Section 5: Basic Digital Multimeter (DMM) Operation
Series 3700 System Switch/Multimeter User's Manual
5-12
3700S-900-01 Rev. C / July 2008
Voltage measurement procedure
WARNING
If both the analog backplane connector and a switching
module's terminals are connected at the same time, all
wiring and connections must be rated to the highest
voltage that is connected. For example, if 300V is
connected to the analog backplane connector, the test lead
insulation for the switching module must also be rated for
300V.
CAUTION
Do not apply more than maximum input levels indicated or
instrument damage may occur. The voltage limit is subject to
the 8 × 10
7
VHz product.
Perform the following steps to change a DMM function, range, NPLC, autozero
settings, filter settings, and so on. Unique features for a particular DMM function
are covered under that DMM section. For example,
dmm.offsetcompensation
is discussed under 4-wire ohms and RTD
temperature measurement sections.
1. Press the
OPENALL
key to open all switching channels.
2. Select the voltage measurement function by pressing the
CONFIG
key, and
then pressing the
DMM
key. FUNC flashes on, then off. Press the
ENTER
key or wheel.
Function?
is displayed on the first line of the VFD display and
the second line displays available functions. Use the left or right arrow keys
or the knob to select DCV or other functions.
3. Use the
RANGE
and
keys to:
Select a measurement range
Adjust Autorange, Range, NPLC, Autodelay, Autozero, Filter, Limit,
Linesync, Math, REL, Aperture, and Digits after selecting the desired
function under the Config DMM menu
Press the
AUTO
key to select autoranging (AUTO annunciator turns on)
4. Apply the voltage(s) to be measured.
5. If using a 3700 switch card, perform the following steps to assign a range of
channels and assign the channel a DMM configuration, such as DCV, ACV,
or user defined "my_dmm_cong1":
a. Using the navigation wheel:
Press once to select 3700 card slot number and adjust 1-6.
Press a second time to select the start channel number.