5/30/2011 12:16 AM | |
Posts: 5 Rating: (0) |
First of all i thank you for my dummy questions. I connected my instrument ampheremeter inline (series) with the cable of the auxiliary power at number 1(+). Knowing the range of temperature -50 to 400 degree Celcius the sensor at the home temperature 25 degree Celsius should give me aproximately 6miliAmphere, but I measure just 2 microAmphere. I read that numbers 1 and 2 are for the connection of sensor to profibus. (???) So can any one give me any scheme more real how to measure with amphereMeter? Or at least to know if all these sensors are dead (burned-up). For the "UMENCHO" (look at page 24ht). please can you give me the link for that ebook? Thank you. |
5/30/2011 9:10 AM | |
Joined: 3/21/2006 Last visit: 10/7/2024 Posts: 10229 Rating: (1181) |
Hello, Look there - http://www.sensorland.com/HowPage028.html. Are sure in multimeter in current masurments - means, eventually make a measurements in some other place in order to be sure. http://support.automation.siemens.com/WW/view/en/23831905 best regards, Hristo Mihalev |
5/30/2011 1:34 PM | |
Joined: 3/21/2006 Last visit: 10/7/2024 Posts: 10229 Rating: (1181) |
Most probably internal fuse of multimeter burned. So, just open it using a screwdriver and change it. About analog input in case of s7-200 - How can you scale analog values with S7-200 in conjunction with CPU224XP and expansion modules EM 231, EM 232 and EM 235?and important there is all readigs are 0-20mA in case of current. For that reason you should scalled it to 4-20mA. best regards, Hristo MIhalev |
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