Firma:              Coulter

Modell:                         MaxM

Kommentar:     Dokumente engl.

Figure 1   The MAXM System

In the USA, PDW and Pct are NOT for Diagnostic Use. The value for PDW is used as an internal check on the reported platelet parameters Pct and MPV ^{1 ,2,3}

The purpose of the MAXM system is to separate the normal patient, with all normal system-generated parameters, from the patient who needs additional studies. These studies include further measurements of cell size and cell distribution, biochemical investigation or any other test that helps diagnose the abnormalitv. See Figure 1 for the MAXM system and Figure 2 for the MAXM with Autoloader system.

Conditions of Measurement

Hemoglobin Measurement

Wavelength: 525 nm   Bandwidth: 60 nm

Aperture Size

Aperture         Diameter            Length

RBC              50 µm                 60 µm

WBC             100 µm               75 µm

Electronic Stability

The change in calibration of the electronic measurement system is less than 1% per month when it is measured in accordance with this manual and is compared at monthly intervals.

Throughput

75 samples per hour, optimal

30 samples per hour, optimal for Retics

•       125 µL of whole blood in the open-vial mode

•       125 µL of dilution for prediluted samples

          50 µL of whole blood is mixed with 100 µL of ISOTON III diluent.

•       For Retics, 50 µL of whole blood is mixed with 4 drops of Reagent A

Tube Sizes for Closed-Vial Mode

Tubes and tube devices that fall within these ranges:

Diameter          10 - 16 mm

Length              47 - 77 mm

Capacity          2 - 7 mL

Coulter control and calibration tubes.

All tubes are listed in Appendix A.

Recommended Bar-Code Labels

Codabar

Code 39 bar code

Code 128

Interleaved 2-of-5

DMS Storage

Patient Results

1,000 sets plus all Sample Analysis screen displays

5,000 sets plus all Sample Analysis screen displays for Retic units

Controls

15 files with 100 runs per file

20 files with 100 runs per file for Retic units

Reagent Usage

Recommended Commercial Controls

COULTER 5C cell control for CBC and differential parameters

COULTER LATRON control for volume, conductivity and light scatter parameters used with LATRON primer.

COULTER Retic-C cell control for Reticulocyte (Retic) parameter.

Recommended Calibrator

COULTER S-CAL calibrator kit

Recommended Anticoagulant

K ₃ EDTA is the preferred anticoagulant; it has been used for the data collection and verification of claims.

Minimum Sample Volume Required

•            185 µL of whole blood in the closed-vial mode

The minimum sample volume per tube in the closed-vial mode is 1 mL with the proper proportion of blood to anticoagulant.

Pneumatic Supplies

Pressure

60 psi                           55.0 - 65.0

30 psi                           26.0 - 34.0

Sheath/low psi             5.8 - 6.2

Diff psi                         0.1 - 1.0

Vacuum

In inches of Hg at sea level:

Low             5.94 - 6.06

High             17.0 - 28.0

Temperature (ambient operating range for patient samples)

Ambient operating temperature: 16 to 32°C (60 to 90°F)

Humidity

0 to 95% without condensation

Recommended Reagents

ISOTON III diluent for CBC dilutions and rinsing and diff sheath flow

LYSE S III diff lytic reagent for WBC counting and Hgb determination

Erythrolyse II erythrocyte lytic reagent for diff analysis

StabiLyse leukocyte preservative for diff analysis

ReticPrep reagents for preparing reticulocyte analysis samples

COULTER CLENZ cleaning agent for both modes

INSTRUMENT SPECIFICATIONS

Dimensions

Power

Input - Dedicated Line

100/120 Vac         50/60 Hz

220/240 Vac         50/60 Hz

Consumption

1440 W This includes the system and all peripherals.