7½ Digit Graphical Sampling Multimeter Calibration Manual Section 3:
DMM7510-905-01 Rev. A / April 2015 3-5
Set up remote connections
For detail on remote communications, refer to the Model DMM7510 Reference Manual section
"Remote communications interfaces."
To perform calibration, set up remote communications as follows:
1. Connect the Model DMM7510 to the IEEE-488 bus of the computer using a shielded IEEE-488
cable, over the LAN, or directly to a computer through the RJ-45 port using a cross-over cable, or
through a USB device.
2. Make sure the primary address of the Model DMM7510 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 LAN
default port number is 23).
3. Turn the TSP
®
prompt on and disable showing errors by sending the following commands:
localnode.prompts = localnode.ENABLE
localnode.showevents = 0
4. Before the start of each calibration step, clear the event log of any errors using the following
command:
eventlog.clear()
5. At the end of each step, using the following commands to read any error messages:
code,message,severity = eventlog.next() -- Set variables to print the
error messages.
print('Error Code =', code)
print('Error Message =', message)
print('Error Severity =', severity)
6. Send each calibration command with print ("done") appended to allow the program to know
when operation is complete.
7. Some calibration steps may take up to five minutes to perform, so adjust the communication time-
out setting to prevent time-out errors.
Unlock calibration
To adjust calibration, you must unlock it by sending the calibration password:
cal.unlock("KI000CAL")
KI000CAL is the default password. You can change the password. Refer to cal.password (on page
4-17) for details.
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