Teledyne 3110 operating instructions Ltch Alarm Screen

alarm. A HI alarm activates when the oxygen concentration rises above the setpoint. The LO alarm activates when the oxygen concentration falls below the setpoint.

To set the alarm as either a HI or LO alarm:

1.Use the UP/DOWN keys to navigate to the HI-LO ALARM screen. Then press ENTER to enter the setup screen.

2.Use the UP/DOWN keys to toggle between HI and LO option. Then press ENTER to accept the displayed status.

3.Press ENTER again to save the alarm status and return to the HI-LO ALARM screen.

3.2.9LTCH ALARM Screen

The alarm on the Model 3110 can be set up as latching or non- latching. A latching alarm, once triggered, will remain in alarm status until recognized and reset. Even if the concentration changes back to a non-alarm concentration, a latched alarm will remain in alarm status. A non-latching alarm will cease to alarm when the concentration falls or rises to a non-alarm value.

To set the alarm to either latching or non-latching:

1.Use the UP/DOWN keys to navigate to the LTCH ALARM screen. Then press ENTER to enter the setup screen.

2.Use the UP/DOWN keys to toggle between LTCH and NON- LTCH options. Then press ENTER to accept the displayed status.

3.Press ENTER again to save the alarm status and return to the LTCH ALARM screen.