Bio-rad TC20™ Automated Cell Counter Manual do Utilizador descarregar pdf (Página 32)

Maintenance and Troubleshooting

Troubleshooting

Error Message Possible Cause and Solution

Invalid result data Data were improperly stored and cannot be retrieved.

Invalid dilution The value entered for the desired cell concentration is higher than

the starting cell concentration. Ensure that the value of the desired

cell concentration is not higher than the starting cell concentration.

Incorrect slide, remove slide. The counting slide is used instead of the veriﬁcation

Insert veriﬁcation slide, slide during system validation. Insert side A of the veriﬁcation

side A ﬁrst, press Enter slide, and press Enter.

File write error 1. Check USB ﬂash drive. If it is close to full, then empty it.

Press Home key to continue 2. If “File write error” is displayed after step 1, then reformat

No disk found ﬂash drive in FAT32 format.

Disk is full 3. If “File write error” is displayed after step 1 and step 2,

then use different ﬂash drive.

No ﬁrmware update ﬁle present, The USB ﬂash drive does not contain the updated ﬁrmware ﬁle

press Home key to exit or the ﬁle is saved outside of root directory of UBS ﬂash drive.

Insert a USB ﬂash drive that contains the updated ﬁrmware ﬁle

in the root directory.

Please repeat the test with Failure of system test. Repeat the veriﬁcation without the veriﬁcation

a clean slide slide. If the problem persists, contact Bio-Rad Technical Support

team (see Bio-Rad Laboratories Resources for details).

Slide removed during focusing. The slide is removed during counting. If the slide is removed during

Reinsert slide to continue or focusing, counting is interrupted. Once the slide is reinserted,

press Home to exit the count starts automatically.

Connect the printer The thermal label printer is not connected to the instrument.

Connect the printer to the instrument via the USB port A or B.

No labels in the printer There are no labels in the thermal label printer. Insert labels into

the printer.

Current count value out The number of cells is above or below speciﬁcation.

of range View the cell image and dilute or concentrate your sample.

Repeat the count.

Exposure time too high Slide is too dark; remove it and use a clean counting slide.

Printer error Bad statuts code returned for the printer. Check USB cable

connecting to the printer. Turn the printer off, then turn it back on.

Filename invalid Bad sample name entered. Re-enter a valid sample name.

Store results failed Previous count data storage failed. FLASH memory currupted.

Export any good previous counts, then delete all counts

(reformat FLASH).

Hardware errors (stepper motor Restart the instrument; if the error is displayed again, contact

error, bright ﬁeld LED/CMOS not Bio-Rad technical support team (see Bio-Rad Laboratories

working, SPI communication not Resources for details).

working, vinculum communication

error, CPLD, FPGA)

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