Introduction and Specifications
Electrical Specifications
1
Additional Low Frequency Errors
Error is stated as % of reading.
Frequency
AC Filter
3HZ (slow)
20HZ (medium)
200HZ (fast)
10 – 20 Hz
0
0.25
–
20 – 40 Hz
0
0.02
–
40 – 100 Hz
0
0.01
0.55
100 – 200 Hz
0
0
0.2
200 Hz – 1 kHz
0
0
0.02
> 1 kHz
0
0
0
Frequency
Gate Times ............................................................. Programmable to 1 s, 100 ms, and 10 ms
Measurement Method ............................................. Flexible counting technique. AC-coupled input using the ac voltage
measurement function.
Settling Considerations ........................................... When measuring frequency or period after a dc offset voltage change,
errors may occur. For the most accurate measurement, wait up to
1 second for the input blocking capacitor to settle.
Measurement Considerations ................................. To minimize measurement errors, shield inputs from external noise
when measuring low-voltage, low-frequency signals.
4040/4050 Accuracy
Accuracy is given as
±
% measurement
Range
Frequency
24 Hour
(23
±
1
°
C)
90 Days
(23
±
5
°
C)
1 Year
(23
±
5
°
C)
Temperature
Coefficient/
°
C
Outside 18 to 28
°
C
100 mV to
1000 V
[1][2]
3 – 5 Hz
0.1
0.1
0.1
0.005
5 – 10 Hz
0.05
0.05
0.05
0.005
10 – 40 Hz
0.03
0.03
0.03
0.001
40 Hz – 300 kHz
0.006
0.01
0.01
0.001
300 kHz – 1 MHz
0.006
0.01
0.01
0.001
[1] Input >100 mV. For 10 – 100 mV, multiply percent measurement error by 10.
[2] Limited to 8 X 10
7
volt-Hertz
Gate Time vs. Resolution
Gate Time
Resolution
0.01
5½
0.1
6½
1.0
6½
Additional Low Frequency Errors
Error stated as percent of measurement for inputs >100 mV. For 10 – 100 mV, multiply percent by 10.
Frequency
Resolution
6½
5½
4½
3 – 5 Hz
0
0.12
0.12
5 – 10 Hz
0
0.17
0.17
10 – 40 Hz
0
0.2
0.2
40 – 100 Hz
0
0.06
0.21
100 – 300 Hz
0
0.03
0.21
300 Hz – 1 kHz
0
0.01
0.07
> 1 kHz
0
0
0.02
1-19
Summary of Contents for DMM4040
Page 1: ...DMM4040 and DMM4050 Digital Multimeter Technical Reference 077 0362 01...
Page 6: ...DMM4040 and DMM4050 Technical Reference iv...
Page 8: ...DMM4040 and DMM4050 Technical Reference vi...
Page 10: ...DMM4040 and DMM4050 Technical Reference viii...
Page 34: ...DMM4040 4050 Technical Reference Manual 2 2...
Page 42: ...DMM4040 4050 Technical Reference Manual 3 2...
Page 75: ...Appendices Appendix Title Page A Verification Forms A 1 B Example Adjustment Program B 1...
Page 76: ...DMM4040 4050 Technical Referencel...
