Specifications

PN SJ-IM-8AC
3-4
Troubleshooting
Accessing the Rotor in Case of Power Failure
Accessing the Rotor in Case of Power Failure
If facility power fails only momentarily, the instrument will resume operation when power is
restored and the rotor will return to set speed. However, if the rotor came to a complete stop, you
will have to restart the run when the power is restored. In either case, a power outage message
will be displayed on the control panel to indicate that a power outage has occurred.
WARNING
Any maintenance procedure requiring removal of a panel exposes the operator to
the possibility of electrical shock and/or mechanical injury. Therefore, turn the
power off (O) and disconnect the instrument from the main power source by
removing the Mains (power) plug from the outlet receptacle, and refer such
maintenance to qualified service personnel.
In the event of an extended power failure, it may be necessary to override the door-locking
mechanism manually to remove the rotor and retrieve your sample.
WARNING
The following procedure should be implemented only when absolutely necessary
and only by qualified service personnel.
1 Turn the power off and disconnect the power cord from the main power source.
No lights on the control panel are lit.
l1-
Rotor imbalance
Rotor load is severely out
of balance
Run shuts sown with
maximum brake
• Make sure that tubes or bottles are
loaded symmetrically in the rotor.
• With swinging bucket rotors, remove the
buckets and lubricate the pivot pins
where the buckets contact as described
in the applicable rotor manual.
Unlubricated pivot pins can prevent the
buckets from reaching horizontal
position, which can cause imbalance.
— During low-temperature
runs (near -10°C), ice
forms around the door
opening
Door will not open at
the end of a run
To minimize icing, wipe moisture from the
chamber, the chamber gasket and the inner
door surface before each run. Keep the door
closed as much as possible.
a. For Beckman Coulter Customer Service call 1-800-742-2345 (U.S.A. or Canada) or contact your local Beckman Coulter office.
b. Friction Reduction System.
Table 3.1 Diagnostic Message Chart (Continued)
Diagnostic Message Problem Result Recommendation