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Average:
• Number of pulsation cycles to average before determining that any of the alarm limits has been broken.
Recommended value from 3 to 5 cycles. The smaller the number of cycles the more sensitive a system is, the
larger the number of cycles the longer it will take to update an alarm status. Do not try to increase the number
of cycles to minimize the number of alarms. The correct strategy is to open the alarm limits, as described next,
to reduce the sensitivity of the system.
Pulses and Rate:
• This parameter sets the percentage of deviation allowed to differ between the pulses per minute (PPM) and
rate and ratio programmed for the pulsator and the real value measured. A value from 3% to 5% is suggested.
5.3.2.2 CONFIG > PHASES TAB
Phase A Minimum
• Minimum number of milliseconds expected for phase A (time to go from ambient pressure to vacuum level).
Suggested starting value from 50 to 80ms.
• Note:
If the system is detecting many code D alarms, consider DECREASING this value to have a better alarm
limit for the system.
• Depending on the length and size of the pulsation hose and liners the pulsator will require an expected
amount of time to pass from ambient pressure to vacuum level. This amount of time is always the same
because the size of hoses and liners is fixed. If suddenly, the time required to pass form ambient pressure to
vacuum level is smaller this may be the sign of a problem. For example, when a cow is stepping on a hose
completely obstructing the pass of vacuum to the liners. In this case, the phase A will shorten significantly and
will be captured by this limit generating the D code alarm.
Phase A maximum
• Maximum number of milliseconds expected for phase A (time to go from ambient pressure to vacuum level).
Suggested starting value from 90 to 120ms.
• Note:
If the system is detecting many code E alarms, consider INCREASING this value to have a better alarm
limit for the system.
• When the time to pass from ambient pressure to vacuum level on phase A takes too long, this may be a sign
that the pulsator piston is magnetized or sticking, taking longer for vacuum to get into the hoses. The problem
will be detected by this limit.
Phase C minimum
• Minimum number of milliseconds expected for phase C (time to go from vacuum level to ambient pressure).
Suggested starting value from 90 to 110ms.
• Note:
If the system is detecting many code D alarms, consider DECREASING this value to have a better alarm
limit for the system.
Phase C maximum:
•
Maximum number of milliseconds expected for phase C (time to go from vacuum level to ambient pressure).
Suggested starting value from 150 to 180ms.
• Note:
If the system is detecting many code E alarms, consider INCREASING this value to have a better alarm
limit for the system.
