Cameron BARTON 764 - Section 1: Environmental and Storage; Design Basis Event (DBE) Environment; Storage Guidelines

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Section 1 Model 764 Differential Pressure Transmitter
DBE Environment ........................... Two 10-second temperature ramps to 486ºF maxi-
mum; 24 hour duration chemical spray exposure;
15 day total exposure to saturated steam at 250ºF
minimum
Long Term Severe Environment ..... 85 days at 200ºF and 95% RH
Seismic Qualications .................... OBE @ 9.0 G (series of 5)
SSE @ 12.5 G
5% critical damping
no resonance in frequencies below 75 Hz
Mechanical Aging ........................... 500,000 pressure cycles during accelerated aging;
Cycled electrically to induce stress during acceler-
ated aging;
Vibration cycling using 0.2 G sweeps over the 1-100
Hz range @ 1.0 octave/min.
Storage:
Storage per ANSI N45.2.2-1978 Level B @ 70ºF (20ºC) ±20ºF (±11ºC) in
factory-sealed package for 2.5 years maximum will not aect installed service
life.