Just to add another spanner in the works.... There is the standard for "Electrical Equipment For Measurement, Control And Laboratory Use - EMC Requirements" titled EN61326-1 and dated 1997. I am not certain that this is official (i.e. published in the Official Journal) but this may be the product standard for "goop agitators".
Mark Briggs [email protected] >Good Day List, > >I am trying to determine what tests apply under the EMC >directive to a piece of chemistry lab equipment. The device >is a small table-top "agitator" to mix up containers of "goop". >(note my chemistry terminology is limited.) > >The device in question has a variable speed 24VDC motor >controlled by pulse width modulation. The PWM chopper >operates around 20 kHz. The device plugs into a wall >outlet (120VAC or 240VAC) There are no microprocessors, or >any digital electronics in the device. > >My experience has been in ITE testing, using the ITE emissions >standard and the Generic Immunity Standard. I expect the >Generic standards (emissions & immunity) would apply to the >"goop mixer". Does this sound correct? Does the Generic >emissions standard essentially boil down to EN 55022? > >I suspect this last question may be slightly controversial: >Assuming that EN 55022 applies, would this be a Class A or >Class B device? The device is sold only to educational / >research facilities, not the general public. > >Any opinions would be most appreciated. > >Thanks in advance, >Bob Sykes >
