Dairy Farmers & Dairy Service Technicians ...
Spend $1000's Replacing Faulty Electronics In Your Dairy ...
Until You've Read These Pages
pulsation control boards do an amazing job ...
after year ... with extreme reliability.
cause of problems is when the rectifier supplying voltage to the board,
often burns tracks off the board ... and this is
that most of your local techs can repair without much effort.
though ... it also cooks some of the switching
and diodes etc ... and even though the damage can
pretty nasty ... it’s usually fairly straight
repair and get back into service.
parts (bar one) are readily available ... so again
... virtually all faults on these boards can be
are still working on that one elusive part and expect to be able to
either source it eventually ... or if there is no
alternative ... create our own substitute to solve
you have any questions about these boards ... or if
have one to send in ... download and fill in a Repair
Form and send it in with the board.
anyone has a spare ... or any faulty ones lying
you no longer want ... we would be most interested
hearing from you.
EP Master Unit in it's case
Master Unit boards ... note the alternative 'factory fitted'
microcontroller device ... on top right hand corner
This is a fairly ancient system ... but there are still a
good number around.
can be kept going with a minimum of fuss, so if you are having trouble
with any ... please dont hesitate to contact us.
These photos show the control box and it's internals
... a disassembled module ... and a batch of
newly refurbished modules
Old technology, with relays and basic electronics ... but
still reliable if looked after.
5000 System ... ACR MP300's
These are probably the most widely used of the DeLaval automatic cup
removers that we see.
A fairly common problem is for moisture to get in between the layers of
the membrane switches and corrode the tracks.
Not much can be done with these switch panels other than replacement.
pcb's can generally be repaired, though ocassionally we see one where
the microcontroller IC has failed ... and so far we have
been unable to source any.
If anyone can help us with a supply
of these microcontroller IC's ... please contact us by
email or phone ... we will definitely make it worth your
!!! News Flash May 2010 !!!
to solve our micro supply problem ... we
can now repair 100%
of these boards
... unless they are physically badly
mangled or burnt.
if you have a batch that have failed for whatever reason ...
send them in for repair, and put them back into service.
great idea we learned from one of our customers ... is to
write the symptons of the fault (using a fine felt tipped pen), on the
white ribbon connector between the two boards.
It is easy to do, and you dont need to worry about losing bits of paper
or trying to remember what was wrong with each board.
The pcb's generally look aged and scruffy
... but that is mainly due to the insulation paint used on
them, which yellows with age.
It does an excellent job of keeping moisture at bay ...
just doesn't do anything for the appearance.
Point Controller ... Alpro MPCII
modules are only a few years old ... but are
beginning to come in for repair.
are a very sophisticated control panel, that can handle all the
functions at the milking point ...
automated take-off ... milk metering, etc
... as well as providing lots of feedback for the
with all other boards and panels found in dairies, external factors
like damaged wiring, faulty pulsators, rats and mice, moisture etc
... can cause malfunctions on these boards ...
well as the occasional unit that suffers a component failure..
you have any issues with these boards, please dont hesitate to contact
us or send one in for repair ... and as with all
... download and
fill in a Repair
Form and send it in with the board.
If you'd like to read more about the complete 'Alpro' system
... download this 14 page pdf
article which explains all it's features.
MPC II ... Milking Point Controller
... on rear
pcb ... front and rear view
DeLaval Alpro MPC with Corroded
Here's an Alpro MPC with corroded terminals on the rear. Water has got
in somewhere !!!
pin has corroded off and the others look a bit green.
dont look too bad, until you remove the sockets from the board
... and then you can see the damage that has been done.
seeps under the sockets and with current still flowing in the circuit,
sets up electrolysis. That rapidly corrodes and eats away the pins and
the copper tracks, causing all sorts of faults.
one requires a bit of 'reconstructive surgery"
starting to look a little better here ... ready to be
sealed ... and then have some new sockets fitted.
New sockets fitted
and a new lease on life ... ready for action again.