DiaSys respons 920 or HumaStar 200: Which Clinical Chemistry Analyzer To Choose

Explore the features and specifications of the HumaStar 200 and respons 920 clinical chemistry analyzers to determine which one best fits your laboratory's needs.

Company HUMAN DiaSys Diagnostic
Model HumaStar 200 respons 920
Throughput max. tests/h 200 200 tests / hour with a cycle time of 18 seconds for mono and two component tests,
360 tests / hour with ISE
Reagent positions 30 -
Reagent cooling independent from main power switch -
Sample positions 60 39
Sample barcode reader Internal Automatic bar code scan
Cuvettes 80 reusable 45 reusable
Water consumption (l/h) < 2 l/h Up to 7.5 l/h

*All information is correct as of December 2023



Use the following form for any request whether it is product related or concerning potential distribution partnership.
Fields marked with a * are mandatory. Please take care in entering all data correctly. 

Selecting a clinical chemistry analyzer is a crucial decision for laboratories, impacting workflow efficiency, turnaround times, and overall testing accuracy. Both the HumaStar 200 by HUMAN and the respons® 920 by DiaSys Diagnostic Systems are capable instruments, but understanding their strengths and weaknesses is essential for making an informed choice. This comprehensive comparison equips you with the knowledge to choose the ideal analyzer for your specific laboratory needs.


Throughput refers to the number of tests a clinical chemistry analyzer can perform in an hour. A higher throughput translates to faster analysis times, quicker turnaround times for test results, and improved overall laboratory productivity.

  • HumaStar 200: Offers a maximum throughput of 200 tests per hour. This is suitable for mid-sized laboratories managing moderate to high testing volumes.

  • respons 920: Provides two throughput options: 200 tests per hour with a cycle time of 18 seconds for basic tests. 360 tests per hour when electrolyte testing (ISE) is included. This flexibility in throughput can be advantageous for laboratories with fluctuating testing demands.

Reagent Positions

The number of reagent positions on a clinical chemistry analyzer influences its versatility and testing capability. More reagent positions allow laboratories to conduct a wider range of tests without frequent reagent changes, enhancing workflow efficiency and minimizing downtime.

  • HumaStar 200: Provides 30 reagent positions, allowing for a diverse range of tests.

  • respons 920: Information on reagent positions is not available. It is crucial to inquire with the supplier about the number of reagent positions and its impact on your desired test menu.

Reagent Cooling

Clinical chemistry reagents require specific temperature ranges for optimal performance and accurate test results. A built-in reagent cooling system safeguards reagent integrity and guarantees consistent test outcomes.

  • HumaStar 200: Includes an independent reagent cooling system, ensuring temperatures remain stable even if the main power switch fluctuates.

  • respons 920: Information on reagent cooling is not available. Inquire with the supplier about the presence and specifications of a reagent cooling system.

Sample Positions

The number of sample positions on a clinical chemistry analyzer impacts its capacity to handle fluctuating sample volumes. A sufficient number of positions is essential for efficient sample processing and reducing backlogs.

  • HumaStar 200: Provides 60 sample positions, accommodating laboratories with moderate to high sample volumes or fluctuating sample loads.

  • respons 920: Offers 39 sample positions, which may be limiting for laboratories processing high sample volumes.

Sample Barcode Reader

An integrated sample barcode reader safeguards against sample mix-ups and guarantees accurate test results linked to the corresponding patients. This feature is particularly advantageous for high-throughput laboratories processing a large number of samples and minimizing the risk of errors.

  • HumaStar 200: Includes an internal sample barcode reader for enhanced accuracy in sample identification and reduced risk of errors.

  • respons 920: Offers automatic barcode scan functionality.


Cuvettes are disposable or reusable containers that house the reaction mixture during clinical chemistry testing. The type and quantity of cuvettes influence consumable costs and waste generation.

  • HumaStar 200: Utilizes 80 reusable cuvettes, minimizing consumable costs and environmental impact.

  • respons 920: Employs 45 reusable cuvettes.

Water Consumption

Water consumption is a growing concern in laboratory management. Clinical chemistry analyzers with lower water consumption rates contribute to cost savings and environmental sustainability efforts.

  • HumaStar 200: Demonstrates a low water consumption rate of less than 2 liters per hour.

  • respons 920: Consumes up to 7.5 liters of water per hour, significantly higher than the HumaStar 200. This can impact operational costs and environmental footprint.


Both the HumaStar 200 and respons® 920 offer competitive features for clinical chemistry analysis. The ideal choice for your laboratory depends on your specific needs and priorities.