What is the recommended current shunt connection for my eDAQ High Level, Simultaneously Sampled layer?
If you want to measure the current flowing through an electrical load, we highly recommend using a non-contact probe or pick-up*.
Another method of measuring current is illustrated below. By measuring the Voltage drop across a Resistor (shunt) that is in series with the electrical load you can determine the current through the resistor which is equal to the electrical load current.
For TCE calibration use defined value and defined span. Defined value will be zero volts equals zero amps. The defined span can be determined by using the mV/Amp rating of the current shunt or by using Ohm’s Law (I=E/R).
DO NOT install a resistive shunt on the power supply side of the electrical load being measured (see second circular diagram). Doing so may cause damage to the HLSS layer, the eDAQ or both.
Make sure all connections to the current shunt are tight and a large enough conductor, for the given application, is used between the shunt and ground. Failure to do so, could cause unwanted current through the eDAQ’s ground tap or HLSS layer.
*Current probe vendors include:
