Teledyne 3000TA-XLEU - Trace oxygen analyzer - Manual (Page 90)

Maintenance 3000TA-XL-EU
Teledyne Analytical Instruments 74
The spare cell should be carefully stored in an area that is not
subject to large variations in ambient temperature (75°F nominal) or to
rough handling.
WARNING: The sensors used in the model 3000TA-XL-EU Trace
Oxygen Analyzer uses electrolytes which contain
toxic substances, mainly lead and potassium
hydroxide, that can be harmful if touched, swallowed,
or inhaled. Avoid contact with any fluid or powder in
or around the unit. What may appear to be plain water
could contain one of these toxic substances. In case
of eye contact, immediately flush eyes with water for
at least 15 minutes. Call physician. Refer to the MSDS
Sheet accompanying this manual.
CAUTION: DO NOT DISTURB THE INTEGRITY OF THE CELL
PACKAGE USED IN SHIPPING THE B-2CXL MICRO-
FUEL CELL UNTIL THE CELL IS TO ACTUALLY BE
USED. IF THE CELL PACKAGE IS PUNCTURED AND
AIR IS PERMITTED TO ENTER, THIS TYPE OF CELL
WILL REQUIRE AN EXCESSIVELY LONG TIME TO
REACH ZERO AFTER INSTALLATION (1-2 WEEKS!).
6.2.2 When to Replace a Cell
Cell failure in the 3000TA-XL-EU is usually characterized by a
significant increase in the zero offset of more than 1.0 ppm oxygen or
the inability to calibrate the sensor. When this occurs, the 3000TA-XL-
EU will still zero but the system alarm trips, and the LCD displays a
failure message.
#.# ppm Anlz
CELL FAIL/ ZERO HIGH
Before replacing the cell:
1. Check your span gas to make sure it is within specifications.
2. Check for leaks upstream from the cell, where oxygen may
be leaking into the system.
If there are no leaks and the span gas is within specification,
replace the cell.