NuAire NU-5500, Руководство по эксплуатации и обслуживанию

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3 - CO
2
Tank Switch Back (option)
Note function can only be enabled with the CO
2
tank 2 option in
use. Unit will automatically check tank 1 for gas pressure
every 12 hours, and stay on tank 1 if pressure is detected
4- Closed Door CO
2
Zero/Span Calibration
This option enables user to run zero & span calibration on the CO
2
sensor with out opening the incubator door. (See section 9.4.2)
5 - Audible Alarm Return Enable
This function will enable or disable the audible alarm return or
ringback function. The value display will show "ON" or "OFF"
corresponding to the current condition. If the function is "ON",
the audible alarm will provide a ringback of the alarm condition.
If the user pushes any key to silence the audible alarm, after 15
minutes of silence the audible alarm will return. If the function is
"OFF", the ringback of the alarm condition will never come back
after the user pushes a key to silence the audible alarm.
6 - Password Protection
This function allows users to disable/enable password to prevent unauthorized change of
setpoint, using the UP, DOWN, and SELECT keys combination. Password requires
three digits. If password option is enable, whenever ‘SET UP ' key is pressed, password
will be required. Every time password option is disabled and re-enable, old password is
cleared and new password will be required. To set password:

Press hidden key to enter option menu.

Press UP to advance to "opt".

Press "SEL" to advance to "Pass".

Press UP to enable option, "ON".

Press hidden key twice to exit option menu.

Enter your password. When front panel message displays "Ent-Pas".

Re-enter your password, when front panel message displays 'Pas-rEq'.

Press mode key to SETUP, then back to run.
7- Auto Zero Enable
This function turns the CO
2
automatic zeroing routine on and off.
Default on.
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