IRS recommends a recalibration within 2 years.
The calibration should be performed at multiple calibration points for all 7 ranges. IRS recommends measuring at least the following currents.
| Range | Calibration points |
|---|---|
| 100 uA | 20 uA, 40 uA, 60 uA, 80 uA, 100 uA |
| 1 mA | 0.2 mA, 0.4 mA, 0.6 mA, 0.8 mA, 1 mA |
| 10 mA | 2 mA, 4 mA, 6 mA, 8 mA, 10 mA |
| 100 mA | 20 mA, 40 mA, 60 mA, 80 mA, 100 mA |
| 1 A | 0.2 A, 0.4 A, 0.6 A, 0.8 A, 1 A |
| 10 A | 2 A, 4 A, 6 A, 8 A, 10 A |
| 100 A | 20 A, 40 A, 60 A, 80 A, 100 A |
CMM values should be captured with the function (IRS.CmmIV.Lib.CmmCommands).ReadMinimumAverageMaximum. This function returns the value averaged since last read.
Before capturing a valid value, enable the calibration current, perform a dummy read and wait 100 ms.
The fluctuations of the power source used should not exceed 0.1% of the nominal value.
Documents and downloads
Further documents and files for your IRS product are available on myIRS.