Service & Parts; Cell Replacement/Cleaning; Thermocouple Replacement - Ametek Thermox 2000 ATEX Series User Manual

SERVICE AND PARTS
The operations in this appendix should be performed only by
!
qualified service personnel with a knowledge of electrical safety
WARNING
techniques. There are no operator-serviceable components inside
the WDG system.
Never service the controller or sensor unless power has been
removed from the controller and sensor, and the sensor has been
allowed to cool for one hour.
Use only OEM replacement parts to ensure proper ATEX certifica-
tion for your analyzer.
NOTE
This chapter is divided into the following sections:

Cell Replacement/Cleaning

•
Furnace Thermocouple Replacement
•
Box Temperature RTD Replacement
•
Furnace Replacement
•
How-Wire Combustibles Detector Replacement (optional)
•
RCU (Remote Calibration Unit) Solenoid Valve Replacement
•
Replacement Parts List
•
See the Installation chapter for help on how to remove or replace Series
2000 control unit modules or option cards.
You can clean the outside of the sensor or controller (or Remote Calibra-
tion Unit) using normal household or commercial general purpose clean-
ers, cloths, or sponges. You can also use water. Always turn off power be-
fore attempting to clean the enclosure.
A wiring diagram for a standard sensor is provided in Figure 7-1. This
figure shows the locations of all wiring connections on the sensor. If your
sensor requires different wiring, this is provided in an appendix.