4 Operation Model 3010MB
4-18: Part I Teledyne Analytical Instruments
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 1000 ppm HI
DftN FsN LtchN
Five parameters can be changed on this screen:
• Value of the alarm setpoint, AL–1 #### (ppm or % 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, setpoint units are
parts-per-million.)
• 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).
• To reset a latched alarm, go to Dft and then press either ∆ two
times or ∇ two times. (Toggle it to YY
YY
Y and then back to N.N.
N.N.
N.)
–OR –
Go to Ltch and then press either ∆ two times or ∇ two times.
(Toggle it to NN
NN
N and back to Y.Y.
Y.Y.
Y.)

4.6 The

Range

Function

The Range function allows the operator to program up to three concen-
tration ranges to correlate with the DC analog outputs. If no ranges are
defined by the user, the instrument defaults to:
Range Limits
Low 0–1%
Med 0–5%
High 0–10%