Teledyne 3000ZA operating instructions Cleaning, Troubleshooting

Maintenance 3000ZA

•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	Analyzer may have	1. Turn analyzer off,
oxygen concentration	been calibrated in an	then back on again.
as reported by the	inaccurate fashion.	Press System key
analyzer		when prompted by
		analyzer “Press
		System for Default
		Values”. This will
		return the default
		settings to the

Teledyne Analytical Instruments 56