The Range Function - Teledyne 3010TAC Operating Instructions Manual

4 Operation
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.
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
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 < >
•
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
•
times or
Go to Ltch– and then press either
(Toggle it to N and back to 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
Low
Med
High
The Model 3010TAC is set at the factory to default to autoranging. In
this mode, the microprocessor automatically responds to concentration
changes by switching ranges for optimum readout sensitivity. If the current
4-18: Part I
AL—1 1000 ppm HI
Dft—N Fs—N Ltch—N
two times. (Toggle it to Y and then back to N.)
–OR –
Limits
0–100 ppm
0–1,000 ppm
0–10,000 ppm.
Teledyne Analytical Instruments
arrow keys to
< > arrow keys to move < > < > < >
two times or two times.
Model 3010TAC
two