Front Panel - Teledyne 300 Instruction Manual

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 02163G Teledyne API Model 300 CO Analyzer Instruction Manual - Page 24