If you have another amp meter of any kind you can put them in the same circuit side by side and see how much they differ. A bit of last digit fruit machining on any digital device is quite normal. If it is your only meter, then maybe cal becomes more important, but otherwise just sanity check it against another known good from time to time.
What about a sanity check in conjunction with a RCD tester set at i/2 NoTrip?
My tester is a Megger RCDT320 so I could use 10/2 Milliamps, 30/2 Milliamps ?
If you have another amp meter of any kind you can put them in the same circuit side by side and see how much they differ. A bit of last digit fruit machining on any digital device is quite normal. If it is your only meter, then maybe cal becomes more important, but otherwise just sanity check it against another known good from time to time.
What about a sanity check in conjunction with a RCD tester set at i/2 NoTrip?
My tester is a Megger RCDT320 so I could use 10/2 Milliamps, 30/2 Milliamps ?
