Teledyne 3000TA - General purpose trace oxygen analyzer - Manual (Page 12)

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1 Introduction Model 3000TA
Teledyne Analytical Instruments
• 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.
Optional:
• Calibration Gas Ports Separate fittings for zero, span and
sample gas input, and internal valves for
automatically switching the gases.
Note: If you require highly accurate Auto-Cal timing, use external
Auto-Cal control where possible. The internal clock in the
Model 3000TA is accurate to 2-3 %. Accordingly, internally
scheduled calibrations can vary 2-3 % per day.