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DMM4040 and 4050
Safety
and Installation
Instructions
Electrical
Input
Protection
.
1000 V all ranges
Overrange ..
...
.
....
...
.
20
%
on all
ranges
except 1000 V dc, 1000
V
ac (4050),
750 V ac (4040),
Diode,
and
10
A ranges
Remote Interfaces
RS-232C, DTE 9-pin, 1200 to 230400 baud (RS-232C to
USB
cable
available to connect the Meter to a PC
USB
port.
See
Accessories)
IEEE
488.2
LAN
and
"Ethernet
10/100 base
T
with
DHCP
(for IP_ADDRess) option"
Warranty
Three
years
Electrical Specifications
Accu
racy
specifications
are valid for
61',
digit resolution mode after at least a 1-hour warm-up with Auto Zero enabled.
24-hour specifications are
relative
to calibration standards and assume a
controlled
electromagnetic
environment
per
EN
61326-1:2000-11
DC Voltage Specifications
Maximum
Input
..... ........ .... '" ..
...
...... ....
.
..
....
1000 V on any range
Common Mode Rejection
....
.
.
.
..
140 dB
at
50 or 60
Hz
±O.1
%
(1 kO unbalance)
Normal
Mode
Rejection .... ..
.
. .... 60 dB for NPLC
of
1
or greater with analog filter off and power line
frequency ±0.1
%
100 dB for NPLC of
1
or greater with analog filter on and power
line
frequency
±0.1 %
Measurement Method
....
......
..... .
.... Multi-ramp AID
AID
Linearity
...
...........
.....
..
..
..
..
.,.
..
0.0002
%
of measurement +0.0001
%
of range
Input
Bias
Curren!..
..
...
...
.
. ....
..
..
<30 pA
at
25 °C
Autozero Off Operation
... .
. ...
Following instrument warm-up at
calibration
temperature ±1 °c and
less than 10
minutes,
add
error:
0.0002
%
range additional error
+5 !IV
.
Analog Fi lter
.....
.
.......
...
...... ...
....
...
.....
. ..
.......
...
.
When using the analog
filter,
specifications are relative to within one
hour
of using the ZERO function for
that
range and NPLC
setting
.
DC
Ratio ..
..
......
...
Accuracy is
+1-
(Input accuracy
+
Referen
ce
accuracy), where
Input
accuracy
=
DC
Voltage accuracy
for the HI
to LO
Input
(in ppm of the
Input voltage), and Reference accuracy
=
DC
Voltage
accuracy
for the
HI
to
LO
(Sense) Reference
(in
ppm of
the Reference
voltage).
•
Settling Considerations
.... ....
...
..... .......
...
....
.
..
...
.
Measurement
settling
times
are affected by source impedance, cable
dielectric
characteristics,
and input Signal
changes
.
Input Characteristics
Range
Resolution
Resolution
Input Impedance
4'1,
Digits
5'/,
Digits
6'/'
Digits
100 mV
100.0000
mV
10
!IV
1
!IV
100
nV
10 MO or >10 GO
1'
1
1 V
1.000000
V
100 !IV
1 0 llV
1 IlV
10 MO or
>10
GO
1'1
10 V
10.00000 V
1 mV
100
!IV
10llV
10 MO
or >10 GO
I '
I
100
V
100.0000 V
10mV
1 mV
100llV
10
MO ±1%
1000 V
1,000.000
V
100 mV
10
mV
1
mV
10
MO±1%
[1 [
Inputs beyond
+14
V
are
clamped
through 200
kO
typical.
10
MO
is
default
input
impedance.
22
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