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14_Bag Filling Machine using Load Cell Input


Our customer manufactures machines for loading produce into bags at preset weights. A conveyor carries the produce to the bag. The conveyor speed controller slows the conveyor when the bag nears the required weight. The bag is hung from a load cell which feeds the weight to the Tiger 320 meter controller. When the bag is near the required weight, a setpoint in the meter slows the conveyor. When the bag reaches the required weight, the meter automatically compensates for produce inertia and determines when to stop the conveyor and close the conveyor feed gate. The display flashes between "BAGFUL" and "WEIGHT". The operator unclamps the bag, and the meter counts and totalizes the bag number from the bag clamp microswitch pulse. The operator fits a new bag and the clamp closes after a 1 second delay to stabalize the load cell.

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19_Fruit Weighing Application


Our customer operates a fruit packhouse. His customers deliver their fruit in large bins for grading, packing and distribution. The full bins are loaded onto a conveyer and then transferred to a load cell weighing platform. The bin raises to a weigh position and then stops. After a 1 second delay (load cell to stabilize) the full bin is weighed. The bin then raises and tips the produce onto a second grading conveyer. The bin then returns to the load cell weigh position and stops. After a 1 second delay the empty bin is weighed.

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21_Cut to Length Controller


Our customer operates an automatic cut-to-length guillotine. A Texmate 320 Series programmable meter controller has been installed and programmed to measure length from an encoder input. Setpoint 1 is programmed to operate at the required cut-off length. A clutch and a clamp operate to stop the metal feed motor.

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22_Weigh and Ratio Batching Application


Our customer requires varying amounts of primary and secondary chemicals to be mixed by ratio. To improve mixing, accuracy and save time, the ratio calculation is automatically performed by a macro. A container is placed on a weighing platform and the platform is tared to 0. The primary product is poured into the container. The operator enters the required mix ratio and presses the start button.

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25_Can Label Glue Application Machine


Our customer manufactures machines for applying labels to cans. They require a controller to control the temperature of the glue and glue roller. The controller also needs to control the length of time the feed mechanism operates to feed the label over the glue roller and spin the can to apply the label. Texmate installed a Tiger 320 Series DI-503 3-display programmable meter controller (PMC). Two thermocouple inputs control the temperature of the glue and the glue roller and inhibit the machine so that it will not operate unless the glue temperature is within set limits. A timer controls the clutch, which controls the label feed and can spin time. The timer is configured for 0.001 seconds resolution and is easily adjustable by the operator.

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28_Gas Cylinder Filling System


Our customer operates a gas dispenser that fills gas cylinders of unknown volume and calculates the cost in dollars. The meter automates the control process through a macro. In the diagram below, both valves 1 and 2 are CLOSED at the beginning of the process (the default position). When the hose connects to the gas cylinder, the safety switch triggers the macro. Valve 1 OPENS, pressurizing the small reference cylinder of known capacity, and the meter stores the pressure data measured from the pressure transducer.

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34_Single Phase Measurement and Control


It is no longer necessary to use combinations of transducers to achieve a power measurement and control system. A Texmate Tiger 320 Series DI-503 meter, installed with a single-phase power input module, calculates and displays volts, amps, Hz, watts, watt hours, and power factor from a single-phase 2 or 3-wire voltage and current input.

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36_Smart Rain Monitor and Irrigation Controller


Outdoor growers in intermittent or low rainfall areas require irrigation controllers. The controller input is usually from a tipping bucket rain gauge or a flow sensor. Control requirements: If more than X amount of rain falls within a programmed time, the irrigation cycle is interrupted. If Y amount more rain falls within the programmed Off-time, the irrigation cycle is interrupted for a longer time.

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37_Filling Application using Load Cell Input


**Avoid costly motor and speed controllers for filling applications by using precise digital setpoint tracking.** The combination of a DI-60A programmable meter controller fitted with a smart load cell input module does just this, delivering accurate and reliable digital process control. The container is placed under the tank outlet. The start button is pressed, the display is reset to zero (Tared), the valve opens and the motor starts running until setpoint 1 is reached. The motor switches off and before the motor and pump stop completely (due to the motor inertia), the fill weight is reached and setpoint 2 is then deactivated at the fill weight and the valve closes.

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38_Dual Tank Level Annunciator Controller


A bakery customer has two tanks containing a release agent that is sprayed into the baking trays. If the release agent runs out, the bread sticks to the trays. Two release agent drums, TANK 1 and TANK 2 are placed onto two independent load-cell platforms and both load cell outputs are connected to a dual load-cell input module installed in a DI-60AT controller. 1. On start up, TANK 1 valve is open. 2. When TANK 1 low level (set-point 1) operates, TANK 1 valve closes and TANK 2 valve opens. 3. The system is now operating from TANK 2. 4. TANK 1 is replaced, TANK 1 low level alarm is now OFF. 5. When TANK 2 low level alarm operates, TANK 2 valve is closed and TANK 1 valve is opened. 6. The sequence is repeated.

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40_Heat Exchanger with Heating / Cooling Cycle Control


Our customer requires an energy efficient method of gently heating and cooling viscous solutions to assist the mixing process in the food and cosmetic industries.

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43_Test Rigs for Quality Control Applications


As a programmable meter controller (PMC), the Tiger 320 Series is adaptable to one-off final assembly and quality control test jigs. The modular design of the PMC and the vast choice of input signal conditioning modules, allows production engineers to overcome many quality control challenges.

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48_Dual Load Cell Pinch Roll Feeder


Our customer has a feed roller system. They require to monitor and maintain a constant pressure between the two ends of the bottom roller to maintain a straight feed. The bearings at each end of the bottom roller are mounted on a separate load cell. The output from each load cell is connected directly into a Tiger 320 Series controller.

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49_Bubbler System Level Measurement


Bubbler systems are ideal for level measurement of open channel run off systems or duct and tank situations where debris, foam, steam, or surface turbulance makes standard methods of level measurement impractical.

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52_Bubbler System Flow Measurement


Bubbler systems are ideal for flow measurement of open channel run off systems or duct situations where debris, foam, steam, or surface turbulence makes standard methods of flow measurement impractical. Most bubbler systems require an independent pressure transmitter, a display, and a control system. Texmate have combined their new

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55_Wet and Dry Bulb Humidity Measurement and Control


Wet and dry bulb humidity measurement, using two temperature sensor probes, is perhaps the most reliable method of accurately calculating humidity for low temperature applications in industry today. Both sensors are mounted close together, with one designated the dry bulb sensor and the other the wet bulb sensor. The wet bulb is kept wet using a moistened cotton wick. The wet bulb is cooled relative to the dry bulb by heat loss due to moisture evaporation from the wet bulb wick. The rate of evaporation is dependent on the ambient temperature and humidity.

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57_Manual / Auto Station


In many industrial applications it is necessary to be able to control a device manually. Often a potentiometer or rotary switch is used, but this method can be too coarse and not easily repeatable. Texmate have developed a versatile and easy-to-use selection of manual stations, using their Tiger 320 Series controller, that produce an accurate, digitally controlled and scaled 4 to 20 mA or 0 to 10 V output.

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58_Frostmate Frost Risk Management System


Frostmate is an integrated frost risk management system that reduces the risk of frost damage to an orchardist's crop. A sophisticated control and monitoring system constantly monitors the orchard environment combining both temperature and humidity to deliver a reliable prediction of frost conditions. When frost damage is imminent, the Frostmate automatically initiates the timely delivery of water spray to the area at risk, raising the humidity level. Water delivery is maintained in a continuous cycle to the affected zones until the frost conditions have abated, ensuring better crop protection and conserving resources such as water and power.

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