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Single probe Double Layer Detection System for solar wafers (Solar sensors WF14x15AQ453S)

Single probe Double Layer Detection System for solar wafers (Solar sensors WF14x15AQ453S)
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Single probe Double Layer Detection System for solar wafers (Solar sensors WF14x15AQ453S) - 1

Double cell detection of crystalline solar cells Eddy current measurement principle For mounting in „Schmalz Wafer Gripper SWG“ Very fast reaction time – less than 20 ms Analogue output signal for connection to PLC 1 1 – Crystalline Solar cell 2 – Schmalz Wafer Gripper SWG 3 – Roland Sensor WF14x15AQ453S

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Single probe Double Layer Detection System for solar wafers (Solar sensors WF14x15AQ453S) - 2

For double layer detection of other thin metal layers please contact Roland Electronic GmbH in Keltern / Germany. LED Power green: Power is supplied Connector M8 Power / Signal Pin 1 → +24VDC supply voltage Pin 2 → Current output (4 - 20mA) Pin 3 → GND Pin 4 → Voltage output (2 – 10V) → brown → white → blue → black Important notes: Sensor WF14x15AQ453S is especially designed for the Schmalz Wafer Gripper SWG. This type of Gripper is ideal for the task of double cell detection. The following requirements are fulfilled: 1. No conductive material in the surrounding area of the sensors tube...

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Single probe Double Layer Detection System for solar wafers (Solar sensors WF14x15AQ453S) - 3

Voltage output vs number of cells (air gap 0.5mm) 10 cell type A [V] cell type B [V] cell type C [V] cell type D [V] cell type E [V] Note: cell type doesn’t mean a standardized classification. Cell type classifies the influence of thickness of silicon, back-surface field and busbars. This influence will cause different levels of output voltage. Important: Considering that the sensor output voltage depends on cell type a Teach-In Procedure for reliable measuring is essential. Voltage output vs air gap (Cell type B) 10

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Single probe Double Layer Detection System for solar wafers (Solar sensors WF14x15AQ453S) - 4

Current output vs number of cells (air gap 0.5mm) 20,0 18,0 cell type A [mA] cell type B [mA] cell type C [mA] cell type D [mA] cell type E [mA] Typical Specification Air gap range without limitations Absolute air gap maximum1 Air gap variation during measurement for …Air gap 0.0 mm …Air gap up to 1.0 mm …Air gap up to 1.4 mm less than -0.0 / +0.2mm less than +/- 0.2mm less than +/- 0.1mm Analogous signal latency Full scale Supply voltage: Supply current: Voltage output: Voltage output resistance: Current output: Current output resistance Temperature range: Conformity standards Air gaps...

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