How to make test boxes: break out box, 4-20 ma simulator, and transducer tester
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Transcript of How to make test boxes: break out box, 4-20 ma simulator, and transducer tester
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How to Make: Break Out Box, 4-20 ma Simulator and Pressure Transducer Tester.
David Aakre Technologist
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Test Boxes to Build
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BREAK OUT BOX
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ATTACH YOUR CABLE CONECTORS TO BOX
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SOLDER TEST POINTS TO CONNECTOR. USE DIGITAL METER WITH TEST BOX TO MEASURE VOLTAGE,FREQUENCY, CURRENT AND SIMULATE 4-20 MA AND
FREQUENCY. TROUBLE SHOOTING JUST BECAME EASY.
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4-20 Ma Simulator
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4-20 Ma Simulator Diagram
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SOLDER COMPONETS TOGETHER. LIGHT SWITCH IS INSTALLED TO SHOW POWER. YOU CAN BUILD WITHOUT SWITCH AND LIGHT. TEST POINTS ARE AN OPTION AS WELL. YOU WILL NEED A DIGITAL
METER SET ON DC MA CURRENT IN TEST POINTS TO MAKE THIS OPTION WORK. WITH THIS OPTION YOU WILL SEE THE 4-20 CURRENT AS YOU MOVE RESISTOR.
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4-20 MA SIMULATOR WITH METER READING DC MILLIAMP CURRENT.
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TRANSDUCER TESTER
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You will need to know pin out on transducer. PIN A and D are calibration loop.
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9 Volt battery is used to go through calibration loop on Pin A and D. Switch toggled will give transducer 20 ma calibration number on
Digital meter in DC current reading such as 19.8 milliamps.
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Write Calibration numbers on Transducers such as 3.9 ma and 19.9 ma.
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DAVID AAKRETECHNOLOGIST
Have fun building your test boxes.