OPERATIONS

1.6SET THE ALARMS

The lines indicating the 100% graduations around the High and Low Alarm Settings Knobs are only intended as guides, and not as precise settings.

Once the desired oxygen concentration has been set, bring the high alarm setting down, by turning the High Alarm Setting Knob anti-clockwise, until the alarm is triggered, and then take the high alarm setting up by approximately 5%. Bring the low alarm setting up, by turning the Low Alarm Setting Knob clockwise, until the alarm is triggered, then take the setting down by approximately 5%. These settings will create a “window” of approximately 10%, within which the set oxygen concentration will now be measured. This window can be increased or decreased, according to the users requirements. Any deviation from this set window will trigger the alarm.

The graph alarm is accurate at 100% and within ±8% at 21%, and the low alarm is most accurate at 21%, and within ±8% at 100%. This is depicted in the graph below.

 

 

 

Oxygen Monitor

 

 

 

 

Alarm Setting Tolerances

 

 

100

 

 

 

 

 

80

 

 

 

 

Setting

60

 

 

 

Alarm Point

Alarm

 

 

 

Low Alarm

 

 

 

 

 

 

 

 

High Alarm

 

40

 

 

 

 

 

 

 

 

 

20

 

 

 

 

 

20

40

60

80

100

 

 

Oxygen Concentration Reading

 

The instrument will alarm at any oxygen concentration below 18%.

In the event of a violation of the pre-set alarm limits, the instrument will provide both an audible and a visual alarm signal. Under these conditions, it is possible to “mute” or temporarily silence the audible alarm tone for about 60 seconds to allow corrective action to be taken. If the condition is not rectified within this time, then the audible alarm tone will be automatically reinstated. Audible alarm signals are tonally matched to the type of threshold violations i.e. low alarm violations are signalled via a lower pitched audible signal, while high alarm violations are signalled via a higher pitched audible signal.

TELEDYNE ELECTRONIC TECHNOLOGIES

Analytical Instruments

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Teledyne TED 191 instruction manual Oxygen Monitor, SET the Alarms
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TED 191 specifications

The Teledyne TED 191 is an innovative device designed to enhance various technologies in the realms of data acquisition and signal processing. This cutting-edge equipment has garnered attention for its outstanding performance, robustness, and versatility, making it a popular choice among professionals in numerous industries, including aerospace, military, and environmental monitoring.

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