I've got a relatively low-wattage, low-draw set-up going on in my grow space and tonight I saw something very odd, and I'm trying to rule out that it's a piece of equipment, and not the house wiring/extension cords or even the brand new power strip I have..
To give you some background on the set-up:
- 2x MarsII 400w (equivalent) LED panels
- 1x KingLED 800w (equivalent) LED panel
- 4x small aquarium pumps (set to 2x 15min feed intervals)
- 2 port air pump w/ 2 airstones
- Mars Hydro 190cfm scrubber fan w/ carbon filter
- 1x Larger fan
- 2x small clip-on fans
- *24/7 Nutrient Meter (measures pH, water temp, PPMs (at 0.7 conversion)
That's it for electrical in the area. There are several small extension cords I use to feed the pumps (super-low draw), one for the fans, one for the power strip that holds the air pump and lights (on separate timer).
The extension cord feeding all of this is a 14ga wire, approximately 50ft in length..
Up until tonight, when I changed out my reservoir, I would unplug the feeding timer, and just use one of the pumps to drain the reservoir into jugs to be dumped into the yard/flower beds, and then would re-attach it to the drip rings when I was done and the pH was set, so I could run the system to verify everything worked.. Well, as I was mixing up my nute mix, I thought I had it dialed in, until I plugged in the timer w/ the pumps, pumps O. My PPM and Temp (both same probe), jumped nearly 10%!!!!! I have a back-up battery-operated reservoir thermometer that I use to double check things, and it stayed exactly where it was when I finished filling the reservoir..
When I started unplugging things, the numbers went back down.. Thankfully, I have an EC stick that I checked it w/ and it was pretty damn close to the original numbers (slightly different conversion ratio)..
I started unplugging things and ultimately, as soon as I went to the large splitter coming into the area, it still got the numbers to jump.. I'm sorta leaning towards it being the meter, however a couple folks over at 420mag swear by these things. I highly doubt it's a calibration issue, and think it is either the power supply, feed wires or some sort of anomaly where I may need a power conditioner in between my feed wire and the rest of my set-up.. I verified connections were tight and probes were still in their correct locations.. Short of pulling out the multimeter, anyone have any insights?? I've know some appliances to brown-out when a moderate load is placed on a line, however, with EVERYTHING running, I'm only drawing about 650w, so that doesn't seem quite right to me.. That's verified by a Kill-a-watt, so that's about as accurate as I can estimate at this point..
Any ideas are greatly appreciated!!!!!!!!!!!!!!
To give you some background on the set-up:
- 2x MarsII 400w (equivalent) LED panels
- 1x KingLED 800w (equivalent) LED panel
- 4x small aquarium pumps (set to 2x 15min feed intervals)
- 2 port air pump w/ 2 airstones
- Mars Hydro 190cfm scrubber fan w/ carbon filter
- 1x Larger fan
- 2x small clip-on fans
- *24/7 Nutrient Meter (measures pH, water temp, PPMs (at 0.7 conversion)
That's it for electrical in the area. There are several small extension cords I use to feed the pumps (super-low draw), one for the fans, one for the power strip that holds the air pump and lights (on separate timer).
The extension cord feeding all of this is a 14ga wire, approximately 50ft in length..
Up until tonight, when I changed out my reservoir, I would unplug the feeding timer, and just use one of the pumps to drain the reservoir into jugs to be dumped into the yard/flower beds, and then would re-attach it to the drip rings when I was done and the pH was set, so I could run the system to verify everything worked.. Well, as I was mixing up my nute mix, I thought I had it dialed in, until I plugged in the timer w/ the pumps, pumps O. My PPM and Temp (both same probe), jumped nearly 10%!!!!! I have a back-up battery-operated reservoir thermometer that I use to double check things, and it stayed exactly where it was when I finished filling the reservoir..
When I started unplugging things, the numbers went back down.. Thankfully, I have an EC stick that I checked it w/ and it was pretty damn close to the original numbers (slightly different conversion ratio)..
I started unplugging things and ultimately, as soon as I went to the large splitter coming into the area, it still got the numbers to jump.. I'm sorta leaning towards it being the meter, however a couple folks over at 420mag swear by these things. I highly doubt it's a calibration issue, and think it is either the power supply, feed wires or some sort of anomaly where I may need a power conditioner in between my feed wire and the rest of my set-up.. I verified connections were tight and probes were still in their correct locations.. Short of pulling out the multimeter, anyone have any insights?? I've know some appliances to brown-out when a moderate load is placed on a line, however, with EVERYTHING running, I'm only drawing about 650w, so that doesn't seem quite right to me.. That's verified by a Kill-a-watt, so that's about as accurate as I can estimate at this point..
Any ideas are greatly appreciated!!!!!!!!!!!!!!
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