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COMMAND REFERENCE

Limitations:

The oscilloscope is only able to calculate rise and fall time characteristics, if the <low_reference> and <high_reference> parameters are limited to 1/8 division from their maximum and minimum. The limit of 0.125 divisions (noise level) depends on the vertical sensitivity of the top-to-top value (PTPeak) of the actual signal and is calculated as follows:

 

 

<low>

<high>

- If PTPeak < 1 div., limit = 0.125 x 100% =

12.5%

87.5%

- If PTPeak < 2 div., limit = (0,125 /

2) x 100% =

6.25%

93.75%

- If PTPeak < 3 div., limit = (0,125 /

3) x 100% =

4.16%

95.84%

- If PTPeak < 4 div., limit = (0,125 /

4) x 100% =

3.125%

96.87%

- If PTPeak < 5 div., limit = (0,125 /

5) x 100% =

2.5%

97.5%

- If PTPeak < 6 div., limit = (0,125 /

6) x 100% =

2.08%

97.92%

- If PTPeak < 7 div., limit = (0,125 /

7) x 100% =

1.78%

98.22%

- If PTPeak < 8 div., limit = (0,125 /

8) x 100% =

1.56%

98.44%

- If PTPeak < 9 div., limit = (0,125 /

9) x 100% =

1.38%

98.62%

- If PTPeak < 10 div., limit = (0,125 / 10) x 100% =

1.25%

98.75%

For frequency, delay, period, and

dutycycle calculations these limits are also

applicable for the <middle_reference> parameter.

 

 

Notes:

(1)For reasons of compatibility with similar programs for other instruments, the syntax for the MEASure?, FETCh?, CONFigure, and READ? command allows the default node [:SCALar]. When used, this node must be placed after the leading node (MEASure, FETCh, CONFigure, or READ) but before the default [:VOLTage] node.

(2)Parenthesis around the <voltage_parameters> may be left out when no <measure_parameter> exists.

(3)A MEASure? query is always executed over the whole acquisition length of 512 samples (not cursor limited).

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Fluke PM-3370B, PM-3380B, PM-3390B, PM-3394B, PM-3384B user manual Limitations