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High alarm
You can change the High Alarm limit value. The value is typically set by the instrument to
match the value for the current calibration gas. It is expressed in parts per billion (ppb). Note:
The default value depends on the measurement gas.
To change the High Alarm value:
1. Press [Y/+] to increase each digit's value.
2. Press [N/-] to advance to the next digit.
3. Again, use [Y/+] to increase the number.
Repeat this process until all numbers are entered.
When you have completed your selections, press [MODE]. You will see two choices: Save and
Undo. You have the opportunity to register the new settings or to change your mind and revert
to your previous settings.
Press [Y/+] to save the changes.
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Press [N/-] to undo the changes and revert to the previous settings.
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Low alarm
You can change the Low Alarm limit value. The value is typically set by the instrument to match
the value for the current calibration gas. It is expressed in parts per billion (ppb). Note: The
default value depends on the measurement gas.
To change the Low Alarm value:
1. Press [Y/+] to increase each digit's value.
2. Press [N/-] to advance to the next digit.
3. Again, use [Y/+] to increase the number.
Repeat this process until all numbers are entered.
When you have completed your selections, press [MODE]. You will see two choices: Save and
Undo. You can register the new settings or to change your mind and revert to your previous
settings.
Press [Y/+] to save the changes.
l
Press [N/-] to undo the changes and revert to the previous settings.
l
Handheld PID Monitors
79
User Manual
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