Agilent Technologies 8935 series e6380a manual Using Measurement Limit Indicators

Operating Overview

Using Measurement Limit Indicators

Using Measurement Limit Indicators

The Lo Limit and Hi Limit functions are used to define a measurement “window.” You can set a high limit, a low limit, or both. When limits are assigned, Lo, Hi or both are indicated on the screen.

A measurement that goes above or below the defined limits causes three things to happen:

1.A message appears at the top of the screen indicating a limit was exceeded.

2.The Lo or Hi indicator flashes.

3.The beeper beeps (if it is has been enabled in the INSTRUMENT CONFIGURE screen).

Limits are helpful when you can’t watch the Test Set’s display while you are making an adjustment on the equipment you are testing or repairing. They are also a convenient way of alerting you to long-term measurement drift.

To set high and low limits

Step 1. Position the cursor in front of the unit-of-measure for the measurement for which you are setting limits.

Step 2. Press and release the Shift key, then the down-arrow key to access the Lo Limit function, and enter the measurement’s low-limit value and its

unit-of-measure.1

Step 3. Press and release the Shift key, then the up-arrow key to access the Hi Limit function, and enter the measurement’s high-limit value and its

unit-of-measure.1

To reset or remove limits

To reset a limit that has been exceeded

Step 4. Position the cursor in front of the measurement’s unit-of-measure.

Step 5. Press and release the Shift key, then the down-arrow (or up-arrow key) to access the Lo Limit (or Hi Limit) function.

Step 6. Press Enter or Shift then Hold to access the Meas Reset function.

1.The fundamental unit for the limits does not have to be the same as the measurement’s units. For instance; when measuring AC Level in Volts, you can set high and low limits in units of dBm.

Chapter 3 65