Maintenance 3000ZA
Teledyne Analytical Instruments 56
• Analysis Section
• Zirconium oxide sensor
• Cell block
• Sample system
• Power Supply
• Microprocessor
• Displays
• 5 digit LED meter
• 2 line, 20 character, alphanumeric, VFD display
• RS-232 Communications Port
See the drawings in the Drawings section in back of this manual for
details.
5.6 Cleaning
If instrument is unmounted at time of cleaning, disconnect the
instrument from the power source. Close and latch the front-panel access
door. Clean outside surfaces with a soft cloth dampened slightly with plain
clean water. Do not use any harsh solvents such as paint thinner or benzene.
For panel-mounted instruments, clean the front panel as prescribed
in the above paragraph. DO NOT wipe front panel while the instrument
is controlling your process.
5.7 Troubleshooting
Table 5-2: Troubleshooting
Problem
Possible Cause
Solution
Erratic readings of the
oxygen concentration
as reported by the
analyzer
Analyzer may have
been calibrated in an
inaccurate fashion.
1. Turn analyzer off,
then back on again.
Press System key
when prompted by
analyzer “Press
System for Default
Values”. This will
return the default
settings to the
analyzer.