current sinking pulse
Tobias
Posts: 95
I am getting a flow meter, its voltage ranges from 5-24 vdc and the output is a current sinking pulse of 6-24v it also gives you an option of hooking it up npn type or pnp, how is the best way to go about this? I don't think I can hook it up direct to the bs2 and use the pulse-in command because its voltage range is to high or could I use a in line resistor? Your responds will be greatly appreciated Thanks
Thank You Toby
Thank You Toby
Comments
150 PSI (10 bar)
+1% of full scale
input: 5-24 Vdc, 2 mA min
output: Current sinking pulse, 6-24 Vdc
Yes Thats about all the useful information I''ve got.
Thanks Toby
150 PSI (10 bar)
+1% of full scale
input: 5-24 Vdc, 2 mA min
output: Current sinking pulse, 6-24 Vdc
Yes Thats about all the useful information I''ve got.
Thanks Toby
http://www.globalw.com/downloads/SMProduct/spx.pdf
Surprisingly it had little info more than what you already provided! First off, 24vdc is a pretty common number for controllers, so I would suspect it is telling you that it is capable of sinking up to 24vdc. I doubt it is actually generating the 24vdc- it can just pulse it low. It looks to me like you would be safe powering it with 5vdc and then letting it sink a pulled up stamp pin. Just keep a fire extiguisher handy!
Though there are a couple of ways you could go about reading the sensor. You could use the PULSIN Command (PULSIN 0,0,Flow), like you suggested but this wouldn't yield very accurate results. I would suggest you use the Count camand. like Count 0,1000,Flow.