Extech Instruments 420 Spécifications télécharger pdf (Page 51)

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51

V5.1‐March2010

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Refer to Figure 30:

Figure 30: Save and Recall Waveforms

FUNCTIONSETTINGMENU(REFERTOTABLEBELOW)

Press the MENU button and use the up/down arrow keys to scroll to FUNCTION

Function menu

Description

Recall Factory Set the meter’s settings to their factory default

conditions

Auto Calibration Perform an Auto-calibration procedure

Language Select the desired display language (English, Chinese,

Deutsch, or Greek)

Auto-calibration

The Auto-calibration function automatically configures internal parameters to maintain the

sensitivity and accuracy of the meter. Use the Auto-calibration in the following cases:

• When the temperature changes by more than 5 degrees Celsius during operation

• When operating the oscilloscope in a new bench top or field environment

1. Press MENU and select the FUNCTION menu using the MENU ▲ or MENU ▼ key

2. Press F2 (Auto calibration). A message appears asking the user to remove all cables

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Extech Instruments 420 Spécifications Page 51