Teledyne 4020 - Hydrocarbon analyzer User Manual

Page 53

Total Hydrocarbon Analyzer

Operation

Teledyne

Analytical

Instruments

4.6.4.2

ETUP

ODE

The MAIN MENU consists of functions you can use to customize

and check the operation of the analyzer. Figure 4-3 shows the functions
available in the Model 4020. They are listed here with brief descriptions:



AUTO-CAL:

(Option) Used to define and/or start an

automatic calibration sequence.



PSWD:

Used to establish password protection or change the

existing password.



LOGOUT:

Logging out prevents unauthorized tampering with

the analyzer settings.



MODEL:

Displays Manufacturer, Model, and Software

version of the instrument.



SELF-TEST:

The instrument performs a self-diagnostic

routine to check the integrity of the power supply, output
boards, cell and amplifiers.



SPAN:

Set up and/or start a span calibration.



ZERO:

start a zero calibration.



ALARMS:

Used to set the alarm setpoints and determine

whether each alarm will be active or defeated, HI or LO
active, and failsafe or not.



RANGE:

Used to set up three analysis ranges that can be

switched automatically with auto-ranging or used as
individual fixed ranges. A digital range selection mode is
incorporated that uses the remote calibration inputs for range
selection.

 FILTER: This function sets the digital filter from 0 to 7, 0

being the fastest response time, and 7 being the slowest. The
default is 4.

 ANALOG-OUT ADJUST: Calibrate Analog Output
 LINEARIZATION: A restricted function not generally

accessed by the end user. It is used to linearize the output for
the range of interest.