标题: DSH 406 The adequacy of the knob/shaft mechanical link [打印本页] 作者: 小米 时间: 2012-11-5 11:40 标题: DSH 406 The adequacy of the knob/shaft mechanical link
The adequacy of the knob/shaft mechanical link 4 M! `% s# U1 \$ l" I# I
56.10 b) ' W+ g- v! P% P0 ]1 z, b
60601-1(ed.2);am1;am2 \% O( a G5 s! S3 d7 }
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Standard(s)- (year and edition):$ d/ Y" ~/ {! |, T) a
IEC 60601-1:1988 Ed.2 Am1+Am2% i- d, I" h$ x, V( J
Sub clause(s): 56.10 b)1 O- t/ a5 v1 m2 H+ n$ G* m
Sheet n°: DSH-406 % s* W$ \0 c9 `6 m; W) M% M& o& uSubject: The adequacy of the knob/shaft mechanical link % X" \7 U& I( W" P6 D, U6 i9 PKey words: Knob, torque- L+ u7 S, v- y; h
Confirmed by CTL at its 39th meeting, in Cologne$ _# s5 M/ H+ t9 v2 Z6 x# P6 r& O
Question: " G7 j! N- {% ?* p5 I+ x1 \* B2 Pa) The criteria is that the knob shall not rotate with respect to the shaft. This does not cover the* g3 m# K( k p( k# b
possibility of internal damage to the controlling device e.g. potentiometer.1 O9 C" T. K- d6 H/ e
b) The torque test values are too high. Maximum torque on a 10mm diameter knob was found) U/ M: j3 R" `% l) N
to be <0.5Nm. 4 S1 Q; o' f" z# r- r T( DDecision: ! k8 Y( f% a2 z7 ]" F p/ X) p! }The torque test values in Table XIII are not excessive. This table could be re-examined in the& j, V6 N' G( T( d
3rd edition of IEC 60601-1.5 I) E! C9 O$ v9 O4 Y
' i; g8 K; a0 d2 Q6 H+ Q9 g[attach]77102[/attach]! ]; G8 d' T/ M" G
DSH 406