3 Operation | Model 6600 | |
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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: ####
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•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.)
Go to Ltch– and then toggle either UP two times or DOWN two times. (Toggle it to N and back to Y.)
3.6The Range Select Function
The Rangefunction 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.
Teledyne Analytical Instruments