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Table 3b DC mA Test:

Step

Range

Source

1

40mA

30.00mA

 

 

 

2

400mA

300.0mA

 

 

 

Reading

29.73to 30.27

297.3to 302.7

Testing the DC ampere Function (for 61-340 and 61-342)

1.Connect the calibrator to the 10A and COM inputs on the meter.

2.Turn the rotary switch to .

a. Press the SELECT button to select the DC function

3.Apply the inputs for steps 1-2 in Table 3c.

4.For each input, compare the reading on the meter display to the reading for your meter in Table 3c

5.If the display reading falls outside of the range shown in Table 3c, the meter does not meet specification.

Table 3c DCA Test:

Step

Range

Source

1

4

3.000A

 

 

 

2

10

10.00A

 

 

 

Reading

2.950 to 3.050

9.80 to 10.20

Testing the AC microampere Function (for 61-340 and 61-342)

To verify the accuracy of AC and DC current measurement functions, do the following:

1. Connect the calibrator to the

and COM inputs on the meter.

2.Turn the rotary switch to

a.Press the SELECT button to select the AC function

b.Press the REL button to make the display is zero

3.Apply the inputs for steps 1-6 in Table 4a.

4.For each input, compare the reading on the meter display to the reading for your meter in Table 4a

5.If the display reading falls outside of the range shown in Table 4a, the meter does not meet specification.

Table 4a AC microampere Test:

Step

Range

Source

Frequency

Reading

1

400µA

40µA

60

38.9 to 41.1

 

 

 

 

 

2

400µA

40µA

400

38.9 to 41.1

 

 

 

 

 

3

400µA

300.0µA

400

295.0 to 305.0

 

 

 

 

 

4

400µA

300.0µA

400

295.0 to 305.0

 

 

 

 

 

5

4000µA

3000µA

60

2950 to 3050

 

 

 

 

 

6

4000µA

3000µA

400

2950 to 3050

 

 

 

 

 

Form Number TM61340-2

Rev 2 November 2007

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Image 18
IDEAL INDUSTRIES Testing the DC ampere Function for 61-340, Testing the AC microampere Function for 61-340