HP 8924E User Manual page 49

To Set Measurement Limits
The LO LIMIT and HI LIMIT functions are used to define a measurement
"window" to alert you to measurements that are outside these limits. When limits
are assigned, and/or
Lo
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 by the measurement flashes.
3. The Beeper beeps if it is has not been turned off in the CONFIGURATION screen.
Limits are helpful when you can't watch the Test Set 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 without having
to observe the screen.
1. Position the cursor in front of the unit-of-measure for the measurement you are setting
limits for.
2. Press and release the SHIFT key, then the down-arrow key to select the LO LIMIT
function.
3. Enter the measurement's low limit value and unit-of-measure.
4. Press and release the SHIFT key, then the up-arrow key to select the LO LIMIT func-
tion.
5. Enter the measurement's high limit value and unit-of-measure.
To reset a limit that has been exceeded:
1. Position the cursor in front of the unit-of-measure for the measurement you assigned
the limit to.
2. Press and release the SHIFT key, then the down-arrow (LO LIMIT) or up-arrow (HI
LIMIT key, or press the MEAS RESET key.
To remove a limit you have set:
1. Position the cursor in front of the unit-of-measure for the measurement you assigned
the limit to.
2. Press and release the SHIFT key, then the down-arrow (LO LIMIT) or up-arrow (HI
LIMIT key, then press the ON/OFF key.
1. The fundamental unit for the LIMITs does not have to be the same as the measure-
ment's units. For instance, when measuring AC Level in Volts, you can set HI and LO
LIMITs in units of dBm if desired.
To Change the Measurement Display
appear by the measurement.
Hi
Chapter 3, Operating Overview
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