Installation manual

May 2009 AfiFree Terminal 155i Installation Manual 73
Figure 39: DSW3—DIP Switch Options
Check the current wash cycle duration by chemical testing and milk sampling. If the
results are below standard, extend the wash cycle by increasing the Wash Duration
parameter value.
Testing AfiFree155i Performance
AfiFree155i milk meters must be tested before beginning normal operation. If
AfiFree155i milk meters have been installed as part of a system including antennas,
parlor controls etc., the following tests are performed as part of the system tests.
1. Check the power supply.
AfiFree155i milk meters will not operate at less than 21.6 VAC. Voltage in
excess of 26.4 VAC will cause damage to the AfiFree155i milk meters.
2. Check the vacuum supply.
The vacuum pressure must be between 36-38 kPa.
3. Check that the Wash Controller has been set up to local requirements.
4. To verify that there is vacuum at all the washing diaphragms, remove the vacuum
line connection to the AfiFree155 body and check vacuum.
5. Perform a washing cycle:
a. Verify that there are no leaks in the system.
b. Verify that the washing diaphragm opens and closes according to the timing
set.
c. Verify that the shut-off valves on the long milk tube operate.
d. Check that all AfiFree155 bodies are filled with water up to the tip of the
electrodes and that the inside of the cover is cleaned by the turbulence. If the
AfiFree155 bodies are not filled with water, reset the washing parameters
(see Wash Controller Configuration, page 71).
e. Verify that all AfiFree155 bodies are clean and are fully drained after the
washing cycle.
 If the AfiFree155 bodies are not clean reset the washing parameters as in
step d above.
 If the AfiFree155 bodies are not completely drained adjust the Time Off
parameter.