Limit Sensor Calibration - Teledyne SyriXus 65x Installation And Operation Manual

9.15.4 Limit Sensor
Calibration
EAR99 Technology Subject to Restrictions Contained on the Cover Page
SyriXus Series Pumps Installation and Operation Guide
Section 9 Pump Maintenance, Troubleshooting, and Servicing
8. Ensure that the cylinder is unscrewed several turns. If you need
to use a wrench, we recommend a strap wrench or wrenches in
the Teledyne ISCO wrench package (P/N 60-1247-101) which will
not mar the cylinder's outer surface.
9. Center the pump bottom limit sensor with respect to the mount-
ing screws and tighten them.
10. Raise the top limit sensor to the extent of the slots and tighten
the upper screw.
Install only the top screw in the top sensor and align the bottom slot
in the top sensor with the screw hole, at this time. When the pump is
run until the cylinder is empty, the sensor flag on the ball screw will
obstruct access to the bottom screw on the upper sensor. The bot-
tom screw will be installed after the calibration is completed and the
ball screw is lowered.
11. Now the new limit sensors MUST be calibrated, as explained in

9.15.4 "Limit Sensor Calibration".

Once the new limit sensor assembly is installed, the sensors must be
calibrated. Before calibrating the limit sensors, be sure the cylinder is
unscrewed several turns. Follow steps 8-10 in the previous section
(Section 9.15.3 "Limit Sensor Adjustment"). Use the following pro-
cedure to calibrate the limit sensors:
1. Connect the pressure cable and power cord and turn the control-
ler ON.
2. Press REFILL and enter the maximum rate.
3. Press STOP when the interrupter flag is approximately 1/4"
from the full (lower) sensor.
4. Press 'A' (FLOW RATE), and use the number key to set 10
(mL/min). Press the ENTER key.
5. Press REFILL. After the lower limit sensor is interrupted, the
motor will stop.
6. Press CONST FLOW.
7. Press 'A' (FLOW RATE) and select MAX.
8. Press RUN.
Watch carefully and ensure that the sensor flag goes into the top
sensor without contacting the sensor. If the flag collides with the top
sensor, the sensor may be damaged and require replacement.
NOTE
NOTE
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