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Disconnect all SCSI devices and connect them one by one, beginning with the

Densitometer, to identify the device that causes the problem.

The Quantity One software returns a "Calibration error " or similar message when

attempting to calibrate.

1.

 

Check if the OD values for the Transparency target in the EDIT CALIBRATION

window are entered properly.

2.

 

Make sure the calibration windows are clean and free of dust, dirt, fluid, and other

contaminants that can obstruct the path of light.

3.

 

Check for correct offset value.  For the GS-800 Calibrated Imaging Densitometer the

correct offset value is 00  for transmissive scanning and 0.05 for reflectance scanning. 

4.

 

Make sure that the transparency scan image shows up correctly at the bottom of the

Quantity One acquisition window and that during the calibration the software

identifies each step wedge with a number inside a yellow rectangle in the sequence

shown in the photo below:

1       2      3      4      5     6 ……………and so on.

The Quantity One software returns a "Densitometer not ready" or similar message.

1.

 

Verify the power connection to the Densitometer.

2.

 

Check that the power switch is turned on.

3.

 

Check the Installation procedure (Section 3), to see if you followed the instructions.

Pay special attention to the setting of the SCSI ID number.

4.

 

Verify the integrity of the terminators and the cables.  If there is a problem with a

cable or with the SCSI board of the Densitometer, contact Bio-Rad Technical Service.

5.

 

Disconnect all SCSI devices and connect them one by one, beginning with the

Densitometer, to identify the device that causes the problem.

6.

 

Verify that the Densitometer imaging device is selected in the FILE menu  of the

Quantity One software.

ASPI error message appears.

Call Bio-Rad Technical Service for assistance.

Summary of Contents for gs-800

Page 1: ...For Catalog Numbers 170 7980 GS 800 Densitometer PC 170 7981 GS 800 Densitometer Mac For Technical Service Call Your Local Bio Rad Office or In the U S Call 1 800 4BIORAD 1 800 424 6723 WWW BIO RAD C...

Page 2: ......

Page 3: ...ackaging Bio Rad shall not be liable for any incidental special or consequential loss damage or expense directly or indirectly arising from the use of the Model GS 800 Calibrated Imaging Densitometer...

Page 4: ...3...

Page 5: ...5 Taking a Closer Look 10 Section 3 Installation 12 3 1 About SCSI Devices 12 3 2 Changing the SCSI ID Number 12 3 3 Checking the Terminators 13 3 4 Installation for the Macintosh or PC Computer 14 3...

Page 6: ...5...

Page 7: ...transmission tablet to ensure accurate OD readings Reflective gray scale tablet to ensure reproducible reflectance values Supported by Quantity One software which provides versatile image display opt...

Page 8: ...allow a minimum of 15 cm free space around each side of the Densitometer Do not leave photographs gels or film on the glass plate for excessive periods of time The heat from the light source in the De...

Page 9: ...can occur if it is dropped or otherwise mistreated 2 2 Unpacking the Contents Unpacking the Model GS 800 Calibrated Imaging Densitometer shipping container Warning The Model GS 800 Calibrated Imaging...

Page 10: ...s transparency module located in the lid is held in place during shipment by a carriage lock Figure 2 1 on the underside of the transparency module The carriage lock must be unlocked before the instru...

Page 11: ...Turn the Densitometer off again The transparency assembly should be in the Home position To lock the optical assembly insert a coin in the Carriage Lock Turn it until the marked points align with the...

Page 12: ...11 50 pin SCSI connector 25 pin SCSI connector SCSI Termination Switch SCSI ID Switch Power Cord Connector Fig 2 3 The back of the Model GS 800 Calibrated Imaging Densitometer...

Page 13: ...minators may damage your SCSI devices Some SCSI devices have built in terminators and must therefore be placed at the beginning or end of your SCSI chain Note The Model GS 800 Calibrated Imaging Densi...

Page 14: ...vice connected to your computer In this situation the card will have a built in terminator The card forms one end of the SCSI chain the Densitometer forms the other end Turn on the active terminator a...

Page 15: ...ur computer you need to install the interface card into your computer Contact your local Bio Rad Sales Representative or Technical Service for the recommended Adaptec SCSI adapter To install the card...

Page 16: ...nstallation through the following steps 1 Check and reset if necessary the Densitometer s SCSI ID 2 Run the automatic Densitometer self test see below Test the Densitometer The Densitometer automatica...

Page 17: ...llows you to place samples up to 3 0 mm thick on the image window for scanning Warning Always lower the transparency module slowly and release it only when it lies flat on the body of the Densitometer...

Page 18: ...It has marks in inches and centimeters to help you correctly position the sample on the image window for scanning Indicator Lights The indicator lights Figure 2 2 are located on the front left side of...

Page 19: ...ple to the lower left 0 29 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 Densi...

Page 20: ...e Transparency step tablet are included on a separate sheet with this Manual and are also on the Decal pasted on the right side of the instrument If for any reason these values are lost contact Bio Ra...

Page 21: ...clean the glass 1 Turn off the power switch 2 Unplug the power cord from the wall outlet 3 Use a slightly damp cloth with a small amount of mild detergent or alcohol to wipe the glass 4 Dry the glass...

Page 22: ...Densitometer fuse needs to be replaced Contact Bio Rad Technical Service The scanned image is marred by specks or horizontal lines Hardware failure Contact Bio Rad Technical Service The scanned image...

Page 23: ...that during the calibration the software identifies each step wedge with a number inside a yellow rectangle in the sequence shown in the photo below 1 2 3 4 5 6 and so on The Quantity One software re...

Page 24: ...port on all features of the GS 800 Calibrated Imaging Densitometer system including all hardware software or spare parts issues If you have any problems or any questions on the use of the features con...

Page 25: ...tor Transmission Speed 1 Mbyte second Lamp 8W daylight fluorescent light Warm up time 35 seconds 5 minute for stable operation Voltage Line voltage 100 to 240 Volts Frequency 50 to 60 Hz Power 30 Watt...

Page 26: ......

Page 27: ...95 69 65 Germany 089 318 84 177 Hong Kong 852 2789 3300 India 91 124 6398112 113 114 6450092 93 Israel 03 951 4127 Italy 39 02 216091 Japan 03 5811 6270 Korea 82 2 3473 4460 Latin America 305 894 5950...

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