Vaisala MM70 - Manual (Page 35)

Chapter 4 _________________________________________ MENU OPERATIONS AND SETTINGS
MM70 alarms by beeping and blinking the backlight. The alarm turns
on when the measured value is not between the alarm limits
(permitted area). Alarm level(s) can be set for only one quantity at a
time. Set the alarm levels as follows:
1. Open the MENU. First press the right arrow key, and then press
the OPEN key.
2. Select Functions. Press the right arrow key.
3. Select Alarm, press the right arrow key.
4. Select Quantity and press the SET key to choose quantity.
5. Select the desired quantity, press the SELECT key. (Only one
quantity can be chosen at a time. Only active quantities can be
selected. To change the active quantities, enter MENU, Display,
Quantities and units).
6. Select the first limit, press the SET key (if the alarm function is
ON, take it OFF). Set the alarm level by using arrow keys. Press
the +/- key to choose the sign of the alarm level. Press the OK
key to save the setting.
7. Select the second limit, then follow instructions in step 6. The
alarm will go off when the upper limit is exceeded or when the
lower limit is gone below.If you have only one limit, e.g. if you
want to detect if the a
w
reaches 0.9, set the upper limit to 0.9 and
the lower limit so low that it never will be reached (for example
0). Thus, the MM70 will alert when RH rises above 0.9 a
w
.
8. Select Alarm ON/OFF, press the ON key to activate the alarm
and return back to the basic display.
9. A note symbol appears on the upper left corner.
10. When the alarm level is reached, you can stop alarming by
pressing the OK key. To reactivate the alarm function, answer
YES. To stop the alarm function completely, answer NO.
NOTE The alarm is not in function when the device is turned off. Remember
to turn off the automatic power off, see Automatic Power Off on page
27.
VAISALA _______________________________________________________________________ 33