Operation Manual

MI 3310 / MI 3310A SigmaGT Autotest sequences
107
Proceeds to the next autotest sequence measurement (in single
measurement mode only).
CHG ON (F2) The instrument automatically changes L and N polarity of connected
welding equipment during the test (suitable for 1-phase equipment
with schuko plug). Higher measured current will be considered.
CHG OFF (F2) Disables the automatic change of polarity function.
ENTER
Proceeds to the next autotest sequence measurement (in continuous
measurement mode only).
REPEAT (F3) Repeats the touch leakage current measurement.
SKIP (F4) Skips the touch leakage current measurement.
HELP
Displays the touch leakage current test help screens.
ESC
Ends the autotest sequence.
6.6.10 No load voltage
Measurement is described in chapter 5.3.9 No load voltage. If this voltage test fails or
was skipped other tests will not be carried out because of safety.
No load voltage autotest menu
Keys:
AC/ DC (F2) The instrument sets appropriate limit values – depends on the
welding machine’s operating mode.
START
Starts the No load voltage measurement.
ENTER
Proceeds to the next autotest sequence measurement.
REPEAT (F3) Repeats the No load voltage measurement.
SKIP (F4) Skips the No load voltage measurement.
HELP
Displays the No load voltage test help screen.
ESC
Ends the autotest sequence.
6.6.11 TRMS current measurement using clamp current adapter
Refer to chapter 5.2.9 Clamp current test for reference.
6.6.12 Functional test
Refer to chapter 5.2.11 Functional test for reference.