Fluke 8842a DC Current Test, Displayed Reading, Slow Medium MIN MAX, Fast MIN MAX

Maintenance 6

PERFORMANCE TEST

Step Range

Table 6-5. Resistance Test

Input		Error From Input1 (in counts)
(Nominal)
	Slow		Medium	Fast2

120Ω3

220Ω3

3200Ω3

4200Ω3

52 kΩ

62 kΩ

720 kΩ

820 kΩ

9200 kΩ

10200 kΩ

112000 kΩ

122000 kΩ

1320 MΩ

1420 MΩ

1 – Using offset control

2 = 4 ½ digit counts

3 = Applies to 4-wire ohms only

0Ω (short)

10Ω

0Ω (short)

100Ω

0Ω (short)

1 kΩ

0Ω (short)

10 kΩ

0Ω (short)

100 kΩ

0Ω (short)

1 MΩ

0Ω (short)

10 MΩ

±40

±49

±4

±11

±3

±8

±3

±8

±3

±9

±3

±28

±4

±44

±60

±69

±6

±13

±5

±10

±5

±10

±5

±11

±6

±31

±7

±47

±20

±21

±3

±4

±2

±3

±2

±3

±2

±3

±2

±5

±2

±6

6-7. DC Current Test

The following procedure may be used to test the mA DC function:

1.Ensure the 8842A is on and has warmed up for at least 1 hour.

2.Select the mA DC function.

3.Connect the Current Source to the 2A and LO INPUT terminals.

4.For each step in Table 6-6, set the Current Source for the indicated input and verify that the displayed reading is within the limits shown for each reading rate.

5.Set the Current Source for zero mA and disconnect it from the 8842A.

Table 6-6. DC Current Test

STEP

1

2

3

4

RANGE	INPUT
200 mA	0 mA
200 mA	100 mA
2000 mA	0 mA
2000 mA	1000 mA

		DISPLAYED READING
SLOW		MEDIUM
MIN	MAX	MIN	MAX
-00.040	+00.040	-00.060	+00.060
99.920
	100.080	99.900	100.100
-000.04
	+000.04	-000.06	+000.06
999.56
	1000.44	999.54	1000.46

FAST

MIN	MAX
-00.20	+00.20

99.76100.24

-000.2 +000.2

999.41000.6

6-9