Teledyne 3300PA Setting the Alarm Setpoints, Percent Oxygen Analyzer Operation HI Range, LO Range

Percent Oxygen Analyzer Operation 4

4.3.1 HI Range

Setting the HI Range fullscale value defines the LEAST sensitive analysis range to be used. To set the HI Range:

1.	Press the SET HI RANGE Function button once.
2.	Immediately (within 5 seconds) press either the ∆ or ∇ button to
	raise or lower the displayed value, as required, until the display
	reads the desired fullscale percent concentration.

4.3.2 LO Range

Setting the LO Range fullscale value defines the MOST sensitive range to be used. To set the LO Range:

1.	Press the SET LO RANGE Function button once.
2.	Immediately (within 5 seconds) press either the ∆ or ∇ button to
	raise or lower the displayed value, as required, until the display
	reads the desired fullscale percent concentration.

4.4Setting the Alarm Setpoints

The alarm setpoints can be adjusted over the full range of the analyzer (0-25% oxygen content). They are set as a percent of oxygen content, so that an alarm set to indicate 9.6 on the display will activate at 9.6% O2 on any O2 range.

4.4.1 Set Alarm 1

Alarm 1 can be set either as a high or low alarm. To configure this alarm to your preferences:

1.Press the SET ALARM 1 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 1 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,

Teledyne Analytical Instruments 4-3