Features and Functions 3
Agilent U1251A/U1252A User’s and Service Guide 61
Refresh Hold
The hold function allows operators to hold the displayed
digital value. The bar- graph is not held, fix proportional to
real measurement value. You can use the setup mode to
enable the Refresh Hold when you are working on a diffi-
cult measuring field. This function will auto trigger or
update Hold value with new measuring value, and sound a
tone to remind user.
Press button to enter Refresh Hold mode. The present
value will be held, and the sign of will be lit. It will be
ready to hold new measuring value once the variation of
measuring value exceeds the setting of variation count, and
the sign of is flashed. The hold value will be updated
until the measuring value is stable, and then it stops
flashing and lit and sound a tone to remind user.
Press again to disable this function.