Filter
Top Products
3 Operation Model 6600
3-24 Part I
Teledyne Analytical Instruments
Use the UP/DOWN to choose the alarm again. Then Enter to move to
the next screen.
AL1: 1ØØØ ppm HI
Dft:N Fs:N Ltch:N
Five parameters can be changed on this screen:
• Value of the alarm setpoint, AL1: ####
• 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 UP/DOWN switch to change the
number. Holding down the key speeds up the incrementing or
decrementing. Enter when done, blinking cursor moves to the
next field.
• To set the other parameters use the UP/DOWN key, and then
Enter to move to the next field..
• Once the parameters for alarm 1 have been set, Enter the Alarms
function again, and repeat this procedure for alarm 2 (AL2).
• To reset a latched alarm, go to Dft– and then toggle either Up or
DOWN two times. (Toggle it to Y and then back to N.)
–OR –
Go to Ltch– and then toggle either UP two times or DOWN two
times. (Toggle it to N and back to Y.)
3.6 The Range Select Function
The Range function allows you to manually select the concentration range
of analysis (MANUAL), or to select automatic range switching (AUTO).
In the MANUAL screen, you are further allowed to define the high and low
(concentration) limits of each Range, and select a single, fixed range to run.
CAUTION: If this is a linearized application, the new range must
be within the limits previously programmed using the
System function, if linearization is to apply through-
out the range. Furthermore, if the limits are too small
a part (approx 10 % or less) of the originally linear-
ized range, the linearization will be compromised.