YSI 2700 SELECT, User Manual

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5-4
Press [2] for Buffer to initiate a 15-second cycle of the Buffer Pump. This selection allows you
to prime the buffer system. Use it after replenishing the buffer bottle or replacing tubing. Also
use it to troubleshoot problems or find leaks.
Select service: 1-Sipper 2-Buffer 3-Cal
4-Stir speed 5-Monitor 6-Turntable
Press [3] for Cal to initiate a 10-second cycle of the Cal Pump. This selection allows you to
prime the calibrator system. Use it after changing the calibration solution or replacing tubing.
Also use it to troubleshoot problems or find leaks.
Select service: 1-Sipper 2-Buffer 3-Cal
4-Stir speed 5-Monitor 6-Turntable
Press [4] for Stir Bar to adjust the stir bar speed. During RUN Mode operation the stir bar has
two operating speeds: normal speed, at which the stir bar rotates smoothly in the chamber and
accelerated speed, at which the stir bar looses synchronization with the motor housed below and
jumps. This jumping action helps clear the sample chamber of air bubbles during a flush cycle.
Adjust until stir bar jumps
1-Increase speed 2-Decrease speed
Using the 1-Increase and 2-Decrease choices adjust the Stir Bar. Lower the speed to observe
synchronous rotation, then increase the speed until the stir bar "jumps" and looses synchronous
rotation. At this point release the [1] key. If jumping does not occur, adjust the Stir Bar speed to
the maximum setting.
Press [0] to exit the stir bar menu level.
Select service: 1-Sipper 2-Buffer 3-Cal
4-Stir speed 5-Monitor 6-Turntable
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If you press [5] for Monitor, you will access the functions used to align and prime the YSI 2730
Monitor and Control Accessory. Refer to the YSI 2730 Monitor and Control Accessory User’s
Manual for details.
If you press [6] for Turntable, you will access the functions used to align the YSI 2710
Turntable. Refer to the YSI 2710 Turntable Operation Manual for details.
Press [0] two times to backup to the instrument function selections.
Select instrument function
1-Service 2-Setup 3-Diagnostic
You have now completed the Service menu selections.