17
The ammeter range is independent of the current output, and is therefore possible to meter
low currents very accurately from the lower voltage range, giving the best control of the output
current.
The unit has an electronic trip circuit that monitors the output current and switches the output
off if the trip value exceeds 105% of full scale of the metering range selected.
1.3.6
Auxiliary AC Voltage Output
The auxiliary AC voltage output is fixed at 110 Vac with a maximum output current of 300mA,
duty cycle 5 min on, 15 min off. The output is switched independently of the main output. The
voltage and current from this output may be metered using the auxiliary metering input.
1.3.7
Auxiliary Metering Input
The 200A-3PH mk2 has an auxiliary metering input which can be used to measure AC voltage
or current, frequency, and the phase between the main output and the auxiliary input. The unit
may measure either voltage or current derived quantities by selecting the appropriate input on
the front panel.
Two inputs are provided, one for voltages up to 300V and the other for currents up to 10A.
The input in use is automatically selected by the unit. Do not connect to both of the inputs
simultaneously.
WARNING
Voltage input
Current input
Figure 1.8 Auxiliary inputs
Figure 1.7 Auxiliary AC output
Do not exceed the input ratings
Содержание 200A-3PH mk2
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Страница 45: ...45 Figure 5 3 Connections between units 3 WIRE SUPPLY OPTIONAL T R LINK LEAD...
Страница 48: ...48 8 DRAWINGS REQUIRED A2 001947 latest issue 200A 3PH mk2...