I am looking to find out what the minimum mA reading that the TA189 is capable of.
I would like to trace the current draw on a discharge cycle of a 3.7 volt 18650 battery.
The discharger will drop the load to a few mA as the battery voltage drops close to 3.2 volt stop point so I am wondering how low of a reading one could expect with the TA189.
I received a reply from my question above but I do not see it in the forum here for some reason.
I understand now that the TA018 would be better for my needs.
Can I ask what the significant differences are and why there is such a big price difference between the TA189 and the TA018?
What was the reason that TA018 was better than the TA189. I would say the TA018 would actual be worse, for low mA readings.
Accuracy- TA189 ± 1% of reading ± 2 mA TA018 ± 1.5% of reading ± 5 mA
The cost difference is due to the TA189 having better performance and accuracy.
If you are using one these clamps, I would wrap say 10 turns of the conductor around the clamp. Then divide the reading by the number of turns, this will give a better accuracy as you are measuring a higher current.
The information you were given by the support rep was incorrect, which is why the post was deleted, he is a new member of the team and misunderstood the specifications. I have also removed the text from your email so as not to confuse others.