Digital Filter - Teledyne 2120XL Operating Instructions Manual

Operation
Dig Filt: The Model 2120XL includes a user adjustable

digital filter. The filter has settings 1-10. Setting 1 is the least
amount of filtering and 10 is the highest level of damping.
Self–Test: The instrument performs a self-diagnostic test to

check the integrity of the power supply, output boards and
amplifiers.
PSWD: Security can be established by choosing a 5 digit

password (PSWD) from the standard ASCII character set.
(See Installing or Changing a Password, below, for a table of
ASCII characters available.)
Logout: Logging out prevents an unauthorized tampering

with analyzer settings.
More: Select and enter More to get a new screen with

additional sub functions listed.
Auto-Cal: Used to define an automatic calibration sequence

and/or start an Auto-Cal.
Flow: Used to set the flow through the flow controller.

TRAK/HLD: The operator sets whether the instrument

analog outputs track the concentration change during
calibration and sets a time delay for the concentration alarms
after calibration
Cal Hold Timer: Allows alarm suppression and analog

output value hold times during calibration events for a user
adjustable period.
Model: Displays Manufacturer, Model, and Software

Version of the instrument.
Out-Cal: Analog output calibration allows the user to

calibrate the 4 and 20 mA analog output values.
Lin: Used to linearize the output of the controller.

To enter any of the system functions, use the ◄►arrow keys to
move to the function and then use the ENTER key to engage that
function.
4.5.1.1 D F
IGITAL ILTER
Upon entering the digital filter function, the following screen
appears on the display:
Teledyne Analytical Instruments
Model 2120XL
40