Just installed a new pH controller. New controller has 4-20mA output for data recorder. Old recorder says input sensitivity equals 1mA. Do they mean the input is 0 - 1mA? If so are there any signal converters on the market to convert 4-20mA, or 0-20mA, to 0-1mA?
P.S. The recorder is a...
I'm planning on converting a small office in my house into a large bathroom. I had an idea last night that seems pretty interesting to me. I would like to remove the ceiling (drywall and ceiling joists) finish the attic portion above the room and make it a vaulted ceiling. I know I'll probably...
How far can I reliably and accurately transmit a 4-20 mA Signal over a twisted pair shielded cable? I need to go about 150 ft. What AWG cable should I use? I'll be connecting a voltage/current meter with a 4-20mA output to a PLC.
Thanks guys,
Pete
I'm in the conception phase of a new project and wondering if I can use a PLC as the control device. I need to measure the opacity of a solution, most likely using a diode-receiver pair with a proportional voltage output. My question is how precise of a measurement can I obtain with a plc...
