Shivvers Comp-u-Dry

COMP-U-DRY is a unique computer control for SHIVVERS grain dryers and can be used with many other dryers as well. Simply enter the desired grain moisture into the computer, it then adjusts the equipment to dry and transfer grain, closely maintaining that moisture. COMP-U-DRY automatically checks the moisture and controls the dryer. The deluxe version has a printout which provides details of each moisture test and adjustments made.

The computer is enclosed in a galvanised weather-tight box with magnetically sealed see-through door. The operating program is permanently stored in the computer chips so it cannot be destroyed by loss of power or by wrong program information being entered. In addition, built-in error diagnostics help to detect computer problems if they occur.

COMP-U-DRY’S computer, designed by SHIVVERS, uses the 6502 Microprocessor to take the guesswork out of grain drying, automatically adjusts the drying system and closely maintains desired grain moisture.

COM P-U-DRY in combination with the 6502 Microprocessor uses a live memory data storage chip that retains all the current data in case of a power failure or disconnect of any type.

Any restart of the G-2 COMP-U-DRY requires only 3 entries; (1) Time, (2) Date, (3) Verification that the meter calibration is correct. During the drying operation all of the operating parameters are printed out 4 times each day. They are as follows: (1) Date, (2) Time, (3) Lot Number, (4) Dry To, (5) Meter Calibration, (6) Readings to Average, (7) Maximum temperature, (8) Operating point.

Large changes in the incoming moisture or weather do not affect the accuracy of the COMP-U-DRY. The actual moisture of the dried grain is checked. The moisture is not calculated for dryness by use of temperature.

COMP-U-DRY automatically samples grain being transferred, checking the moisture content every five minutes. Should wet grain be encountered, the unit stops the transfer equipment, calculates the additional drying time needed and waits that time (ten minutes to one hour, no manual settings required), then re-starts the transfer equipment and sampling process automatically. Transfer equipment remains off during the preliminary and “wetter than desired” sampling periods. This prevents the unnecessary transfer of high moisture samples into storage.

COM P-U-DRY, by use of the 6502 Microprocessor, averages several tests to give a more realistic reading. The automatic sampling plate checks the moisture ten times, 3 seconds apart, and averages them to give the most accurate reading possible. Dryer control is based on the average (2 to 9) of these readings

More samples in the average allows compensation for uneven drying conditions in the bin created by the fan and heater or floor support arrangement

Lesser samples in the average allow for accurate control of critical grains The COMP-U-DRY automatically uses 4 samples in the control average if special conditions do not need to be compensated for.

COMP-U-DRY DELUXE has also built-in control of plenum temperature and printout of the drying process figures.

COMP-U-DRY, in response to its moisture tests, closely maintains the entered moisture level by automatically increasing or decreasing the drying temperature and automatically starting and stopping the transfer equipment.

COMP-U-DRY constantly monitors drying air temperature and grain moisture, raising or lowering the temperature as required. As a result the output of the drying equipment is increased. It is possible to increase capacity as much as 25% in some cases.

COMP-U-DRY deluxe maintains the highest possible drying temperature (up to the temperature initially entered on the computer or a maximum of 180 degrees) without over-drying the grain. Hotter air can absorb more moisture before becoming saturated; therefore, the higher the temperature of air moving through the grain, the greater the capacity of the air to carry moisture out of the bin. Using the efficient higher temperature not only lowers the cost of drying; it also increases the capacity of the equipment.

COMP-U-DRY deluxe, in response to its moisture test, raises and lowers the drying temperature to maintain the lowest possible fuel use when high temperature is not required. COMP-U-DRY automatically lowers the drying temperature to prevent costly over-drying. When higher temperatures are again needed the COM P-U-DRY deluxe automatically increases the temperature as required.

A new wider, easy to service swing-out printer has automatic paper rewind.

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