HP 8153A - Page 237

Local Control Summary
selects the channel. Under remote operation, this key acts as
changes the operating mode,
select the character to edit,
edit the selected character.
Measure Mode
The mode-indicator shows ME AS. In measure mode, the function of key is shown
by the black legend on the key.
(Param 1
[Pisp—>Ref)
(cIBm/Wl
[Zero']
(Auto)
II
[Down]
selects measurement-parameters.
A This is the wavelength value.
CAL This is a calibration offset.
T This is the length of time over which a signal is averaged.
REF This parameter sets the reference-level.
ATT This parameter sets the attenuation of an output.
AUX This parameter sets the frequency of the modulation of the
output.
takes the input power-level and stores it as the reference,
switches the display to show results in dB; with respect to the
reference stored for the channel; or, for an instrument with two
sensors, with respect to the power-level of the other channel,
changes the display to show results in dBm or in Watts,
removes any electrical offset in the sensor circuitry,
selects the number of digits shown after the decimal point,
enables or disables automatic ranging for the result,
selects the next higher range and disables automatic ranging,
selects the next lower range and disables automatic ranging.
Local Control Summary F-1