Maintenance and Service
139
P/N CLS151164 Rev. B
LabChip GX Touch/GXII Touch User Manual
PerkinElmer, Inc.
Calibrating the Optics
The LabChip GX Touch software provides an Optical Calibration
function using Test Chip C to calculate a correction factor for each
individual LabChip GX Touch instrument. The correction factor is
applied to all samples run on the instrument to provide a common
absolute fluorescence across different instruments.
Run the Optics Calibration procedure (using Test Chip C) once a
month, or more often if the company SOP specifies more frequent
calibration or diagnostics. Optics Calibration should also be run if
the Optics Calibration Test in the Diagnostics fails.
To calibrate the optics:
1
Touch the
Tools
button on the
2
Touch the
.
3
Touch the
Open Chip Door
button and lift the front door.
4
Insert Test Chip C in the instrument and close the chip door.
5
Touch the
Warm and Scan
button. The laser and Test Chip
warming step starts. Warm-up takes 10 minutes.
6
Wait while the scan is performed. The scan takes 5 minutes.
When the scan is complete, the correction factor is calculated
and displays in the
New Correction Factor
text box.
7
To apply the new calibration factor to the instrument, touch the
Apply
button. All future runs will be scaled by the new
calibration factor.
Walk-Away Operation
After the scan has started, you can leave the instrument. At the end
of the scan, the chip warming and laser are turned off after one
minute, but the correction factor displayed in the window can be
applied when the user returns to the instrument.
Correction Factor Beyond Calibration Limits Error
If the New Correction Factor is not within the factory-set limits, the
text box displays an error message on a red background. Please
contact PerkinElmer technical support (see
) to determine
the problem.
Failed to Find Focus Point
If the focus point cannot be found during a scan, retry the scan. If
the error still displays and another Test Chip C is available, try the
scan with a different Test Chip C. The laser and chip warming
remain on for one minute to allow you to retry the scan.
