Rae ppbRAE 3000 User Manual

ppbRAE 3000 User’s Guide
64
TWA Alarm
You can change the TWA (time-weighted average) Alarm limit value.
The value is typically set by the instrument to match the value for the
calibration gas. It is expressed in parts per billion (ppb). Note: The
default value depends on the measurement gas.
To change the TWA 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
 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.

Rae ppbRAE 3000 Specifications

General

Brand	Rae
Model	ppbRAE 3000
Category	Measuring Instruments
Language	English