Fluke 8842A 5 1/2
Digital Multimeter
The 8840A with higher accuracy and
sensitivity
- 0.003% basic 1 year dc accuracy
- Increased resolution with 20 mV, 200 mA and 20 ohm ranges
- Extended calibration cycle with 2 year specifications
Specifications
DC voltage
Input
characteristics
Full scale
Resolution Input
Range
5 1/2 Digits 5 1/2 Digits 4 1/2*
Digits Resistance
20 mV 19.9999 mV
0.1 mV 1 mV ³
10,000 MW
200 mV 199.999 mV
1 mV 10 mV
³ 10,000 MW
2V 1.99999V 10 mV
100 mV ³ 10,000 MW
20V 19.9999V 100 mV
1 mV ³ 10,000 MW
200V 199.999V 1 mV 10 mV
³ 10 MW
1000V 1000.00V 10 mV 100 mV ³ 10
MW
* 4 1/2 digits at the
fastest reading rate
Accuracy
Normal
(S) reading rates: ± (% of reading + number of counts)
24 hour(1) 90
day 1 year 2 year
Range 23 ±
1°C 23 ± 5°C 23 ± 5°C 23 ± 5°C
20
mV(2) 0.0050+20 0.0070+30 0.0100+30 0.0120+40
200
mV(2) 0.0030+2 0.0045+3 0.0070+3 0.0100+4
2V 0.0015+2 0.0025+2 0.0030+2 0.0050+3
20V 0.0015+2 0.0030+2 0.0035+2 0.0060+3
200V 0.0015+2 0.0030+2 0.0035+2 0.0060+3
1000V 0.0020+2
0.0035+2 0.0045+2 0.0070+3
(1) Relative to
calibration standard
(2) Within one hour of dc zero, using offset
control
Medium and fast rates: in medium rate, add 3 counts (20
counts on 20 mV range) to number of counts.
In fast rate, use two 4 1/2 digit
counts (30 counts on 20 mV range) for the number of counts
Operating
characteristics
Temperature coefficient: > ± (0.0006% of
reading + 0.3 count) per °C from 18°C to 0°C and 28°C to 50°C
Maximum input: 1000V dc or peak ac on any range
Noice
rejection: automatically optimized at power-up for 50, 60 or 400
Hz
Rate Readings/ Filter NMRR(2) Peak
NM CMRR(3)
Seconds (1)
Signals
S 2.5(5) Analog > 98 dB
20V > 140
dB
& or
Digital 2xFS(4)
M 20(6) Digital
> 45 dB 1xFS > 100
dB
F 100 None -
1xFS > 60 dB
(1) Reading rate with internal trigger and 60 Hz power line
frequency.
(2) Normal mode rejection ratio, at 50 Hz or 60 Hz ± 0.1%. The
NMRR
for 400 Hz ± 0.1% is 85 dB in S rate and 35 dB in M rate.
(3)
Common mode rejection ratio at 50 Hz or 60 Hz ± 0.1% with 1 kohm in series
with either lead. The CMRR is > 140 dB at dc for all reading
rates.
(4) 20V or 2 times full scale whichever is greater, not to exceed
1000V.
(5) Reading rate - .31 rdg/sec in the 20 mV, 20 ohm, 200 mA dc
ranges.
(6) Reading rate - 1.25 rdg/sec in the 20 mV, 20 ohm, 200 mA dc
ranges.
True-RMS AC Voltage
(Option 09)
Input
characteristics
Full Resolution
Scale 5
1/2 4 1/2* Input
Range 5 1/2
Digits Digits Digits Resistance
200
mV 199.999 mV 1 mV
10 mV 1 MW
2V 1.99999V 10 mV 100 mV
shunted
20V 19.9999V 100 mV
1 mV by < 100
pF
200V 199.999V 1 mV 10 mV
700V
700.00V 10 mV 100 mV
Medium and fast reading rates: in medium rate, add 50 counts to
the number of counts.
In fast rate the specifications apply for sinewave
inputs ³ 1000 4 1/2 digit counts and > 100
Hz.
Nonsinusoidal inputs: for nonsinusoidal inputs
³ 10,000 counts with frequency components
£ 100 kHz, add the following % of reading to the accuracy
specifications.
Fundamental Crest factor
frequency
1.0-1.5 1.5-2.0 2.0-3.0
45
Hz to 20 kHz 0.05% 0.15% 0.3%
20 Hz to 45 Hz
&
20 kHz to 50 kHz 0.2% 0.7% 1.5%
Operating characteristics
Maximum input: 700V
rms, 1000V peak or 2x10 EXP 7 volt-hertz product (whichever is less) for any
range.
Temperature coefficient: ± (% of reading + numbers of counts)
per °C, 0°C to 18°C and 28°C to 50°C.
Frequency in Hertz
For
inputs 20-20k 20k-50k 50k-100k
³ 10,000
counts 0.019 + 9 0.021 +
9 0.027 + 10
³ 1,000
counts
0.019 + 12 0.021 + 15 0.027 +
21
Common mode rejection: > 60 dB at 50 Hz or 60 Hz with 1 kohm in either lead
Current
Input
characteristics
Full
scale Resolution
Range 5 1/2
Digits 5 1/2 Digits 4 1/2 Digits(1)
200
mA(2) 199.999 mA 1 uA 10
uA
2000mA 1999.99 mA 10 uA 100 uA
(1) 4 1/2 digits at the fastest reading rate
(2) 200
mA range is dc only
DC accuracy
Normal (S) reading rate: ± (% of reading +
number of counts)
Options
05:
IEEE-488 interface
09: True-RMS AC
General Specifications
Size: H 89, W 216, D 371 mm
Weight: 3.4
kg