Make sure to enter the correct date and time using the 24-hour clock. If the date is incorrect, it will not
save the proper date when the calibration is saved. For additional information about this command,
see localnode.settime() (on page 11-352).
Remote adjustment procedure
To perform adjustments, use the following procedure:
1. Connect the Series 3700A to the IEEE-488 bus of the computer using a shielded IEEE-488 cable,
such as the Keithley Instruments Model 7007, over the ethernet, or directly to a computer through
the ethernet port using a crossover cable.
2. Turn on the Series 3700A and allow it to warm up for at least two hours before performing
adjustments.
3. Make sure the primary address of the Series 3700A is the same as the address specified in the
program that you will be using to send commands (the GPIB default address is 16; the ethernet
default port number is 23).
4. Turn the TSP
®
prompt and errors off and unlock the calibration and adjustment function by
sending the following commands:
localnode.prompts=0
localnode.showerrors=0
dmm.reset()
errorqueue.clear()
dmm.calibration.unlock("KI003706")
When remotely changing the unlock code, send the dmm.calibration.unlock() (on page 11-158)
command twice, first with the present code, then with the new code.
5. Check for errors after sending each adjustment command by using the following command:
print(errorqueue.count)
6. Send each adjustment command with print ("done") appended to allow the program to know
when operation is complete. Some adjustment steps may take up to five minutes to perform, so
the communication time-out setting should be adjusted, because otherwise time-out errors might
occur.
DC volts adjustment
1. Install the 4-wire short on the analog backplane connector inputs of the Series 3700A.
2. Allow the instrument to settle for five minutes.
3. Perform the following adjustment steps (DC Cal Step 0 through Step 5):
To Next Page
Loading...
Need help?
General
