Bio-Rad GS-800™ Calibrated Densitometer - Manual (Page 15)

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OD Values and Serial number of
the tranparency calibration tablet
are on this decal pasted to the
right side of the GS-800.
4.2 Start-Up
Turn on the Densitometer. The on/off control is a push-button switch located on the left
front of the unit. The Power indicator lights up. The Densitometer performs a self-test
that lasts approximately 80 seconds during which the Ready indicator flashes briefly. The
scanning lamp turns on and both indicator lights will stay on once the Densitometer is
powered up.
For optimum performance, allow the Densitometer to warm up for five minutes after
power-up.
The Model GS-800 Calibrated Imaging Densitometer is now ready for use.
4.3 Reflective Scanning
To scan a reflective sample:
1. Raise the Transparency Module.
2. Place the sample to be scanned facedown on the image window.
3. Guide the top corner of the sample to the lower left (0,0) corner of the image window.
4. Lower the Transparency Module
Warning: Always lower the transparency module slowly and release it only when it lies
flat on the body of the Densitometer.
5. For more information about scanning operations and options, refer to the Quantity One
software manual.