13-8
Performance Verification
Voltage readback accuracy
Follow the steps below to verify that Model 2306 voltage readback accuracy is within
specified limits. The test involves setting the source voltage to specific values, as measured by
a digital multimeter, and then verifying that voltage readback readings are within required limits.
1.
With the power supply’s output off, connect the digital multimeter to the Model 2306
OUTPUT #1 SOURCE and SENSE terminals, as shown in
. Be sure to
observe proper polarity ( and SENSE + to INPUT HI; SOURCE - and
SENSE - to INPUT LO).
2.
Select the multimeter DC volts function, and enable auto-ranging.
3.
Select Channel #1 by pressing the
▲
and
▲
keys to toggle between Channel #1 and
Channel #2. Make sure actual voltage readings are being displayed (use DISPLAY), and
turn on the Model 2306 output.
4.
Verify voltage readback accuracy for each of the voltages listed in
. For each
test point:
• Set the Model 2306 output voltage to the indicated value as measured by the digital
multimeter. If it is not possible to set the voltage source precisely to the specified value,
use the closest possible setting and modify reading limits accordingly.
• Set compliance current to 0.25A (or 250mA).
• Allow the reading to settle.
• Verify that the actual Model 2306 voltage reading is within the limits given in the table.
1.
After changing connections to OUTPUT #2, repeat steps 1 through 4 for Channel #2 (use
the
▲
and
▲
keys to toggle between Channel #1 and Channel #2).
Table 13-3
Voltage readback accuracy limits
Model 2306 output
Voltage setting
1
Voltage readback limits
(2 Years, 18°C-28°C)
5.00V
4.995 to 5.005V
10.00V
9.992 to 10.008V
14.00V
13.990 to 14.010V
1
As measured by digital multimeter.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
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