MI 3321 MultiservicerXA
Autotest sequences
92
7.5 Performing autotest sequences
– for appliances
7.5.1
Visual inspection
A thorough visual check must be carried out before each electrical safety test.
Following items should be checked:
- Inspection of DUT for sign of damage.
- Inspection of flexible supply cable for damage.
- Any signs of pollution, moisture, dirt that can jeopardize safety. Especially
openings, air filters, protection covers and barriers must be checked!
- Are there signs of corrosion?
- Are there signs of overheating?
- Inscriptions and marking related to safety must be clearly readable.
- Installation of the DUT must be performed according to the Instruction manuals.
- During visual inspection the measuring points for the electrical testing have to be
determined too.
If the visual test passes, the instrument automatically proceeds with the next test in the
sequence.
If the visual test fails the user must evaluate if it is safe to proceed with the
measurements.
Visual test menu
Keys
PASS
(F1)
Confirms that the visual inspection passed.
SKIP
(F4)
Skips visual test.
FAIL
(F5)
Ends the autotest sequence.
7.5.2
Earth bond resistance measurement
Measurement is described in chapter
6.2.1 Earth bond resistance
.
If the earth bond test fails or was skipped other tests (except Polarity) will not be carried
out because of safety.
Keys
START
Starts the earth bond resistance measurement.
Proceeds with the next earth bond resistance measurement
(in continuous mode).
Proceeds to the next autotest sequence measurement (in single
measurement mode only).
