i was going to use a 20amp 50mv, or a 20amp 100mv current shunt or else a 60 amp 60 mv http://ie.farnell.com/jsp/search/browse.jsp;jsessionid=SIKTA2KFTBR3YCQLCIPZMMQ?N=0&Ntk=gensearch_001... and connect wires directly into the AI input terminals of the scc-68 from the current shunt would one of these current shunts be suitable. would current shunts such as these be suitable to use http://uk.farnell.com/elc/sh10020/shunt-sh10020-20a-100mv-1-class/dp/1319576 or http://uk.farnell.com/datel/3020-01098-0/shunt-50mv-20a/dp/1339338. is it ok to use these current shunts as they are not isolated from the scc-68. could these current shunts damage the scc-68 or are they ok to use.
is it ok to use either a current shunt or should a hall effect sensor be used such as this http://ie.farnell.com/honeywell-s-c/csla2cd/sensor-hall-effect/dp/1082269 . which of them would be more accurate or are both of them fairly accurate. how can i wire up the hall effect sensor as i was looking at sites where other people used hall effect sensor but they had the sensor wired on to a circuit board and then wired into labview
when i am measuring a voltage of 12-15 volts can i connect two resistors between the positive and negative wires going to the battery from a charge controller and connect two wires from either side of the resistor connected to the positive wire directly into the analog inputs of the scc-68 and measure the 12-15 volts directly or would the pci 6221 and scc-68 be able to measure the voltage drop across the resistor or should i connect across the resistor connected to the negative wire to the scc-68
