CHART ULTRADOSER 500S, Руководство пользователя

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www.chartdosers.com PN 15920 Page 14 of 43
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To ensure consistent dosing results, an accurate dose must be delivered to each bottle (or container) AND each
bottle (or container) must be processed in the same manner.
Chart’s UltraDoser
®
500S LN
2
Dosing System guarantees that a precise, accurate dose of LN
2
is delivered. The
UltraDoser 500S system meets the following fundamental dosing conditions.
Pure Liquid at the Dosing Head
Pure liquid (i.e. liquid with no gas pockets) must be instantaneously available at the dosing head. Chart has a
unique internal design that ensures the continual availability of pure liquid at the dosing head.
Constant Pressure
Constant pressure at the dosing head is a critical requirement for reproducible dose size. The unit utilizes a float
valve that allows for a stable liquid level. This allows the pressure at the dosing head to remain constant during
operation.
Dose Duration
The dose duration is tightly controlled by the 500S controller’s electronics. Dose duration is measured in
milliseconds.
IMPORTANT: The following production conditions must be controlled to ensure consistent dosing results:
1. Product bottle (or container) fill levels must be consistent.
2. Product bottle (or container) fill temperatures must be consistent.
3. Capping techniques must be consistent.
4. Product may not be spilled or splashed out of bottles (or containers) following dose.
IMPORTANT: Enough time must be allowed for specific dosing operations. When using the UltraDoser 500S
system for inerting purposes (removal of oxygen) time must be allowed between dosing and complete capping
of the bottle (or container). See “Inerting”, page 15, for additional information.