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VALENT Description of Parts
Parts
Description
Independent slide trays
The VALENT includes four removable stainless steel slide trays, each with a 12-slide
capacity. The slide trays secure the slides firmly in a horizontal position at all times
during the staining run. The slide trays can be removed from the instrument for loading
slides, and then reinserted, without opening the system lid.
There is an LED sensor which, when RED, indicates the slide tray is locked in place
and may not be removed. When the LED turns green, the slide tray may be removed or
reinserted. The LED is off when a slide tray is removed from the instrument.
System lid
The VALENT system lid operates with a gas strut motion control system which allows
access to the work surface. The system lid automatically locks at the start of a run. The
lid must be closed during the operation of the instrument. The system lid status can be
viewed from the VALENT Software Home Screen or by the LED light (red if locked, green
if unlocked).
Syringe pump
The syringe pump is a positive displacement pump used for aspiration and dispensing of
reagents on slides, for mixing reagent components and probe washing.
Fans
The internal fans are designed to reduce humidity and temperature during heated
antigen retrieval. There are a total of 8 fans in the upper chassis, 4 intake fans are
located on the VALENT system lid and 4 exhaust fans are located on the back panel
of the VALENT. The fans operate in different combinations and automatically turn
on and off during AR. In addition, there are five fans in the lower chassis to cool the
componentry following AR.
Reagent rack
The reagent rack is a stainless steel rack with 44 vial positions for 20mL VALENT vials,
this rack can slide in and out of the instrument without opening the system lid. The
reagent rack is cooled throughout the run keeping reagents below room temperature.
Each reagent rack is calibrated to a specific instrument and can’t be substituted for
another reagent rack.
Reagent vials
All vials have a 20mL capacity with a screw cap and a 50µL dead volume. Vials can
be filled with the volume specified by the selected protocol or with excess volume in
preparation for use in a subsequent run.
The VALENT will mix designated reagents in empty 20mL VALENT vials when online
mixing is selected. Do not re-use mixing vials; always use new, clean mixing vials to
prevent contamination and/or staining artifacts. The VALENT Software automatically
calculates a 50µL dead volume for all mixing vial reagents.
Содержание VALENT
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