Owner's manual

1-5
Percent Oxygen Analyzer Introduction 1
Teledyne Analytical Instruments
Access Door: To provide access to the sensor, the front panel swings
open when the latch in the upper right corner of the panel is pressed all the
way in with a narrow gauge tool. Accessing the main circuit board requires
unfastening the rear panel screws and sliding the unit out of the case.
1.6 Interface Panel (Equipment Interface)
The rear panel, shown in Figure 1-2, contains the gas and electrical
connectors for external inlets and outlets. The Zero and Span gas connectors,
and the Current signal outputs are optional and may not appear on your
instrument. The connectors are described briefly here and in detail in the
Installation chapter of this manual.
Figure 1-2: Model 3000MB Rear Panel
• Power Connection Universal AC power source.
• Analog Outputs 0-1 V dc concentration output, plus
0-1 V 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 3000MB 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 For future expansion. Not implemented
at this printing.