Rae ppbRAE 3000 - High Alarm; Low Alarm

ppbRAE 3000 User’s Guide
62
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.
Press [N/-] to undo the changes and revert to the previous settings.
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.