Overpressure; Conditions - Teledyne SyriXus 65x Installation And Operation Manual

To Clean the
Cylinder

9.13 Overpressure

Conditions

EAR99 Technology Subject to Restrictions Contained on the Cover Page
SyriXus Series Pumps Installation and Operation Guide
Section 9 Pump Maintenance, Troubleshooting, and Servicing
1. Press
>
CONST FLOW
pump if more than one is present.
2. Press a softkey to run the desired pump.
3. Run the pump until the message "CYLINDER EMPTY" is dis-
played. It may be necessary to turn OFF auto-refill (Section 3.4.3
"Refill") so that the pump stops when the cylinder is empty.
4. Place the pump inlet line in a flask containing a compatible sol-
vent or a detergent solution.
5. Press . You will be asked to designate the pump to refill if
REFILL
more than one is present. Press a softkey to refill the pump.
6. Fill the pump and repeat this procedure several times. Place the
pump inlet line in a flask containing distilled water or appropri-
ate solvent. Fill the pump and then run it until empty. several
times to flush out any solvent or detergent solution.
7. Run the pump until the message "CYLINDER EMPTY" is dis-
played. You are now ready to fill the pump with new liquid sol-
vent.
Do not leave buffer solutions which contain dissolved salts or corro-
sive buffers in the cylinder overnight or for long periods of time. The
pump should be stored with methanol or isopropanol (at least par-
tially fill the cylinder with either solvent and then run the pump until
the message "CYLINDER EMPTY" is displayed) when it is not being
used.
The operator can set the maximum pressure limit on the pump con-
troller (refer to Section 3.8.7 "LIMITS"). The pump can be set to stop
running if an overpressure condition occurs.
A shear key is located in the worm gear assembly of the pump. Should
the maximum pressure circuit fail and excessive pressures (pressures
that exceed maximum pressure limits) persist in the operation of this
pump, the torque limiting shear key may become damaged. The shear
key will yield at pressures slightly above maximum pressure, to
protect the pump from permanent damage.
In the event of a shear key failure, the pump will sound as though it is
running, but the piston will not move up the cylinder. When this
occurs, the pump motor will not stop automatically.
Damage to the pressure transducer and push tube could be
possible if the key failed due to extreme overpressure.
. You will be asked to designate which
RUN
NOTE
WARNING
9-17