B - Verification and Calibration
148
Load
resistor
DC ammeter
-
+
Load
resistor
DC ammeter
-
+
+
-
External
DC supply
A. B.
C.
is removable
Current
monitor
DC voltmeter
400 ohm
-
+
NOTE: Connector
is removable
NOTE: Connector
is removable
NOTE: Connector
External
DC voltmeter
Output 1
DVM connector
-S - + +S
-S - + +S-S - + +S
-S - + +S
- +
D.
Verification load resistor = 400 ohms
Calibration load resistor = 800 ohms
Current shunt = 15A, 0.10 ohms
External
DC supply
-
+
(connect only
for verification)
connector
connect this lead only
when calibrating the unit
Figure B-1. Verification and Calibration Test Setup
Performing the Verification Tests
The following procedures assume you understand how to operate the dc source from the front panel as
explained in chapter 5. Also, when performing the verification tests from an GPIB controller, you may
have to consider the relatively slow settling times and slew rates of the dc source as compared to
computer and system voltmeters. Suitable WAIT statements can be inserted into the test program to give
the dc source time to respond to the test commands.
Perform the following tests for operation verification in the order indicated.
1. Turn-On Checkout
2. Voltage Programming and Measurement Accuracy
3. Current Programming and Measurement Accuracy

Turn-On Checkout

NOTE: The dc source must pass turn-on selftest before you can proceed with the verification
tests.
Perform the Turn-On Checkout as directed in chapter 4.