Hi all, I wonder if anyone can help shed some light on symptoms Im seeing?
Ive been looking at fixing the volumetric dosing on the Carimali, having found some instructions on the internet on how to supposedly program the shot keys. My attempts at doing this had been unsuccessful, with a programmed key just delivering a continuous stream with no shutoff at any particular volume.
This led me to believe that the flowmeters may not be sending pulses (amongst many other possible causes) so I did some investigation and some gentle technical tapping in case the impellor was a little stuck. In the meantime the controller boxes had also been removed and replaced as part of other diagnoses.
The result of all this has been a change in behaviour: now if I program a key for a certain volume that key then becomes completely inoperative (delivers zero volume) when the machine is put back in to operation mode.
This at least tells me that the programming sequence does *something*, but Im now more puzzled about what could be wrong. If I was getting no pulses from the flowmeter (so the controller gets a pulse count of zero when the key is programmed) would that cause the behaviour Im seeing? Or would people expect that to result in continuous flow still as I saw before?
Just wondering if what Im now seeing eliminates the flowmeters (and connections etc) themselves from my investigations or not! If any people more knowledgable than myself on the specifics of these things can help Id be most appreciative.
Many thanks,
Dennis
Ive been looking at fixing the volumetric dosing on the Carimali, having found some instructions on the internet on how to supposedly program the shot keys. My attempts at doing this had been unsuccessful, with a programmed key just delivering a continuous stream with no shutoff at any particular volume.
This led me to believe that the flowmeters may not be sending pulses (amongst many other possible causes) so I did some investigation and some gentle technical tapping in case the impellor was a little stuck. In the meantime the controller boxes had also been removed and replaced as part of other diagnoses.
The result of all this has been a change in behaviour: now if I program a key for a certain volume that key then becomes completely inoperative (delivers zero volume) when the machine is put back in to operation mode.
This at least tells me that the programming sequence does *something*, but Im now more puzzled about what could be wrong. If I was getting no pulses from the flowmeter (so the controller gets a pulse count of zero when the key is programmed) would that cause the behaviour Im seeing? Or would people expect that to result in continuous flow still as I saw before?
Just wondering if what Im now seeing eliminates the flowmeters (and connections etc) themselves from my investigations or not! If any people more knowledgable than myself on the specifics of these things can help Id be most appreciative.
Many thanks,
Dennis

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