WaterLink SpinTouch 3580 Manuel D'utilisation page 12

REAGENT DISK
The WaterLink
reagents are packaged in single test amounts in a sealed, polystyrene
disk. Stainless steel mixing beads in the reaction chambers mix the
sample water and the dried reagents. Tests for all factors in the series
are performed at one time. It is not possible to isolate the well for a
single factor and perform a test for one test factor only. Single-use
disks contain reagents for a single series. Multiple-use disks contain
reagents for repetitions of a series. Disks should not be fi lled in the
meter chamber.
DISK HANDLING
The disk should be handled only by the edges. Avoid touching the
top or bottom of the disk. The light passes through the non-frosted
areas of the disk so these areas must be kept free of smudges and
fi ngerprints. Wet disks should never be placed in the meter. Wet
disks should be dried with a lint free cloth before placing them into
the chamber.
The disk is positioned in the chamber by aligning the D-shaped hole in the center of the
disk over the D-shaped hub in the photometer chamber. The disk should be placed gently
on the hub. There is no need to fi rmly press the disk down onto the hub.
DISK STORAGE
Disks are sensitive to moisture. Avoid opening more packs than are needed. Disks
have a limited shelf life and should not be exposed to the humidity in the air more than
necessary.
Between tests store multiple-use disks fl at. Do not agitate
a partially fi lled disk. It could leak or contaminate unused
sections of the disk. Multiple-use disks that are partially used
should be discarded at the end of the day. Do not transport
the meter with a disk in the chamber.
Disks with Salt reagent should be stored and used at room
temperature (68-74 °F/20-23 °C).
DISK COVER
The black disk cover is placed over the disk in the photometer
chamber to reduce interference from stray light. The disk cover
is positioned over the disk by aligning the D-shaped hole in the
center of the disk over the D-shaped hub in the photometer
chamber. The disk cover should be placed gently on the hub.
There is no need to fi rmly press the disk cover down onto the hub.
Only the Universal Disk Cover (Code 1719) that is included with
®
the WaterLink Spin Touch
® Spin Touch ™
™
can be used with the multi-use disks.
12
uses a disk reagent system. The dried