Introduction; System Description; Measuring Principle; Functional Principle Uryxxon ® Relax - Macherey-Nagel URYXXON Relax User Manual

Manual URYXXON Relax
®

2. Introduction

The URYXXON ® Relax is a reflection photometer for the analysis of urine test
strips. The measurements are performed under standardised conditions, mea-
sured values may be displayed, printed and transfered to a computer.
The URYXXON ® Relax is designed for in-vitro diagnostic use (IVD) and should
be used by healthcare professionals, only. Discuss each positive result with a
doctor. In case of persisting symptoms repeat measurement.

2.1. System description

2.1.1. Measuring principle

The test strip moves below a fixed measuring head on a sled with an embedded
reference pad. The reflectometric analysis of the test strip and the reference
field take place during withdrawal and release of the sled.
Pic. 1: Measuring Principle
The strip is illuminated with an LED and a detector registers the intensity of light
reflected by the test strip at three different wavelengths. Using an internal cali-
bration, the results are calculated from the reflection values. Whenever samples
are strongly alkaline, a density correction is automatically conducted.
2.1.2. Functional principle URYXXON ® Relax
A measurement is started by placing a strip on the holder. If the Autostart-feature
is turned off, the measurement is started by pressing the start panel in
the display. The result is shown on the display, printed out and released via the
interfaces after the measurement has been completed. After three minutes the
instrument will go to stand-by. Touching the screen will reactivate the instrument.
All user inputs are performed via the touch-screen (Chapter 3.8 "Use of the
instrument").
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MN Manual URYXXON Relax EN V 3.00 / 03.16
®