FIELD COUPLING TESTER USER INSTRUCTIONS - Digi-Key
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1. 4 QUANTU ARCH GROUP Document E8141_ Issue FIELD COUPLING TESTER USER INSTRUCTIONS Notes and issue History Note that the E3A User Manual can be used as a reference document but E8141 summarises the modification and operation as a Field Coupling Tester Document Description Document number FIELD COUPLING TESTER USER INSTRUCTIONS Issue _ Change Drawn Date Checked Initial REN 16 May Release Keith Britton 2007 Filename E8141_Field Coupling Tester User Instructions Issue 1 doc Copyright 2007 QRG Ltd Page 1 of 6 QUANTUM Document E8141_Issue RESEARCH GROUP 1 The main components of the Field Coupling Tester are Field Coupling Tester components MODIFIED E3A EVALUATION 9V BATTERY BOARD TENRA TE o BATTERY 0 MERCURY amp CADMIUM S m i z OC ALE j uel PN NAN AGG a a Er e TTET err Tore C6 DEVICE R12 MODE SELECT egy w P e a0 QTS T QTS PASSIVE ACTIVE 4 rs v a el i ja i A A x VOWER UPPER GND GND CALIBRATION wN 1 AUANTUM EL t uf i t REMOTE SENSOR ASSEMBLY Filename E8141_Field Coupling Tester Page 2 of 6 User Instructions Issue 1 doc Copyright 2007 QRG Ltd QUANTUM Document E8141_Issue RESEARCH GROUP 2 The E3A board is modified by cutting through the centre of the PCB Sensor Pad and connecting one half to PCB Ground E3A Modification aa i2. a eet OR hs ge Es ee al ty eis pt ES E 3 The Remote Sensor Assembly is a simple PCB 7537 with a split electrode similar to the modified PCB sensor pad shielded cable and connector to plug into P2 on the modified E3A board Remote Sensor Connection Detail NOTE When the Remote Sensor is used the non copper side is the sensing surface Filename E8141_Field Coupling Tester Page 3 of 6 User Instructions Issue 1 doc Copyright 2007 QRG Ltd QUANTUM Document E8141 Issue A RCH 4 When the Remote Sensor Assembly is connected slide SENSOR SELECT towards P2 When the PCB Sensor is used slide SENSOR SELECT away from P2 5 Calibration of Field Coupling Tester a Ensure that QT300 IC is installed at U1 DEVICE is set to QT300 MODE is set to ACTIVE E feo a Tiegh Lal ss aaa QT3S 1 QTI stove ACTIVE Qo S ie a A A pEb UPPER CALIBRATION b Connect 9V Battery to B1 and switch on S1 c Keep everything clear of PCB Sensor area Press and release LOWER calibration button SENSOR sriccT 3 vs 4 a Aw gt 2 N GND Filename E8141_Field Coupling Tester Page 4 of 6 User Instructions Issue 1 doc Copyright 2007 QRG Ltd QUANTUM Document E8141_Issue RESEARCH GROUP d Place metal object eg Coin centrally on the Sensor area Press and release UPPER calibration button ae O my OC lin
3. ON Effect of conductive material P SENSOR S CT ESSE O a QT391 QATIOO PASSIVE ws D i _ a a Y ua if D gt fn A A rs GND cnn SS n A K A LOWER CALIBRATION Filename E8141_Field Coupling Tester User Instructions Issue 1 doc END OF DOCUMENT Copyright 2007 QRG Ltd SUPER aper with graphite pencil mar Page 6 of 6
4. tels 3 op 5 R12 MoD a a ira te Taw i QT3 1 QT3 PASSIVE ACTIV o QUANTUM e Calibration when using the Remote Sensor Assembly is the same procedure as above Ensure SENSOR SELECT is in the correct position 6 Once calibrated the ability for any object material to couple field to ground can be assessed and compared Place the object centrally on the sensing area and observe the Delta Signal Bargraph Counts or on the LCD display Typically the lower the Delta Signal the better the object of material is when used as a sensor surface for QRG Ltd s products When using the Remote Sensor Assembly ensure that the sensing area is in fully contact with the material being evaluated and ensure that a reference reading is also taken without the material present e g Measure Material Delta signal Compare with Delta signal obtained here Filename E8141_Field Coupling Tester Page 5 of 6 User Instructions Issue 1 doc Copyright 2007 QRG Ltd QUANTO GROUP Examples Acrylic cover Low Delta Signal Excellent material for Quantum Research Group s products eee ee tee ein B WARN E a nn aa Ae Maman ate oe Se ee Tae a t if A AA a Lower uprer AWA AHHH eee AWA 16 j3 Document E8141_Issue1 Paper on sensor One 3 J i i T301 QTS S PASSIVE ACTIVE ame i Te W A A WER UPPER CALIBRATI
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