Teledyne 3020M - Explosion proof paramagnetic oxygen analyzer User Manual

Page 38

4 Operation

Model 3020M

4-2

Teledyne Analytical Instruments

The item that is between arrows on the screen is the item that is cur-

rently selectable by choosing ENTER (turn-and-release toward ENTER with
the ESCAPE/ENTER control).

In these instructions, to ENTER means to turn-and-release toward

ENTER, and To ESCAPE means to turn-and-release towards ESCAPE. To
scroll UP (or scroll DOWN) means to turn-and-release toward UP (or
DOWN) as many times as necessary to reach the required menu item.

4.2.1 Mode/Function Selection

When the analyzer is first powered up, and has completed its initializa-

tion and self diagnostics, ESCAPE toggles the instrument between the
ANALYZE screen (Analysis Mode) and the MAIN MENU screen (Setup
Mode). The ANALYZE screen is the only screen of the Analysis Mode.

The MAIN MENU screen is the top level in a series of screens used in

the Setup Mode to configure the analyzer for the specific application. The
DOWN/UP commands scroll through the options displayed on the VFD
screen. The selectable option appears between arrows. When you reach the
desired option by scrolling, ENTER the selection as described below.

ESCAPE takes you back up the hierarchy of screens until you reach the

MAIN MENU again. ESCAPING any further just toggles between the
MAIN MENU and the ANALYZE screen.

4.2.1.1 Analysis Mode

This is the normal operating mode. The analyzer monitors the oxygen

content of the sample, displays the percent of oxygen, and warns of any
alarm conditions. Either control switches you to Setup Mode

Setup Mode

switches back to Analyze Mode if no controls are used for more than
five seconds.

4.2.1.2 Setup Mode

The MAIN MENU consists of 12 functions you can use to customize

and check the operation of the analyzer. Figure 4-1 shows the functions
available with the 3020M. They are listed here with brief descriptions:

AUTO-CAL:

Used to define and/or start an automatic calibration

sequence.

PWD

: Used to establish password protection or change the

existing password.

LOGOUT

: Logging out prevents unauthorized tampering with

the analyzer settings.