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Well, my family's been farming
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for a
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long time.
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My grandfather farmed apricots and prunes in Santa Clara valley in the
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early nineteen hundreds, and my father has been in farming all of his life, and
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I grew up on a farm.
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At California Controlled Atmosphere we provide our customers with a high-quality
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refrigeration system. That refrigeration system allows our customers to get their
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fruit to the market at the highest quality level possible.
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My name is Doug Gerdts. I went to UC Davis and studied horticulture and post-harvest
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pomology, and while I was there I also took electives in computer programming
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and architecture.
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I started working in the industry in packing houses and quality control.
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You know trying to maintain quality for fruit and seeing what the potential is
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to do automation is was what interested me in doing what I'm doing.
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Cold storage allows us to pick the fruit at a high maturity. Getting that product
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cold quickly makes a huge difference in getting that quality product to the
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customer.
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So we're monitoring temperatures very close to the freezing temperature of the
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fruit.
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We're monitoring hummidity. In some cases we monitor oxygen, carbon dioxide.
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We also monitor for ammonia leaks. in the environment that we have
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we're both exposing the sensors to high levels of water and corrosive
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atmospheres.
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So, the temperature sensors and evaporator coils that we make have to
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stand up to those conditions.
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We just finished a project that is storing table grapes. They store for a
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number of months so we have to maintain a high level of accuracy when we're
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storing them. The installation included our control systems and evaporator coils
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and our system design. Each of the refrigeration zones has a number of
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control valves.
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They are remotely controled to our switch and light panels with the Opto 22
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hardware. With Opto 22 we've been able to
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maintain systems for a long period of time and keep them operating without
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having to change out the whole system.
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I've been able to integrate the SNAP system in with projects that we put
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together back in the early nineteen nineties. The iOS is very hardy. We're
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able to do most of our controls directly through the output modules without any
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interposing relays. With the the I/O racks we can have an individual power
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supply for each output module. Each output module is fused. the Groov allows
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us to have a number of operator panels that run off of the same screens. Each
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one. We don't have to build a new set of screens for each operator panel.
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when I grow up we were harvesting oranges and the crew was my family.
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It's actually been very good to come to CalCA and have that same feeling. We're
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a big family and everybody watches out for each other,
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makes sure everybody has the support we need.