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Sun Jan 02, 2005, 10:21 AM
#11
Hi Bad Inferno,
have you had any luck with a water level switch design?
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Sun Jan 02, 2005, 11:03 AM
#12
Yeah...I got two off ebay US5.00 each and awit delivery.
http://cgi.ebay.com.au/ws/eBayISAPI....e=STRK:MEWN:IT
Plans have changed alittle as I have not found a real solution for a solenoid besides 240VAC.
I was going to gravity feed fresh water into the sump and control a solenoid however I think I will just use a small powerhead in the water reservoir and pump it into the sump. Have the water level switch turn on a 12VDC relay with contacts rated for 240VAC.
To empty use another powerhead (on a simple 240VAC timer) in the sump and just pump it out for 1 minute. Position the powerhead in the sump so that it does not empty the sump.
I was talking to you about the FAB PLC I think....Better to use a Direct Logics plc as this has RTD inputs although price is starting to increase dramatically and has just become a dream
http://web5.automationdirect.com/adc...c_06/PLC_Units
This PLC has comms...Modbus over RS485 which you could connect to your PC
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