MODEL | SECTION 9.0 |
| MAINTENANCE |
SECTION 9.0
MAINTENANCE
9.1 ANALYZER (MODEL 54eA-01)
The Model
Clean the analyzer enclosure and front panel by wiping with a clean soft cloth dampened with water. A mild deter- gent solution can also be used. Do not use solvents, like alcohol, that might cause a buildup of static charge.
Table
TABLE 9-1. Replacement Parts
| PART NUMBER | DESCRIPTION |
|
| Enclosure, Front with Keyboard |
| |
| Power Supply Circuit Board Shield |
| |
| Half Shield, Power Supply |
| |
| PCB, CPU and power supply, calibrated, 115/230 Vac |
| |
| PCB, CPU and power supply, calibrated, 24 Vdc |
| |
| Hinge Pin |
| |
| Gasket, Front Panel |
| |
| Enclosure, Rear |
| |
| 9010377 |
| |
| 9510048 | Enclosure Conduit Plug, 1/2 inch |
|
9.2 OXYGEN SENSOR (MODEL 499ADO-54)
9.2.1 General
The oxygen sensor requires little maintenance. Generally, the sensor needs attention when the response be- comes sluggish or noisy or when readings drift following calibration.
9.2.2 Cleaning the membrane
Although the air blast cleaner does a good job of keeping the membrane clean, a thin film of slime can eventual- ly accumulate on the membrane. Slime can be removed by rinsing the membrane with clean water. A soft cloth or tissue can also be used to wipe the membrane.
9.2.3 Replacing electrolyte solution and membrane
To replace the membrane or fill solution, the sensor must first be removed from the air blast washer head assem- bly.
To remove the sensor from the air blast cleaner …
1.A pair of
2.Disconnect the air hose by pressing on the metal tab of the fitting and pulling the hose away from the base.
3.Unscrew the base from the sensor. DO NOT LOSE THE
50
