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Teledyne 2120XL - Trace Nitrogen Analyzer User Manual

Page 53

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Trace Nitrogen in Argon Analyzer

Operation

Teledyne Analytical Instruments

41

Weight of Digital

Filter: 4

The current filter setting (4 in this case) will be flashing. It can be

modified from 0 (no filtering) to 10 maximum filtering using the ▲/▼
keys. Pressing ENTER will accept the value and return to the SYSTEM
menu.

The default setting should suffice for most applications. In some

applications where speeding the response time with some trade off in
noise is of value, the operator could decrease the number of the digital
filter. In applications where the signal is noisy, switch to a higher
number, however, the response time will decrease.

4.5.1.2

S

ELF

-T

EST

The system self-test is automatically initiated when the unit is

powered up. It can also be activated by the user from the SYSTEM menu.
To manually initiate a self-test, press the STSTEM key and navigate to
Self-Test using the ◄►arrow keys. Press ENTER to engage the
function and the following screen appears:

Perform System Test?

Yes No

Pressing ENTER will begin the Self-Test. A successions of

diagnostic screens will follow:

RUNNING DIAGNOSTIC

Testing Preamp — 83

During preamp testing there is a countdown in the lower right

corner of the screen. When the testing is complete, the results are
displayed.

Power: ##

Analog: ##

Preamp: ##


The module is functioning properly if it is followed by OK. If a

problem is detected, a number will appear next to the heading and