Calibration-PS
501
0
Internal Adjustment Procedure
d.
CHECK-that the drnm display reads from -1.0 mA to
+
1.0 mA.
e. ADJUST-R1321,
-
1
0, for a drnm reading from
-1.0 mA to +1.0 mA.
f. Turn the OUTPUT OFF.
g.
Remove the lead from the POSITIVE connector on the
PS 501 0 front panel.
1
1.
Adjust
+I
0 and
+
Max
I
Adj
Connect the POSITIVE front panel connector through a
jumper to the
+
current input on the dmm. Connect the
common terminal to the
-
current input on the dmm.
Press the following buttons in the order listed (10 V
output from both supplies):
SUPPLY SELECT
TRACK
CURRENT
0
ENTER
CHECK-that the display reads from
-
1
.O
mA to
+
1
.O
mA.
ADJUST-41311, +I 0, for a display reading from
-
1.0 mA to
+
1.0 mA.
Turn the OUTPUT OFF.
Press the following buttons in the order listed (10 V
output from both supplies):
SUPPLY SELECT
TRACK
CURRENT
1
6
ENTER
Turn the OUTPUT on.
CHECK-for a drnm reading from
+
1595 mA to
+
1605 mA.
ADJUST-R1211,
+
Max
I
Adj, for a drnm reading
from
+
1595 mA to
+
1605 mA.
Turn the OUTPUT OFF.
Remove the lead from the POSITIVE connector on the
PS
501 0.
Adjust
-Max
I Adj
Connect the positive lead of the drnm to the front panel
NEGATIVE connector. Connect the
-
lead of the drnm
to the front panel common terminal.
Press the following buttons in the order listed (10
V
output from both supplies):
SUPPLY SELECT
TRACK
CURRENT
1
6
ENTER
Turn the OUTPUT ON.
CHECK-for a drnm display reading from
+I595 mA
to
+
1605 mA.
ADJUST-R1111, -Max I Adj, for a display reading
from
+
1595 mA to
+
1605 mA.
Turn the OUTPUT OFF
Remove all connections from the PS 501 0.
Turn the power module off.
Replace the jumper J1320 in the normal position. See
Fig.
6-1.
This completes the internal adjustment procedure.