... | ... | @@ -43,7 +43,7 @@ Design |
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- sglux [SiC UV TOCONs / Broadband UV
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sensor](https://sglux.de/en/product-category/sic-uv-tocons/broadband-tocons/)
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- [TOCON\_ABC5](https://sglux.de/en/product/tocon_abc5-en/)
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- [TOCON\_ABC4](https://sglux.de/en/product/tocon_abc4-en/)
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- Gives 0-5V output
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- "Scatter" (tolerance) of ±20%. Should be able to calibrate this
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out.
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... | ... | @@ -51,6 +51,22 @@ Design |
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TOCON scatter?*
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- Lower and higher sensitive sensors exist
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##### Calculation of required sensitivity and sensor
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- 1 MED/hr = 5.8 µW/cm² (from [Units](/uv-meters#units))
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- Full display 199 mMED/hr = 0.199 MED/hr = 1,1542 µW/cm² = 1.999 V
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- 5V TOCON should have max. irradiance at 5/1.999 \* 1.1542 = 2.89
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µW/cm²
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- [TOCON\_ABC3](https://sglux.de/en/product/tocon_abc3-en/)
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max. irradiance (saturation limit) at 290 nm (peak
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wavelength) is approx. 1.8 µW/cm2
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Not sensitive enough.
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- [TOCON\_ABC4](https://sglux.de/en/product/tocon_abc4-en/)
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max. irradiance (saturation limit) at 290 nm (peak
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wavelength) is approx. 18 µW/cm2
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Need attenuation of around a factor of 6, handling tolerance
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of ±20%.
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Likely not needed: digital calibration could be made with a [TOCON
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Adjustment board](https://sglux.de/en/product/tocon-adjustment-board/)
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(needs specific box to make setting).
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... | ... | @@ -61,8 +77,8 @@ Adjustment board](https://sglux.de/en/product/tocon-adjustment-board/) |
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- Holds
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- TOCON
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- Needs to be mounted at 90 degrees as on front-side of box.
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****\*\*Needs an additional board?
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- Needs to be mounted at 90 degrees as on front-side of box.
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- Needs an additional board?
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- Ask sglux if TOCON can come with wires or a low-cost
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connector allowing assembly at 90 degrees
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- Push button (height should be right)
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... | ... | @@ -70,9 +86,11 @@ Adjustment board](https://sglux.de/en/product/tocon-adjustment-board/) |
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- Display/voltmeter
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- Needs careful adjustment in height, or with socket that
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allows movement? Or wire the display up to the PCB?
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- Allow for hole to reach calibration screw
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- Allow for hole in PCB to reach calibration screw
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- Resistors for the full-scale adaptation from 0-5V to 0-2V (1%
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metal-film)
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- Need attenuation of around a factor of 6, handling tolerance
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of ±20%
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- Tolerance of TOCON ±20%. Should be able to handle this.
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- Use high-precision potentiometer?
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- Use selectable resistors?
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... | ... | @@ -100,6 +118,7 @@ sglux |
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at 90 degrees?
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2. What is on the settings board? Digital potentiometer? Schematics
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available?
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3. Which TOCON
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Other
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