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Operation Model 9060L
Teledyne Analytical Instruments 34
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
(approximately 5 seconds) and return to displaying oxygen
concentration.
4.4.2 Set Alarm 2 (LO alarm )
Alarm 2 is preset as a low alarm. To configure this alarm to your
preferences:
1.
Press the SET ALARM 2 function button once.
2.
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
(approximately 5 seconds) and return to displaying oxygen
concentration.
4.4.3 Sensor Fail Alarm
The SENSOR FAIL alarm is factory set to a reading less than
0.05% O
2
. Should this alarm trigger, the ALARM indicator below the
SET function buttons will blink, and the alarm relay contact dedicated to
this function will change state.
The SENSOR FAIL alarm will also activate when the temperature
is below 650°C, or the thermocouple is sensed as open.
4.5 Selecting a Fixed Range or Autoranging
The Model 9060L can operate in fixed high, fixed low, or
autoranging mode. To change modes:
1.
Press and then release the SET HI RANGE and the SET LO
RANGE buttons simultaneously.