Teledyne 3190Z - Zirconium oxide trace oxygen analyzer - Manual (Page 10)

Introduction Model 3190Z
Teledyne Analytical Instruments 2
• Compact and rugged control unit with flush-panel case.
Designed for indoor use. Front panel NEMA-4 rated.
• External probe
1.3 Front Panel Description
All controls and displays except the power switch are accessible
from the front panel. See Figure 1-1. The front panel has seven
pushbutton membrane switches, a digital meter, and an alarm indicator
LED for operating the analyzer. These features are described briefly
here and in greater detail in Chapter 4 - Operation.
Figure 1-1: Front Panel
Function Keys: Seven pushbutton membrane switches are used to select
the function performed by the analyzer:
• Set HI Alarm Set the concentration ABOVE which an
alarm activates.
• Set LO Alarm Set the concentration BELOW which
an alarm activates.
• Set HI Range Set the high analysis range for the
instrument (up to 0-1,000 ppm).
• Set LO Range Set the low analysis range for the
instrument (down to 0-1,000 ppm).
• Span Span-calibrate
the analyzer.