Section 3: Basic DMM operation
Model 2110 5½ Digit Multimeter Reference Manual
3-4
2110-901-01 Rev. C/August 2013
Ratio measurements
This feature calculates the ratio of an input DC voltage to a reference DC voltage using the following
equation:
This function only applies to DC voltage measurement.
Use the following procedure and commands to perform basic measurements. Refer to
(on page 3-37) for details about setting measurement speed and
resolution. It also provides information on using other features and settings to optimize measurement
performance.
Front-panel operation
Perform the following steps to perform ratio calculations:
1. Press
DCV
to select the DC voltage function.
2. Select a measurement range (auto or manual) for the input signal:
•
Autorange is the power-on default. If manual ranging is selected (MAN indicator on), press
SHIFT
and
then
ESC
(
AUTO
) to select autorange.
•
For manual ranging, press the
RANGE
▲ and ▼ keys to select a measurement range.
3. As shown below, connect the input and reference signals to the instrument:
a. Connect the DC input signal to the INPUT HI and LO terminals.
b. Connect the reference signal to the SENSE HI and LO terminals.
c. Connect the SENSE LO terminal to the INPUT LO terminal.
4. Press
CONFIG
and use the ◄ and ► keys to display
RATIO
, and then press
ENTER
(RAT
indicator turns on).
5. Observe the ratio reading on the display.
To disable ratio, press any function key.