LUX Meter- What Can I Do With It?

BostonBuds

BostonBuds

Well-Known Member
I have some new LED lights I want to try out and have a digital lux meter to play with. What can I use it for, if anything? I have read that a par meter is what should be used, maybe in the future i will get one, but for now i have this lux meter. 20200909_134730.jpg20200909_134716.jpg20200909_134905.jpg
 
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1212ham

Well-Known Member
Is that a Spider Farmer? This thread may help...

Slow yellowish growth under vero 29 3000k/3500k

https://imgur.com/a/uLLbG Updated pics, lights on and off with camera flash. Turned down the lights to 200 watts total and they are 22" above the canopy... I wanna say the clone looks slightly better (back right) but the one on the back left is still pretty light colored with some curling...
www.rollitup.org
 
HydroKid239

HydroKid239

Well-Known Member
To dial it in and do some math is all it takes for you to convert lux to par (I believe) Take the MFR Par chart.. Hang your light at the distances shown but place your meter in the center where a par meter would be placed. Do all 3 height test and figure out the conversion. (If I haven't smoked my last brain cell that will make sense) lol
 
10WeekFlushBro

10WeekFlushBro

Well-Known Member
Someone on this forum tested a lux meter against a PAR sensor and the lux meter was about 30% off, both sunlight and white leds. It's a useful tool for white leds if you know how wrong your meter is. Otherwise I would advise against trusting the readings completely.

edit: Since you are planning to compare two very similar (I assume) light sources the actual accuracy of the measurement is not important
 
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HydroKid239

HydroKid239

Well-Known Member
1212ham said:
Is that a Spider Farmer? This thread may help...

Slow yellowish growth under vero 29 3000k/3500k

https://imgur.com/a/uLLbG Updated pics, lights on and off with camera flash. Turned down the lights to 200 watts total and they are 22" above the canopy... I wanna say the clone looks slightly better (back right) but the one on the back left is still pretty light colored with some curling...
www.rollitup.org
Click to expand...
It's a viparspectra. Looks just like the Mars Hydro and SF updated boards.
 
BostonBuds

BostonBuds

Well-Known Member
1212ham said:
Is that a Spider Farmer? This thread may help...

Slow yellowish growth under vero 29 3000k/3500k

https://imgur.com/a/uLLbG Updated pics, lights on and off with camera flash. Turned down the lights to 200 watts total and they are 22" above the canopy... I wanna say the clone looks slightly better (back right) but the one on the back left is still pretty light colored with some curling...
www.rollitup.org
Click to expand...
I have a Viparspectra Pro Series P2000 and an XS Series X2000. I received the Pro Series first and then relized they have the XS Series, i want to know the difference.
20200830_154109.jpg
 
HydroKid239

HydroKid239

Well-Known Member
Check out this App called "Korona" I'm not even BS'ing you lol. The app is free for a LUX meter. I paid for the full spectrum LED PAR meter feature. it was $5 and some change.. Where can I go wrong? I tested the par with spider farmers graphs in the booklet and they were pretty spot on. At the least it's entertaining to play around with. It helped me with light placement and usage (Choosing between 3 different light styles and 5 lights total)
 

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10WeekFlushBro

10WeekFlushBro

Well-Known Member
Dont think you can get measurements that are worth a shit on android devices which all use a different camera/sensor/whatever. At least iphones use the same technology.
 
salmonetin

salmonetin

Well-Known Member
on the diy side...

learn.adafruit.com

Adafruit TSL2591 High Dynamic Range Digital Light Sensor

When the future is dazzlingly-bright, this ultra-high-range luminosity sensor will help you measure it. The TSL2591 luminosity sensor is an advanced digital light sensor, ideal for use in a wide range of light situations. Compared to low cost CdS cells, this sensor is more precise, allowing for...
learn.adafruit.com learn.adafruit.com


but maybe we can add UV sensor....

www.adafruit.com

Analog UV Light Sensor Breakout - GUVA-S12SD

Extend your light-sensing spectrum with this analog UV sensor module. It uses a UV photodiode, which can detect the 240-370nm range of light (which covers UVB and most of UVA spectrum). The ...
www.adafruit.com www.adafruit.com

...looking for the plants response to our lights...etc etc..

...the cams way...

on the cams seems to me there are some options on IR cam and UV cam ...the Spectral cams...the MultiSpectra cams....the Thermal cams...

there are other ways to look at the plants response...

...why not add a remote Canopy Leaf Temp (and others sensors too) on a diy grow lamp?...
...when i see some hardwares like down ...i realize mental diy tunning... now its not a gun in my diy mind... :fire:

www.agriculturesolutions.com

Infrared (IR) Thermometers / Plant Stress Monitors - Crop, Soil and Water Testing

Infrared (IR) Thermometers / Plant Stress Monitors Infrared thermometers are useful tools for measuring surface temperature of plants, tools equipment and nearly any other surface. Use to determine leaf temperature and plant stress caused by irrigation problems. The USDA has researched and...
www.agriculturesolutions.com www.agriculturesolutions.com

...y sigo aprendiendo de lo industrial y comercial sin comprar ni usar nada...

i like a lot the multi sensor way...on a Mesh net way ;-)

i told you Wilson

PD...por tu like Bro C add more pov...

learn.adafruit.com

Adafruit AMG8833 8x8 Thermal Camera Sensor

Panasonic's AMG8833 Grid-EYE is an 8x8 array of IR thermal sensors. When connected to your microcontroller (or raspberry Pi) it will return an array of 64 individual IR temperature readings over I2C.
learn.adafruit.com learn.adafruit.com


there are others thermal cams to help on LST...leaf surface temp...seems to me more economic on the future...
not included on normal diy lamps but hey... imagine with an small IA for the cam...
its hard to implement a LST sensor or an VPD and Dew Point sensor for an Comercial Grow Light on 2020?...:fire:

... ok add quantum sensors are expensive... then maybe add a good lux meter... yeah i know lumens its not the best way but we have some light info to play...Lux ...UV... IR ....Quantum...Thermal sensors for grow lights


...Wilson me pregunto si el sabra calibrar el lux meter?...yo sigo prefiriendo calibrar contra leds o lamparas de confianza... o tener un Dev Board AMS para jugar juasss...:fire:

PD 1...por tu like bro Moflow add more pov...

its like an message in a bottle...

On the excel sheet....

Pulse_Labs_VPD_Calculator_and_Chart_Maker.xlsx

on your vpd calculator...

we put the inputs data...
our air temperature
our relative humidity
our leaf temperature

to obtain the outputs data...
our air (and the leaf) vapour pressure deficit (vpd)

sorry im bad on maths...
im missing more outputs data using your spreadsheet...

examples on secondary outputs data....

starting on a knowing VPD "ideal" ...¿its possible Know other "posible" datas?

the air temperature? (knowing VPD + relative humidity + leaf temperature)
the relative humidity? (knowing VPD + air temperature + leaf temperature)
the leaf temperature? (knowing VPD + air temperature + relative humidity)

and others secondary output data like SVP (on air and the leaf)

why not add this "posible" outputs data on your spreadsheet?

i hope you have catch mine idea

Thanks in Advance...

...tu crees que los de Pulsegrow lo veran o lo tomaran en cuenta Wilson?...seguramente no...que pena...
...es que elegimos unas vias de comunicacion equivocadas....manias de un viejo naufrago....sorry...

PD 2....i like the hardware give me some diy ideas too...

www.30mhz.com

Pointed Microclimate sensor for measuring VPD and dew point30MHz

Measure VPD, dew point, leaf temperature and much more metrics
www.30mhz.com www.30mhz.com

...and on the cams way...more comercial info to take ideas for my future diy...:fire:

...no llevo prisa... ni doy... ;-)

VPD Sensors - CTgrow Control Systems shop

VPD Sensors
ctgrow.com ctgrow.com

...i told you Wilson... despicable me ...juasss




...Fellas...are you with me?...



Wilson...Minions...back to choza...infusion and vids time...curious seems to me some Bros and Sister dont like mi post...too ocupated... mucho lio.... jejejeje alla ellos Wilson...yo mientras sigo viendo y aprendiendo cosillas interesantes...

paz

Saludos
 
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