10
Note:
You can set the response time to 3 seconds at all radiation
levels using the Utility Menu; see “The Utility Menu” in this
chapter.
Using the Alert
The Radalert 100 can sound an audible alert whenever the
radiation reading reaches a certain level. The three buttons on the
end of the Radalert 100 allow you to turn Alert mode on and off
and to set the alert levels.
To use Alert mode, follow these steps:
1. Press the Set button on the end panel. The numeric display
shows the current alert level (in CPM, CPS, mR/hr, or
µ
Sv/hr,
depending on the current settings). The radiation symbol and
SET
icon are also displayed.
2. To change the displayed alert level, use the + and – buttons
to adjust the level up or down.
3. When the desired alert level is displayed, press the Set button
again to save the new level and to continue in Alert mode (the
SET
icon is no longer displayed).
The radiation symbol is displayed to show that the Radalert
100 is in Alert mode.
4. If you want to reset the alert level while you are in Alert
mode, press the Set button twice (Off, then Set), and repeat #2
and #3.
5. To turn off Alert mode, press the Set button once.
When you start Alert mode, the Radalert 100 restarts counting.
When you first start the Radalert 100, the alert levels are preset at
.10 mR/hr, and the equivalent in CPM,
µ
Sv, and CPS. If you set the
alert level in one mode, the settings for the other modes are
automatically updated to the equivalent values. When you change
to or from SI units, the alert level is reset to the defaults.