Keysight U1242C Service Manual

Also see for U1241C: Quick start guide User guide Quick start guide

Contents

Keysight U1242C Service Manual Manual pdf 40 page image

1 Calibration Procedures40 Keysight U1241C/U1242C Service GuideTo reset the calibration security code to its factory defaultIf you have forgotten the correct calibration security code, you may follow thesteps below to reset the calibration security code to the factory default code,.1 Note down the last four digits of the multimeter’s serial number (located at thebottom of the rear panel) before you begin.2 Press both and together for more than 1 second duringnormal operation mode to enter unsecured mode. will be displayed.3 Press for more than 1 second to enter the Default Security Code(dSC) mode.4 Enter the last four digits of the multimeter’s serial number.– Press or to move the cursor to the left or rightrespectively.– Press or to increment or decrement the digit respectively.5 Press to confirm your entry.– If the four digits entered are correct, the display will show briefly.The calibration security code is now set to its factory default code, .– If the incorrect security code is entered, an error code will appear briefly,after which the multimeter will prompt you for the security code again.– To enter a new security code, see “To change the calibration security code”on page 38. Ensure that you record down the new security code.See Figure 1-7 for the multimeter’s display.NOTE If you do not have a record (or have lost the record) of the security code, first trythe factory default code, .HoldLogShiftEscViewShiftEscViewHzMaxMinRangeAutoVsenseHoldLog