1.
Unlock the control panel door if necessary.
2.
After the alarm becomes activated, the “SET” button must be pressed to disable it.
The message “AO” appears in the display. The alarm is disabled for 10
seconds. After 10 seconds, the alarm may activate again, but only if an
alarm condition is present.
If the alarm is activated and you wish to change the alarm units:
a.
Press the “SET” button for 5 seconds.
First “AO”, then “SE” message will appear in the display.
b.
You can now proceed with the changing the alarm limits as described in Section
4.4.
c.
After you are all done with the changes, lock the control panel door if
necessary.
4.6 Disabling the Alarm
1.
Unlock the control panel door if necessary.
2.
On power up, when you hold the “LOW” button down, an “AO” message
appears in the display and the beeper sounds. This will disable the alarm
function.
(This action sets the high temperature limit to 121(°F) or 49(°C), the low
temperature limit to 01(°F) or –17(°C), the high humidity limit to 99, and the
low humidity limit to 01. Since these limits are outside the normal
measuring range of the alarm recorder, the alarm function is effectively
disabled.)
The alarm limits are set this way when you receive the unit. If the alarm is
disabled, you must re-initialize the instrument. After you are done with the
changes, lock the door, if necessary.
3.
To verify the settings after re-initializing is completed, press the “LOW” button to
get the low value, and the “HIGH” button to get the high value.
Alarm Operation
4
4-5
Summary of Contents for CT485B-110V-G-AL
Page 23: ...Setting Up the Recorder 2 2 14 Notes...
Page 27: ...Powering Up the Recorder 3 3 4 Notes...
Page 33: ...Alarm Operation 4 4 6 Notes...
Page 43: ...Using the Cal Lock Kit 6 6 2 Notes...
Page 45: ...Using the Voltage Input Adapter Optional 7 7 2 Notes...
Page 49: ...8 4 Notes Maintaining the Recorder 8...
Page 57: ...Specifications 11 11 4 Notes Notes...
Page 59: ...CE Approval 12 Notes 12 2...