Teledyne 3000ZA2G - Zirconium oxide analyzer - Manual (Page 65)

Trace Oxygen Analyzer Maintenance
Teledyne Analytical Instruments 53
Maintenance
5.1 Routine Maintenance
Aside from normal cleaning and checking for leaks at the gas
connections, routine maintenance is limited to replacing fuses, and
recalibration. For recalibration, see Section 4.4 Calibration.
WARNING: SEE WARNINGS ON THE TITLE PAGE OF THIS
MANUAL.
5.2 Sensor Replacement
There are no user-serviceable parts in the sensor assembly. If the
sensor has failed, contact TAI for replacement.
CAUTION: POWER IS APPLIED TO THE INSTRUMENT
CIRCUITRY WHENEVER THE POWER ENTRY
SWITCH ON THE REAR PANEL IS IN THE ON
POSITION. THE RED SWITCH ON THE FRONT
PANEL IS FOR SWITCHING POWER ON OR OFF TO
THE DISPLAYS AND OUTPUTS ONLY.
CAUTION: THE SENSOR IS MAINTIANED AT A HIGH
TEMPERATURE. THE HOUSING AND INTERNAL
COMPONENTS WILL BE HOT! AFTER REMOVING
POWER. LET THE SENSOR AND HOUSING COOL
FOR TWO HOURS BEFORE DISASSEMBLING.