Section 4: Basic DMM operation
Series 3700A System Switch/Multimeter Reference Manual
4-46
3700AS-901-01 Rev. D/June 2018
Connections to test continuity using a switching module are shown below. Because this is a 2-wire
ohm measurement, channels 1 through 40 of a 40-channel switching module can be used.
Figure 65: Continuity connections using a switching module
Continuity testing procedure
If the Series 3700A is in remote, place the instrument in local by pressing the
LOCAL
key
(or the
EXIT
key).
Refer to DCV measurements for function configuration and menus.
1. Select the continuity measurement function:
a. Press the
CONFIG
key, and then press the
DMM
key.
FUNC
flashes on, then off.
b. Press the
ENTER
key or navigation wheel . The "Function?" menu is displayed.
c.
Turn the navigation wheel to highlight
CONT
, then push the navigation wheel to select it.
d. Press the
EXIT
key to leave the "Function?" menu.
2. Set threshold resistance:
a. Press the
CONFIG
key, and then press the
DMM
key.
FUNC
flashes on, then off.
b. Turn the navigation wheel to scroll to the
THRESHOLD
menu item, and then press the
ENTER
key.
c.
Using the navigation wheel , set the resistance to be used as a threshold (1
Ω to 1000 Ω
.
d. Press the
ENTER
key
to set.
e. Press the
EXIT
key
to leave the "CONT ATTR MENU."
3. Apply the resistance to be tested. If using a switching module, perform the following steps to
close the appropriate channel.
a. Use the navigation wheel to dial in the channel number.
b. Press the
CLOSE
key.
4. Press the
TRIG
key and observe the displayed reading.
5. To measure other switching channels, repeat steps 5 and 6.
If the measured circuit is below the set threshold level, the instrument will display the resistance
readings. If the measured circuit is above the threshold level, the instrument will display the message
"OPEN."
6. To disable continuity testing, select a different function (for example, DCV).
7. When finished, press the
OPENALL
key to open all channels.
