Dairy Tech Platinum Series, Руководство оператора

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[21]
Rev 4/15/14
Dairy Tech, Inc.
Service Manual: DT10G, DT30G &DT60G
6.
Milk will not cool
a. At the end of the heating and time-
out cycle, the cooling solenoid valve
should automatically open and
allow water to drain from the
machine.
i. Make certain the discharge drain
is not blocked, kinked or
obstructed with back pressure of
any kind
ii. Make certain the cold water
supply to the unit is always on
… it is common to find that
someone has shut the valve not
knowing its importance.
iii. Make certain that the user did
not initiate a “Heat Only” cycle
after which the unit does not
cool the milk automatically. Use
the “Full pasteurization cycles”
to make sure it goes through all
steps.
b. Check the cooling solenoid valve.
The thermocouple temperature must
be above 100F or above your cool
setting in the control for the cycle to
initiate.
i. During cooling with the #2 LED
on the control lit up, Is there
power to the solenoid valve? If
the power is on and the machine
has water but it will not flow,
replace the valve.
ii. No power to the valve: Check
the Circulation fuse (F1).
Replace if necessary and check
for power to the fuse from the
control through terminal 22 blue
wire. IF there is no 15vac power
from the control at terminal 22
but the #2 LED is lit then the
control may be damaged.
c. Check the water supply to make
sure screens and filters are free from
debris and kinks in the hoses.
7. Data Transfer Failure Message
a. IF the instrument cannot
successfully write to the USB data
stick, this message will appear when
trying to download data points.
b. Check that there is adequate disc
space on the memory stick.
c. This may also mean that the
maximum number of profiles in the
control has been exceeded.
8. Error Messages
a.
“Option Slot n Error” … indicates a
problem within the “n” module of