OkiePC
Lifetime Supporting Member
Bad power supply damaged the output of DP transmitter measuring flow at a customer site.
After a storm rolled through, they had multiple failures. I got all of it working again ... except this last item ... after replacing a bad power supply, two signal isolators and some 'puter stuff needed to be reset.
I was reading 60+ vac on top of what was supposed to be 24vdc supplying loop power to two devices, and now the transmitter puts out 50mA all the time.
It looks like this one:
http://www.lesman.com/unleashd/cata...-ST800/180-HW-Smartline-ST800-transmitter.jpg
Only it is all blue and has an analog gauge in the window. There was no mfg. name on the data plate, and I have no idea how old it is (the plant was built in the 1920s).
I need something similar to install in its place at a reasonable cost. The old one was 0-150IWC and 4-20mA I am assuming WC means inches of water column.
If I can find one that has the same range, it will save me the trouble of having to rewrite the math in the DL06 PLC. A similar mechanical design will be helpful too, so I do not have to spend too much time pretending to be a plumber.
I have never even worked on one of these before, so I do not know if the electronics can be replaced. I did not find isolation valves, but I also did not crawl down in the pit where the lines attach to the main water line, so shutting them down to work on this thing might be a wet mess.
So who and where is a good source for one of these things?
Thanks,
Paul
EDIT: I forgot I had a picture of the data plate in my phone. p/n is 1151DP4E22B3M1
Rosemount might be right ... We thought we had one located for around $1000 from Omega, but it was discontinued. I already got approval to spend that much from the customer.
After a storm rolled through, they had multiple failures. I got all of it working again ... except this last item ... after replacing a bad power supply, two signal isolators and some 'puter stuff needed to be reset.
I was reading 60+ vac on top of what was supposed to be 24vdc supplying loop power to two devices, and now the transmitter puts out 50mA all the time.
It looks like this one:
http://www.lesman.com/unleashd/cata...-ST800/180-HW-Smartline-ST800-transmitter.jpg
Only it is all blue and has an analog gauge in the window. There was no mfg. name on the data plate, and I have no idea how old it is (the plant was built in the 1920s).
I need something similar to install in its place at a reasonable cost. The old one was 0-150IWC and 4-20mA I am assuming WC means inches of water column.
If I can find one that has the same range, it will save me the trouble of having to rewrite the math in the DL06 PLC. A similar mechanical design will be helpful too, so I do not have to spend too much time pretending to be a plumber.
I have never even worked on one of these before, so I do not know if the electronics can be replaced. I did not find isolation valves, but I also did not crawl down in the pit where the lines attach to the main water line, so shutting them down to work on this thing might be a wet mess.
So who and where is a good source for one of these things?
Thanks,
Paul
EDIT: I forgot I had a picture of the data plate in my phone. p/n is 1151DP4E22B3M1
Rosemount might be right ... We thought we had one located for around $1000 from Omega, but it was discontinued. I already got approval to spend that much from the customer.
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