No. 9100-2611.
The primary wiring of the unit is now as shown
below.
CHANGE 4:
The Serial Prefix of this unit has been changed to
1140A. This is the only change.
ERRATA :
in the instructions for auto-series operation in
paragraph 3-33, change the third sentence to
read:
“The value of Rx is this voltage divided by the
voltage programming current of the slave sup-
ply (l/Kp,
where K
p
is the resistance program
-
ming coefficient for constant voltage operation). “
The voltage programming current of the Model
6205B is 1/200 ohms per volt, or 5 milliamps.
On page A-1 under Description, add “6205B” to
the first sentence. Also change the second
sentence of the second paragraph to read, “The
trip voltage is determined by the setting of the
crowbar adjust control on the front panel (except
in the Model 6205B, where it is accessible through
a hole in the top cover). “ Also on page A-1,
change the last part of the third step under Oper-
ation to read “. . . output goes to O volts or a
small positive voltage. “
On the schematic and in the parts list, change
resistor R12 (for both dual supplies) to 1.4k
5% 3W 30 ppm, HP Part No. 0811-1804.
D-5
