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Banana Plugs (both red & black) DM3-08
Grommet (at vacuum input) DM3-14
Batteries (4 AA) DM3-19-01
Pipe fitting (1/8-27 NPT to 5/32) DM3-PIPE
Pipe fitting plug DM3-17-02
Pulsator fitting DM3-18
Computer cable 6’ DM3-COMPC6
Printer cable DM3-PCABLE
Dust cover 9-pin DM3-DUSTC
AC transformer DM3-ACTRANS
Digimet Printer DM3-PRINTER
Digimet Software Disk DM3-DISK
MISCELLANEOUS
Tapping Holes for vacuum test points
Tapping holes for pipe fitting DM2000-17-
01 (1/8-27 NPT fitting) can be
accomplished as follows:
A 1/8-27 NPT fitting requires a 11/32" tap
drill, then tap threads with a 1/8-27 NPT
tap. Pipe threads are tapered. This
usually requires a tapered reamer, which
is not necessary for thin, soft materials
such as plastic pipe. When tapping, do
not go too deep. It's easy to do so in thin
pipe walls.
Comparing Electronic and Pneumatic
Pulsation
Electronic and pneumatic pulsation
readings will differ because of the
following:
1) Since the electronic wave is a square
wave and the pneumatic wave is sloped,
the calculated ON/OFF ratios will differ to
a small degree.
Depending on where ON time (milk time)
is calculated on the pneumatic wave, for
example, the ratio will be affected. In the
Milk/Rest function, the user selects the
Liner Collapse Point, affecting the point on
the wave at which the ratio is calculated.
2) Pulsation-chamber vacuum does not
move as quickly as an electronic voltage
signal.
3) Condition of the liner and other rubber
goods may influence readings.
4) Finally, the pulsators may not be
operating properly due to air leaks, etc.
Cleaning
The DIGIMET 3000 can be externally
wiped clean with a damp cloth and mild
dishwashing soap. Tubes should be
periodically flushed with water to remove
milk residues.
Acrodisc filters are provided to protect
against the intrusion of milk onto the
transducer membrane. If milk is allowed
to enter the unit and to dry, performance
of the DIGIMET 3000 most likely will be
affected. If milk gets into the transducer
inlet, immediately rinse it out in the
following manner: Using a syringe, shoot
a small amount of rubbing alcohol,
GENTLY into the vacuum port.
IMPORTANT: DO NOT INSERT THE
NEEDLE FURTHER INTO THE PORT
THAN THE FACE OF THE UNIT (I.E.,
ONE SHOULD STILL BE ABLE TO SEE
THE NEEDLE POINT). DOING SO MAY
CAUSE DAMAGE TO THE
TRANSDUCER MEMBRANE. Let the
alcohol drain out. Rubbing alcohol is
preferable to water because water will
leave a residue plus, alcohol will
evaporate fairly quickly while water will
not.
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