7500 Real-Time PCR System, desktop
The discontinuation of sales for the 7500 and 7500 Fast real-time PCR for RUO starts on October 31, 2025. The 7500 Fast Dx was discontinued on December 31, 2022. Visit QuantStudio Real-Time PCR Systems for your qPCR instrument needs
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7500 Real-Time PCR System, desktop
Applied Biosystems™

7500 Real-Time PCR System, desktop

The 7500 Real-Time PCR System is a powerful platform for labs requiring superior performance and maximum dye versatility. This systemRead more
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43511051 system
Catalog number 4351105
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The 7500 Real-Time PCR System is a powerful platform for labs requiring superior performance and maximum dye versatility. This system is a sophisticated platform for users who require extended capabilities and maximum versatility. The 3rd generation platform features an innovative optical system that enhances sensitivity and lets you access a broader range of fluorophores. The variable excitation capability allows greater sensitivity for longer wavelength (red) dyes.

• Powerful, five-color platform is calibrated for the broadest range of dyes available: FAM™⁄SYBR® Green I, VIC®⁄JOE™, NED™⁄ TAMRA™⁄ Cy3™, ROX™⁄Texas Red™, and Cy5™ dyes
• Specialized optical system enables easy and accurate calibration to new dyes without requiring the addition of new filter sets
• Advanced multi-componenting algorithm minimizes spectral crosstalk – superior for multiplexing
• User-friendly software includes plate set-up wizards, multi-plate data viewing capabilities, and advanced analysis tools to make data processing simple and straightforward

NEW - 7500 Software v2.x
Now the easy-to-use StepOne software is available for both the 7500 and 7500 Fast systems with the 7500 Software v2.x upgrade. The 7500 Software v2.x incorporates your favorite StepOne Software features, such as a variety of plate setup wizards, standard curve dilution and master mix recipe calculators, QC flags, data filters, and email notification when a run is finished. The 7500 Software v2.x also includes an enhanced Gene Expression Study package and has a variety of new melting curve protocol options, including multiple peak detection, step and hold temperature control, and customizable ramp rates.

The NEW Gene Expression Study package accommodates large studies better than any other instrument software package:
• Import an unlimited number of Comparative CT (relative quantitation) files to one study
• Group samples and view data both by technical replicate group and biological replicate group
• Use any gene(s) as an endogenous control, including averaging multiple controls together
• Enter known efficiency values to be factored into the RQ results

21 CFR Part 11 Module available
The SDS v1.4 21CFRp11 Module is a powerful tool for assisting with 21CFRp11 compliance, while still offering the flexibility of user-customizable configuration settings.
• Individual user log-ins can be added for up to four user groups, each group with designated permission settings
• User-customizable permission settings include fourteen system activities, e-signature authority designation, and additional security settings to give you maximum control over your compliance efforts
• Audit trails can be enabled or disabled depending on your traceability needs
• A selection of e-signatures is available to ease e-signatures into your workflow

Supports Many Applications
Applications include gene expression analysis, pathogen quantitation, SNP genotyping, isothermal and +⁄– assays utilizing internal positive controls. To facilitate many of these applications, Applied Biosystems® provides preformulated, ready-to-use, quality-tested, TaqMan® assays for use with the 7500 system. Now you can reduce your assay optimization efforts.

Upgrade to High-Speed Thermal Cycling
An optional upgrade to the 7500 Fast System is available. This 7500 Fast System uses our master mix formulations and enables you to shorten your real-time PCR runs to as little as 30 minutes.

For Research Use Only. Not for use in diagnostics procedures.
For Research Use Only. Not for use in diagnostic procedures.
Specifications
Calibrated DyeSYBR™ Green I, ROX™, NED™, TAMRA™, JOE™, Texas Red™, Cy5™, VIC™, FAM™, Cy3™
DimensionsWidth 34 cm (13.39 in.), Depth 45 cm (17.72 in.), Height 49 cm (19.29 in.)
Dynamic Range9 Logs
Electrical Requirements950 W
External Computer80 GB HD, Dell Minitower: Celeron 346 (3.06 GHz), 1 GB NON ECC 533 MHz DDR2, 16X DVD
For Use With (Equipment)7500 System
Format96-well Plate
High-throughput CompatibilityMultiplexing
Max. Heating Rate (Thermal Block)2.5°C
OpticsCCD Camera, 5 Excitation Filters, Tungsten-halogen Lamp, 5 Emission Filters
Passive Reference DyeROX (Separate Tube), No ROX, ROX (Pre-mixed)
Peak Block Ramp Rate2.5°C⁄s
Precision99.7% Confidence (5000 & 10000 Copies)
Quantity1 system
Reaction SpeedStandard
Reaction Volume Range20–100 μL
Sample Ramp Rate± 1.1°C⁄s
Sensitivity1 Copy of RNase P gene (Human Genomic DNA)
Software CompatibilityPrimer Express, 21 CFR Part 11 Module (optional), 7500 System Software (RQ included)
Temperature Range (Metric)4 to 100°C
Thermal Accuracy0.25°C (35°C to 95°C after 3 min.)
Thermal Cycling SystemPeltier-based System
Thermal Uniformity0.50°C (after 30 s)
Throughput4 to 5-96-well Plates per 8-hr day
Voltage120 V
Weight34 kg (75 lb.)
Unit SizeEach
Contents & Storage
Desktop Computer

Frequently asked questions (FAQs)

Why are there no RQ values for all the samples in my study from the 7500 or 7500 Fast Real-Time PCR System software?

The 7500 software requires that the endogenous control be run on every plate within a study. If not, you will only see RQ values for the plate that contains the endogenous control on it. The other plates will have CT values for all the wells, but the software will not calculate RQ values.

If you designed your experiments in this type of layout, you will want to do your analysis in the free DataAssist software instead. This program does not have the endogenous control requirement for every plate. Simply export the study results file from the 7500 software as a *.txt or *.csv file, and use that to create a new study in the DataAssist software. You should now be able to see RQ values for all samples, even those without an endogenous control on the same plate.

Find additional tips, troubleshooting help, and resources within our Real-Time PCR and Digital PCR Instruments Support Center.

Why do I not see any CT or RQ values from my ddCT experiment in the software for the 7500 or 7500 Fast Real-Time PCR System?

If you have the SDS v1.4 or earlier, you will need to open the dd CT plate in a Study first in order to see the CT or RQ values. (If you have v2.0.x this error does not apply.)

1.After the initial run is complete, open, review the plots and save it. Then:
-Choose File then New
-Choose: Assay then ddCT (Relative Quantitation) Study. Set the other parameters as appropriate and click Next.
2.Click on ‘Add Plates...', then browse to where your data file is located and select the plate (or multiple plates).
Click ‘Finish', and you should see your study.

Find additional tips, troubleshooting help, and resources within our Real-Time PCR and Digital PCR Instruments Support Center.

What can I do when I get the error message "Time too short" on the 7500 or 7500 Fast Real-Time PCR System?

You may encounter this error message, which will abort the run before it even starts. If so, go into the software under Setup then Run Method and check how much time has been set for the data collection step. The instrument has a minimum collection time, which is dependent on the number of filters being used. (This is true in both the 1.x and 2.0.x versions of the 7500 software.) Increase the extension time to 30 sec and restart the run. It should now proceed as normal. If the error persists, please contact us at techsupport@thermofisher.com for further assistance.

Find additional tips, troubleshooting help, and resources within our Real-Time PCR and Digital PCR Instruments Support Center.

What can I do if I get an error message about "Block Up Switch" on the 7500 or 7500 Fast Real-Time PCR System?

This error can be caused by the wrong plastics being used in the block, such as the wrong Precision Plate Holder being used in the tray. This can give an error message such as “Block up switch not activating” and will not allow the run to start. Open the drawer, make sure the correct plate/tubes and plate/tube holder are being used and in the correct orientation. Turn off the instrument and open the front cover to make sure the heated cover door is closed. Restart the instrument and retry the run. If the error still persists, please contact us at instrumentservices@thermofisher.com for further assistance.

Find additional tips, troubleshooting help, and resources within our Real-Time PCR and Digital PCR Instruments Support Center.

On the 7500 and 7500 Fast Real-Time PCR Systems, what can I do if I get an error message about "CCD acquisition failure"?

If you see this error message, please check the following:

1. Verify that the USB connection is secure between the instrument and computer.
2. Verify that the computer user power save settings are set to Never for all users (in Windows under Control Panel, Power Options).
3. Is there a screen saver in use? If so, set the screen saver so that it will not come on during a run.
4. Is there antivirus or other network software in use? If so, disconnect from the network while running the instrument.
If the error persists, please contact us at instrumentservices@thermofisher.com for further assistance.

Find additional tips, troubleshooting help, and resources within our Real-Time PCR and Digital PCR Instruments Support Center.

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