51
Figure 5.4.3. Cutaway views of 54-05-A0101
motorized pump showing major component
assemblies
5.4.2 Specific problems with motorized
pump
5.4.2.1 Pump will not turn on
Possible causes:
Pump is not properly attached to the instrument.
Instrument is not turned on. Instrument battery
doesn’t have enough power for pump operation.
Solution(s):
Make sure pump is properly attached to
instrument (it may be necessary to remove the
instrument weather cover until the pump is
attached), recharge or replace instrument
battery pack.
5.4.2.2 Can’t resume normal operation after a
“Low Flow” shut down
Possible causes:
Sample probe or internal pump filters need
replacement, sample hose kinked, sample
probe and probe assembly contains fluids.
Solution(s):
Turn off PhD Ultra, remove pump, disconnect
sample probe and hose assembly, allow any
trapped fluids to drain; replace filters as
necessary, examine hose to make sure there
are no kinks blocking normal flow.
5.5
Returning your PhD Ultra to
Biosystems for service or repair
Please contact the Biosystems Service Department
at (860) 344-1079 to obtain a “Return Authorization”
number prior to shipment. A Biosystems Service
representative will record all relevant information or
special instructions at that time.
To insure safe transport please use the original PhD
Ultra packing materials, or other packing materials
which similarly protect the instrument and
accessories.
Note: The return authorization number must be
clearly marked on the outside of the box.
Prominently showing the return authorization
number on the outside of the box ensures that it is
immediately identified and logged into our system at
the time it is received. Proper tracking helps avoid
unnecessary delays in completion of service
procedures.
Note: It is usually best to return the instrument
together with all accessories such as spare
battery packs, chargers, and optional sample
drawing pumps.
Please contact the Biosystems Service
Department at (860) 344-1079 if you require any
additional information.
Thank you for choosing the
PhD Ultra, and thank you for
choosing Biosystems.
