Dc Current - Tektronix DMM4040 User Manual

DMM4040/4050
Users Manual
4040/4050 Accuracy
Accuracy is given as
Range
10
100
1 k
10 k
100 k
1 M
10 M
100 M
1 G
Additional Ohms Errors
Digits
6½
6½
5½
5½
4½

DC Current

Input Protection....................................................... Tool-accessible 11 A/1000 V and 440 mA/1000 V fuses, limits of
Common Mode Rejection ............................................140 dB at 50 or 60 Hz 0.1 % (1 k
Normal Mode Rejection .......................................... 60 dB for NPLC of 1 or greater with analog filter off and power line
Analog Filter............................................................ When using the analog filter, specifications are relative to within one
Input Characteristics
Range
100 A
1 mA
10 mA
100 mA
[3]
400 mA
[2]
1 A
[1]
3 A
10 A
[1] Part of 10 A range.
[2] Available on the front panel terminal only.
[3] 400 mA continuously; 550 mA for 2 minutes on, 1 minute off.
1-20
(% measurement + % of range)
24 Hour 90 Days
(23 1 C) (23 5 C)
0.003 + 0.01 0.008 + 0.03
0.003 + 0.003 0.008 + 0.004
0.002 + 0.0005 0.008 + 0.001
0.002 + 0.0005 0.008 + 0.001
0.002 + 0.0005 0.008 + 0.001
0.002 + 0.001 0.008 + 0.001
0.015 + 0.001 0.02 + 0.001
0.3 + 0.01 0.8 + 0.01
1.0 + 0.01 1.5 + 0.01
NPLC
100
10
1
0.2
0.02
Resolution
4½ Digits
10 nA
100.0000 A
1.000000 mA 100 nA
10.00000 mA
1 A
100.0000 mA
10 A
400.000 mA
100 A
1.000000 A
100 A
3.00000A 1 mA
10.00000 A 1 mA
1 Year
(23 5 C)
0.01+ 0.03
0.01 + 0.004
0.01 + 0.001
0.01 + 0.001
0.01 + 0.001
0.01 + 0.001
0.04 + 0.001
0.8 + 0.01
2.0 + 0.01
Additional NPLC Noise Error
0 % of range
0 % of range
0.001 % of range
0.003 % of range 7 m
0.017 % of range 15 m
400 mA continuous 550 mA for 2 minutes on, 1 minute off.
frequency 0.1 %
100 dB for NPLC of 1 or greater with analog filter on and power line
frequency 0.1 %
hour of using the ZERO function for that range and NPLC setting.
Resolution
Shunt Resistance
5½ Digits 6½ Digits
1 nA 100 pA
10 nA 1 nA
100 nA 10 nA
100 nA
1 A
10 A 1 A
10 A 1 A
100 A 10 A
100 A 10 A
Temperature
Coefficient/ C
Outside 18 to 28 C
0.0006 + 0.0005
0.0006 + 0.0005
0.0006 + 0.0001
0.0006 + 0.0001
0.0006 + 0.0001
0.001 + 0.0002
0.003 + 0.0004
0.15 + 0.0002
0.6 + 0.0002
unbalance)
Burden Voltage
(Ohms)
100 <0.015 V
100 <0.15 V
1 <0.025 V
<0.25 V
1
<0.50 V
1
<0.05 V
0.01
<0.15 V
0.01
<0.5 V
0.01