2.2 Front panel

2.2 Front panel

This section describes the operator interface from the point of view of the front panel. The front panel consists of a 2-line by 40-character alphanumeric display, 8 push buttons, and 3 status LED’s. Each of these features is described below.

2.2.1 Front panel display

The display is divided into 4 main "fields": the mode field in the upper left, the message field in the top center, the sample concentration field consisting of the most recent instantaneous carbon monoxide value field in the upper right, and the MENU field which occupies the entire bottom line of the display. A typical display is shown in Figure 2.1.

MODEL 300 FRONT PANEL

FIGURE 2.1

The mode field indicates the current mode of the Analyzer. Usually, it shows "SAMPLE A", indicating that the instrument is in the sample mode and that automatic span checking is enabled. Manual span checking or calibration can only be performed by pressing the buttons on the front panel labeled "CALZ", "CALS", or "CAL". Automatic span check only occurs at the preset time. Dynamic span adjust can be performed during automatic or remote span checks. Remote span adjustment is performed via a command from the RS-232 or the external contact closure inputs. Calibration and span adjustments are discussed in greater detail in Section 3.6. Table 2.2 below lists all the possible modes in the Analyzer and their meanings.

P/N 02163G1 Teledyne API Model 300 CO Analyzer Instruction Manual - Page 25

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Teledyne 300 instruction manual Front panel display

FAQ

What are the main features of the front panel?

The front panel consists of a 2-line by 40-character alphanumeric display, 8 push buttons, and 3 status LEDs.

How do I perform manual span checking or calibration?

Manual span checking or calibration can only be performed by pressing the buttons on the front panel labeled 'CALZ', 'CALS', or 'CAL'.

What is the MENU field on the display used for?

The MENU field occupies the entire bottom line of the display and is used for navigating through the different options of the alarm.