Semight-SUPPORT-FAQ-Semight Instruments

Q&A

Common Problem

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？Q

Why do some channels of single-mode VOA display locked mode and some channels display open-loop attenuation mode? How to switch modes?

A

There are three modes of single-mode VOA: power locking mode, open-loop attenuation mode and closed-loop attenuation mode
Long press the mode switch button on the front panel to switch modes
PS: refer to the operation manual for the meaning and operation of other front panel buttons
？Q

How to determine whether the single-mode VOA optical attenuator has power monitoring?

A

You can intuitively see whether there is input power & output power on the LCD UI panel, as follows:
？Q

Does the sampling oscilloscope dca4201 second generation host computer have real-time mode display?

A

Yes, select setup instument mode setup - in the GUI and check the tuning mode
？Q

Can the sampling oscilloscope display the equipment temperature on the upper computer of dca4201 second generation computer?

A

Yes, select setup display setup check temperature display in the GUI
？Q

How does the second generation of sampling oscilloscope dca4201 record the log log of the instructions sent by the automation software to the upper computer?

A

Select tools SCPI programming tools in the GUI and check it; The log will be saved to the log folder of the upper computer
？Q

How to set the threshold mode of the sampling oscilloscope dca4201 second generation computer when testing mask magin?

A

Mask test setting - select Maunal mode - set the corresponding threshold
？Q

What is the recommended light entry range of the second generation of sampling oscilloscope dca4201?

A

-About 3dB to - 6dbm
？Q

Is there light on the oscilloscope screen of the second generation of sampling oscilloscope dca4201?

A

First, confirm whether the device under test emits light, which can be checked with a power meter; Confirm that there is light on the power meter and no light on the oscilloscope. After the equipment is restarted and connected, conduct dark current calibration and check again; If none of the above works, confirm whether there is light of more than 0dB entering the optical port and damaging the internal devices
？Q

How does the sampling oscilloscope dca4201 display the current temperature of the device and the temperature during calibration on the GUI?

A

Measure configure measurement

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