frako EM-PQ 2500, Руководство по эксплуатации

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Illu. Example, direct current measurement.
EM-PQ 2500
Illu. Example, current measurement with an ad-
ditional ampere meter.
Ampere meter
If you do not want to measure the current with
the EM-PQ2500 alone, but also with an additi-
onal ampere meter, the ampere meter must be
switched in series to the EM-PQ2500.
EM-PQ 2500
Installation
Direct measurement
Nominal currents up to 5A can also be directly
measured with the EM-PQ2500.
Under consideration that the direct measure-
ment will be carried out for the current only in
three phase 4 wire systems with mains voltage
till
• 127V/220V (300V CAT III) according UL
• 277V/480V (300V CAT III)
and three phase 3 wire systems with mains volt-
age till
• 277V (300V CAT III) according UL
• 480V (300V CAT III)
Due to the fact that the EM-PQ2500 does not
have integrated protection for the current meas-
urement, this protection must be foreseen in the
installation.