Teledyne 3010TAC - Split architecture trace oxygen analyzer (EU - CENELEC) - Manual (Page 52)

4 Operation Model 3010TAC
4-18: Part I
Teledyne Analytical Instruments
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 Y and then back to N.)
–OR –
Go to Ltch– and then press either
∆
two times or
∇
two times.
(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 Limits
Low 0–100 ppm
Med 0–1,000 ppm
High 0–10,000 ppm.
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