Hach SC200 Basis-Benutzerhandbuch Seite 27

Problem
Incorrect current output
No relay activation
Secure Digital Memory (SD) card not
recognized by the controller
Information not saving, or not saving properly
to the SD card.
SD card full
Controller cannot find software updates on the
SD card.
Resolution
Verify current output configuration.
Test current output signal using the Test/Maintenance submenu.
Input a current value and verify the output signal at the controller
connections. If the output is incorrect, perform an output
calibration.
Make sure relay connections are secure.
If using an external power source, make sure the relay wiring is
correct.
Make sure the relay configuration is correct.
Test the relay activation through the Test/Maintenance menu.
The relay should energize and de-energize as selected.
Make sure the controller is not in calibration mode and that the
relay is not being held.
Reset the Overfeed Timer to make sure the timer has not
expired.
Make sure the SD card is properly oriented. The copper traces
should face toward the controller display.
Make sure the SD card is fully seated in the slot and the spring
lock is engaged.
Make sure the SD card is properly formatted with a Fat
32 format. The MMC format is not supported. Follow the
instructions of the card manufacturer to format the SD card on a
PC.
Make sure the card is not larger than 32 GB.
Make sure an SD card is being used. Other types of cards (such
as xSD, micro SD, mini SD) will not work properly.
Make sure the SD card is properly formatted with the FAT
32 format. The MMC format is not supported. Follow the
instructions of the card manufacturer to format the SD card on a
PC.
If the SD card has previously been in use, format the card with
the Fat 32 format, install the card in the controller, and try
downloading files.
Try a different SD card.
Read the SD card with a PC or other card reader device. Save
important files and then delete some or all of the files on the SD
card.
Make sure an appropriate folder is created by installing the SD
card in the controller. An update folder will automatically be
created.
Install the SD card on a PC and make sure the software files are
located in the appropriate update folder.
If the same SD card is used with multiple controllers, each
controller will have a separate folder on the system. Make sure
the software updates are in the folder dedicated to the controller
in use.
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