Manual

1-5
Trace Oxygen Analyzer Introduction 1
Teledyne Analytical Instruments
1.7 Rear Panel (Equipment Interface)
The rear panel, shown in Figure 1-2, contains the gas and electrical
connectors for external inlets and outlets. Some of those depicted are op-
tional and may not appear on your instrument. The connectors are described
briefly here and in detail in chapter 3 Installation.
Figure 1-2: Model 3000TA Rear Panel
• Power Connection Universal AC power source.
• Gas Inlet and Outlet One inlet (must be externally valved)
and one exhaust out.
• Analog Outputs 0–1 V dc concentration plus 0-1 V dc
range ID, and isolated 4–20 mA dc plus
4-20 mA dc range ID.
• Alarm Connections 2 concentration alarms and 1 system
alarm.
• RS-232 Port Serial digital concentration signal output
and control input.
• Remote Probe Used in the 3000TA for controlling
external solenoid valves only.
• Remote Span/Zero Digital inputs allow external control of
analyzer calibration.