OPTI Medical Systems, Inc.

OPTI LION™ Electrolyte Analyzer

Accurate electrolyte results

The OPTI LION™ Electrolyte Analyzer:

  • Provides fast accurate results for electrolytes, ionized calcium and pH.
  • Runs samples of whole blood, plasma and serum.
  • Uses innovative optical technology.
  • Requires minimal maintenance—no fluids or electrodes.
OPTI LION Electrolyte Analyzer

Lab-quality results, automated and economical


Lab-quality results

The OPTI LION™ Electrolyte Analyzer provides lab-quality results with zero standby cost. The single-use consumable is only used during a measurement and safely locks waste inside.


Low maintenance

The innovative optical fluorescence technology of the OPTI LION analyzer eliminates electrodes, and its unique sensor construction prevents lipid/protein build-up. In addition, the single-use cassette does not require a fluidics system, eliminating tubing maintenance.


Reusable controls

The OPTI LION analyzer has reusable quality-control cassettes to eliminate the cost associated with performing daily liquid quality control.


Measured pH and ionized calcium along with sodium, potassium and chloride

The OPTI LION analyzer measures pH and ionized calcium in the same single-use cartridge that also measures sodium, potassium and chloride simultaneously, providing a more complete picture of the patient’s status.

Technology—Principles of operation


The OPTI LION™ Electrolyte Analyzer is a microprocessor-based instrument that measures optical fluorescence from discreet sensors called optical electrodes (optodes). A disposable, single-use cassette contains all of the elements needed for calibration, sample measurement and waste containment.


Calibration information is loaded into the analyzer automatically when a cassette is read using the bar-code reader. The analyzer performs a calibration verification on all sensors before aspirating the sample into the disposable cassette. The sample is moved across the optode sensors and the fluorescence emission is measured, giving you a reliable reading of the tests you have selected.


OPTI LION single-use cassettes include these features:

  • Calibration of cassette before sampling—avoids sample loss
  • Test parameters—Na+, K+, Cl, Ca++ and pH
  • Safe disposal—waste is stored in cassette
  • Maintenance-free operation—no electrodes
  • Zero standby cost—no reagents required



OPTI LION™ analyzer specifications



Sample Volume

125 µL

Calibration Time

<90 seconds

Measurement Time

<120 seconds

Typical Cycle Time

<210 seconds

Operating Temperature

10–32°C (50–90°F)

Sample Type

Whole blood, serum or plasma

Measurement Principle


Sample Application

Syringe or sample collection tubes

Data Storage

  • 200 patient records
  • 30 QC/SRC samples per level
  • 300 user IDs and passwords





Password-protected analyzer setup and delete functions

QC Lockout

User-definable QC lockout functions




Height x Width x Depth

124 x 362 x 230 mm (4.7 x 14.2 x 9.1 in)


3.6 kg (8 lb)





120 or 240 AC, 50–60 Hz

Power Consumption (max.)

110 VA


Ethernet and serial (ASTM or ASCII)


CE, UL, IVDD and FDA 510k cleared

A variety of cassettes that are ready for testing exactly what you need.


The OPTI LION™ Electrolyte Analyzer uses ready-to-use single-use cassettes that let you test for a range of parameters:




pH, Na+, K+, Cl, Ca++


pH, Ca++


Na+, K+, Cl



 Sample Type
Available Units


ParameterWhole BloodPlasmaSerumDefaultOther(Default Units)(Low/High)
 pHxxx   pH units 6.8–8.00.01/0.001
 Na+xxx   mmol/L   mg/dL100–1901/0.1
 K+xxx   mmol/L   mg/dL1.0–9.50.1/0.01
 Ca++xxx   mmol/L   mg/dL0.3–2.00.01
 Clxxx   mmol/L   mg/dL65–1451/.01

Simple and easy to use


The OPTI LION™ Electrolyte Analyzer is easy to run:

  • The user-friendly touch screen, with simple menu navigation, can be used with minimal training.
  • Automated sample aspiration reduces preanalytical errors and training.
  • Measuring pH allows for a measured and normalized ionized calcium.


Running the OPTI LION analyzer:

  1. Scan the cassette bar code.

  1. Open the cassette packaging and place the cassette into the sample measurement chamber and close the cover.

  1. Attach the aspirating tube.

  1. Aspirate the sample. When sample aspiration and measurement is complete, the results will automatically appear on the screen.

Questions and answers about the OPTI LION™ Electrolyte Analyzer


Does the OPTI LION™ Electrolyte Analyzer require daily or weekly maintenance?

The OPTI LION analyzer is virtually maintenance-free. It requires no daily or weekly maintenance.

Is the OPTI LION analyzer capable of QC lockout?

Yes, the OPTI LION analyzer ensures regulatory compliance by providing a feature for QC lockout. The OPTI LION analyzer also has the ability to store up to 200 programmable user IDs and passwords at the instrument level in order to provide a complete audit trail.

How is QC performed on the OPTI LION analyzer?

The OPTI LION analyzer allows for easy daily QC using a reusable electronic QC cassette.

Does the OPTI LION analyzer have the capability to be interfaced?

Yes, the OPTI LION analyzer has the ability to be interfaced to any laboratory information system (LIS) or hospital information system (HIS) using a built-in serial/RS-232 port.