Agilent Technologies AGILENT U2761A Servisní příručka stáhnout pdf (Strana 50)

3 Calibration

36 U2761A Service Guide

7 Use the DMM to perform the AC voltage measurement at

the output terminal for each setup shown in the table

below.

8 Enter the measured value to the U2761A as described in

“Calibration Procedure” on page 30.

1 Calibration constant is stored after completing this setup.

9 Proceed to AC amplitude flatness (–20 dB range)

adjustment or exit the calibration mode when necessary.

Table 3-16 Configuration for 50% pulse AC amplitude adjustment

U2761A DMM

Setup Function Period Amplitude Lower margin Measurement Upper margin

29 50% Pulse 1.00000 ms 44 mVrms 41.8 mVrms Vrms 46.2 mVrms

30 50% Pulse 1.00000 ms 90 mVrms 85.5 mVrms Vrms 94.5 mVrms

31 50% Pulse 1.00000 ms 110 mVrms 102.3 mVrms Vrms 117.7 mVrms

32 50% Pulse 1.00000 ms 900 mVrms 837 mVrms Vrms 963 mVrms

33 50% Pulse 1.00000 ms 1.100 Vrms 1.023 Vrms Vrms 1.177 Vrms

50% Pulse 1.00000 ms 4.500 Vrms 4.185 Vrms Vrms 4.815 Vrms

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 66 67

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Agilent Technologies AGILENT U2761A Servisní příručka Strana 50