Fluke 8842a instruction manual Specifications

Introduction and Specifications 1

SPECIFICATIONS

1-4. SPECIFICATIONS

Specifications for the 8842A are given in Table 1-1. External dimensions are shown in Figure 1-1.

Table 1-1. Specifications

DC VOLTAGE

Input Characteristics

RANGE

20 mV

200 mV

2V

20V

200V

1000V

FULL SCALE 5ñ

DIGITS

19.9999 mV

199.999 mV

1.99999V

19.9999V

199.999V

1000.00V

RESOLUTION

5ñ DIGITS	4ñ DIGITS*
0.1μV	1 μV
1μV	10 μV
10 μV	100 μV
100 μV	1 mV
1 mV	10 mV
10 mV	100 mV

INPUT

RESISTANCE

≥10,000 MΩ

≥10,000 MΩ

≥10,000 MΩ

≥10,000 MΩ

10 MΩ

10 MΩ

*4ñ digits at the fastest reading rate.

Accuracy

NORMAL (S) READING RATE ±(% of Reading + Number of Counts)

RANGE

20 mV2

200 mV2

2V

20V

200V

1000V

24 HOURî 23±1°C

0.0050 + 203

0.0030 + 2

0.0015 + 2

0.0015 + 2

0.0015 + 2

0.0020 + 2

90 DAY 23±5°C

0.0070 + 303

0.0045 + 3

0.0025 + 2

0.0030 + 2

0.0030 + 2

0.0035 + 2

1 YEAR 23±5°C

0.0100 + 303

0.0070 + 3

0.0030 + 2

0.0035 + 2

0.0035 + 2

0.0045 + 2

2 YEAR 23±5°C

0.0120 + 403

0.0100 + 4

0.0050 + 3

0.0060 + 3

0.0060 + 3

0.0070 + 3

1.Relative to calibration standards.

2.Within one hour of dc zero, using offset control.

3.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.

4.When offset control is not used the number of counts are 5, 7, 9 for 24 hours, 90 day, 1 year, and 2 year respectively.

MEDIUM AND FAST RATES:	................In medium rate, add 3 counts (20 counts on 20 mV Range) to
	number of counts. In fast rate, use 2 (4½ digit mode) counts
	(30 counts on 20 mV range) for the number of counts

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