HP 8153A - Page 50

The Param Key
Use (Param 1 to Select a measurement-parameters for editing. The parameter-
indicator shows the selected parameter, the character field shows the value of
the parameter. You can select the next parameter by pressing [^aml again.
When the hardware does not use a particular parameter, you cannot select it.
When you have selected a parameter, you can edit it using the Modify keys
(described later in this chapter). Some parameters are set by the instrument,
these cannot be edited.
The Applications in Menu mode also use the parameters set in Measure mode.
Entry Status
When you select a parameter, the editable part blinks. The editable part can be
one digit or character, or the whole parameter. You can only edit a parameter, or
a part of a parameter, while it is blinking.
If you do not press any more keys within 10 seconds, the blinking stops and you
are prevented from editing the value. You can enable editing again if you press
any of the Modify keys.
Note
The instrument holds the parameter information in memory
until you edit it. Switching the instrument off does not affect
the parameters.
Default Values
If you hold down (Param I for 2 seconds or longer, the parameter is set to its
default value.
Parameter List
The parameters and their specifications are as follows:
A
This is the wavelength value. Sometimes, you can set the wavelength to any
value within limits set by the module (for example, for a power sensor). For
other modules, you can choose one wavelength from two possibilities (for
2 ) «id Control • Measure Mode