Selectra ProS

Selectra ProS

Fully-featured, compact system with enhanced performance. Typical throughput is 140 tests per hour and up to 266 test per hour including ISE.

The latest in the Selectra Pro series, the Selectra ProS is our most compact, fully featured system with enhanced performance and best-in-class operator interface. New system features enable significant enhancements, not typically found in BenchTop chemistry analyzers. Together with a superior menu of ready-to-use, liquid-stable reagents, the Selectra ProS provides a fully integrated chemistry solution for smaller or satellite laboratory locations. With random access and typical throughput up to 140 tests per hour, the Selectra ProS system is the ideal BenchTop workhorse for primary, STAT or back-up testing needs. This new system offers minimal maintenance and effective use of consumables to truly reduce operational cost.

  • Fully-automated clinical chemistry analyzer
  • Typically 140 photometric and electrolyte tests / hour
  • Broad test menu
  • Best-in-class operator interface
  • Productivity and error reducing capabilities
  • Automated reagent management
  • Annual ProActive Maintenance Kit

Delivering trouble-free results laboratories can trust!

Processing Center

Single probe streamlines operation
- Liquid sensor detection
- Collision protection
- Precision metering

Optimized test environment ensures accurate results
Unique ‘vortex’ mixing
- Temperature controlled, 37°C

Disposable cuvette rotor with automated onboard wash
10,000 tests / cuvette rotor

Combined reagent and sample rotor with integrated cooling
Enables 28 day onboard stability for most reagents
- 30 reagent positions
- Ready-to-use, liquid-stable reagents
- Methodologies referenced to industry standards

Barcoded for easy loading and tracking
Reagent bottle barcode loads assay ID, expiration date, lot number, bottle size, test count
- Test parameters, calibration, and control values also loaded via barcode

Combined reagent and sample rotor with Positive Sample Identification (PSID)
Increases productivity and reduces errors
- Accommodates 25 samples
- Primary tubes (13 x75 mm) and sample cups

Dry ISE Technology

Patented dry Ion Selective Electrodes (ISE) technology
Reduces reagent waste and operating costs
- Long onboard stability from 3 months – 2 years
- Longer linear range

Command Center

New best-in-class operator interface with Selectra Touch Pro software
Touch screen monitor with next generation software navigation
- Intuitive color icons guide the operator through daily workflow
- Rapid access to key operations at a touch

Powerful software capabilities simplify operation
Automated sample programming with optional host query LIS interface and PSID- Real time tracking to plan and manage on-board inventory
- 40 configurable result checks enable auto validation
- Automated programming of assays, calibrators and control values using barcodes
- Maintenance tasks can be scheduled to run automatically when chemistry analyzer is not in use
- Powerful reporting and back up functionality


Typically 140 photometric and electrolyte tests/hour.

Reagent and Sample System

One rotor combining sample and reagent positions
Inner rotor ring:
30 refrigerated reagent positions for 10 mL, 25 mL and 50 mL reagent bottles
Cooled to 10°C +/- 4°C at normal laboratory conditions
All reagent positions can be assigned as R1, R2 and R3.
Outer rotor ring:
25 barcode readable positions
All positions fit 13x75 mm primary and secondary tubes and pediatric cups
- All positions can be used for calibrators, controls, normal, pediatric and STAT samples.

Pipetting System

- 1000 µl reagent syringe:
R1 volume 110-400 µl
R2 volume 0-180 µl
R3 volume 0-180 µl
Programmable in 1 µl steps
- 100 µl sample syringe:
Sample volume 1-30 µl
Programmable in 0.1 µl steps
- Programmable dilution ratios 1:5 up to 1:100 in one step increments with 3 possible diluents
- Pre-heated probe with level detection, collision protection and integrated mixer.

Cuvette Rotor

Cost effective, semi-disposable cuvette rotor with 48 cuvettes
Up to 10,000 tests per rotor
Typical reagent consumption 250 µL per test
Measurement temperature 37°C, controlled by Peltier elements.

Light Source

Quartz-iodine lamp 12V-20W.

Wavelength Range

Optical unit with 8 position filter wheel
340, 405, 505, 546, 578, 620, 660, 700 nm standard wavelengths
Other wavelengths available on request.

Photometric Range

-0.1 to 3.0 Absorbance
Resolution 0.001 Abs.

Analytical Modes (Single, Dual and Triple reagent system)

Kinetic measurement with linearity check
Mono- and bichromatic end point measurement with or without bichromatic reagent blank and/or sample blank correction
Two point measurement; with or without slope blank
Graphic plot of all measuring points
Predilution and automatic reflex dilution as needed
Non-linear calibration curves
Prozone check for immunology tests
Cut-off declaration
Calculated tests.

Quality Control

Up to 15 controls can be defined, 3 per test
Westgard or Basic QC rules
Levey-Jennings plots
Quality control statistics.

Water Consumption

~950 mL per hour when fully operating.

Standards and Regulations

Pending FDA clearance


90 x 75 x 60 cm (W x H x D)
36 x 30 x 24 in(W x H x D)
Weight: 75 kg (165 lbs).


State of the art Host-Query interface available
Host: RS 232 or Ethernet (TCP/IP)* through LIS-2A protocol.

*Under development

Environmental Conditions

Temperature: 15 – 32 °C (59 – 90 °F)
Humidity: 15 – 85% RH
Altitude: up to 2000 m
Plumbing: No dedicated water or drain required
- Voltage: 100 – 240 Vac
- Frequency: 50 – 60 Hz
- Power (max): 350 VA .

Integrated PC

Touch screen navigation
Operating system: Windows™ Embedded.


Barcode Reader

Hand held CCD barcode reader used for reagent identification and automated programing of assays, controls, and calibrators.

Dry ISE Module

Patented Solid State Electrode Technology
Indirect measurement
Dilution 1:14
Measures Sodium, Potassium, Chloride and CO2.

Positive Sample Identification

Positive Sample Identification (PSID) reads all popular barcodes.


Printer supported by MS Windows™.

ProActive Maintenance Kit

Complete parts kit for annual preventive maintenance.


Ordering Information

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