General Tools and Instruments AQ150 - Manual (Page 11)

3. To set the low temperature alarm limit, follow the instructions in Step 2 on previous page,
subtituting “low” for “high” and “decreases/decreasing” for “increases/increasing.”
4. When the desired low and/or high temperature alarm level(s) is/are displayed, press the
button to store the setting(s).
Once you have stored the high and/or low alarm temperature level(s), the display will stop flashing and
resume showing the Int
or Ext temperature it was showing when the alarm setting process began.
However, the term AL will remain in the lower left corner. Whenever the display is not flashing, the
button serves as the vehicle for arming and disarming the alarms. If AL appears on the display,
any alarms are armed. If it does not, any alarms are disarmed.
Note: If you set a high alarm limit that is below the real-time Ext temperature, the alarm will sound
within 10 seconds of storing the setting. The alarm will also sound if you set a low alarm limit that is
above the real-time Ext temperature.
To stop the alarm from sounding, press any button.
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