Basic power measurement procedure
If you need to customize the standard wattmeter configuration of the MODE key, perform the
following steps to make power measurements. The following procedure assumes that the 2600B is
already connected to the device under test (DUT) as explained in “DUT test connections” in the
Series 2600B User's Manual.
Hazardous voltages may be present on all output and guard terminals. To prevent electrical
shock that could cause injury or death, never make or break connections to the 2600B while
the output is on. Turn off the equipment from the front panel or disconnect the main power
cord from the rear of the 2600B before handling cables. Putting the equipment into an
output-off state does not guarantee that the outputs are powered off if a hardware or software
fault occurs.
To perform power measurements from the front panel:
1. If the instrument has two channels (2602B, 2604B, 2612B, 2614B, 2634B, and 2636B), press the
DISPLAY key to place it in single-channel display mode.
2. Set source function and value. Press the SRC key to select the voltage or current source function,
as required.
3. Set the output voltage or current to an appropriate value.
4. Move the cursor to the digit to change, then press the navigation wheel to enter the EDIT mode.
5. Use the RANGE keys to select a range that accommodates the value you want to set. For best
accuracy, use the lowest possible source range.
6. Enter the source value.
7. Press the ENTER key or the navigation wheel to complete editing.
8. Press the LIMIT key and set the voltage or current limit high enough for the expected voltage or
current across the DUT to be measured.
9. Press the LIMIT key.
10. Move the cursor to the digit to change, then press the navigation wheel to enter the EDIT mode,
as indicated by the EDIT indicator.
11. Enter the limit value, then press the ENTER key or the navigation wheel to complete editing.
12. Press the MEAS key as many times as needed to display power.
13. Press the OUTPUT ON/OFF control to turn the output on.
14. View the displayed reading (press the TRIG key if necessary).
15. When finished, press the OUTPUT ON/OFF control again to turn the output off.
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