I Overview; Using Your Guardian Recording Thermometer - Anderson The Guardian III Manuel De L'opérateur

I Overview

The Guardian is a circular chart recording thermometer specifically designed for dairy farm milking,
cooling, storage, and cleaning applications. It provides an "around the clock" record of critical
temperatures in the bulk tank, and in the milk line or COP sink. You can use this information to adjust
or troubleshoot your cooling, storage, and cleaning systems. Optimally cooled milk and clean tanks and
lines mean that your bacteria counts will diminish while you protect or even increase your profits.
II

Using Your Guardian Recording Thermometer

Your new Guardian will have one (red) pen, dedicated to bulk tank temperature, and a second (black)
pen. This second pen is used to monitor the temperature in the fill line during milking and cleaning.
The chart is designed to rotate once every 24, 48, 72 hours, or 7 days, depending on normal pick-up
schedule. The shaded green band on the chart shows the quality range for milk once it has been cooled.
If the red line is outside the green quality band after the normal cooling time, you can assess your system
and take corrective action.
A "spiked" red line on the chart shows the tank has been cleaned and indicates the time and temperature
of the cleaning cycle. A digital display indicates the temperature at all times, will cycle between pen
one and two temperatures once every three seconds.
Finally, all models are equipped with alarm relays that can be used for signaling problems. These
relays can be wired by your installer to an external light, horn, or auto-dialer to alert you of an over-
temperature condition so you can remedy it before it becomes critical.
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Anderson Guardian