low cost 36 channel 24 volt datalogger
low cost 36 channel 24 volt datalogger
(OP)
Hi Everyone,
I am looking for a low cost 36 channel stand alone datalogger that will monitor 24 volt solenoids for one week. One minute sample rate per channel is all I need. I do not even need the voltage quantified. Just on or off.
Power is available at the test sites so it does not need to be battery operated. USB to retrieve the data would be ideal.
I don’t want to build voltage dividers and would like the unit to read 24 volt ac directly.
The smaller the unit the better, but cost is the main factor.
Thanks,
Andy
I am looking for a low cost 36 channel stand alone datalogger that will monitor 24 volt solenoids for one week. One minute sample rate per channel is all I need. I do not even need the voltage quantified. Just on or off.
Power is available at the test sites so it does not need to be battery operated. USB to retrieve the data would be ideal.
I don’t want to build voltage dividers and would like the unit to read 24 volt ac directly.
The smaller the unit the better, but cost is the main factor.
Thanks,
Andy





RE: low cost 36 channel 24 volt datalogger
When you say cost is important, what do you consider 'cheap' and what do you consider 'expensive'? £1000 = expensive? £10,000 = cheap? Without some figures to work against, "cost is the main factor" is a pretty meaningless observation. We don't know if you are a one-man-band or a government research facility.
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I don't suffer from insanity. I enjoy it...
RE: low cost 36 channel 24 volt datalogger
I need to validate the actual outputs (on or off)leaving the cabinet every minute over a weeks time. I'm looking for a standalone black box (not connected to a computer until ready for download)I can lock inside a control cabinet and retrieve a week later. (Hopefull data I can dump to excel.)
That less than 1/2 meg of bits storage needed. Only 12 meg if 32 bit bytes are taken each minute.
I am looking in the under $1000 range.
Thanks,
Andy
RE: low cost 36 channel 24 volt datalogger
http://www.grant-dataacquisition.com/
The following link looks like a possibility, if you can arrange a digital signal from the solenoid or from the solenoid driver. Cost looks to be in your ballpark - $725. You can spend the other $275 on arranging some digital signals from your solenoids! I've no experience with this company's products: I found it on Google by searching on "low cost data acquisition" without the " ". A lot of hits are for PC-based hardware, but there are some stand alone ones in there too.
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I don't suffer from insanity. I enjoy it...
RE: low cost 36 channel 24 volt datalogger
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: low cost 36 channel 24 volt datalogger
Andy,
Couple of major questions: do you have mains power at the location? If not, how much energy storage or generation do you have?
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I don't suffer from insanity. I enjoy it...