DigiVac SNAP Manuel opérationnel - Page 13

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My readings are erratic

My SNAP is really noisy

My Snap can't seem to run wild swinging

all over the place, and can't seem to hit a

set point.

My Snap seems to be "breathing"

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Check reading with another gauge to see

if the readings are indeed erratic. If the

other gauge does not show erratic

readings, consult your vendor.

The valves might make a whiny or

buzzing sound at startup. This is normal.

Adjust PID variables, probably reduce

variable "P"

The base pressure of the pump is probably

high as well. This can be solved by resetting

the PID. If SNAP is controlling too

aggressively, try setting P=p/2. Want to learn

more see our white paper on PID