Polarization Extinction Ratio Meter PEM-340
9-5
Status Command
The SU command is provided to enable the current status of the rotating polarizer and the
measurement speed setting to be probed. The command returns a six digit number. The
interpretation of the six digit number is detailed below:
1st digit 0 – Polarizer is rotating.
1 – Polarizer has stopped rotating.
2nd digit 0 – Measurement speed is set to 2.5Hz.
1 – Measurement speed is set to 5Hz.
2 – Measurement speed is set to 10Hz.
3rd digit Range
0 Hold
1 Auto
4th digit Input power low level
0 Normal
1 Unmeasurable (too low level)
5th digit Input power high level
0 Normal
2 Unmeasurable (too high level)
6th digit 0 Normal
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