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6 safety manual – JUMO 701150 14597 safetyM STB/STW - Safety Temperature Limiter and Safety Temperature Monitor Operating Manual User Manual

Page 57

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6 Safety Manual

57

2014-05-01

Relationship between the categories DC

avg

, MTTF

d

of each channel and PL

PL

Performance Level

1

MTTF

d

of each channel = low

2

MTTF

d

of each channel = medium

3

MTTF

d

of each channel = high