Teledyne 3000TA-XLEU - Trace oxygen analyzer - Manual (Page 21)

Trace Oxygen Analyzer Introduction
Teledyne Analytical Instruments 5
requires unfastening rear panel screws and sliding the unit out of the
case.
1.6 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
optional and may not appear on your instrument. The connectors are
described briefly here and in detail in Chapter 3 Installation.
 Power Connection Universal AC power source.
 Gas Inlet and Outlet One inlet and one exhaust out.
 Analog Outputs
0–1 VDC oxygen concentration plus 0-
1 VDC range ID, and isolated 4–20 mA
DC oxygen concentration 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-XL-EU for
controlling external solenoid valves
only.
 Remote Span/Zero Digital inputs allow external control of
analyzer calibration.
 Calibration Contact To notify external equipment that
instrument is being calibrated and
readings are not monitoring sample.
 Range ID Contacts Four separate, dedicated, range relay
contacts. Low, Medium, High, Cal.
 Network I/O Serial digital communications for local
network access. For future expansion.
Not implemented at this printing.