Alarm

The DPL4000 can be set to beep and have the backlight blink when the measurement exceeds pre-determined limits. The alarm level(s) can be set for only one quantity at a time. To set the alarm levels, follow the instructions below:

1.    Open the menu by pressing Open.

2.    Select Functions and press .

3.    Select Alarm and press .

4.    Select Quantity and press Set to select the quantity.  Since the instrument defaults to only displaying Dew Point (Td/f), this will be the only quantity available.  Only one active quantity can be selected at a time. To change which quantities are active, go to Menu - Display - Quantities and units.

5.    Select the first limit and press Set (if the alarm function is on, turn it off). Use the arrow buttons to set the alarm level. To select the sign for the alarm level, press the +/- button. To save the settings, press
OK.

6.    Select the second limit and follow the instructions in step 6. The alarm will go off when either the upper or lower limit is exceeded.  If you will use only one limit, set the upper or lower value to an extreme so that it will never be reached.

7.    To activate the alarm and to return to the basic display, select Alarm On/Off and press On. The note symbol ♫ will appear in the upper left corner of the display.

8.    When the alarm level is reached, you can stop the alarm by pressing OK. To reactivate the alarm, press Yes. To completely stop the alarm, press No.

NOTE	The alarm does not work when the device is turned off.