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Parameter
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Type
|
Description
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|---|---|---|
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Base Failure Rate
|
Real (Failures/Million Hours)
|
The base or manufacturer-supplied failure rate. Generally, this field is left at #.# so that the failure rate is calculated based on the values entered for other parameters. If you enter a value for this parameter, this value is used in place of a calculated failure rate.
|
|
Maximum Strain %
|
Real Used in Cp and Cac calculations
|
The maximum strain percentage for the diaphragm, which is generally between 0 to 800. For more information, see the Handbook of Reliability Prediction Procedures for Mechanical Equipment.
|
|
Ozone %
|
Choice List. Used in Cac calculation
|
The percentage of ozone in the atmosphere.
|
|
Anti-Ozonant Coating
|
Choice List. Used in Cac calculation
|
Indicates whether a chemical anti-ozonant coating is used on the surface of the diaphragm to reduce crack growth. Choices are:
• Yes
• No
|
|
Liquid Contam Factor
|
Real Used in Clc calculation
|
The liquid contaminant multiplier factor. A nominal value is 1.0. For more information, see the Handbook of Reliability Prediction Procedures for Mechanical Equipment.
|
|
Temperature Rise
|
Real (Degrees C). Used in Ct calculation
|
The temperature rise from the ambient subassembly temperature to this component. The temperature rise plus the ambient temperature is equal to the operating temperature of the device.
|
|
[Derating Parameters]
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For more information, see Derating Parameters.
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