|
|
|  DSH 406
4 k! `, ~# D3 J: W! p( e- z4 w% l" N4 W. H. e
| The adequacy of the knob/shaft mechanical link* z3 R6 s, V4 }& F
| 56.10 b)& i' @9 v: B/ Y( S/ C! P
| 60601-1(ed.2);am1;am2* g! p( f* x1 q2 v2 W
|
6 ?- x+ d6 s& ]1 ]# R, E4 `Standard(s)- (year and edition):; }: x, R- j; a8 ]
IEC 60601-1:1988 Ed.2 Am1+Am2( G: I1 g2 G' s, ~
Sub clause(s): 56.10 b)
( W, z4 w7 C$ t& m CSheet n°: DSH-406; [$ Q$ S, m) m, p: o
Subject: The adequacy of the knob/shaft mechanical link# m2 l0 [4 c- M7 p8 Z3 G
Key words: Knob, torque2 k* U( F8 ~+ F9 y2 f" h2 O! z/ N
Confirmed by CTL at its 39th meeting, in Cologne
% n4 [+ X: y+ w: wQuestion:
5 h( x7 s& N/ ` V; C5 R% u- Ha) The criteria is that the knob shall not rotate with respect to the shaft. This does not cover the
8 v- U* H5 E9 w* X, z s0 Bpossibility of internal damage to the controlling device e.g. potentiometer.
. V7 c! k% ?4 C7 v4 Xb) The torque test values are too high. Maximum torque on a 10mm diameter knob was found; P" B0 \+ w" J' q
to be <0.5Nm.
; ~3 N. O$ N, x+ DDecision:2 C8 |3 E* C" V
The torque test values in Table XIII are not excessive. This table could be re-examined in the
( X K9 M+ D0 `2 e/ T8 \' C3rd edition of IEC 60601-1.' q( e0 ?7 Y \( c2 t
+ g% v2 z5 _9 q4 t5 x
- v0 i" D5 T2 e7 X |
本帖子中包含更多资源
您需要 登录 才可以下载或查看，没有帐号？注册安规
x
|
/2 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2012-11-5 11:40
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡