4 Operation | Model 3300TB | |
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until the display reads the desired percent concentration. (if within 5 seconds no key is pressed, the instrument will return to the sample mode and display oxygen concentration).
After setting the value wait for the unit to time out of this mode (ap- proximately 5 seconds) and return to displaying oxygen concentration.
4.4.2 Set Alarm 2
Alarm 2 can be set either as a high or low alarm. To configure this alarm to your preferences:
1.Press the SET ALARM 2 function button once.
2.The display will flash either HI or LO depending on what the alarm was configured in the last time. If the alarm configuration must be changed, use the Up or Down keys to toggle the alarm from HI to LO or viceversa (if within 5 seconds no key is pressed, the instrument will return to the sample mode and display oxygen concentration).
3.To change the setting at which the alarm will be actuated, press the SET ALARM 2 function button once more. The alarm setpoint will flash on the LED display. Press either the Up or Down keys to raise or lower the displayed value, as required, until the display reads the desired percent concentration. (if within 5 seconds no key is pressed, the instrument will return to the sample mode and display oxygen concentration)
After setting the value wait for the unit to time out of this mode (ap- proximately 5 seconds) and return to displaying oxygen concentration.
4.4.3 Sensor Fail Alarm
The SENSOR FAIL alarm triggers if, during calibration, the raw cell output for the given oxygen level is too low. (See Calibration Characteris- tics in Chapter 2.). Should this alarm trigger, the ALARM indicator below the SET function buttons will start blinking. Replace the cell before pro- ceeding.
Teledyne Analytical Instruments |
