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Instructions for Use
Maintenance
Maintenance is not required. In case of error conditions or conditions that require
attention, red Leds (error) or yellow Leds (attention) light up. To verify the error or
condition that requires attention it is possible to read the codes by serial
communication.
If a pump sits for a prolonged amount of time, a visual check of the DB15
connection is recommended to make sure it is free of oxidation.
Any other maintenance must be performed be authorized personnel.
Before carrying out any work on the system, disconnect it from the power
WARNING
supply, vent the pump with the vent valve, wait until the rotor is completely
stopped and wait until the surface temperature of the pump is below 50° C.
In the event the pump fails, you can use the Agilent repair service or the "Agilent advanced
exchange service", which gets you a remanufactured system to replace the failed system.
The exchange 305-IC is shipped when the order is placed. You then return the failed
TwisTorr 305-IC in the box that the exchange TwisTorr 305-IC comes in.
Before returning a pump for repair or advanced exchange service to the
NOTE
manufacturer, it is essential to complete and send to the local sales office the
"Request for Return" form attached to this instruction manual. Copy of the same
must be inserted in the packaging of the system before shipping.
If a system needs to be scrapped, ensure that local regulations are followed for
appropriate disposal.
Rotor life
The fatigue resistance of TwisTorr 305-IC turbomolecular pump rotor resulting
from theoretical evaluation is 405000 cycles of ramp up from stop to full speed and
back to stop. As a precautionary measure, considering the typical usage of the
pump and taking into account safety limits, Agilent recommends to return the
pump after 17 years of use for maintenance.
Agilent TwisTorr 305-IC User Manual
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