Page 18

 

 

 

 

Table 12. Frequency Test

 

 

 

 

 

Input

 

Reading

 

Step

Frequency

Level

61-633

61-635

 

1

360Hz

0.5Vp-p

359.86 to 360.14

359.86 to 360.14

 

2

3.6000KHz

0.5Vp-p

3.5986 to 3.6014

3.5986 to 3.6014

 

3

36.000KHz

0.5Vp-p

35.986 to 36.014

35.986 to 36.014

 

4

360.00KHz

0.5Vp-p

359.86 to 360.14

359.86 to 360.14

 

5

3.6000MHz

1.5Vp-p

3.5986 to 3.6014

3.5986 to 3.6014

Testing the Duty Factor Function

To verify the accuracy of the Meter’s Duty Factor function, do the following:

1. Connect the Calibrator to the VΩ and COM inputs on the Meter.

Note The accuracy of the Calibrator’s Duty function must be appropriate for the specified accuracy of the Meter.

2.Set the rotary switch to Hz.

3.Press the blue button on the meter to toggle to %DF function.

4.Set the Function Generator for square wave voltage for steps 1-3 of Table 13. (Frequency is about 1KHz)

5.Compare the reading on the Meter display with the display reading shown in Table 13.

6.If the display reading falls outside of the range shown in Table 13, the Meter does not meet specification.

Table 13. Duty Factor Test

 

 

 

 

 

Input

 

Readings

 

Step

Duty (%)

Level

61-633

61-635

 

1

20.0

5Vp-p

14.0 to 26.0

14.0 to 26.0

 

2

50.0

5Vp-p

44.0 to 56.0

44.0 to 56.0

 

3

77.0

5Vp-p

71.0 to 83.0

71.0 to 83.0

Testing the Temperature Function

To verify the accuracy of the Meter’s Temperature Function do the following:

1Connect the calibrator to VΩ and via K-type wire and T-V adaptor (Ideal 61-635 TC adapter)

Note: The T-V adaptor should be allowed to stabilize to the same room temperature as the meter before beginning test.

2. Set the rotary switch to °C.

3 Set the Calibrator for inputs in Table 14.

4.Compare the reading on the Meter display with the display reading shown in Table 14.

5.If the display reading falls outside of the range shown in Table 14, the Meter does not meet specification.

Table 14 Temperature Test

 

 

 

 

 

Input

 

Readings

 

Step

Temperature

61-633

 

61-635

 

1

-50.0°C

N.A

 

-52.1 to -47.9.

 

2

-20.0°C

N.A

 

-21.1 to -18.9

 

3

0.0 °C

N.A

 

-1.1 to 1.1

 

4

20.0°C

N.A

 

18.9 to 21.1

 

5

50.0°C

N.A

 

48.9 to 51.1

 

6

100.0°C

N.A

 

98.9 to 101.1

 

7

500.0°C

N.A

 

498.9 to 501.1

 

8

1000°C

N.A

 

998.9 to 1001.1

Form Number TM61633-5

Rev 5 Dec 2006