Range Set-Up; Routine Operation - Teledyne 3220 Instruction Manual

5 Failure and Error Codes
2. Select R1 or R2 and Press ENTER once. Now you can change the limit of the
range selected using the up or down arrow keys.
3. Press ENTER to accept new limit.
4. Press SELECT one more time and LCD should show on of the following
options: "A"= autorange, "R1 F"= fixed on range 1, or "R2 F"= fixed on
range 2.
5. Press ENTER and use the up or down arrow keys to configure whether the
analog output will be fixed on a particular range or it will be allowed to
autorange.
6. Press ENTER to accept the change.
7. If necessary, proceed to the previous or next procedure. Otherwise, press RUN
to place the instrument in the analysis mode.
4.9 Cell Failure Set-up
1. To set the trigger point of the cell failure alarm, press SELECT five times.
2. The LCD should display "CF" = Cell Failure and its trigger value. Press
ENTER to enter the modification mode.
3. Use the up or down arrow keys to change the oxygen value below which the cell
failure alarm will trigger.
4. Press ENTER to accept the change.
5. If necessary, proceed to the previous or next procedure. Otherwise, press RUN
to place the instrument in the analysis mode.

4.10 Routine Operation

During routine operation, the system will require no attention unless an alarm state
occurs. In the event of an alarm indication, the audible alarm may be silenced in one of two
ways:
1. Move the AUDIBLE ALARM switch on the system control module to BYPASS.
This will immediately silence the audible alarm and also prevent an audible
indication from occurring should
2. Press the BYPASS button on the Channel Module. The associated alarm LED will
flash and the AUDIBLE ALARM will be silenced until the ALARM condition is
Teledyne Analytical Instruments
Model 3220
another channel go into an alarm state.
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