Fluke 8842A Instruction Manual page 22

8842A
Instruction Manual
Accuracy
NORMAL (S) READING RATE ...............±(% of Reading + Number of Counts)
RANGE
20
200
2 k
20 k
200 k
2000 k
20 M
1. Within one hour of ohms zero, using offset control.
2. Relative to calibration standards.
3. Applies to 4-wire ohms only.
4. When offset control is not used the number of counts are 50, 70, 90 and 90 for 24 hours,90 day, 1
year, and 2 year respectively.
5. When offset control is not used the number of counts are 5, 7, 9 and 9 for 24 hours, 90 day, 1 year,
and 2 year respectively.
MEDIUM AND FAST READING RATES........In medium rate, add 2 counts to the number of counts for
Operating Characteristics
TEMPERATURE COEFFICIENT ............Less than 0.1 x accuracy specification per C from 0 C to 18 C
MEASUREMENT CONFIGURATION .....2-wire or 4-wire in all ranges accept 20 range. Only 4-wire
OPEN CIRCUIT VOLTAGE ....................Less than 6.5V on the 20 through the 200 k
INPUT PROTECTION.............................To 300V rms.
1-8
24 HOURS 23±1 C
3 4
0.007 + 30
3 5
0.0040 + 3
0.0025 + 2
0.0025 + 2
0.0025 + 2
0.023 + 3
0.023 + 3
90 DAY 23±5 C 1 YEAR 23±5 C
4
0.009 + 40
5
0.007 + 4
0.005 + 3
0.005 + 3
0.006 + 3
0.025 + 3
0.040 + 4
the 200 through 200 k ranges, 3 counts for the 2000
k and 20 M ranges, and 20 counts for the 20
In fast reading rate, use 3 (4½ digit mode) counts for the
number of counts for the 200 range, 20 (4½ digit mode)
counts for the 20 range and 2 (4½ digit mode) counts for
all other ranges.
and 28 C to 50 C.
configuration is allowed in the 20
than 13V on the 2000 k and 20 M ranges.
1
.
2 YEARS 23±1 C
4
0.012 + 40 0.015 + 40
5
0.010 + 4 0.012 + 4
0.008 + 3 0.010 + 3
0.008 + 3 0.010 + 3
0.010 + 3 0.012 + 3
0.027 + 3 0.030 + 3
0.042 + 4 0.050 + 4
range.
ranges. Less
4
5
range.