Fluke 8845A FE 8845A & 8846A Users Manual - Page 23

A Accuracy, Additional Low Frequency Errors, Resistance - specification

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1 Introduction and Specifications Electrical Specifications 8845A Accuracy Accuracy is given as ± (% measurement + % of range) Range Frequency (Hz) 24 Hour (23 ± 1 °C) 100 mV 3 - 5 Hz 1.0 + 0.03 5 - 10 Hz 0.35 + 0.03 10 Hz - 20 kHz 0.04 + 0.03 20 - 50 kHz 0.1 + 0.05 50 - 100 kHz 100 - 300 kHz[1] 0.55 + 0.08 4.0 + 0.50 1 V 3 - 5 Hz 1.0 + 0.02 5 - 10 Hz 0.35 + 0.02 10 Hz - 20 kHz 0.04 + 0.02 20 - 50 kHz 0.1 + 0.04 50 - 100 kHz 100 - 300 kHz[1] 0.55 + 0.08 4.0 + 0.50 10 V 3 - 5 Hz 1.0 + 0.02 5 - 10 Hz 0.35 + 0.02 10 Hz - 20 kHz 0.04 + 0.02 20 - 50 kHz 0.1 + 0.04 50 - 100 kHz 100 - 300 kHz[1] 0.55 + 0.08 4.0 + 0.50 100 V 3 - 5 Hz 1.0 + 0.02 5 - 10 Hz 0.35 + 0.02 10 Hz - 20 kHz 0.04 + 0.02 20 - 50 kHz 0.1 + 0.04 50 - 100 kHz 100 - 300 kHz[1] 0.55 + 0.08 4.0 + 0.50 750 V 3 -- 5 Hz 1.0 + 0.02 5 - 10 Hz 0.35 + 0.02 10 Hz - 20 kHz 0.04 + 0.02 20 - 50 kHz 50 - 100 kHz [2] 100 - 300 kHz[1] [2] 0.1 + 0.04 0.55 + 0.08 4.0 + 0.5 [1] Typically 30 % reading error at 1 MHz [2] 750 Volt range is limited to 8 X 107 volt-Hertz 90 Days (23 ± 5 °C) 1.0 + 0.04 0.35 + 0.04 0.05 + 0.04 0.11 + 0.05 0.6 + 0.08 4.0 + 0.50 1.0 + 0.03 0.35 + 0.03 0.05 + 0.03 0.11 + 0.05 0.6 + 0.08 4.0 + 0.50 1.0 + 0.03 0.35 + 0.03 0.05 + 0.03 0.11 + 0.05 0.6 + 0.08 4.0 + 0.50 1.0 + 0.03 0.35 + 0.03 0.05 + 0.03 0.11 + 0.05 0.6 + 0.08 4.0 + 0.50 1.0 + 0.03 0.35 + 0.03 0.05 + 0.03 0.11 + 0.05 0.6 + 0.08 4.0 + 0.5 1 Year (23 ± 5 °C) 1.0 + 0.04 0.35 + 0.04 0.06 + 0.04 0.12 + 0.05 0.6 + 0.08 4.0 + 0.50 1.0 + 0.03 0.35 + 0.03 0.06 + 0.03 0.12 + 0.05 0.6 + 0.08 4.0 + 0.50 1.0 + 0.03 0.35 + 0.03 0.06 + 0.03 0.12 + 0.05 0.6 + 0.08 4.0 + 0.50 1.0 + 0.03 0.35 + 0.03 0.06 + 0.03 0.12 + 0.05 0.6 + 0.08 4.0 + 0.50 1.0 + 0.03 0.35 + 0.03 0.06 + 0.03 0.12 + 0.05 0.6 + 0.08 4.0 + 0.5 Temperature Coefficient/ °C Outside 18 to 28 °C 0.10 + 0.004 0.035 + 0.004 0.005 + 0.004 0.011 + 0.005 0.06 + 0.008 0.2 + 0.02 0.1 + 0.003 0.035 + 0.003 0.005 + 0.003 0.011 + 0.005 0.06 + 0.008 0.2 + 0.02 0.1 + 0.003 0.035 + 0.003 0.005 + 0.003 0.011 + 0.005 0.06 + 0.008 0.2 + 0.02 0.1 + 0.003 0.035 + 0.003 0.005 + 0.003 0.011 + 0.005 0.06 + 0.008 0.2 + 0.02 0.1 + 0.003 0.035 + 0.003 0.005 + 0.003 0.011 + 0.005 0.06 + 0.008 0.2 + 0.02 Additional Low Frequency Errors Error is stated as % of reading. Frequency 3HZ (slow) AC Filter 20HZ (medium) 10 - 20 Hz 0 0.25 20 - 40 Hz 0 0.02 40 - 100 Hz 0 0.01 100 - 200 Hz 0 0 200 Hz - 1 kHz 0 0 > 1 kHz 0 0 200HZ (fast) - - 0.55 0.2 0.02 0 Resistance Specifications are for 4-wire resistance function, 2 x 4-wire resistance, or 2-wire resistance with zero. If zero is not used, add 0.2 Ω for 2-wire resistance plus lead resistance, and add 20 mΩ for 2 x 4-wire resistance function. Measurement Method Current source referenced to LO input. 1-13

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Introduction and Specifications
Electrical Specifications
1
1-13
8845A Accuracy
Accuracy is given as
±
(% measurement + % of range)
Range
Frequency
(Hz)
24 Hour
(23
±
1
°
C)
90 Days
(23
±
5
°
C)
1 Year
(23
±
5
°
C)
Temperature
Coefficient/
°
C
Outside 18 to 28
°
C
3 – 5 Hz
1.0 + 0.03
1.0 + 0.04
1.0 + 0.04
0.10 + 0.004
5 – 10 Hz
0.35 + 0.03
0.35 + 0.04
0.35 + 0.04
0.035 + 0.004
10
Hz – 20 kHz
0.04 + 0.03
0.05 + 0.04
0.06 + 0.04
0.005 + 0.004
20 – 50 kHz
0.1 + 0.05
0.11 + 0.05
0.12 + 0.05
0.011 + 0.005
50 – 100 kHz
0.55 + 0.08
0.6 + 0.08
0.6 + 0.08
0.06 + 0.008
100 mV
100 – 300 kHz
[1]
4.0 + 0.50
4.0 + 0.50
4.0 + 0.50
0.2 + 0.02
3 – 5 Hz
1.0 + 0.02
1.0 + 0.03
1.0 + 0.03
0.1 + 0.003
5 – 10 Hz
0.35 + 0.02
0.35 + 0.03
0.35 + 0.03
0.035 + 0.003
10
Hz – 20 kHz
0.04 + 0.02
0.05 + 0.03
0.06 + 0.03
0.005 + 0.003
20 – 50 kHz
0.1 + 0.04
0.11 + 0.05
0.12 + 0.05
0.011 + 0.005
50 – 100 kHz
0.55 + 0.08
0.6 + 0.08
0.6 + 0.08
0.06 + 0.008
1 V
100 – 300 kHz
[1]
4.0 + 0.50
4.0 + 0.50
4.0 + 0.50
0.2 + 0.02
3 – 5 Hz
1.0 + 0.02
1.0 + 0.03
1.0 + 0.03
0.1 + 0.003
5 – 10 Hz
0.35 + 0.02
0.35 + 0.03
0.35 + 0.03
0.035 + 0.003
10
Hz – 20 kHz
0.04 + 0.02
0.05 + 0.03
0.06 + 0.03
0.005 + 0.003
20 – 50 kHz
0.1 + 0.04
0.11 + 0.05
0.12 + 0.05
0.011 + 0.005
50 – 100 kHz
0.55 + 0.08
0.6 + 0.08
0.6 + 0.08
0.06 + 0.008
10 V
100 – 300 kHz
[1]
4.0 + 0.50
4.0 + 0.50
4.0 + 0.50
0.2 + 0.02
3 – 5 Hz
1.0 + 0.02
1.0 + 0.03
1.0 + 0.03
0.1 + 0.003
5 – 10 Hz
0.35 + 0.02
0.35 + 0.03
0.35 + 0.03
0.035 + 0.003
10
Hz – 20 kHz
0.04 + 0.02
0.05 + 0.03
0.06 + 0.03
0.005 + 0.003
20 – 50 kHz
0.1 + 0.04
0.11 + 0.05
0.12 + 0.05
0.011 + 0.005
50 – 100 kHz
0.55 + 0.08
0.6 + 0.08
0.6 + 0.08
0.06 + 0.008
100 V
100 – 300 kHz
[1]
4.0 + 0.50
4.0 + 0.50
4.0 + 0.50
0.2 + 0.02
3 –- 5 Hz
1.0 + 0.02
1.0 + 0.03
1.0 + 0.03
0.1 + 0.003
5 – 10 Hz
0.35 + 0.02
0.35 + 0.03
0.35 + 0.03
0.035 + 0.003
10
Hz – 20 kHz
0.04 + 0.02
0.05 + 0.03
0.06 + 0.03
0.005 + 0.003
20 – 50 kHz
0.1 + 0.04
0.11 + 0.05
0.12 + 0.05
0.011 + 0.005
50 – 100 kHz
[2]
0.55 + 0.08
0.6 + 0.08
0.6 + 0.08
0.06 + 0.008
750 V
100 – 300 kHz
[1] [2]
4.0 + 0.5
4.0 + 0.5
4.0 + 0.5
0.2 + 0.02
[1] Typically 30 % reading error at 1 MHz
[2]
750 Volt range is limited to 8 X 10
7
volt-Hertz
Additional Low Frequency Errors
Error is stated as % of reading.
AC Filter
Frequency
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
Resistance
Specifications are for 4-wire resistance function, 2 x 4-wire resistance, or 2-wire resistance with zero. If zero is not used,
add 0.2
Ω
for 2-wire resistance plus lead resistance, and add 20 m
Ω
for 2 x 4-wire resistance function.
Measurement Method
...........................................
Current source referenced to LO input.