Keithley 3700 Series User Manual

Section 12: Troubleshooting guide Series 3700A System Switch/Multimeter Reference Manual
12-8 3700AS-901-01 Rev. D/June 2018
Communicate using VISA communicator
There are several interactive communication utilities that you can use to communicate with LAN
instruments:
• The KIOL installs the Keithley Communicator.
• NI VISA (full version) installs the NI VISA Interactive Control utility, which can also be launched
from NI-MAX.
• Keysight has a similar utility called Interactive IO that gets installed with their IO Libraries Suite.
All these utilities require you to enter the VISA resource string for your instrument. See Communicate
with the instrument (on page 2-7) for more information on the VISA resource string formats.
HyperTerminal, which comes with Microsoft Windows, also allows you to connect to the raw socket
port of the instrument.
WireShark
WireShark is an open source LAN packet sniffer. You can run it to spy on all the packets going across
a network. It allows you to filter what you spy on so that you can narrow the content down to just what
you are interested in. For example, you could check just web page packets (http) or all packets being
sent by a device on a certain IP address.
Refer to the WireShark documentation for information. WireShark can be downloaded from
www.wireshark.org (http://www.wireshark.org).
Testing the display, keys, and channel matrix
You can test operation of the keys, display, and channel matrix from the front panel of the instrument.
Verify front panel key operation
You can verify that the instrument is properly reading front panel key presses.
To verify key operation:
1. From the front panel, select MAIN MENU > DISPLAY > TEST > KEYS. The message "No keys
pressed" is displayed.
2. Press a key. The name of the key is displayed. For a list of key values, see display.sendkey() (on
page 11-139).
3. Press EXIT (LOCAL) twice to return to the menu.
Verify display operation
You can verify that all the pixels on the vacuum fluorescent display (VFD) are working.
To verify VFD operation:
1. From the front panel, select MAIN MENU > DISPLAY > TEST > DISPLAY-PATTERNS. A pattern
is displayed.
2. Press the navigation wheel to display the next pattern.
3. When you have viewed the patterns, press EXIT to return to the menu.

Keithley 3700 Series Specifications

General

Brand	Keithley
Model	3700 Series
Category	Multimeter
Language	English