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Getting Started
2001-900-01 Rev. K/ August 2010 2-9
Step 1
Connect a DC voltage source
The Model 2001 can be used to make DC voltage
measurements in the range of ±10nV to ±1100V. Low level
measurement techniques need to be used at resolutions of 5.5
digits and more. See paragraph 3.4.1 for low level
measurement considerations.
WAR NI NG
The maximum input voltage between
INPUT HI and INPUT LO is 1100V peak.
The maximum common-mode voltage
(voltage between INPUT LO and chassis
ground) is 500V peak. Exceeding these
values may create a shock hazard.
1. Select the front input jacks with the INPUTS button
(outer position for front jacks, inner position for rear).
2. Using the set of supplied test leads, connect the Model
2001 to a DC voltage source (e.g., a battery) as shown in
Figure 2-4.
Step 2
Select a range and display a reading
Use the RANGE keys to select autoranging or a manual
range:
1. As indicated by the AUTO annunciator, bench reset
returns the instrument to autoranging. Pressing the
AUTO range key toggles autoranging.
2. You can select a different range with the RANGE and
RANGE keys. When using manual ranging, be sure
to use a range high enough for the signal level. If the
“Overflow” message is displayed on a manual range,
select the next higher range until you obtain an on-range
reading. Use the lowest possible range to obtain the best
accuracy and resolution.
3. For the 200mV range, short the probe ends and allow the
reading to settle. Press REL to null any offsets. Leave
REL enabled while making measurements. Reconnect
the probes to the voltage source.
A reading can be held by pressing the
ENTER key. This freezes the display until
the EXIT key is pressed, returning the
display to normal. If the ENTER key is
pressed instead, the display is updated
with another reading.
Step 3
View the default configuration
The DCV function has the following defaults for speed,
filter, and resolution:
Measurement speed (integration time) Normal (1
power line cycle; 16.7msec for 60Hz, 20msec for 50Hz
and 400Hz).
Digital filter Advanced, 10 readings, 1% noise
tolerance, moving average, enabled.
Display resolution 6.5 digits.
If these settings are not sufficient for your DCV
measurement, they can be changed through the DCV
configuration menu:
1. Press the CONFIG key and then the DCV or ENTER
key. The instrument displays the following menu:
CONFIGURE DCV
SPEED FILTER RESOLUTION
Pressing CONFIG, then ENTER displays
the top level of the configuration menu for
the present function.
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Typical DC voltage connections
NEXT
DISPLAY
PREV
POWER
DCV ACV DCI ACI Ω2 Ω4
FREQ TEMP
REL TRIG STORE RECALL
INFO LOCAL CHAN SCAN CONFIG MENU EXIT ENTER
RANGE
AUTO
FILTER MATH
RANGE
2001 MULTIMETER
SENSE
Ω 4 WIRE
HI
INPUT
LO
INPUTS
CAL
500V
PEAK
F
R
FRONT/REAR
2A 250V
AMPS
350V
PEAK
1100V
PEAK
Model 2001
Caution: Maximum Input = 1100V peak
DC Voltage
Source
Input Resistance = 10MΩ on 1000V and 200V ranges ;
> 10GΩ on 20V, 2V and 200mV ranges.
= 1MΩ on DCV peak spikes measurement.
23


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