Gritzner 1002 - Electrical Safety Test; Electrical Safety Test with ABB Metrawatt M 5013

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Safety test
32. Electrical safety test
According to the German law on safe machine operation of June 24, 1986, VDE regulations are the
recognized rules in the field of electrical engineering and form the basis for electrical safety tests
of technical appliances.
The required electrical tests for the appliances are laid down in paragraph 4 of the regulations for repair,
modification and testing of electrical appliances (VDE 0701, edition 10.86).
We are obliged to perform a test in accordance with VDE 0701 on every electrical appliance
after repair.
In European foreign countries, there are similar regulations in force which are largely identical with
the requirements of the VDE 0701.
33. Electrical safety test with ABB Metrawatt M 5013
I) Main power voltage test: Volt = V
● For all following tests insert plug of ABB Metrawatt M 5013 into a grounded electrical outlet.
● Set the testing range switch at “250 V” (fig. 33).
If there is main power voltage, the LCD shows the respective value (230 V +/- 10%).
● The contact field is located a bit to the right just below the knob for the measuring range.
Touch this field with your finger to check the ground lead of the electrical outlet.
Signal lamp “PE” just above the contact field will light up if the ground lead is out of order.
● Insert plug of sewing machine into the main power connection of ABB Metrawatt M 5013.
● Operate the machine.
● Meter reading: 230 V +/- 10%
● Measuring appliance M 5013 can only be used with main power voltages from 207 V to 253 V
(230 V +/- 10%).
II) Appliance current test: Ampere = A
● Leave sewing machine plug in mains socket.
● Set testing range switch at 16 A (fig. 34).
● Operate the machine.
● Meter reading: 0.5 A maximum.
III) Insulation resistance: M Ohm = M
● Insert plug of sewing machine in tester connection.
● Use clamp to attach test lead of testing appliance M 5013 to presser bar.
● Set testing range switch at “20 M Ohm” (fig. 35).
● Meter reading: minimum 2 M Ohm
● With meter readings higher than 20 M Ohm, appliance M 5013 displays the figure 1! In these cases,
the remark “Insulation resistance higher than 20 M Ohm” must be recorded in the testing certificate.
IV) Simulated leakage current test: Milliampere = mA
● Leave sewing machine plug in tester connection.
● Use clamp to attach test lead of testing appliance M 5013 to presser bar.
● Set testing range switch at “20 mA” (fig. 36).
● Meter reading: maximum 0.50 mA.