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Barrier Ring
A 41-mm (1.63-in.) steel alloy armor ring acts as the primary barrier, surrounded by a 13-mm
(0.5-in.) vacuum chamber to provide full protection for the operator.
Imbalance Detector
An imbalance detector monitors the rotor during the run, causing automatic shutdown if rotor
loads are severely out of balance. Even at low speeds, an incorrectly loaded rotor can cause an
imbalance.
Overspeed System
The overspeed system is a safety feature designed to ensure that the rotor does not exceed its
maximum allowable speed. This system includes a photoelectric device in the rotor chamber next
to the drive spindle and an overspeed disk on the bottom of the rotor. Individual rotor manuals
provide information on the correct overspeed disks to be used with each rotor.
The overspeed disk has alternating light and dark sectors. As the rotor spins, the passage of
reflecting and non-reflecting sectors over the photoelectric device generates a series of pulses
detected by the electronic circuitry and software.
After the rotor reaches 600 rpm, the set speed is checked against the overspeed disk. If the set speed
is greater than the maximum speed permitted by the disk, the speed setting is automatically
lowered to the maximum speed of the disk, but the run continues without interruption. An alert
appears to alert you to the change.
Dynamic Rotor Inertia Check (DRIC)
As the rotor accelerates between 15000 and 20000 rpm, the instrument checks the rotor inertia and
calculates the rotor energy for the speed set by the user. If the calculated rotor energy is excessive,
the instrument first attempts to reduce the speed to an appropriate level and continues the run. The
system displays an alert message to notify you of this change. If a safe speed cannot be determined,
the instrument stops the run with braking to avoid possible damage.
Specifications
Only values with tolerances or limits are guaranteed data. Values without tolerances are informative data,
without guarantee.
PN B08115AF
1
Description
Specifications
1-3
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