Teledyne 3000TB - Bulkhead mount trace oxygen analyzer - Manual (Page 15)

1-7
Trace Oxygen Analyzer Introduction 1
Teledyne Analytical Instruments
• Escape Moves VFD display back to the previous screen in a
series. If none remains, returns to the Analyze screen.
1.5.4 I/O Power Button
The red I/O button switches the instrument power between I (ON) and
O (a Keep-Alive state). In the O state, the instrument’s circuitry is operating,
but there are no displays or outputs.
CAUTION: The power cable must be unplugged to fully
disconnect power from the instrument. When
chassis is exposed or when access door is open
and power cable is connected, use extra care to
avoid contact with live electrical circuits.
1.5.5 Access Door
To access the electrical connector panel, or the cell block, the control
panel doubles as an inner door that can be unlatched and swung open (after
unlatching and swinging open the outer access door). See Figure 1-2.
1.6 Recognizing Difference Between LCD &
VFD
LCD has GREEN background with BLACK characters. VFD has
DARK background with GREEN characters. In the case of VFD - NO
CONTRAST ADJUSTMENT IS NEEDED.
1.7 Equipment Interface
1.7.1 Electrical Connector Panel
The electrical connector panel, shown in Figure 1-3, contains the
electrical connections for external inputs and outputs. The connectors are
described briefly here and in detail in the Installation chapter of this manual.
CAUTION: The power cable must be disconnected to fully
remove power from the instrument.