Brian, 

 

My opinion is that the Machinery Directive does not strictly require "an
AC Lock Out Device, an Emergency Stop Switch, and a Light Tower" per se.
Have you read the directive and guidance on these points and believe
that it does?

Just because 61010-1 is not harmonized to the MD does not preclude the
possibility that it addresses all relevant MD essential requirements for
your product. 

 

Regards,

Lauren Crane

KLA-Tencor

 

From: Kunde, Brian [mailto:[email protected]] 
Sent: Friday, June 01, 2012 3:28 PM
To: [email protected]
Subject: [PSES] Laboratory Equipment - the forgotten child

 

More trouble in the world of Laboratory Equipment (red headed step
child) and the Machinery Directive. 

 

I've had TUV offices in 3 Asian countries and a customer in Australia
tell us our products (Laboratory Equipment) must have an AC Lock Out
Device, an Emergency Stop Switch, and a Light Tower because "Laboratory
Equipment now falls under the Machinery Directive". 

 

They are telling us that any AC product requires a lock out device.
What?

 

On one instrument we make, the only moving part is a small dc motor with
a wire brush similar to an electric tooth brush that cleans an
electrical contact between analysis. You can stop this motor by hand
without injury. This motor is also behind a double interlock door (due
to an electrical hazard), but yet they say we must have an E-Stop switch
and Light Tower. 

 

I'm not familiar with the Light Towers. I've seen them on Large
Production Machines but what purpose do they serve on laboratory
equipment no larger that an upright piano? I understood they are only
required to show the operational status of a machine if not knowing the
status could cause a hazard or injury. Is there more to it? I don't see
why it would be needed if there are no accessible hazards. 

 

I'm getting the feeling that some believe these things are required just
because laboratory falls under the machinery directive and not for any
other reason, which seems silly to me. In the past, the machinery
directive mainly covered the safety of Production Machines which
generally require these safety components. 

 

Can you imagine your next spectrum analyzer having an E-Stop switch
because of the cooling fan or the motorized CD drive door? Is this what
it is coming to?

 

Why or why don't you large powerful laboratory equipment manufacturers
fight for the official recognition of "Laboratory Equipment" and have
our own Directives, Standards, and requirements and not have to wade
through all the machinery Directive nonsense?  What sense is the IEC/EN
61010-1 standard if they are not harmonized to the MD? Why are we being
forced to apply the IEC/EN 60204-1 to Laboratory Equipment where 90% of
the requirements don't or shouldn't apply? 

 

Sorry for my rant. It's been a long week. I'm just a small powerless
voice trying to sell safe products to a crazy crazy world..

 

The Other Brian

 

________________________________


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this by mistake, please destroy it and notify us of the error. Thank
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