Turn a smart phone into a signal generator

The calibrator that you choose for the occupation needs to have these qualities:

Its specifications must be four times greater than the specification of this DMM Digital Multimeter it's analyzing.

Its works will need to pay for the functions of this DMM Digital Multimeter in China that it calibrates. DMMs have five or more purposes, with several ranges per purpose. The calibration process should affirm the DMM Digital Multimeter for sale is appropriate to use by means of this complete assortment of capabilities.

Frequently the DMM's guide will urge functions and minimal specifications required to calibrate the DMM correctly. The manufacturer should supply all of the test points and pass/fail limitations as evaluated against their own specification.