Buchi DuMaster D-480, Руководство по эксплуатации

Страница: 191 / 354

Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG
8 - Maintaining the instrument 191
Purpose and frequency of refilling of the Regainer
Why will the Regainer refilled?
It is necessary to refill the Regainer to ensure complete implementation of the sample and to avoid
measurement errors. If the Regainer will not be filled up, the lifetime of the Reductor reduces
drastically. For an economic operation we recommend to observe a sufficient fill level. For a refill, use
the rod by pressing it tightly onto the Regainer. Due to pressure surges the Regainer may shift toward
the top.
When will the Regainer refilled?
The intervals at which to refill the Regainer depend very much on what substanmces you are
analyzing. Usually the Regainer should be refilled when the ash crucible will be emptied. When
analyzing samples with extremely high mineral compound content a replacement becomes necessary
earlier.
Refill the Regainer
Note
The following section describes the first part of refilling of the Regainer. The topic is continued in
"Refill the Regainer".
Process
The section is divided into the following phases:

Preparing the instrument, Gas pressure

Refill the Regainer
Safety instruction
Strictly observe the safety instruction "Replacing the ash crucible/finger" under
Warning notes
during operation
(on page 24).
Requirements
Before starting work, the following requirements must be met:

Keep the Regainer ready.

Keep the metal funnel ready.
Phase 1: Preparing the instrument, cool down the furnace / gas pressure
Safety instruction
Strictly observe the safety instruction "Gas pressure" under
Warning notes during operation
(on
page 24).
To prepare the instrument for maintenance work follow the instructions in "Preparing the instrument,
Gas pressure" in Preparing and following up maintenance work.