Teledyne 3220 - Multi-channel oxygen monitor system - Manual (Page 49)

Oxygen Monitor System 5 Failure and Error Codes
Teledyne Analytical Instruments 35
d. Repeat Step “c” to modify the remaining digits.
e. Press
ENTER to save the ID Code.
2. If necessary, proceed to the previous or next procedure. Otherwise, press
RUN to place the instrument in the analysis mode.
4.7 Enabling/Disabling the Pass Code
1. At the Front Panel of the Channel Module to be configured:
a. Press
SELECT seven times to enter the “Pass Code” Mode. (The current
pass code state {“Poff” = Passcode off or “P on” = Passcode on} will be
displayed.)
b. Press ENTER.
c. Use the up or down arrow key to modify the state of the code.
d. Press ENTER to accept the change.
2. If necessary, proceed to the previous or next procedure. Otherwise, press RUN
to place the instrument in the analysis mode. Now, access should be restricted to
all functions until passcode is entered.
3. To disable passcode, press SELECT once and the LCD will display COdE.
While COde is shown, press the Down arrow key followed by the Right arrow
key. Restrictions are now removed temporarily so that you can go back and set
“P off” = Passcode off again. If you do not set “P off”, restrictions will return
when analyzer returns to the Run mode.
4.8 Range Set-up and Selection
The following should be followed to set-up the ranges. The 3220 Channel module
has two ranges. The defaults are: R1= 0-25 %, and R2 = 0-100 % O2. This two ranges can
be reset to different limits. This only has an effect on the analog output (0-10 vdc output or
4-20 madc output) as the unit will keep track of the oxygen reading throughout its operating
range (which is 0-100 % O2) on the LCD display. The analog output can be fixed on one of
the two ranges or be allowed to autorange. If you decide to autorange be warned that there
are no range ID outputs on this analyzer. It is a limitation due to its backward compatibility
to its predecessor available outputs.
1. Press SELECT three times. R1 should flash on the LCD along with the value of
its limit. You can use the arrow keys to toggle between R1 and R2.