Teledyne 3010MA, Operating Instructions Manual

Page: 54 / 88

Part 1 Control Unit Model 3010MA
Teledyne Analytical Instruments
54
4. Are either of the alarms to be defeated?
The defeat alarm mode is incorporated into the alarm circuit so that
maintenance can be performed under conditions which would normally
activate the alarms.
The defeat function can also be used to reset a latched alarm. (See
procedures, below.)
If you are using password protection, you will need to enter your
password to access the alarm functions. Follow the instructions in Section
4.3.3 to enter your password. Once you have clearance to proceed, enter
the
Alarm function.
Press the
Alarm
button on the front panel to enter the
Alarm
function. Make sure that AL–1 is blinking.
AL—1 AL—2
Choose Alarm
Set up alarm 1 by moving the blinking over to
AL–1
using the < >
arrow keys. Then press
Enter
to move to the next screen.
AL—1 98.00 % HI
Dft—N Fs—N Ltch—N
Five parameters can be changed on this screen:
• Value of the alarm setpoint, AL–1 #### % (oxygen)
• Out-of-range direction, HI or LO
• Defeated? Dft–Y/N (Yes/No)
• Failsafe? Fs–Y/N (Yes/No)
• Latching? Ltch–Y/N (Yes/No).
To define the setpoint, use the < > arrow keys to move the blinking
over to AL–1 ####. Then use the
∆∇
arrow keys to change the number.
Holding down the key speeds up the incrementing or decrementing.
(Remember, the setpoint units are percent-of-oxygen.)
To set the other parameters use the < > arrow keys to move the
blinking over to the desired parameter. Then use the
∆∇
arrow keys to
change the parameter.
Once the parameters for alarm 1 have been set, press Alarms again,
and repeat this procedure for alarm 2 (AL–2).