temperature, its related control circuit or its relay, the power to the heater cannot be reactivated
without powering down and restarting the analyzer.
Figure 1-11
Heater and RTD Tubes for the Modular Oven
1.8
Maintenance Considerations for Modular Ovens
The following practices must be observed in order to operate, maintain and prevent
compromise of the Maxum II Modular Oven heater system.
● The installation of the heater elements and RTDs should be inspected to verify that they
are fully inserted into the tubes as shown in the previous section. Heater wiring should be
inspected for any damage and proper connection to the PECM-DC.
● Application modules should be properly installed with their cover plates, and the face plate
of the modular oven should be installed and secured with the provided thumb screws.
● Because of the relatively low operating temperature, low power, and stable temperature
applications, the expected life of the heater elements is expected to be many years.
However, if a heater element burns out, replacement is possible.
Oven Types
1.8 Maintenance Considerations for Modular Ovens
Maxum II Valves and Oven Components
Service Manual, 10/2018, A5E42019844001
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