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Introduction
Power Connection
•
Gas Inlet and Outlet One inlet (must be externally valved)
•
9-Pin RS-232 Port
•
50-Pin Equipment Interface Port
•
Analog Outputs: 0–1 VDC oxygen concentration plus
0-1 V dc range ID
Alarm Connections: 2 concentration alarms and 1
system alarm.
Remote Valve: Used in the 3000ZA 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 currently
implemented.
Optional
Calibration Gas Ports: Separate fittings for zero, span, and
•
Current Signal Output: Additional isolated 4–20 mA
•
Note: If you require highly accurate Auto-Cal timing, use external
Auto-Cal control where possible. The internal clock in the
Model 3000ZA is accurate to 2-3 %. Accordingly, internally
Teledyne Analytical Instruments
Universal AC power source.
and one exhaust out. Three inlets
when option "C" is ordered.
Serial digital concentration signal
output and control input.
sample gas input, internal valves
for automatic gas switching.
DC plus optional 4–20 mA DC
range ID.
3000ZA
6
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