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Unit doesn't cycle in automatic mode, but cycles ok in manual mode.
In order for the pH system to cycle automatically, several conditions must be met: consistent
communication between the tablet PC and the V-Sense Controller, GPS signal received, positive EC
values, a minimum distance from previous sample, and adequate 12 volt power.
Positive EC
readings
Communication
between tablet
PC and V-Sense
controller
GPS or DGPS or RTK
Figure 10. Conditions for pH sampling to initiate
Single sample
can be taken any
time; automatic
sampling
requires a
minimum
distance
pH sampler must
be in up position
to initiate
sampling
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