Santec PEM-320, Operation Manual

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7-2
PEM-320 Operation Manual
PER
POWER
DEG
mW/dBm
Local Key Sets RS-232C delimiter to CR
Zero Key Sets RS-232C delimiter to LF
Local + Zero* Keys Sets RS-232C delimiter to CR + LF
It is recommended to wait at least five minutes to allow the PEM-320 unit to warm up, and to
compensate for the dark current in the photodetector, before measurements are taken. The
procedure to compensate for the photodetector dark current is described in Section 7.3.
The RS-232C delimiter can be changed by pressing and holding the GPIB Local or Zero keys when
the power to the unit is turned on. Once set, the delimiter setting is retained even when power to the
unit is turned off. The action of each key when pressed at ‘Power On’ is indicated below.
*Press keys together.
The PEM-320 unit is turned off using the main ‘Power On / Off’ switch located on the front panel.
Rotate the key anti-clockwise 90 degrees to switch the unit off. The key can only be removed when
the unit is switched off and in the vertical ‘Off’ position.